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ACDelco 12637786 Engine Cylinder Head Gasket


Brand:	ACDelco
Part Number:	12637786
UPC:	00808709358831
Weight:	0.78 lbs
Condition:	New

On Sale:

$49.24

Availability:

31 in Stock

Warehouse:

US-4

Quantity:

Product Information

Description:

Get the ACDelco 12637786 Engine Cylinder Head Gasket for your vehicle. Buy now and secure your purchase online!

GM Genuine Parts Engine Cylinder Head Gasket are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
GM regularly updates production and service part designs to integrate new materials and technologies
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

Specifications:

Color:

Black

Configuration:

One Piece

Cylinder Bore Diameter:

4.14 in.

Gasket Face Width (in):

8.228in

Gasket Face Width (mm):

209mm

Gasket Glue Included:

Grade Type:

Regular

Height (in):

0.1 in

Length (in):

20.6 in

Material:

Multi-Layer Steel

Programming Required:

Thickness:

0.043 in.

Thickness:

1.1 mm

Weight (lb):

0.78 lb

Width (in):

8.2 in

Country of Origin:

Select a vehicle to narrow ACDelco 12637786 Engine Cylinder Head Gasket fitment info!

Last Updated: 04/09/2024

Years

Vehicle

Per Vehicle

Position

Fit Notes

Fitment Notes

Chevrolet Express 2500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

Chevrolet Express 2500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

1 Per Vehicle

Chevrolet Express 2500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

Chevrolet Express 2500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

1 Per Vehicle

Chevrolet Express 2500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

Chevrolet Express 2500

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

1 Per Vehicle

Chevrolet Express 3500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

Chevrolet Express 3500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

1 Per Vehicle

Chevrolet Express 3500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

Chevrolet Express 3500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

1 Per Vehicle

Chevrolet Express 3500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

Chevrolet Express 3500

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

1 Per Vehicle

Chevrolet Express 4500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

Chevrolet Express 4500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

1 Per Vehicle

Chevrolet Express 4500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

Chevrolet Express 4500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LML
8th VIN Digit: 8

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LML
8th VIN Digit: 8

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

1 Per Vehicle

2006

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

1 Per Vehicle

2006

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LB7
8th VIN Digit: 1

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LB7
8th VIN Digit: 1

1 Per Vehicle

2007

Chevrolet Silverado 2500 HD Classic

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

Chevrolet Silverado 2500 HD Classic

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

1 Per Vehicle

2006

Chevrolet Silverado 3500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

Chevrolet Silverado 3500

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

1 Per Vehicle

2006

Chevrolet Silverado 3500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

Chevrolet Silverado 3500

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

1 Per Vehicle

Chevrolet Silverado 3500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

Chevrolet Silverado 3500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

1 Per Vehicle

Chevrolet Silverado 3500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LB7
8th VIN Digit: 1

Chevrolet Silverado 3500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LB7
8th VIN Digit: 1

1 Per Vehicle

2007

Chevrolet Silverado 3500 Classic

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

Chevrolet Silverado 3500 Classic

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

1 Per Vehicle

Chevrolet Silverado 3500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LML
8th VIN Digit: 8

Chevrolet Silverado 3500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LML
8th VIN Digit: 8

1 Per Vehicle

Chevrolet Silverado 3500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

Chevrolet Silverado 3500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

1 Per Vehicle

Chevrolet Silverado 3500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

Chevrolet Silverado 3500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

1 Per Vehicle

GMC Savana 2500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

GMC Savana 2500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

1 Per Vehicle

GMC Savana 2500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

GMC Savana 2500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

1 Per Vehicle

GMC Savana 2500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

GMC Savana 2500

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

1 Per Vehicle

GMC Savana 3500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

GMC Savana 3500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

1 Per Vehicle

GMC Savana 3500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

GMC Savana 3500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

1 Per Vehicle

GMC Savana 3500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

GMC Savana 3500

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

1 Per Vehicle

GMC Savana 4500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

GMC Savana 4500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

1 Per Vehicle

GMC Savana 4500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

GMC Savana 4500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

1 Per Vehicle

GMC Sierra 2500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LML
8th VIN Digit: 8

GMC Sierra 2500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LML
8th VIN Digit: 8

1 Per Vehicle

GMC Sierra 2500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

GMC Sierra 2500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

1 Per Vehicle

GMC Sierra 2500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

GMC Sierra 2500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

1 Per Vehicle

2006

GMC Sierra 2500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

GMC Sierra 2500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

1 Per Vehicle

2006

GMC Sierra 2500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

GMC Sierra 2500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

1 Per Vehicle

GMC Sierra 2500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

GMC Sierra 2500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

1 Per Vehicle

GMC Sierra 2500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LB7
8th VIN Digit: 1

GMC Sierra 2500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LB7
8th VIN Digit: 1

