Wiring Harness/Engine fit your 2003 Chevrolet Silverado 3500 4WD

Currently shopping for

2003 Chevrolet Silverado 3500 4WD

Change Vehicle

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

Sort by:

Recommended

Part No. & Part Description

Price & Qty.

Part No. &
Part Description

13500114
RELAY, A/C Electrical, RELAY,A/C COMPRESSOR(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.510)
$20.04 $9.54
1
Add To Cart

13503102
RELAY, Starter Motor, RELAY,STARTER(4 TERMINAL)(GRAY)(SPST 280 MINI)(4-WAY)(SQUARE CASE)(W/RESISTOR)(1.055)
$16.22 $7.65
1
Add To Cart

CONNECTOR, Distributor (also Knock Sensor)
13586114
CONNECTOR, SENSOR-KNOCK(PART OF 1)(BLACK)(ACCEPTS 1.5MM TERMS)(2-WAY FEMALE)(METRI-PACKING 150 SERIES)(W/LEADS)(1.203)
Fitting Vehicle Options: CK1,2,3
$49.12 $26.03
1
Add To Cart
12102621
CONNECTOR, SENSOR-KNOCK(ENGINE HARNESS)(PART OF 1)(GRAY)(1-WAY MALE)(W/LEADS)(2.535)
- Fitting Vehicle Options: CK1,2,3
- Require Quantity: 02
- Package Quantity: 1
$32.02 $16.97
1
Add To Cart
13585316
CONNECTOR, CAMSHAFT POSITION SENS(W/O SIDE TABS)(PART OF 1)(BLACK)(3-WAY FEMALE)(W/LEADS)(2.535)
- Fitting Vehicle Options: CK1,2,3
$55.62 $29.48
1
Add To Cart
15306120
CONNECTOR, SENSOR-CRANKSHAFT POSITION(PART OF 1)(NATURAL)(3-WAY FEMALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$58.27 $30.88
1
Add To Cart
15306376
CONNECTOR, SENSOR-KNOCK(PART OF 1)(1-WAY FEMALE)(W/LEADS)(METRI-PACK 150)
- Fitting Vehicle Options: CK2,3(L18)
- Require Quantity: 02
- Package Quantity: 1
- Replaced By: 19332518
$36.24 $20.20
1
Add To Cart
88987997
CONNECTOR, CAMSHAFT POSITION SENS(PART OF 1)(GRAY)(3-WAY FEMALE)(W/LEADS)(3.682)
- Fitting Vehicle Options: CK2,3(L18)
$70.50 $37.37
1
Add To Cart

CONNECTOR, Engine Oil Level
13586114
CONNECTOR, SENSOR-ENGINE OIL LEVEL(PART OF 1)(BLACK)(ACCEPTS 1.5MM TERMS)(2-WAY FEMALE)(METRI-PACKING 150 SERIES)(W/LEADS)(1.203)
Fitting Vehicle Options: CK1,2,3
$49.12 $26.03
1
Add To Cart
88953151
CONNECTOR, SENSOR-ENGINE OIL LEVEL(PART OF 1)(NATURAL)(2-WAY FEMALE)(W/LEADS)
- Fitting Vehicle Options: CK2,3(L18)

CONNECTOR, Computer Control Sensors
88987993
CONNECTOR, SENSOR-VEHICLE SPEED(GRAY)(2-WAY FEMALE)(GT150 SEALED)(W/LEADS)(4.651)
Fitting Vehicle Options: CK1,2,3
$81.18 $36.37
1
Add To Cart
88987993
CONNECTOR, SENSOR-VEHICLE SPEED(PART OF 1)(GRAY)(2-WAY FEMALE)(GT150 SEALED)(W/LEADS)(4.651)
- Fitting Vehicle Options: CK1,2,3
$81.18 $36.37
1
Add To Cart
88953157
CONNECTOR, SENSOR-MASS AIRFLOW(WHITE)(5-WAY FEMALE 090II SEALED)(W/LEADS)
- Fitting Vehicle Options: CK2,3(LB7,ML6,M74)
$72.54 $38.45
1
Add To Cart
15305801
CONNECTOR, INLINE-TO OXYGEN SENSOR(PART OF 1)(BLACK)(4-WAY MALE)(W/LEADS)(2.530)
- Fitting Vehicle Options: CK3
$76.54 $40.57
1
Add To Cart
15306113
CONNECTOR, SENSOR-MASS AIRFLOW(SHROUD HAS ROUND EDGES, PURPLE, RECTANGLE)(BLACK)(5-WAY FEMALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$68.36 $36.22
1
Add To Cart
15306113
CONNECTOR, SENSOR-MASS AIRFLOW(SHROUD HAS ROUND EDGES, PURPLE, RECTANGLE)(PART OF 1)(BLACK)(5-WAY FEMALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$68.36 $36.22
1
Add To Cart
15306311
CONNECTOR, INLINE-TO OXYGEN SENSOR(PART OF 1)(GRAY)(4-WAY MALE,5-WAY BASE)(W/LEADS)
- Fitting Vehicle Options: CK3
$96.34 $51.06
1
Add To Cart
15306365
CONNECTOR, INLINE-TO OXYGEN SENSOR(PART OF 1)(GRAY)(4-WAY FEMALE)(METRI-PACK 150)(W/LEADS)
- Fitting Vehicle Options: CK3
$82.74 $46.13
1
Add To Cart
88987997
CONNECTOR, MAP SENS(PART OF 1)(GRAY)(3-WAY FEMALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$70.50 $37.37
1
Add To Cart

CONNECTOR, Generator
15306071
CONNECTOR, GENERATOR(NATURAL)(1-WAY FEMALE)(W/LEADS)
Fitting Vehicle Options: CK2,3
$24.98 $13.24
1
Add To Cart
15306071
CONNECTOR, GENERATOR(PART OF 1)(NATURAL)(1-WAY FEMALE)(W/LEADS)
- Fitting Vehicle Options: CK2,3
$24.98 $13.24
1
Add To Cart
15306329
CONNECTOR, GENERATOR(BEIGE)(2-WAY FEMALE)(4-WAY BASE W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$50.66 $26.85
1
Add To Cart
15306329
CONNECTOR, GENERATOR(PART OF 1)(BEIGE)(2-WAY FEMALE)(4-WAY BASE W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$50.66 $26.85
1
Add To Cart

88987993
CONNECTOR, Coolant Temperature (Engine Unit), CONNECTOR,SENSOR-ENGINE COOLANT TEMPERATURE(GT150)(GRAY)(2-WAY FEMALE)(GT150 SEALED)(W/LEADS)(4.651)
$81.18 $36.37
1
Add To Cart

CONNECTOR, Chassis Electrical
15300003
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(BLACK)(3-WAY MALE)(W/O LEADS)(METRI-PACK 280-BODY ONLY)
Fitting Vehicle Options: K1,2,3
$7.20 $4.57
1
Add To Cart
15300003
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(PART OF 1)(BLACK)(3-WAY MALE)(W/O LEADS)(METRI-PACK 280-BODY ONLY)
- Fitting Vehicle Options: K1,2,3
$7.20 $4.57
1
Add To Cart
15326843
CONNECTOR, CHASSIS WIRING HARNESS(BLACK)(10-WAY FEMALE)(W/O LEADS)(W/CONNECTOR POSITION ASSURANCE)
- Fitting Vehicle Options: CK1,2,3
$7.72 $4.91
1
Add To Cart
15326843
CONNECTOR, CHASSIS WIRING HARNESS(PART OF 1)(BLACK)(10-WAY FEMALE)(W/O LEADS)(W/CONNECTOR POSITION ASSURANCE)
- Fitting Vehicle Options: CK1,2,3
$7.72 $4.91
1
Add To Cart
12117025
CONNECTOR, ENGINE WIRING HARNESS(TRANSFER CASE)(BLACK)(3-WAY FEMALE)(W/LEADS)(2.383)
- Fitting Vehicle Options: K1,2,3
$65.94 $34.95
1
Add To Cart
19368859
CONNECTOR, CHASSIS WIRING HARNESS(STARTER MOTOR X1)(GRAY)(4MM2)(1-WAY FEMALE)(W/LEADS)(SIDE ELECTRIC CODE: M64)
- Fitting Vehicle Options: CK1,2,3
$57.66 $30.56
1
Add To Cart
19368859
CONNECTOR, CHASSIS WIRING HARNESS(STARTER MOTOR X1)(PART OF 1)(GRAY)(4MM2)(1-WAY FEMALE)(W/LEADS)(SIDE ELECTRIC CODE: M64)
- Fitting Vehicle Options: CK1,2,3
$57.66 $30.56
1
Add To Cart
12065172
CONNECTOR, CHASSIS WIRING HARNESS(1-WAY FEMALE M/P280)(2.535)
- Fitting Vehicle Options: CK1,2,3
$7.01 $4.46
1
Add To Cart
12065172
CONNECTOR, CHASSIS WIRING HARNESS(PART OF 1)(1-WAY FEMALE M/P280)(2.535)
- Fitting Vehicle Options: CK1,2,3
$7.01 $4.46
1
Add To Cart
12085212
CONNECTOR, ENGINE WIRING HARNESS(BATTERY NEGATIVE)(BLACK)(2-WAY FEMALE)(W/LEADS)(METRI-PACK 480)(2.535)
- Fitting Vehicle Options: CK1,2,3(9L4)
$145.10 $65.00
1
Add To Cart
12102490
CONNECTOR, ENGINE WIRING HARNESS(GRAY)(7-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$83.96 $44.50
1
Add To Cart
12167120
CONNECTOR, ENGINE WIRING HARNESS(FROM KNOCK SENSOR JMP, METRI-PACK 150)(BLACK)(2-WAY MALE)(W/LEADS)(OVAL)(MATING CONNECT W/LEADS USE 12102747)(4.720)
- Fitting Vehicle Options: CK1,2,3
$62.82 $33.29
1
Add To Cart
12167120
CONNECTOR, CHASSIS WIRING HARNESS(METRI-PACK 150)(BLACK)(2-WAY MALE)(W/LEADS)(OVAL)(MATING CONNECT W/LEADS USE 12102747)(4.720)
- Fitting Vehicle Options: CK1,2,3
$62.82 $33.29
1
Add To Cart
12167120
CONNECTOR, CHASSIS WIRING HARNESS(METRI-PACK 150)(PART OF 1)(BLACK)(2-WAY MALE)(W/LEADS)(OVAL)(MATING CONNECT W/LEADS USE 12102747)(4.720)
- Fitting Vehicle Options: CK1,2,3
$62.82 $33.29
1
Add To Cart
13578569
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(GRAY)(22-WAY MALE)(W/O LEADS)
- Fitting Vehicle Options: CK1,2,3
$29.33 $18.64
1
Add To Cart
13578569
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(PART OF 1)(GRAY)(22-WAY MALE)(W/O LEADS)
- Fitting Vehicle Options: CK1,2,3
$29.33 $18.64
1
Add To Cart
13584094
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(GT150)(BLACK)(6-WAY FEMALE)(W/LEADS)(2.383)
- Fitting Vehicle Options: CK2,3(LB7,L18,ML6,M74)
$41.36 $21.92
1
Add To Cart
13584094
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(GT150)(PART OF 1)(BLACK)(6-WAY FEMALE)(W/LEADS)(2.383)
- Fitting Vehicle Options: CK2,3(LB7,L18,ML6,M74)
$41.36 $21.92
1
Add To Cart
13584253
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(BLACK)(8-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$57.46 $30.45
1
Add To Cart
13584253
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(PART OF 1)(BLACK)(8-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$57.46 $30.45
1
Add To Cart
15304692
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(BLACK)(18-WAY FEMALE)(W/O LEADS)
- Fitting Vehicle Options: CK1,2,3
$6.27 $3.98
1
Add To Cart
15304692
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(PART OF 1)(BLACK)(18-WAY FEMALE)(W/O LEADS)
- Fitting Vehicle Options: CK1,2,3
$6.27 $3.98
1
Add To Cart
15305857
CONNECTOR, INLINE-TO TRANS(GRAY)(14-WAY FEMALE)(W/LEADS)(ACTUALLY 20-WAY W/6 CAVITIES MOLDED)
- Fitting Vehicle Options: CK1,2,3
$169.02 $75.72
1
Add To Cart
15305857
CONNECTOR, INLINE-TO TRANS(PART OF 1)(GRAY)(14-WAY FEMALE)(W/LEADS)(ACTUALLY 20-WAY W/6 CAVITIES MOLDED)
- Fitting Vehicle Options: CK1,2,3
$169.02 $75.72
1
Add To Cart
15306348
CONNECTOR, ENGINE WIRING HARNESS(4 END TERMS ARE 2.8MM WIDE AND 12 MIDDLE TERMS ARE 1.5MM WIDE)(BLACK)(16-WAY FEMALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$188.64 $84.52
1
Add To Cart
15326829
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(BLACK)(6-WAY FEMALE GT150)(W/O LEADS)(HAS FULL SHROUD)
- Fitting Vehicle Options: CK2,3(LB7,L18,ML6,M74)
- Replaced By: 13584094
$41.36 $21.92
1
Add To Cart
15326829
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(PART OF 1)(BLACK)(6-WAY FEMALE GT150)(W/O LEADS)(HAS FULL SHROUD)
- Fitting Vehicle Options: CK2,3(LB7,L18,ML6,M74)
- Replaced By: 13584094
$41.36 $21.92
1
Add To Cart
19151490
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(BLACK)(10-WAY MALE)(W/O LEADS)(W/TERMINAL POSITION ASSURANCE & CAVITY PLUG)(13.100)
- Fitting Vehicle Options: CK1,2,3
$25.15 $15.99
1
Add To Cart
19151490
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(PART OF 1)(BLACK)(10-WAY MALE)(W/O LEADS)(W/TERMINAL POSITION ASSURANCE & CAVITY PLUG)(13.100)
- Fitting Vehicle Options: CK1,2,3
$25.15 $15.99
1
Add To Cart
19151507
CONNECTOR, ENGINE WIRING HARNESS(BLACK)(38-WAY FEMALE)(W/TERMINAL POSITION ASSURANCE,SEAL,CAVITY PLUGS,BRACKET & CM LEVER)
- Fitting Vehicle Options: CK2,3(03-43-53)(LB7,LLY)
$53.63 $34.07
1
Add To Cart
19153767
CONNECTOR, ENGINE WIRING HARNESS(BLACK)(24-WAY FEMALE)(W/O LEADS)
- Fitting Vehicle Options: CK2,3(LLY,LB7)
$38.82 $24.69
1
Add To Cart
19181245
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(2IN WIDE, METRI-PACK 150/280)(BLACK)(16-WAY MALE)(W/O LEADS)
- Fitting Vehicle Options: CK1,2,3
$8.20 $4.57
1
Add To Cart
19181245
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(2IN WIDE, METRI-PACK 150/280)(PART OF 1)(BLACK)(16-WAY MALE)(W/O LEADS)
- Fitting Vehicle Options: CK1,2,3
$8.20 $4.57
1
Add To Cart
19328670
CONNECTOR, INLINE-TO TRANS(BLACK)(20-WAY FEMALE)(W/O LEADS)(MAY NEED WIRE 13582227)
- Fitting Vehicle Options: CK2,3(M74)
$66.38 $37.01
1
Add To Cart
19328670
CONNECTOR, INLINE-TO TRANS(PART OF 1)(BLACK)(20-WAY FEMALE)(W/O LEADS)(MAY NEED WIRE 13582227)
- Fitting Vehicle Options: CK2,3(M74)
$66.38 $37.01
1
Add To Cart
19368866
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(METRI-PACK 150)(BLACK)(2MM2)(6-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$59.16 $32.98
1
Add To Cart
19368866
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(METRI-PACK 150)(PART OF 1)(BLACK)(2MM2)(6-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$59.16 $32.98
1
Add To Cart
84779454
CONNECTOR, ENGINE WIRING HARNESS(BLACK)(1.5MM2)(6-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: CK2,3(03-43-53)
$79.04 $44.06
1
Add To Cart
88986252
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(BLACK)(12-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$298.32 $188.76
1
Add To Cart
88986252
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(PART OF 1)(BLACK)(12-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$298.32 $188.76
1
Add To Cart
88986267
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(FROM FUSE BLOCK BRAKE JUMPER)(BLACK)(34.6MM WIDE)(12-WAY FEMALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$280.80 $177.67
1
Add To Cart
88986267
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(FROM FUSE BLOCK BRAKE JUMPER)(PART OF 1)(BLACK)(34.6MM WIDE)(12-WAY FEMALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
$280.80 $177.67
1
Add To Cart
88987998
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(YELLOW)(4-WAY MALE)(METRI-PACK 280)(W/LEADS)(16.712)
- Fitting Vehicle Options: CK1,2,3
- Require Quantity: 02
- Package Quantity: 1
$112.58 $50.43
1
Add To Cart
88987998
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(PART OF 1)(YELLOW)(4-WAY MALE)(METRI-PACK 280)(W/LEADS)(16.712)
- Fitting Vehicle Options: CK1,2,3
- Require Quantity: 02
- Package Quantity: 1
$112.58 $50.43
1
Add To Cart
88988307
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(BLACK)(40-WAY MALE)(W/O LEADS)(W/CAM LEVER, TERMINAL POSITION ASSURANCE & STABLZR)
- Fitting Vehicle Options: CK1,2,3
$42.82 $22.69
1
Add To Cart
88988307
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(PART OF 1)(BLACK)(40-WAY MALE)(W/O LEADS)(W/CAM LEVER, TERMINAL POSITION ASSURANCE & STABLZR)
- Fitting Vehicle Options: CK1,2,3
$42.82 $22.69
1
Add To Cart
89046633
CONNECTOR, ENGINE WIRING HARNESS(GT150, FROM 4 WHEEL DRIVE HARNESS)(BLACK)(2-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: K1,2,3(NP1,NP2,NP8)
$66.44 $37.04
1
Add To Cart
15306125
CONNECTOR, CHASSIS WIRING HARNESS(BLUE)(12-WAY MALE)(W/LEADS)(GT150/280)
- Fitting Vehicle Options: CK1,2,3
15306125
CONNECTOR, CHASSIS WIRING HARNESS(PART OF 1)(BLUE)(12-WAY MALE)(W/LEADS)(GT150/280)
- Fitting Vehicle Options: CK1,2,3
12085487
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(BLACK)(4-WAY FEMALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
12085487
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(PART OF 1)(BLACK)(4-WAY FEMALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
12085669
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(BLACK)(1-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
12085669
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(PART OF 1)(BLACK)(1-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
12129135
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(BLACK)(4-WAY MALE)(W/O LEADS)
- Fitting Vehicle Options: CK1,2,3
12129135
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(PART OF 1)(BLACK)(4-WAY MALE)(W/O LEADS)
- Fitting Vehicle Options: CK1,2,3
15306199
CONNECTOR, ENGINE WIRING HARNESS(12-WAY FEMALE)(W/LEADS)(GT150,280)
- Fitting Vehicle Options: CK1,2,3
15306231
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(GRAY)(24-WAY MALE W/O LEADS)(9.656)
- Fitting Vehicle Options: CK1,2,3
15306231
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(PART OF 1)(GRAY)(24-WAY MALE W/O LEADS)(9.656)
- Fitting Vehicle Options: CK1,2,3
15306371
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(FROM HEADLINING HARNESS, GT150)(BLACK)(16-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
15306371
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(FROM HEADLINING HARNESS, GT150)(PART OF 1)(BLACK)(16-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
19260871
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(SEAT HARNESS TO BODY HARNESS, GT150/280)(16-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
19260871
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(SEAT HARNESS TO BODY HARNESS, GT150/280)(PART OF 1)(16-WAY MALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
88953290
CONNECTOR, CHASSIS WIRING HARNESS(NATURAL)(12-WAY MALE W/LEADS)
- Fitting Vehicle Options: CK1,2,3
88953290
CONNECTOR, CHASSIS WIRING HARNESS(PART OF 1)(NATURAL)(12-WAY MALE W/LEADS)
- Fitting Vehicle Options: CK1,2,3
88987501
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(12-WAY MALE GT)(W/O LEADS)
- Fitting Vehicle Options: K1,2,3
88987501
CONNECTOR, INSTRUMENT PANEL WIRING HARNESS(PART OF 1)(12-WAY MALE GT)(W/O LEADS)
- Fitting Vehicle Options: K1,2,3
88988438
CONNECTOR, ENGINE WIRING HARNESS(12-WAY FEMALE)(W/O LEADS)(GT 150/280)
- Fitting Vehicle Options: CK1,2,3

11502848
NUT, Hexagon, NUT,HEXAGON STYLE M5X.8X4.45(TO STARTER)(PART OF 1)
- Replaced By: 11609467
$5.17 $3.29
1
Add To Cart

12101937
CONNECTOR, A/C Compressor Clutch Actuating, CONNECTOR,COIL-A/C CLUTCH(GRAY)(2-WAY FEMALE)(W/LEADS)(2.535)
$41.04 $21.75
1
Add To Cart

CONNECTOR, Wiring Junction
19167008
CONNECTOR, BLOCK-ACCESSORY WIRING JUNCTION(PART OF 1)(BLUE)(8-WAY FEMALE)(SEALED)(W/LEADS)(14GA WIRES)(13.100)
Fitting Vehicle Options: CK1,2,3
$104.46 $32.47
1
Add To Cart
12167120
CONNECTOR, BLOCK-ACCESSORY WIRING JUNCTION(METRI-PACK 150)(PART OF 1)(BLACK)(2-WAY MALE)(W/LEADS)(OVAL)(MATING CONNECT W/LEADS USE 12102747)(4.720)
- Fitting Vehicle Options: CK1,2,3(03-43-53)(LB7,LM7,LQ4,LR4,L18,L59)
$62.82 $33.29
1
Add To Cart
12167120
CONNECTOR, BLOCK-ACCESSORY WIRING JUNCTION(PART OF 1)(BLACK)(2-WAY MALE)(W/LEADS)(OVAL)(MATING CONNECT W/LEADS USE 12102747)(4.720)
- Fitting Vehicle Options: CK1,2,3(03-43-53)
$62.82 $33.29
1
Add To Cart
15306133
CONNECTOR, BLOCK-ACCESSORY WIRING JUNCTION(METRI-PACK 480)(PART OF 1)(BLACK)(2-WAY MALE)(W/LEADS)(9.276)
- Fitting Vehicle Options: CK1,2,3
$45.02 $23.86
1
Add To Cart
88988814
CONNECTOR, FUEL INJECTOR(1IN)(PART OF 1)(BLACK)(2-WAY FEMALE)(W/LEADS)(MICRO 064)
- Fitting Vehicle Options: CK1,2,3(LM7,LR4,LQ4,LQ9,L18)
- Require Quantity: 08
- Package Quantity: 1
$57.66 $30.56
1
Add To Cart
12193929
CONNECTOR, BLOCK-ACCESSORY WIRING JUNCTION(PART OF 1)(GREEN)(6-WAY FEMALE)(W/O LEADS)
- Fitting Vehicle Options: CK1,2,3
15306105
CONNECTOR, BLOCK-ACCESSORY WIRING JUNCTION(PART OF 1)(CREAM)(6 WAY FEMALE)(LEADS)
- Fitting Vehicle Options: CK1,2,3
15306106
CONNECTOR, BLOCK-ACCESSORY WIRING JUNCTION(PART OF 1)(BROWN)(6-WAY FEMALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3(V92,Z82)
15306107
CONNECTOR, BLOCK-ACCESSORY WIRING JUNCTION(PART OF 1)(BLACK)(6-WAY FEMALE)(W/LEADS)(2.530)
- Fitting Vehicle Options: CK1,2,3
19115428
CONNECTOR, BLOCK-ACCESSORY WIRING JUNCTION(PART OF 1)(BLACK)(68-WAY FEMALE)(W/O LEADS)
- Fitting Vehicle Options: CK1,2,3
19167006
CONNECTOR, BLOCK-ACCESSORY WIRING JUNCTION(PART OF 1)(GREEN)(32-WAY FEMALE)(UNSEALED)(W/O LEADS)(W/TPAS)
- Fitting Vehicle Options: CK1,2,3
19167007
CONNECTOR, BLOCK-ACCESSORY WIRING JUNCTION(PART OF 1)(RED)(32-WAY FEMALE)(UNSEALED)(W/O LEADS)(W/TPAS)
- Fitting Vehicle Options: CK1,2,3
88986446
CONNECTOR, BLOCK-ACCESSORY WIRING JUNCTION(PART OF 1)(2-WAY FEMALE)(W/LEADS)
- Fitting Vehicle Options: CK1,2,3
88988945
CONNECTOR, BLOCK-ACCESSORY WIRING JUNCTION(PART OF 1)(LIGHT GRAY)(68-WAY FEMALE)(W/O LEADS)
- Fitting Vehicle Options: CK1,2,3
89046826
CONNECTOR, BLOCK-ACCESSORY WIRING JUNCTION(PART OF 1)(BROWN)(12-WAY FEMALE)(W/O LEADS)
- Fitting Vehicle Options: CK1,2,3

CONNECTOR, Emission Control System
15306027
CONNECTOR, SOLENOID-EGR VALVE(PART OF 1)(LIGHT GRAY)(5-WAY FEMALE)(W/LEADS)(W/COVER)(2.530)
Fitting Vehicle Options: CK2,3
$61.42 $32.55
1
Add To Cart
12167308
CONNECTOR, POWERTRAIN CONTROL MODULE(TO BLACK ENAMEL HIGH COMPRESSION WHEN PART # AVAIL)(INCLUDES SEAL,COVER,RETS)(W/O LEADS)(80-WAY FEMALE USE TERMINAL 12084912 18 GAGE & TERMINAL 12084913 20 GAGE)
- Fitting Vehicle Options: CK1,2,3
- Require Quantity: 02
- Package Quantity: 1
$78.31 $49.77
12167308
CONNECTOR, POWERTRAIN CONTROL MODULE(ENGINE HARNESS)(INCLUDES SEAL,COVER,RETS)(W/O LEADS)(80-WAY FEMALE USE TERMINAL 12084912 18 GAGE & TERMINAL 12084913 20 GAGE)
- Fitting Vehicle Options: CK2,3(LB7)
- Require Quantity: 02
- Package Quantity: 1
$78.31 $49.77
12167308
CONNECTOR, POWERTRAIN CONTROL MODULE(PART OF 1)(INCLUDES SEAL,COVER,RETS)(W/O LEADS)(80-WAY FEMALE USE TERMINAL 12084912 18 GAGE & TERMINAL 12084913 20 GAGE)
- Fitting Vehicle Options: CK1,2,3
- Require Quantity: 02
- Package Quantity: 1
$78.31 $49.77

13580883
CONNECTOR, Ignition Coil, CONNECTOR,COIL-IGNITION(ENGINE HARNESS)(PART OF 1)(GRAY)(7-WAY FEMALE)(W/LEADS)(2.530)
- Require Quantity: 02
- Package Quantity: 1
$97.28 $43.58
1
Add To Cart

19368669
CONNECTOR, Engine Oil Pressure/Temperature, CONNECTOR,ENGINE OIL PRESSURE GAGE SENSOR(ROUND)(PART OF 1)(BLACK)(0.75MM)(3-WAY FEMALE)(W/LEADS)(2.530)
$57.66 $30.56
1
Add To Cart

12085485
CONNECTOR, Back Up Lamp, CONNECTOR,SWITCH-BACK UP LAMP(PART OF 1)(BROWN)(2-WAY MALE)(W/LEADS)(2.535)
$34.71 $19.37
1
Add To Cart

CONNECTOR, Electronic Brake Control
88987977
CONNECTOR, ELECTRONIC TRACTION CONTROL MODULE(PART OF 1)(16-WAY F W/O LEADS INCLUDES CONNECT,TERMINAL POSITION ASSURANCE,CONNECTOR POSITION ASSURANCE,CABLE & STRAIN RELIEF LOCATING)(3.670)
Fitting Vehicle Options: CK1,2,3
$49.60 $26.29
1
Add To Cart
12117372
CONNECTOR, ELECTRONIC TRACTION CONTROL MODULE(PART OF 1)(BLACK)(10-WAY MALE)(W/ LEADS)(2.530)
- Fitting Vehicle Options: CK2,3

12355066
STRAP, Fuse, STRAP,WIRING HARNESS
$0.42 $0.25
25
Add To Cart

15305887
CONNECTOR, Transmission Safety Start/Warning, CONNECTOR,SWITCH-PARKING/NEUTRAL POSITION & BACK UP LAMP(GRAY)(7-WAY FEMALE)(W/LEADS)
$175.32 $78.55
1
Add To Cart

CONNECTOR, Safety Starting Switch Or Speed Sensing
15305887
CONNECTOR, SWITCH-PARKING/NEUTRAL POSITION(PART OF 1)(GRAY)(7-WAY FEMALE)(W/LEADS)
Fitting Vehicle Options: CK2,3(L18)
$175.32 $78.55
1
Add To Cart
88987185
CONNECTOR, SWITCH-PARKING/NEUTRAL POSITION & BACK UP LAMP(BLACK)(4-WAY FEMALE)(W/LEADS)(2.530)
- Fitting Vehicle Options: CK1,2,3
$106.24 $56.30
1
Add To Cart
88987185
CONNECTOR, SWITCH-PARKING/NEUTRAL POSITION(PART OF 1)(BLACK)(4-WAY FEMALE)(W/LEADS)(2.530)
- Fitting Vehicle Options: CK2,3(L18)
$106.24 $56.30
1
Add To Cart

19367637
CONNECTOR, Throttle Control, CONNECTOR,MOTOR-THROTTLE ACTUATOR(PART OF 1)(BLACK)(1.5MM2)(8-WAY FEMALE)(W/LEADS)(2.530)
$108.94 $48.81
1
Add To Cart

CONNECTOR, A/C Compressor (Internal Parts)

19368034
CONNECTOR, SWITCH-A/C CYCLING SWITCH(GRAY)(2-WAY FEMALE)(W/LEADS)(2.530)
$47.86 $25.37
1
Add To Cart
19368034
CONNECTOR, SWITCH-A/C CYCLING SWITCH(PART OF 1)(GRAY)(2-WAY FEMALE)(W/LEADS)(2.530)
$47.86 $25.37
1
Add To Cart

19368034
CONNECTOR, Radiator Tank, CONNECTOR,SWITCH-ENGINE COOLANT LEVEL(GRAY)(2-WAY FEMALE)(W/LEADS)(2.530)
$47.86 $25.37
1
Add To Cart

19368864
CONNECTOR, A/C Electric Temperature and Motor Control, CONNECTOR,MODULE-BLOWER MOTOR CONTROL(PART OF 1)(BLACK)(2.5MM2)(3-WAY FEMALE)(W/LEADS)(2.530)
$61.94 $32.83
1
Add To Cart

RETAINER, Chassis/Engine Wiring Harness
12129024
RETAINER, ECM WIRING HARNESS CONNECT(PART OF 1)(RED)(USE W/32-WAY CONNECT)
Fitting Vehicle Options: CK2,3(L18,LB7,M74,ML6)
12129030
RETAINER, ECM WIRING HARNESS CONNECT(PART OF 1)(GRAY)(STRAIN RELIEF)
- Fitting Vehicle Options: CK2,3(L18,LB7,M74,ML6)
- Require Quantity: 02
- Package Quantity: 1
12176408
RETAINER, ECM WIRING HARNESS CONNECT(PART OF 1)(BLUE)(RETAINS 40-WAY CONNECT)
- Fitting Vehicle Options: CK1,2,3
- Require Quantity: 02
- Package Quantity: 1

HARNESS, Engine Wiring
15192290
HARNESS, ENGINE WIRING(INCLUDES 2-32)
Fitting Vehicle Options: CK2,3(L18,ML6,NF4,NF9,NT9)(EXC PTO)
15192294
HARNESS, ENGINE WIRING(INCLUDES 2-32)
- Fitting Vehicle Options: CK3(L18,ML6,NF4,NT9,PTO)
15192297
HARNESS, ENGINE WIRING(INCLUDES 2-32)
- Fitting Vehicle Options: CK2,3(L18,M74,NC1,NC8)(EXC PTO), CK2,3(L18,M74,NF4,NF9,NT9)(EXC PTO)
15192298
HARNESS, ENGINE WIRING(INCLUDES 2-32)
- Fitting Vehicle Options: CK3(L18,M74,NF4,NT9,PTO), CK3(L18,M74,NC8,PTO)
15192299
HARNESS, ENGINE WIRING(INCLUDES 6,7)
- Fitting Vehicle Options: CK2,3(LB7,ML6,KG3,K68)(EXC PTO)
15192301
HARNESS, ENGINE WIRING(INCLUDES 6,7)
- Fitting Vehicle Options: CK3(LB7,ML6,KG3,K68,PTO)
15192303
HARNESS, ENGINE WIRING(INCLUDES 6,7)
- Fitting Vehicle Options: CK2,3(LB7,M74,K65,YF2), CK2,3(LB7,M74,KG3,K68)(EXC PTO,YF2), CK2,3(LB7,M74,8X5)(EXC PTO)
15192318
HARNESS, ENGINE WIRING(INCLUDES 6,7)
- Fitting Vehicle Options: CK3(LB7,M74,KG3,K68,PTO), CK3(LB7,M74,PTO,8X5)

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 2003 Chevrolet Silverado 3500 4WD 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 6.0L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L. Model Code: 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB.