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Parts found for 2003 Chevrolet Express 3500 > Starter, Generator, Ignition, Electrical, Lamps > Wiring Harness/Engine

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  •  
    BOLT, Chassis/Engine Wiring Harness Make Sure These Fit  
  • Chevrolet 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
    $7.75
    $4.95
  • Chevrolet 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
    $5.63
    $3.58
  •  
    HARNESS, Engine Wiring Make Sure These Fit  
  • Chevrolet 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)
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  • Chevrolet 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)
    $1721.65
    $1099.10
  • Chevrolet 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)
    $1461.17
    $932.80
  • Chevrolet 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)
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  • Chevrolet 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)
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  •  
    SENSOR, Computer Control Sensors Make Sure These Fit  
  • Chevrolet 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)
    $91.28
    $49.29
  • Chevrolet 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)
    $120.97
    $65.33
  • Chevrolet 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)
    $91.28
    $49.29
  • Chevrolet 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)
    $120.97
    $65.33
  •  
    Standard Parts Make Sure These Fit  
  • Chevrolet 11517070
    BOLT, HEAVY HEX FLANGED HEAD, M10X1.5X20(ENGINE WIRING HARNESS GROUND)
    $4.52
    $2.87
  • Chevrolet 11561674
    BOLT, HEXAGON W/FLAT WASHER,M6X1X20,12 THREAD,24 OUTSIDE DIAMETER,9.8,GMW3359, M-POINT(ENGINE WIRING HARNESS BRACKET)
    $3.61
    $2.31
  • Chevrolet 11516703
    BOLT, HEXAGON,M4.8X1.6X13,20 OUTSIDE DIAMETER,6010M MAT, 6047M FINISH(ENGINE WIRING HARNESS CLIP)(8.977)
    $4.77
    $3.05
  • Chevrolet 11515755
    BOLT, HEXAGON,M8X1.25X16,15 THREAD,18 O.D.,10.9,7114M(ENGINE WIRING HARNESS GROUND)(TOGETHER WITH 12345493 REPLCS 25534835)
    $5.88
    $3.75
  • Chevrolet 12015631
    CLIP, (6.35 MM INSIDE DIAMETER)(PART OF 1)
    $4.66
    $2.96
  • Chevrolet 11609411
    NUT, HEXAGON W/CONICAL WASHER,M6X1,5.7 THICK,16 OUTSIDE DIAMETER,9,GMW3200(ENGINE WIRING HARNESS EXTENSION HARNESS RELAY LEAD)
    $0.57
    $0.37
  • Chevrolet 11514602
    NUT, HEXAGON,M8X1.25,6.8THK,13 O.D.,10,PHOSPHATE ZINC ORGANIC - FLAKE(ENGINE WIRING HARNESS)
    $1.04
    $0.66
  • Chevrolet 11514602
    NUT, HEXAGON,M8X1.25,6.8THK,13 O.D.,10,PHOSPHATE ZINC ORGANIC - FLAKE(ENGINE WIRING HARNESS)
    $1.04
    $0.66
  • Chevrolet 11561394
    NUT, HEXLOCK,M5X.8,5.4THK,9 STEEL,GMW3044,W/EXTERNAL TOOTH LOCK WASHER(ENGINE WIRING HARNESS START MOTOR LEAD)
    $10.55
    $6.73
  • Chevrolet 11515211
    SCREW, HEXAGON WASHER HEAD,TAP,M8X1.25X20,17.2 O.D.,6174M,PC(ENGINE WIRING HARNESS CLIP)
    $4.14
    $2.64
  • Chevrolet 19130464
    STRAP, TIE 0.38" WIDTH,BUNDLE DIAMETER 1/16"-1-3/4", 8.27" LENGTH,NYLON 6/6 FITS 0.(PART OF 1)
    $1.19
    $0.76
Genuine GM Parts, the Right Choice
GMPartsGiant.com offers the lowest 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: 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 6.0L. Model Code: 1 TON CARGO EXPRESS, 1 TON PASSENGER.
 
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This part contains hazardous material.

This part is a packaged part and contains multiple quantities of: (Pack Qty: 4)

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.