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ACDelco 12478093 Transfer Case Output Shaft Seal

ACDelco 12478093 Transfer Case Output Shaft Seal


Brand:	ACDelco
Part Number:	12478093
UPC:	195491147157
Weight:	0.15 lbs
Condition:	New

On Sale:

$88.90

Availability:

6 in Stock

Warehouse:

US-12

Quantity:

Product Information

Description:

Get the ACDelco 12478093 Transfer Case Output Shaft Seal for your vehicle. Buy now and secure your purchase online!

GM Genuine Parts Transfer Case Output Shaft Seals 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:

Inside Diameter:

2.11 in.

Inside Diameter:

53.8 mm

Outside Diameter:

3.55 in.

Outside Diameter:

90.20 mm

Programming Required:

Rim Shape:

Round

Seal Housing Material:

Steel

Seal Type:

Seal

Sealing Material:

Rubber

Thickness:

1.39 in.

Thickness:

35.40 mm

Universal Or Specific Fit:

Specific

Country of Origin:

Select a vehicle to narrow ACDelco 12478093 Transfer Case Output Shaft Seal fitment info!

Last Updated: 05/30/2024

Years

Vehicle

Per Vehicle

Position

Fit Notes

Fitment Notes

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

2002

Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

2002

Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle

2002

Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

2007

Chevrolet Silverado 2500 HD Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

Chevrolet Silverado 2500 HD Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle

2007

Chevrolet Silverado 2500 HD Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

Chevrolet Silverado 2500 HD Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle

Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle

Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle

Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle

Chevrolet Silverado 3500

6.0L V8 CNG OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

Chevrolet Silverado 3500

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle

Chevrolet Silverado 3500

6.0L V8 CNG OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

Chevrolet Silverado 3500

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle

Chevrolet Silverado 3500

6.0L V8 CNG OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

Chevrolet Silverado 3500

6.0L V8 CNG OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle

Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle

Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

2007

Chevrolet Silverado 3500 Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

Chevrolet Silverado 3500 Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle

2007

Chevrolet Silverado 3500 Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

Chevrolet Silverado 3500 Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle

GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle

GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle

GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle

GMC Sierra 2500 HD

6.0L V8 CNG OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

GMC Sierra 2500 HD

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle

GMC Sierra 2500 HD

6.0L V8 CNG OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

GMC Sierra 2500 HD

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle

GMC Sierra 2500 HD

6.0L V8 CNG OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

GMC Sierra 2500 HD

6.0L V8 CNG OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle

GMC Sierra 2500 HD

6.0L V8 CNG OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

GMC Sierra 2500 HD

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

GMC Sierra 2500 HD

6.0L V8 CNG OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

GMC Sierra 2500 HD

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle

GMC Sierra 2500 HD

6.0L V8 CNG OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

GMC Sierra 2500 HD

6.0L V8 CNG OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle

GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

2002

GMC Sierra 2500 HD

6.0L V8 Bi-Fuel OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

GMC Sierra 2500 HD

6.0L V8 Bi-Fuel OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

2002

GMC Sierra 2500 HD

6.0L V8 Bi-Fuel OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

GMC Sierra 2500 HD

6.0L V8 Bi-Fuel OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle

2002

GMC Sierra 2500 HD

6.0L V8 Bi-Fuel OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

GMC Sierra 2500 HD

6.0L V8 Bi-Fuel OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

2007

GMC Sierra 2500 HD Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

GMC Sierra 2500 HD Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle

2007

GMC Sierra 2500 HD Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

GMC Sierra 2500 HD Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle

GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle

GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle

GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle

GMC Sierra 3500

6.0L V8 CNG OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

GMC Sierra 3500

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle

GMC Sierra 3500

6.0L V8 CNG OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

GMC Sierra 3500

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle

GMC Sierra 3500

6.0L V8 CNG OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

GMC Sierra 3500

6.0L V8 CNG OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle

GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle

GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

2007

GMC Sierra 3500 Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

GMC Sierra 3500 Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle

2007

GMC Sierra 3500 Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

1 Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

GMC Sierra 3500 Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle

ACDelco 12478093 Transfer Case Output Shaft Seal

$88.90

Product Information

Description:

Features and Benefits:

Specifications:

Select a vehicle to narrow ACDelco 12478093 Transfer Case Output Shaft Seal fitment info!

Chevrolet Silverado 2500 HD 6.0L V8 Gas OHV,6.6L V8 Diesel OHV Turbo,8.1L V8 Gas OHV

1

Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: 10004WD

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,6.6L V8 Diesel OHV Turbo,8.1L V8 Gas OHV Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: 10004WD 1 Per Vehicle

Chevrolet Silverado 2500 HD 6.0L V8 Gas OHV,6.6L V8 Diesel OHV Turbo,8.1L V8 Gas OHV

1

Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: S6-6504WD

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,6.6L V8 Diesel OHV Turbo,8.1L V8 Gas OHV Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: S6-6504WD 1 Per Vehicle

Chevrolet Silverado 2500 HD 6.0L V8 Gas OHV,6.6L V8 Diesel OHV Turbo,8.1L V8 Gas OHV

1

Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)Mfr Code: 10004WD

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,6.6L V8 Diesel OHV Turbo,8.1L V8 Gas OHV Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)Mfr Code: 10004WD 1 Per Vehicle

Chevrolet Silverado 2500 HD 6.0L V8 CNG OHV

1

Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: 10004WD

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: 10004WD 1 Per Vehicle

Chevrolet Silverado 2500 HD 6.0L V8 CNG OHV

1

Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: S6-6504WD

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: S6-6504WD 1 Per Vehicle

Chevrolet Silverado 2500 HD 6.0L V8 CNG OHV

1

Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)Mfr Code: 10004WD

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)Mfr Code: 10004WD 1 Per Vehicle

Chevrolet Silverado 2500 HD 6.0L V8 CNG OHV

1

Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: 1000/M744WD

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: 1000/M744WD 1 Per Vehicle

Chevrolet Silverado 2500 HD 6.0L V8 CNG OHV

1

Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: S6-650/ML64WD

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: S6-650/ML64WD 1 Per Vehicle

Chevrolet Silverado 2500 HD 6.0L V8 CNG OHV

1

Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)Mfr Code: 1000/M744WD

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)Mfr Code: 1000/M744WD 1 Per Vehicle

Chevrolet Silverado 2500 HD 6.0L V8 Gas OHV,6.6L V8 Diesel OHV Turbo,8.1L V8 Gas OHV

1

Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: 1000/M744WD

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,6.6L V8 Diesel OHV Turbo,8.1L V8 Gas OHV Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: 1000/M744WD 1 Per Vehicle

Chevrolet Silverado 2500 HD 6.0L V8 Gas OHV,6.6L V8 Diesel OHV Turbo,8.1L V8 Gas OHV

1

Rear

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: S6-650/ML64WD

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,6.6L V8 Diesel OHV Turbo,8.1L V8 Gas OHV Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)Mfr Code: S6-650/ML64WD 1 Per Vehicle

Chevrolet Silverado 2500 HD 6.0L V8 Gas OHV,6.6L V8 Diesel OHV Turbo,8.1L V8 Gas OHV

1

Rear

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)Mfr Code: 1000/M744WD

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,6.6L V8 Diesel OHV Turbo,8.1L V8 Gas OHV Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)Mfr Code: 1000/M744WD 1 Per Vehicle

Chevrolet Silverado 2500 HD 6.0L V8 Bi-Fuel OHV

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

6.0L V8 CNG OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

6.0L V8 CNG OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV

2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

6.0L V8 Bi-Fuel OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle