Block-Underhood BEC fit your 2003 GMC Sierra 3500 4WD

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2003 GMC Sierra 3500 4WD

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Vehicle Options

Sierra 3500 Regular Cab

Vehicle Options

Sierra 3500 Regular Cab

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Starter, Generator, Ignition, Electrical, Lamps

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Transmission - Automatic

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Recommended

Part No. & Part Description

Price & Qty.

Part No. &
Part Description

11514623
BOLT, Hex, BOLT,HEXAGON W/CONICAL WASHER,M6X1X20(ENGINE WIRING HARNESS FUSE BLOCK BRACKET)
- Require Quantity: 04
- Package Quantity: 10
$5.34 $3.40
10
Add To Cart

13500114
RELAY, A/C Electrical, RELAY,A/C COMPRESSOR(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.510)
$20.04 $9.54
1
Add To Cart

RELAY, Capsule/Headlamp/Fog Lamp

13500114
RELAY, HEADLAMP LOW BEAM(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.510)
$20.04 $9.54
1
Add To Cart
13500114
RELAY, HEADLAMP HIGH BEAM(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.510)
$20.04 $9.54
1
Add To Cart

13500114
RELAY, Horn, RELAY,HORN(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.510)
$20.04 $9.54
1
Add To Cart

RELAY, Headlamp/Fog Lamp/Turn Signal

13500114
RELAY, FOG LAMP(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.510)
$20.04 $9.54
1
Add To Cart
13500114
RELAY, DAYTIME RUNNING LAMP(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.510)
$20.04 $9.54
1
Add To Cart
13500126
RELAY, FOG LAMP(5-WAY, HIGH-POWER, W/RESISTOR, UNSHROUDED, MICRO, CODE 7866)(PART OF 14)(BLACK)(35AMP)(5 TERMINAL)(HIGH CURRENT MICRO 280)(10.150)
$21.00 $11.71
1
Add To Cart

RELAY, Voltage and Glow Plug

13500114
RELAY, FOG LAMP(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)
$20.04 $9.54
1
Add To Cart
13503102
RELAY, IGNITION(4 TERMINAL)(PART OF 14)(GRAY)(SPST 280 MINI)(4-WAY)(SQUARE CASE)(W/RESISTOR)(1.055)
$16.22 $7.86
1
Add To Cart

FUSE, Fuse

15305191
FUSE, MEGA(175 AMP)(BLACK W/SIZE STAMPED IN WHITE ON CASE(GLOW PLUG)
$14.65 $9.31
1
Add To Cart
88909754
FUSE, MINI(15 AMP)(BLUE)(QTY 25(PART OF 14)
- Require Quantity: 17
- Package Quantity: 25
$4.88 $2.72
25
Add To Cart
12092079
FUSE, MINI(10 AMP)(RED)(QTY 10(PART OF 14)
- Require Quantity: 20
- Package Quantity: 10
$7.44 $4.15
10
Add To Cart
84082834
FUSE, J-CASE(40 AMP)(FEMALE)(REGULAR)(GREEN(PART OF 14)
$7.19 $4.57
1
Add To Cart
88861352
FUSE, MINI(20 AMP)(YELLOW)(QTY 25(PART OF 14)
- Require Quantity: 07
- Package Quantity: 25
$3.89 $2.07
25
Add To Cart
88909756
FUSE, MINI(25 AMP)(CLEAR)(QTY 25(PART OF 14)
- Require Quantity: 04
- Package Quantity: 1
$0.16 $0.09
1
Add To Cart
12065933
FUSE, MAXI(40 AMP)(AMBER(PART OF 14)
$5.02 $2.80
5
Add To Cart
12092075
FUSE, MINI(30 AMP)(GREEN)(QTY 5(PART OF 14)
- Require Quantity: 07
- Package Quantity: 5
$0.16 $0.09
5
Add To Cart
88861355
FUSE, MAXI(50 AMP)(RED(PART OF 14)
$4.90 $2.73
1
Add To Cart
88909771
FUSE, MAXI(30 AMP)(GREEN)(QTY 5(PART OF 14)
$4.33 $2.41
1
Add To Cart
88909774
FUSE, MAXI(60 AMP)(BLUE(PART OF 14)
$3.96 $2.21
5
Add To Cart

13503102
RELAY, Rear Window Defogger, RELAY,REAR WINDOW DEFOGGER(4 TERMINAL)(PART OF 14)(GRAY)(SPST 280 MINI)(4-WAY)(SQUARE CASE)(W/RESISTOR)(1.055)
$16.22 $7.86
1
Add To Cart

13503102
RELAY, Starter Motor, RELAY,STARTER(4 TERMINAL)(PART OF 14)(GRAY)(SPST 280 MINI)(4-WAY)(SQUARE CASE)(W/RESISTOR)(1.055)
$16.22 $7.86
1
Add To Cart

15811689
COVER, Wiring Junction, COVER,ENGINE WIRING HARNESS JUNCTION BLOCK

BLOCK, Wiring Junction
15786043
BLOCK, ENGINE WIRING HARNESS JUNCTION(INCLUDES 2-6,8,13,15-19)(W/60 AMP J-CASE FUSE)
Fitting Vehicle Options: CK2,3(03-43-53)(LQ4,L18,L31)
$640.10 $404.99
1
Add To Cart
15115618
BLOCK, ENGINE WIRING HARNESS JUNCTION(INCLUDES 2-6,8,13,15-19)
- Fitting Vehicle Options: CK2,3(03-43-53)(LB7)
$883.76 $488.28
1
Add To Cart

15175348
BRACKET, Wiring Junction, BRACKET,ENGINE WIRING HARNESS FUSE BLOCK(USED TO MOUNT U/H BUSSED ELECTRICAL CENTER)
$45.52 $25.38

11509226
NUT, Hexagon, NUT,HEXAGON W/CONICAL WASHER,M8X1.25,7.5THK,19 O.D.,9,ZINC(INSTRUMENT PANEL WIRING HARNESS)
- Replaced By: 11609412
$7.38 $4.69
1
Add To Cart

RELAY, Chassis/Body Marker/Hazard
12135194
RELAY, EMERGENCY VEHICLE ROOF LAMP(PART OF 12)(TWO 8MM STUDS, ALSO MATES W/CONNECT 13586114)(2.510)
Fitting Vehicle Options: CK1,2,3(5X7)
$152.45 $68.30
1
Add To Cart
12135005
RELAY, EMERGENCY VEHICLE ROOF LAMP(PART OF 12)(W/BRACKET)(2.694)
- Fitting Vehicle Options: CK1,2,359(5Y0)
- Replaced By: 19118886
$108.08 $48.42
1
Add To Cart
84095360
RELAY, EMERGENCY VEHICLE ROOF LAMP(CODE 3601)(PART OF 12)(9.277)
- Fitting Vehicle Options: CK1,2,359(5Y0), CK1,2,359(5G4)
- Replaced By: 19118886
$108.08 $48.42
1
Add To Cart

12193775
STUD, Wiring Junction, STUD,ENGINE WIRING HARNESS JUNCTION BLOCK(PART OF 14)(M8 X 1.25 X 35.9)
$13.05
1
Add To Cart

15746765
HARNESS, Chassis Wiring, HARNESS,EMERGENCY VEHICLE ROOF LAMP RELAY WIRING(INCLUDES 11)
$107.26 $67.22
1
Add To Cart

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 2003 GMC Sierra 3500 4WD parts. Parts like Block-Underhood BEC 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 REGULAR CAB.