Wiring Harness/Engine fit your 2003 Chevrolet Express 3500

Currently shopping for
2003 Chevrolet Express 3500
Change Vehicle
Categories Close X

Currently selected

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
Transmission
Categories Close X

Currently selected

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
Transmission
Sort by:
Recommended
Part No. & Part Description
Price & Qty.
Part No. &
Part Description
  • SENSOR, Computer Control Sensors
    19209808
    SENSOR, HEATED OXYGEN(POSITION 3)(POST CONVERTER)(MATES W/CONNECT 15306319 W/LEADS, 4-WAY)(USED ON VEHICLES W/RIGHT HAND O2 SENSOR MARKED 25333812)(FOR 2ND DESIGN SEE 19209805)
    • Location: Driver Side
    • Fitting Vehicle Options: G1,2,3(LM7,LQ4,LR4,LU3)(1ST DES)
    $105.76 $50.94
    1
    Add To Cart
  • 19209808
    SENSOR, HEATED OXYGEN(POSITION 2)(PRE CONVERTER)(MATES W/CONNECT 15306319 W/LEADS, 4-WAY)
    • Location: Driver Side
    • Fitting Vehicle Options: G1,2,3(LM7,LQ4,LR4,LU3)
    $105.76 $50.94
    1
    Add To Cart
  • Chevrolet 19209805
    19209805
    SENSOR, HEATED OXYGEN(POSITION 3)(POST CONVERTER)(USED ON VEHICLES W/RIGHT HAND O2 SENSOR MARKED 19209805)(FOR 1ST DESIGN SEE 19209808)
    • Location: Passenger Side
    • Fitting Vehicle Options: G1,2,3(LM7,LQ4,LR4,LU3)(2ND DES)
    $165.74 $79.82
    1
    Add To Cart
  • Chevrolet 19209805
    19209805
    SENSOR, HEATED OXYGEN(POSITION 2)(PRE CONVERTER)(USED ON VEHICLES W/RIGHT HAND O2 SENSOR MARKED 19209805)(FOR 1ST DESIGN SEE 25333812)
    • Location: Passenger Side
    • Fitting Vehicle Options: G1,2,3(LM7,LQ4,LR4,LU3)(2ND DES)
    $165.74 $79.82
    1
    Add To Cart
  • 19130464
    STRAP, Fuse, STRAP,TIE 0.38" WIDTH,BUNDLE DIAMETER 1/16"-1-3/4", 8.27" LENGTH,NYLON 6/6 FITS 0.(PART OF 1)
    $13.05
    1
    Add To Cart
  • BOLT, Chassis/Engine Wiring Harness
    11609829
    BOLT, ENGINE WIRING HARNESS(M4.2X2.25X16)(9.786)
    • Fitting Vehicle Options: GH1,2,3, G1,2,3
    • Require Quantity: 02
    • Package Quantity: 1
    $7.39 $4.69
    1
    Add To Cart
  • 11610073
    BOLT, ENGINE WIRING HARNESS CLIP(M8X1.25X16,12.45THD)(13MM SOCKET)(8.900)
    • Fitting Vehicle Options: G1,2,3
    • Require Quantity: 03
    • Package Quantity: 1
    $9.51 $6.04
    1
    Add To Cart
  • HARNESS, Engine Wiring
    Chevrolet 15134522
    15134522
    HARNESS, ENGINE WIRING(BLACK RH OXYGEN SENSOR CONNECT)(INCLUDES 3,7,8,10,13,17,18,21-24,26,27)(HAS A 14-WAY MALE INLINE TO INSTRUMENT PANEL CONNECT; 1ST DESIGN SEE PART # 25752021)(TOGETHER WITH 24221125)
    • Fitting Vehicle Options: G2,3(LQ4,C42,C60,NC8,NF4,NF9,NT9)(EXC KL6,KL8)(2ND DES), G2,3(LR4,C42,C60)(2ND DES)
  • Chevrolet 25752019
    25752019