1 Per Vehicle

2007

GMC Sierra 2500 HD Classic

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

GMC Sierra 2500 HD Classic

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

1 Per Vehicle

2006

GMC Sierra 3500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

GMC Sierra 3500

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

1 Per Vehicle

2006

GMC Sierra 3500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

GMC Sierra 3500

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

1 Per Vehicle

GMC Sierra 3500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

GMC Sierra 3500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

1 Per Vehicle

GMC Sierra 3500

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LB7
8th VIN Digit: 1

GMC Sierra 3500

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LB7
8th VIN Digit: 1

1 Per Vehicle

2007

GMC Sierra 3500 Classic

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

GMC Sierra 3500 Classic

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LBZ
8th VIN Digit: D
Mfr Code: 1000

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LML
8th VIN Digit: 8

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LML
8th VIN Digit: 8

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

1 Per Vehicle

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

1 Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

GMC Sierra 3500 HD

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

1 Per Vehicle

ACDelco 12637786 Engine Cylinder Head Gasket

$49.24

Product Information

Description:

Features and Benefits:

Specifications:

Select a vehicle to narrow ACDelco 12637786 Engine Cylinder Head Gasket fitment info!

Chevrolet Express 2500 6.6L V8 Diesel OHV Turbo

1

Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LGH8th VIN Digit: L

Chevrolet Express 2500

6.6L V8 Diesel OHV Turbo Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LGH8th VIN Digit: L 1 Per Vehicle

Chevrolet Express 2500 6.6L V8 Diesel OHV Turbo

1

Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LMM8th VIN Digit: 6

Chevrolet Express 2500

6.6L V8 Diesel OHV Turbo Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LMM8th VIN Digit: 6 1 Per Vehicle

Chevrolet Express 2500 6.6L V8 Diesel OHV Turbo

1

Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006 GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LLY8th VIN Digit: 2

Chevrolet Express 2500

6.6L V8 Diesel OHV Turbo Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006 GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LLY8th VIN Digit: 2 1 Per Vehicle

Chevrolet Express 3500 6.6L V8 Diesel OHV Turbo

1

Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LGH8th VIN Digit: L

Chevrolet Express 3500

6.6L V8 Diesel OHV Turbo Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LGH8th VIN Digit: L 1 Per Vehicle

Chevrolet Express 3500 6.6L V8 Diesel OHV Turbo

1

Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LMM8th VIN Digit: 6

Chevrolet Express 3500

6.6L V8 Diesel OHV Turbo Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LMM8th VIN Digit: 6 1 Per Vehicle

Chevrolet Express 3500 6.6L V8 Diesel OHV Turbo

1

Left (Driver)

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006 GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LLY8th VIN Digit: 2

Chevrolet Express 3500

6.6L V8 Diesel OHV Turbo Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006 GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LLY8th VIN Digit: 2 1 Per Vehicle

Chevrolet Express 4500 6.6L V8 Diesel OHV Turbo

1

Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LGH8th VIN Digit: L

Chevrolet Express 4500

6.6L V8 Diesel OHV Turbo Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LGH8th VIN Digit: L 1 Per Vehicle

Chevrolet Express 4500 6.6L V8 Diesel OHV Turbo

1

Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LMM8th VIN Digit: 6

Chevrolet Express 4500

6.6L V8 Diesel OHV Turbo Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LMM8th VIN Digit: 6 1 Per Vehicle

Chevrolet Silverado 2500 HD 6.6L V8 Diesel OHV Turbo

1

Left (Driver)

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LML8th VIN Digit: 8

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED FOR GRADE SEL, SEE SI2000 DOC ID #671425Eng: LML8th VIN Digit: 8 1 Per Vehicle

Chevrolet Silverado 2500 HD 6.6L V8 Diesel OHV Turbo

1

Chevrolet Express 2500

6.6L V8 Diesel OHV Turbo

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

1 Per Vehicle

Chevrolet Express 2500

6.6L V8 Diesel OHV Turbo

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

1 Per Vehicle

Chevrolet Express 2500

6.6L V8 Diesel OHV Turbo

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

1 Per Vehicle

Chevrolet Express 3500

6.6L V8 Diesel OHV Turbo

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

1 Per Vehicle

Chevrolet Express 3500

6.6L V8 Diesel OHV Turbo

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

1 Per Vehicle

Chevrolet Express 3500

6.6L V8 Diesel OHV Turbo

NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

6.6L V8 Diesel OHV Turbo

Left (Driver) NOTE:SEE REVISED TORQUE SPECS PER TSB 06-06-01-006
GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LLY
8th VIN Digit: 2

1 Per Vehicle

Chevrolet Express 4500

6.6L V8 Diesel OHV Turbo

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LGH
8th VIN Digit: L

1 Per Vehicle

Chevrolet Express 4500

6.6L V8 Diesel OHV Turbo

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LMM
8th VIN Digit: 6

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo

GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LML
8th VIN Digit: 8

6.6L V8 Diesel OHV Turbo

Left (Driver) GRADE B)(NEW HEAD BOLTS REQUIRED WHEN HEAD IS REMOVED
FOR GRADE SEL, SEE SI2000 DOC ID #671425
Eng: LML
8th VIN Digit: 8

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo