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Parts found for 2003 Chevrolet Express 2500 2WD > Starter, Generator, Ignition, Electrical, Lamps > Wiring Harness/Engine

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  •  
    BOLT, Chassis/Engine Wiring Harness Make Sure These Fit  
  • BOLT, ENGINE WIRING HARNESS CLIP(M8X1.25X16,12.45THD)(13MM SOCKET)(8.900)
    Fitting Vehicle Options: G1,2,3
    Require Qty: 03
    Package Qty: 1
    $7.75
    $4.95
  • BOLT, ENGINE WIRING HARNESS(M4.2X2.25X16)(9.786)
    Fitting Vehicle Options: G1,2,3, GH1,2,3
    Require Qty: 02
    Package Qty: 1
    $5.63
    $3.58
  •  
    CLIP, Chassis/Engine Wiring Harness Make Sure These Fit  
  • CLIP, ENGINE WIRING HARNESS(OPEN LOOP 10.1 DIAMETER 24.0 CENTER)(PART OF 1)(6.672)
    Fitting Vehicle Options: GH1,2(LM7)
    Require Qty: 02
    Package Qty: 1
    $4.25
    $2.71
  • CLIP, ENGINE WIRING HARNESS(PART OF 1)
    Fitting Vehicle Options: G1,2(LU3,C42)
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    --
  • CLIP, ENGINE WIRING HARNESS(PART OF 1)(16MM)(2.343)
    Fitting Vehicle Options: G1,2(LU3)
    $6.86
    $4.38
  • CLIP, ENGINE WIRING HARNESS(PART OF 1)(30MM CONDUIT)(9.780)
    Fitting Vehicle Options: G1,2,3(LM7,LQ4,LR4)
    $8.21
    $5.24
  • CLIP, ENGINE WIRING HARNESS(PART OF 1)(PUSH-IN TREE TYPE FOR 6MM CONVERTER CONDUIT)(8.965)
    Fitting Vehicle Options: G1,2(LM7), G1,2(LU3,LM7)
    Require Qty: 02
    Package Qty: 1
    $5.65
    $3.61
  • CLIP, ENGINE WIRING HARNESS(PART OF 1)(RETAINS 10MM CONDUIT AND HAS ANODIZED 8MM DIAMETER HOLE FOR MOUNTING)(2.343)
    Fitting Vehicle Options: GH1,2(LM7)
    $4.86
    $3.10
  • CLIP, ENGINE WIRING HARNESS(PART OF 1)(TREE RETAINER FOR 16MM DIAMETER CONDUIT)(2.343)
    Fitting Vehicle Options: GH1,2(LM7)
    $7.29
    $4.65
  •  
    HARNESS, Engine Wiring Make Sure These Fit  
  • 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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    --
  • 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 POINT #25752015 TOGETHER WITH 24221125 REPLACES 25760965)
    Fitting Vehicle Options: G1,2(LM7,C42,C60)(2ND DES)
    $1328.24
    $847.95
  • HARNESS, ENGINE WIRING(BLACK RH OXYGEN SENSOR CONNECT)(INCLUDES 3,7,8,10,13,17,18,21-24,26,27)(MAY REQUIRE 15306319 CONNECT AT RH OXYGEN SENSOR CONNECT)(HAS A 14-WAY MALE INLINE TO INSTRUMENT PANEL CONNECT; 1ST DESIGN SEE POINT # 25752023)
    Fitting Vehicle Options: G2,3(LQ4,C42,C60,KL6,KL8)(2ND DES)
    $1203.53
    $768.33
  • HARNESS, ENGINE WIRING(GRAY RH OXYGEN SENSOR CONNECT)(INCLUDES 2,9,10,13,16)(HAS A 14-WAY MALE INLINE TO INSTRUMENT PANEL CONNECT; 1ST DESIGN SEE POINT # 25752013)
    Fitting Vehicle Options: G1,2(LU3,C42,C60)(2ND DES)
    $1485.14
    $948.11
  • 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
  • HARNESS, ENGINE WIRING(INCLUDES 2,9,10,13,16)(HAS A 24-WAY F INLINE TO INSTRUMENT PANEL CONNECT; 2ND DESIGN SEE POINT # 25757503)
    Fitting Vehicle Options: G1,2(LU3,C42,C60)(1ST DES)
    $1568.39
    $1001.26
  • 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
  • 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 SEE15134518)
    Fitting Vehicle Options: G1,2(LM7,C42,C60)(1ST DES)
    $1568.39
    $1001.26
  • 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(LQ4,C42,C60,NC8,NF4,NF9,NT9)(EXC KL6,KL8)(1ST DES), G2,3(LR4,C42,C60)(1ST DES)
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  • 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)
    $1689.71
    $1078.72
  •  
    SENSOR, Computer Control Sensors Make Sure These Fit  
  • SENSOR, HEATED OXYGEN(POSITION 2)(PRE CONVERTER)(OEM SENSOR)
    Location: Driver Side
    Fitting Vehicle Options: G1,2,3(LM7,LQ4,LR4,LU3)
    Replaced by: 19209808
    $91.28
    $51.05
  • SENSOR, HEATED OXYGEN(POSITION 2)(PRE CONVERTER)(OEM SENSOR)(USED ON VEHICLES W/RIGHT HAND O2 SENSOR MARKED 25333812)(FOR 2ND DESIGN SEE 19209805)
    Location: Passenger Side
    Fitting Vehicle Options: G1,2,3(LM7,LQ4,LR4,LU3)(1ST DES)
    Replaced by: 19209808
    $91.28
    $51.05
  • 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
    $67.66
  • 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
    $51.05
  • 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
    $67.66
  •  
    Standard Parts Make Sure These Fit  
  • BOLT, HEAVY HEX FLANGED HEAD, M10X1.5X20(ENGINE WIRING HARNESS GROUND)
    $4.52
    $2.87
  • BOLT, HEXAGON W/FL WASHER,M6X1X20,12 THREAD,24 OUTSIDE DIAMETER,9.8,GMW3359, M-POINT(ENGINE WIRING HARNESS BRACKET)
    $3.61
    $2.31
  • BOLT, HEXAGON,M4.8X1.6X13,20 OUTSIDE DIAMETER,6010M MAT, 6047M FINISH(ENGINE WIRING HARNESS CLIP)(8.977)
    $4.77
    $3.05
  • 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
  • CLIP, (6.35 MM INSIDE DIAMETER)(PART OF 1)
    $4.66
    $2.96
  • 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
  • NUT, HEXAGON,M8X1.25,6.8THK,13 O.D.,10,PHOSPHATE ZINC ORGANIC - FLAKE(ENGINE WIRING HARNESS)
    $1.04
    $0.66
  • NUT, HEXAGON,M8X1.25,6.8THK,13 O.D.,10,PHOSPHATE ZINC ORGANIC - FLAKE(ENGINE WIRING HARNESS)
    $1.04
    $0.66
  • NUT-HEXLOCK, M5X.8,5.4THK,9 STEEL,GMW3044,W/EXTERNAL.TOOTH LOCK.WASHER.(ENGINE WIRING HARNESS START MOTOR LEAD)
    $10.55
    $6.73
  • SCREW, HEXAGON WASHER HEAD,TAP,M8X1.25X20,17.2 O.D.,6174M,PC(ENGINE WIRING HARNESS CLIP)
    $4.14
    $2.64
  • 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 2500 2WD 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, 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: (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.