Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009

ACDelco 12555630 Engine Cylinder Head

ACDelco 12555630 Engine Cylinder Head Image 1
ACDelco 12555630 Engine Cylinder Head Image 2
ACDelco 12555630 Engine Cylinder Head

ACDelco
Brand:ACDelco
Part Number: 12555630
UPC: 195491209602
Weight: 32.31 lbs
Condition:New



On Sale:

$590.55

Availability:
1 in Stock
Warehouse: US-12
Quantity:

Product Information

Description:

Get the ACDelco 12555630 Engine Cylinder Head for your vehicle. Buy now and secure your purchase online!

GM Genuine Parts Engine Cylinder Head 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:

Grade Type:
Regular
Length:
15.33 in.
Length:
387.6 mm
Material:
Aluminum
Programming Required:
No
Width:
195.47 mm
Width:
7.69 in.
Country of Origin:
US

Select a vehicle to narrow ACDelco 12555630 Engine Cylinder Head fitment info!

Last Updated: 05/30/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes
Chevrolet Astro

4.3L V6 Gas OHV
2
 
 

Chevrolet Astro



4.3L V6 Gas OHV
2 Per Vehicle
Chevrolet Astro

4.3L V6 Gas OHV
2
 
JAPANESE EMISSION(NA3),CALIF EMIS LEV(NC1),CALIF EMIS SYS(NC8),FED EMIS SYS(NF2)
 

Chevrolet Astro



4.3L V6 Gas OHV JAPANESE EMISSION(NA3),CALIF EMIS LEV(NC1),CALIF EMIS SYS(NC8),FED EMIS SYS(NF2)

2 Per Vehicle
Chevrolet Astro

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
JAPANESE EMISSION(NA3),TLEV CALIF EMIS(NB7),CALIF EMIS LEV(NC1),FED EMIS SYS(NF2)
1999-APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
 

Chevrolet Astro



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
JAPANESE EMISSION(NA3),TLEV CALIF EMIS(NB7),CALIF EMIS LEV(NC1),FED EMIS SYS(NF2)
1999-APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.

2 Per Vehicle
Chevrolet Blazer

4.3L V6 Gas OHV
2
 
 

Chevrolet Blazer



4.3L V6 Gas OHV
2 Per Vehicle
Chevrolet Blazer

4.3L V6 Gas OHV
2
 
Except LEADED FUEL COMPATIBLE(NM8)
 

Chevrolet Blazer



4.3L V6 Gas OHV Except LEADED FUEL COMPATIBLE(NM8)

2 Per Vehicle
Chevrolet Blazer

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL COMPATIBLE(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
 

Chevrolet Blazer



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL COMPATIBLE(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.

2 Per Vehicle
Chevrolet Blazer

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL EMIS(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
 

Chevrolet Blazer



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL EMIS(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.

2 Per Vehicle
Chevrolet Express 1500

4.3L V6 Gas OHV
2
 
Eng: LU3
8th VIN Digit: X
RWD
 

Chevrolet Express 1500



4.3L V6 Gas OHV Eng: LU3
8th VIN Digit: X
RWD

2 Per Vehicle
Chevrolet Express 1500

4.3L V6 Gas OHV
2
 
Eng: L35
8th VIN Digit: W
 

Chevrolet Express 1500



4.3L V6 Gas OHV Eng: L35
8th VIN Digit: W

2 Per Vehicle
Chevrolet Express 1500

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
EMIS SYS(UNDER 8500 LB GVW)(NA1)
1997-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKET ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
 

Chevrolet Express 1500



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
EMIS SYS(UNDER 8500 LB GVW)(NA1)
1997-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKET ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W

2 Per Vehicle
Chevrolet Express 2500

4.3L V6 Gas OHV
2
 
Eng: LU3
8th VIN Digit: X
RWD
 

Chevrolet Express 2500



4.3L V6 Gas OHV Eng: LU3
8th VIN Digit: X
RWD

2 Per Vehicle
Chevrolet Express 2500

4.3L V6 Gas OHV
2
 
Eng: L35
8th VIN Digit: W
Mfr Code: 4L60-E
 

Chevrolet Express 2500



4.3L V6 Gas OHV Eng: L35
8th VIN Digit: W
Mfr Code: 4L60-E

2 Per Vehicle
Chevrolet Express 2500

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
EMIS SYS(UNDER 8500 LB GVW)(NA1)
1997-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKET ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
 

Chevrolet Express 2500



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
EMIS SYS(UNDER 8500 LB GVW)(NA1)
1997-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKET ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W

2 Per Vehicle
Chevrolet S10

4.3L V6 Gas OHV
2
 
 

Chevrolet S10



4.3L V6 Gas OHV
2 Per Vehicle
Chevrolet S10

4.3L V6 Gas OHV
2
 
Eng: LU3
8th VIN Digit: X
Mfr Code: 4L60-E
 

Chevrolet S10



4.3L V6 Gas OHV Eng: LU3
8th VIN Digit: X
Mfr Code: 4L60-E

2 Per Vehicle
Chevrolet S10

4.3L V6 Gas OHV
2
 
Eng: LU3
8th VIN Digit: X
Mfr Code: NV3500/M50
 

Chevrolet S10



4.3L V6 Gas OHV Eng: LU3
8th VIN Digit: X
Mfr Code: NV3500/M50

2 Per Vehicle
Chevrolet S10

4.3L V6 Gas OHV
2
 
Except LEADED FUEL COMPATIBLE(NM8)
Eng: L35
8th VIN Digit: W
 

Chevrolet S10



4.3L V6 Gas OHV Except LEADED FUEL COMPATIBLE(NM8)
Eng: L35
8th VIN Digit: W

2 Per Vehicle
Chevrolet S10

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL COMPATIBLE(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
 

Chevrolet S10



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL COMPATIBLE(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W

2 Per Vehicle
Chevrolet S10

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL COMPATIBLE(NM8)
ELEC AIR INJECTION REACTOR(K18),EXTENDED BUILD FOR 1998 S/T TRUCK(ZN4)
1998-APPLICATIONS USE QTY-(6) 12555580 ROCKER ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
Mfr Code: 4L60-E
 

Chevrolet S10



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL COMPATIBLE(NM8)
ELEC AIR INJECTION REACTOR(K18),EXTENDED BUILD FOR 1998 S/T TRUCK(ZN4)
1998-APPLICATIONS USE QTY-(6) 12555580 ROCKER ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
Mfr Code: 4L60-E

2 Per Vehicle
Chevrolet S10

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL EMIS(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
 

Chevrolet S10



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL EMIS(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W

2 Per Vehicle
Chevrolet Silverado 1500

4.3L V6 Gas OHV
1
 
Eng: LU3
8th VIN Digit: X
Mfr Code: 4L60-E
 

Chevrolet Silverado 1500



4.3L V6 Gas OHV Eng: LU3
8th VIN Digit: X
Mfr Code: 4L60-E

1 Per Vehicle
Chevrolet Silverado 1500

4.3L V6 Gas OHV
2
 
Eng: LU3
8th VIN Digit: X
 

Chevrolet Silverado 1500



4.3L V6 Gas OHV Eng: LU3
8th VIN Digit: X

2 Per Vehicle
Chevrolet Silverado 1500

4.3L V6 Gas OHV
2
 
Eng: L35
8th VIN Digit: W
 

Chevrolet Silverado 1500



4.3L V6 Gas OHV Eng: L35
8th VIN Digit: W

2 Per Vehicle
Chevrolet Silverado 1500

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
W/STUDS)(1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
 

Chevrolet Silverado 1500



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
W/STUDS)(1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W

2 Per Vehicle
Chevrolet Silverado 1500 Classic

4.3L V6 Gas OHV
2
 
Eng: LU3
8th VIN Digit: X
 

Chevrolet Silverado 1500 Classic



4.3L V6 Gas OHV Eng: LU3
8th VIN Digit: X

2 Per Vehicle
GMC Jimmy

4.3L V6 Gas OHV
2
 
Except LEADED FUEL COMPATIBLE(NM8)
 

GMC Jimmy



4.3L V6 Gas OHV Except LEADED FUEL COMPATIBLE(NM8)

2 Per Vehicle
GMC Jimmy

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL COMPATIBLE(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
 

GMC Jimmy



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL COMPATIBLE(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.

2 Per Vehicle
GMC Jimmy

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL EMIS(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
 

GMC Jimmy



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL EMIS(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.

2 Per Vehicle
GMC Safari

4.3L V6 Gas OHV
2
 
 

GMC Safari



4.3L V6 Gas OHV
2 Per Vehicle
GMC Safari

4.3L V6 Gas OHV
2
 
JAPANESE EMISSION(NA3),CALIF EMIS LEV(NC1),CALIF EMIS SYS(NC8),FED EMIS SYS(NF2)
 

GMC Safari



4.3L V6 Gas OHV JAPANESE EMISSION(NA3),CALIF EMIS LEV(NC1),CALIF EMIS SYS(NC8),FED EMIS SYS(NF2)

2 Per Vehicle
GMC Safari

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
JAPANESE EMISSION(NA3),TLEV CALIF EMIS(NB7),CALIF EMIS LEV(NC1),FED EMIS SYS(NF2)
1999-APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
 

GMC Safari



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
JAPANESE EMISSION(NA3),TLEV CALIF EMIS(NB7),CALIF EMIS LEV(NC1),FED EMIS SYS(NF2)
1999-APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.

2 Per Vehicle
GMC Savana 1500

4.3L V6 Gas OHV
2
 
Eng: LU3
8th VIN Digit: X
RWD
 

GMC Savana 1500



4.3L V6 Gas OHV Eng: LU3
8th VIN Digit: X
RWD

2 Per Vehicle
GMC Savana 1500

4.3L V6 Gas OHV
2
 
Eng: L35
8th VIN Digit: W
 

GMC Savana 1500



4.3L V6 Gas OHV Eng: L35
8th VIN Digit: W

2 Per Vehicle
GMC Savana 1500

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
EMIS SYS(UNDER 8500 LB GVW)(NA1)
1997-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKET ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
 

GMC Savana 1500



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
EMIS SYS(UNDER 8500 LB GVW)(NA1)
1997-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKET ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W

2 Per Vehicle
GMC Savana 2500

4.3L V6 Gas OHV
2
 
Eng: LU3
8th VIN Digit: X
RWD
 

GMC Savana 2500



4.3L V6 Gas OHV Eng: LU3
8th VIN Digit: X
RWD

2 Per Vehicle
GMC Savana 2500

4.3L V6 Gas OHV
2
 
Eng: L35
8th VIN Digit: W
Mfr Code: 4L60-E
 

GMC Savana 2500



4.3L V6 Gas OHV Eng: L35
8th VIN Digit: W
Mfr Code: 4L60-E

2 Per Vehicle
GMC Savana 2500

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
EMIS SYS(UNDER 8500 LB GVW)(NA1)
1997-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKET ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
 

GMC Savana 2500



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
EMIS SYS(UNDER 8500 LB GVW)(NA1)
1997-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKET ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W

2 Per Vehicle
GMC Savana 3500

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
EMIS SYS(UNDER 8500 LB GVW)(NA1)
1997-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKET ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
 

GMC Savana 3500



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
EMIS SYS(UNDER 8500 LB GVW)(NA1)
1997-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKET ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W

2 Per Vehicle
GMC Sierra 1500

4.3L V6 Gas OHV
1
 
Eng: LU3
8th VIN Digit: X
Mfr Code: 4L60-E
 

GMC Sierra 1500



4.3L V6 Gas OHV Eng: LU3
8th VIN Digit: X
Mfr Code: 4L60-E

1 Per Vehicle
GMC Sierra 1500

4.3L V6 Gas OHV
2
 
Eng: LU3
8th VIN Digit: X
 

GMC Sierra 1500



4.3L V6 Gas OHV Eng: LU3
8th VIN Digit: X

2 Per Vehicle
GMC Sierra 1500

4.3L V6 Gas OHV
2
 
Eng: L35
8th VIN Digit: W
 

GMC Sierra 1500



4.3L V6 Gas OHV Eng: L35
8th VIN Digit: W

2 Per Vehicle
GMC Sierra 1500

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
W/STUDS)(1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
 

GMC Sierra 1500



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
W/STUDS)(1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W

2 Per Vehicle
GMC Sierra 1500 Classic

4.3L V6 Gas OHV
2
 
Eng: LU3
8th VIN Digit: X
 

GMC Sierra 1500 Classic



4.3L V6 Gas OHV Eng: LU3
8th VIN Digit: X

2 Per Vehicle
GMC Sonoma

4.3L V6 Gas OHV
2
 
 

GMC Sonoma



4.3L V6 Gas OHV
2 Per Vehicle
GMC Sonoma

4.3L V6 Gas OHV
2
 
Eng: LU3
8th VIN Digit: X
Mfr Code: 4L60-E
 

GMC Sonoma



4.3L V6 Gas OHV Eng: LU3
8th VIN Digit: X
Mfr Code: 4L60-E

2 Per Vehicle
GMC Sonoma

4.3L V6 Gas OHV
2
 
Eng: LU3
8th VIN Digit: X
Mfr Code: NV3500/M50
 

GMC Sonoma



4.3L V6 Gas OHV Eng: LU3
8th VIN Digit: X
Mfr Code: NV3500/M50

2 Per Vehicle
GMC Sonoma

4.3L V6 Gas OHV
2
 
Except LEADED FUEL COMPATIBLE(NM8)
Eng: L35
8th VIN Digit: W
 

GMC Sonoma



4.3L V6 Gas OHV Except LEADED FUEL COMPATIBLE(NM8)
Eng: L35
8th VIN Digit: W

2 Per Vehicle
GMC Sonoma

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL COMPATIBLE(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
 

GMC Sonoma



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL COMPATIBLE(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W

2 Per Vehicle
GMC Sonoma

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL COMPATIBLE(NM8)
ELEC AIR INJECTION REACTOR(K18),EXTENDED BUILD FOR 1998 S/T TRUCK(ZN4)
1998-APPLICATIONS USE QTY-(6) 12555580 ROCKER ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
Mfr Code: 4L60-E
 

GMC Sonoma



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL COMPATIBLE(NM8)
ELEC AIR INJECTION REACTOR(K18),EXTENDED BUILD FOR 1998 S/T TRUCK(ZN4)
1998-APPLICATIONS USE QTY-(6) 12555580 ROCKER ARM AND QTY-(1) 12555582 SUPPORT/PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
Mfr Code: 4L60-E

2 Per Vehicle
GMC Sonoma

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL EMIS(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W
 

GMC Sonoma



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL EMIS(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
Eng: L35
8th VIN Digit: W

2 Per Vehicle
Oldsmobile Bravada

4.3L V6 Gas OHV
2
 
 

Oldsmobile Bravada



4.3L V6 Gas OHV
2 Per Vehicle
Oldsmobile Bravada

4.3L V6 Gas OHV
2
 
Except LEADED FUEL COMPATIBLE(NM8)
 

Oldsmobile Bravada



4.3L V6 Gas OHV Except LEADED FUEL COMPATIBLE(NM8)

2 Per Vehicle
Oldsmobile Bravada

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL COMPATIBLE(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
 

Oldsmobile Bravada



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL COMPATIBLE(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.

2 Per Vehicle
Oldsmobile Bravada

4.3L V6 Gas OHV
2
 
WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL EMIS(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.
 

Oldsmobile Bravada



4.3L V6 Gas OHV WHEN USING 12555630-IN PLACE OF 12533558
Except LEADED FUEL EMIS(NM8)
1996-1999 APPLICATIONS USE QTY-(6) 12555580 ROCKER ARMS AND QTY-(1) 12555582 SUPPORT ROCKER ARM PER CYL/HEAD.TORQUE PER 2000 SERVICE MANUAL.

2 Per Vehicle