    HARNESS, ENGINE WIRING(INCLUDES 3,7,8,10,13,17,18,21-24,26,27)(HAS A 24-WAY F INLINE TO INSTRUMENT PANEL CONNECT; 2ND DESIGN SEE POINT # 25755970)
    • Fitting Vehicle Options: G2,3(LQ4,C42,C60,NC1)(EXC KL6,KL8)(1ST DES)
  • Chevrolet 25752021
    25752021
    HARNESS, ENGINE WIRING(INCLUDES 3,7,8,10,13,17,18,21-24,26,27)(HAS A 24-WAY FEMALE INLINE TO INSTRUMENT PANEL CONNECT; 2ND DESIGN SEE PART #15134522)
    • Fitting Vehicle Options: G2,3(LR4,C42,C60)(1ST DES), G2,3(LQ4,C42,C60,NC8,NF4,NF9,NT9)(EXC KL6,KL8)(1ST DES)
  • Chevrolet 25752023
    25752023
    HARNESS, ENGINE WIRING(INCLUDES 3,7,8,10,13,17,18,21-24,26,27)(HAS A 24-WAY FEMALE INLINE TO INSTRUMENT PANEL CONNECT; 2ND DESIGN SEE POINT # 25760973)
    • Fitting Vehicle Options: G2,3(LQ4,C42,C60,KL6,KL8)(1ST DES)
  • Chevrolet 25755970
    25755970
    HARNESS, ENGINE WIRING(GRAY RH OXYGEN SENSOR CONNECT)(INCLUDES 3,7,8,10,13,17,18,21-24,26,27)(TORQUE: PCM CONNECTOR)(HAS A 14-WAY MALE INLINE TO INSTRUMENT PANEL CONNECT; 1ST DESIGN SEE POINT # 25752019)
    • Fitting Vehicle Options: G2,3(LQ4,C42,C60,NC1)(EXC KL6,KL8)(2ND DES)
  • 11515755
    BOLT, HEXAGON,M8X1.25X16,15 THREAD,18 O.D.,10.9,7114M(ENGINE WIRING HARNESS GROUND)(TOGETHER WITH 12345493 REPLCS 25534835)
    $13.05
    1
    Add To Cart
  • 11609411
    NUT, HEXAGON W/CONICAL WASHER,M6X1,5.7 THICK,16 OUTSIDE DIAMETER,9,GMW3200(ENGINE WIRING HARNESS EXTENSION HARNESS RELAY LEAD)
    $2.38 $1.51
    10
    Add To Cart
  • 11561674
    BOLT, HEXAGON W/FLAT WASHER,M6X1X20,12 THREAD,24 OUTSIDE DIAMETER,9.8,GMW3359, M-POINT(ENGINE WIRING HARNESS BRACKET)
    $13.98 $8.88
    10
    Add To Cart
  • 11514602
    NUT, HEXAGON,M8X1.25,6.8THK,13 O.D.,10,PHOSPHATE ZINC ORGANIC - FLAKE(ENGINE WIRING HARNESS)
    • Require Quantity: 02
    • Package Quantity: 10
    $2.37 $1.51
    10
    Add To Cart
  • 11514602
    NUT, HEXAGON,M8X1.25,6.8THK,13 O.D.,10,PHOSPHATE ZINC ORGANIC - FLAKE(ENGINE WIRING HARNESS)
    $2.37 $1.51
    10
    Add To Cart
  • 11516703
    BOLT, HEXAGON,M4.8X1.6X13,20 OUTSIDE DIAMETER,6010M MAT, 6047M FINISH(ENGINE WIRING HARNESS CLIP)(8.977)
    $5.90 $3.75
    1
    Add To Cart
  • Chevrolet 11517070
    11517070
    BOLT, HEAVY HEX FLANGED HEAD, M10X1.5X20(ENGINE WIRING HARNESS GROUND)
    $5.62 $3.55
    1
    Add To Cart
  • Chevrolet 12015631
    12015631
    CLIP, (6.35 MM INSIDE DIAMETER)(PART OF 1)
    $7.24 $4.57
    1
    Add To Cart
  • Chevrolet 11515211
    11515211
    SCREW, HEXAGON WASHER HEAD,TAP,M8X1.25X20,17.2 O.D.,6174M,PC(ENGINE WIRING HARNESS CLIP)
Genuine GM Parts, the Right Choice
GMPartsGiant.com offers the wholesale prices for genuine 2003 Chevrolet Express 3500 parts. Parts like Wiring Harness/Engine are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 8 Cyl 4.8L, 8 Cyl 6.0L. Model Code: 1 TON CARGO EXPRESS, 1 TON PASSENGER.