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2012 Chevrolet Express 1500 2WD
-- Select Engine --
Engine Description RPO Code
The drop down menu includes engine codes with descriptions and engine sizes. Please use the following tutorial to locate the actual engine size of your vehicle; it could help you make the correct selection.
  • 6 Cyl 4.3L MFI, 90 DEG LU3
  • 8 Cyl 4.8L Flexible Fuel L20
  • 8 Cyl 5.3L SFI, OHV, Iron LMF
  • 8 Cyl 6.0L Flexible Fuel, SFI Iron L96
  • 8 Cyl 6.0L LPG/CNG, SFI, GEN 1 LC8
  • 8 Cyl 6.6L Diesel Turbo, DI, DURAMAX LGH
-- Select Transmission --
Transmission Description RPO Code
  • 4-Speed Automatic Transmission, 4L60-E, Electronic M30
  • 6-Speed Automatic Transmission, HMD, 6L-90 MYD
-- Select Model Code --
Model Code Description RPO Code
A GM Model Code can be found on both the Service Tag and Service Parts Identification Tag.
  • Van 1/2 Ton Cargo Express CG13405
  • Van 1/2 Ton Passenger Express CG13406
  • Van 3/4 Ton Cargo Express CG23405
  • Van 3/4 Ton Cargo Express CG23705
  • Van 3/4 Ton Passenger Express CG23406
  • Van 1 Ton Cargo Express CG33405
  • Van 1 Ton Cargo Express CG33705
  • Van 1 Ton Commercial/RV Express CG33503
  • Van 1 Ton Commercial/RV Express CG33803
  • Van 1 Ton Commercial/RV Express CG33903
  • Van 1 Ton Passenger Express CG33406
  • Van 1 Ton Passenger Express CG33706
Parts Question Guide

Parts found for 2012 Chevrolet Express 1500 2WD > Starter, Generator, Ignition, Electrical, Lamps > Wiring Harness/Engine Compartment

Part No. Part Description Retail
BOLT, Chassis/Engine Wiring Harness


Require Quantity:
HARNESS, Engine Wiring Make Sure These Fit


Fitting Vehicle Options:


Fitting Vehicle Options:
G2,3(05-06)(LGH,C42,KG3,K68), G2,3(05-06)(LGH,KD9)


Fitting Vehicle Options:
G2,3(03)(LGH,C42,KG3,K68), G2,3(03)(LGH,KD9)


Fitting Vehicle Options:


Fitting Vehicle Options:
Replaced by:


Fitting Vehicle Options:


Fitting Vehicle Options:


Fitting Vehicle Options:
Standard Parts





Although General Motors no longer manufactures this part, we may still have stock or the ability to special order it.

To verify availability, please contact us. We will respond promptly.

There are multiple parts that fit your vehicle, select the one that best matches your needs, or select vehicle options to filter result.
Genuine GM Parts, the Right Choice offers the lowest prices for genuine 2012 Chevrolet Express 1500 2WD parts. Parts like Wiring Harness/Engine Compartment are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 4.3L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel. Model Code: 1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RECREATIONAL VEHICLE EXPRESS, 1 TON PASSENGER, 1/2 TON CARGO EXPRESS, 1/2 TON PASSENGER EXPRESS, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS.
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This part is a packaged part and contains multiple quantities of the same item. In an effort to simplify packaging GM will sometimes include multiple parts in a package.