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Wiring Harness/Chassis fit your 2003 GMC Sierra 2500 4WD

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2003 GMC Sierra 2500 4WD
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Starter, Generator, Ignition, Electrical, Lamps

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Body Mounting, Air Conditioning, Audio/Entertainment
Brakes
Brakes, Rear Axle, Propeller Shaft, Wheels, Tires
Cab And Body Structure, Mirrors, Doors, Trim, Seat Belts, Wipers
Cooling System, Grille, Oil System
Engine
Frames, Springs, Shocks, Bumpers
Front Axle, Front Suspension, Steering
Front End Sheet Metal, Heater
Fuel System, Exhaust, Emission System
Maintenance Parts, Fluids, Capacities, Electrical Connectors
Rear Body Structure, Moldings & Trim, Cargo Stowage
Transfer Case
Transmission - Automatic
Transmission - Manual
Categories Close X

Currently selected

Starter, Generator, Ignition, Electrical, Lamps

Other Categories

Body Mounting, Air Conditioning, Audio/Entertainment
Brakes
Brakes, Rear Axle, Propeller Shaft, Wheels, Tires
Cab And Body Structure, Mirrors, Doors, Trim, Seat Belts, Wipers
Cooling System, Grille, Oil System
Engine
Frames, Springs, Shocks, Bumpers
Front Axle, Front Suspension, Steering
Front End Sheet Metal, Heater
Fuel System, Exhaust, Emission System
Maintenance Parts, Fluids, Capacities, Electrical Connectors
Rear Body Structure, Moldings & Trim, Cargo Stowage
Transfer Case
Transmission - Automatic
Transmission - Manual
Parts Questions
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Recommended
Part No. & Part Description
Price & Qty.
Part No. &
Part Description
  • HARNESS, Chassis Wiring
    GMC 15181669
    15181669
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK257(53)(LQ4,L18,HVY)(EXC EVA,5X7,5Y0,8S3)
  • GMC 15181670
    15181670
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK257(43)(LQ4,L18)(EXC EVA,5X7,5Y0,8S3), CK257(43)(LQ4,L18,EVA)(EXC 5X7,5Y0,8S3)
  • GMC 15181671
    15181671
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259,359(03)(LQ4,L18,HVY)(EXC EVA,5X7,5Y0,8S3), CK259,359(03)(LQ4,L18,EVA,HVY)(EXC KL6,KL8,5X7,5Y0,8S3)
  • GMC 15181672
    15181672
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259,359(53)(LQ4,L18)(EXC EVA,5X7,5Y0,8S3), CK259,359(53)(LQ4,L18,EVA)(EXC KL6,KL8,5X7,5Y0,8S3)
  • GMC 15181673
    15181673
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259,359(43)(LQ4,L18,EVA)(EXC KL6,5X7,5Y0,8S3), CK259,359(43)(LQ4,L18)(EXC EVA,5X7,5Y0,8S3)
  • GMC 15181682
    15181682
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK257(53)(LB7)
  • GMC 15181683
    15181683
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK257(43)(LB7)
  • GMC 15181684
    15181684
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259,359(03)(LB7)
  • GMC 15181685
    15181685
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259,359(53)(LB7)
  • GMC 15181686
    15181686
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259,359(43)(LB7)
  • GMC 15181729
    15181729
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: K257(53)(LQ4,EVA)(EXC HVY,5X7,5Y0,8S3)
  • GMC 15181741
    15181741
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK257(53)(LQ4)(EXC EVA,HVY,5X7,5Y0,8S3)
  • GMC 15181759
    15181759
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259(03)(HVY,KL6,KL8)
  • GMC 15181938
    15181938
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK257(53)(LQ4,L18,HVY,5Y0)(EXC EVA,5X7,8S3), CK257(53)(LQ4,L18,HVY,5X7)(EXC EVA,8S3), CK257(53)(LQ4,L18,HVY,8S3)(EXC EVA), CK257(53)(LQ4,L18,EVA,HVY,5Y0)(EXC 5X7,8S3), CK257(53)(LQ4,L18,EVA,HVY,5X7)(EXC 8S3), CK257(53)(LQ4,L18,EVA,HVY,8S3)
  • GMC 15181939
    15181939
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK257(43)(LQ4,L18,8S3)(EXC EVA), CK257(43)(LQ4,L18,EVA,5X7)(EXC 8S3), CK257(43)(LQ4,L18,EVA,5Y0)(EXC 5X7,8S3), CK257(43)(LQ4,L18,5X7)(EXC EVA,8S3), CK257(43)(LQ4,L18,5Y0)(EXC EVA,5X7,8S3), CK257(43)(LQ4,L18,EVA,8S3)
  • GMC 15181940
    15181940
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259,359(03)(LQ4,L18,EVA,HVY,5Y0)(EXC KL6,KL8,5X7,8S3), CK259,359(03)(LQ4,L18,HVY,5X7)(EXC EVA,8S3), CK259,359(03)(LQ4,L18,HVY,5Y0)(EXC EVA,5X7,8S3), CK259,359(03)(LQ4,L18,EVA,HVY,5X7)(EXC KL6,KL8,8S3), CK259,359(03)(LQ4,L18,EVA,HVY,8S3)(EXC KL6,KL8), CK259,359(03)(LQ4,L18,HVY,8S3)(EXC EVA)
  • GMC 15181941
    15181941
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259,359(53)(LQ4,L18,EVA,5Y0)(EXC KL6,KL8,5X7,8S3), CK259,359(53)(LQ4,L18,5X7)(EXC EVA,8S3), CK259,359(53)(LQ4,L18,5Y0)(EXC EVA,5X7,8S3), CK259,359(53)(LQ4,L18,EVA,8S3)(EXC KL6,KL8), CK259,359(53)(LQ4,L18,8S3)(EXC EVA), CK259,359(53)(LQ4,L18,EVA,5X7)(EXC KL6,KL8,8S3)
  • GMC 15181942
    15181942
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259,359(43)(LQ4,L18,8S3)(EXC EVA), CK259,359(43)(LQ4,L18,5X7)(EXC EVA,8S3), CK259,359(43)(LQ4,L18,EVA,5X7)(EXC KL6,8S3), CK259,359(43)(LQ4,L18,5Y0)(EXC EVA,5X7,8S3), CK259,359(43)(LQ4,L18,EVA,5Y0)(EXC KL6,5X7,8S3), CK259,359(43)(LQ4,L18,EVA,8S3)(EXC KL6)
  • GMC 15181962
    15181962
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259(03)(LQ4,5Y0)(EXC EVA,HVY,5X7,8S3), CK259(03)(LQ4,EVA,8S3)(EXC HVY,KL6,KL8), CK259(03)(LQ4,8S3)(EXC EVA,HVY), CK259(03)(LQ4,5X7)(EXC EVA,HVY,8S3), CK259(03)(LQ4,EVA,5X7)(EXC HVY,KL6,KL8,8S3), CK259(03)(LQ4,EVA,5Y0)(EXC HVY,KL6,KL8,5X7,8S3)
  • GMC 15181964
    15181964
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: K257(53)(LQ4,8S3)(EXC EVA,HVY), K257(53)(LQ4,EVA,5Y0)(EXC HVY,5X7,8S3), K257(53)(LQ4,5Y0)(EXC EVA,HVY,5X7,8S3), K257(53)(LQ4,EVA,8S3)(EXC HVY), K257(53)(LQ4,5X7)(EXC EVA,HVY,8S3), K257(53)(LQ4,EVA,5X7)(EXC HVY,8S3)
  • GMC 15195579
    15195579
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259(03)(LQ4)(EXC EVA,FW1,HVY,5X7,5Y0,8S3), CK259(03)(LQ4,EVA)(EXC HVY,KL6,KL8,5X7,5Y0,8S3)
  • GMC 15195581
    15195581
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259(53)(KL6,KL8)
  • GMC 15195582
    15195582
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259(43)(KL6)
  • GMC 15195583
    15195583
    HARNESS, CHASSIS WIRING
    • Fitting Vehicle Options: CK259(03)(KL6,KL8)(EXC HVY)
Genuine GM Parts, the Right Choice
GMPartsGiant.com offers the wholesale prices for genuine 2003 GMC Sierra 2500 4WD parts. Parts like Wiring Harness/Chassis are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 8 Cyl 6.0L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L. Model Code: 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB.