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Parts found for 2003 Chevrolet Silverado 2500 2WD > Starter, Generator, Ignition, Electrical, Lamps > Block-Underhood BEC

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  •  
    BLOCK, Wiring Junction Make Sure These Fit  
  • BLOCK, ENGINE WIRING HARNESS JUNCTION(INCLUDES 2-6,8,13,15-19)
    Fitting Vehicle Options: CK2,3(03-43-53)(LB7)
    $520.72
    $332.43
  • BLOCK, ENGINE WIRING HARNESS JUNCTION(INCLUDES 2-6,8,13,15-19)(W/60 AMP J-CASE FUSE)
    Fitting Vehicle Options: CK1(03-43-53), CK1,2(06-36)(EXC T89), CK2,3(03-43-53)(LQ4,L18,L31)
    $493.17
    $314.83
  • BOLT, Hex
    BOLT,HEXAGON W/CONICAL WASHER,M6X1X20(ENGINE WIRING HARNESS FUSE BLOCK BRACKET)
    Require Qty: 04
    Package Qty: 1
    $1.78
    $1.14
  •  
    FUSE, Fuse Make Sure These Fit  
  • FUSE, J-CASE(40 AMP)(FEMALE)(REGULAR)(GREEN(PART OF 14)
    $6.64
    $3.72
  • FUSE, MAXI(30 AMP)(GREEN)(QTY 5(PART OF 14)
    $4.33
    $2.42
  • FUSE, MAXI(40 AMP)(AMBER(PART OF 14)
    $4.19
    $2.35
  • FUSE, MAXI(50 AMP)(RED(PART OF 14)
    $4.16
    $2.33
  • FUSE, MAXI(60 AMP)(BLUE(PART OF 14)
    $3.96
    $2.22
  • FUSE, MEGA(175 AMP)(BLACK W/SIZE STAMPED IN WHITE ON CASE(GLOW PLUG)
    $12.41
    $7.92
  • FUSE, MINI(10 AMP)(RED)(QTY 10(PART OF 14)
    Require Qty: 20
    Package Qty: 1
    $6.16
    $3.45
  • FUSE, MINI(15 AMP)(BLUE)(QTY 25(PART OF 14)
    Require Qty: 17
    Package Qty: 1
    $3.16
    $1.77
  • FUSE, MINI(20 AMP)(YELLOW)(QTY 25(PART OF 14)
    Require Qty: 07
    Package Qty: 1
    $3.24
    $1.81
  • FUSE, MINI(25 AMP)(CLEAR)(QTY 25(PART OF 14)
    Require Qty: 04
    Package Qty: 1
    $5.00
    $2.80
  • FUSE, MINI(30 AMP)(GREEN)(QTY 5(PART OF 14)
    Require Qty: 07
    Package Qty: 1
    $2.92
    $1.64
  •  
    HARNESS, Chassis Wiring Make Sure These Fit  
  • HARNESS, EMERGENCY VEHICLE ROOF LAMP RELAY WIRING(INCLUDES 11)
    Fitting Vehicle Options: CK1,2,359(5Y0)
    $105.42
    $67.30
  • HARNESS, EMERGENCY VEHICLE ROOF LAMP RELAY WIRING(INCLUDES 11)
    Fitting Vehicle Options: CK360,364(5Y0)
    $103.05
    $65.79
  • NUT, Hexagon
    NUT,HEXAGON W/CONICAL WASHER,M8X1.25,7.5THK,19 O.D.,9,ZINC(INSTRUMENT PANEL WIRING HARNESS)
    Replaced by: 11609412
    $4.89
    $3.11
  •  
    RELAY, A/C Electrical Make Sure These Fit  
  • RELAY, A/C COMPRESSOR(5-WAY MALE, BLACK, CODE 7233)(PART OF 14)(SHROUDED)(W/RESISTOR)(SPDT 280 MINI)(FOR 4-TERMINAL APP CUT OFF CENTER TERMINAL LABELED 87A)
    Fitting Vehicle Options: CK360,364
    Replaced by: 19118886
    $49.39
    $28.48
  • RELAY, A/C COMPRESSOR(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.483)
    Fitting Vehicle Options: CK1,2,3
    $16.96
    $9.49
  •  
    RELAY, Capsule/Headlamp/Fog Lamp Make Sure These Fit  
  • RELAY, HEADLAMP HIGH BEAM(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.483)
    $16.96
    $9.49
  • RELAY, HEADLAMP LOW BEAM(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.483)
    $16.96
    $9.49
  •  
    RELAY, Chassis/Body Marker/Hazard Make Sure These Fit  
  • RELAY, EMERGENCY VEHICLE ROOF LAMP(CODE 3601)(PART OF 12)(SHROUDED)(W/RESISTOR)(SPDT 280 MINI)(FOR 4-TERMINAL APP CUT OFF CENTER TERMINAL LABELED 87A)(9.277)
    Fitting Vehicle Options: CK1,2,359(5G4), CK1,2,359(5Y0)
    Replaced by: 19118886
    $49.39
    $28.48
  • RELAY, EMERGENCY VEHICLE ROOF LAMP(PART OF 12)(MATES W/ CONNECT W/LEADS 13586114)(2.510)
    Fitting Vehicle Options: CK1,2,3(5X7)
    $78.74
    $44.04
  • RELAY, EMERGENCY VEHICLE ROOF LAMP(PART OF 12)(SHROUDED)(W/RESISTOR)(SPDT 280 MINI)(FOR 4-TERMINAL APP CUT OFF CENTER TERMINAL LABELED 87A)(9.277)
    Fitting Vehicle Options: CK360,364(5Y0)(EXC NQZ)
    Replaced by: 19118886
    $49.39
    $28.48
  • RELAY, EMERGENCY VEHICLE ROOF LAMP(PART OF 12)(W/BRACKET)(2.694)
    Fitting Vehicle Options: CK1,2,359(5Y0)
    Replaced by: 12193601
    $49.39
    $28.48
  •  
    RELAY, Fuel Pump Make Sure These Fit  
  • RELAY, FUEL PUMP(5-WAY MALE, BLACK, CODE 7233)(PART OF 14)(SHROUDED)(W/RESISTOR)(SPDT 280 MINI)(FOR 4-TERMINAL APP CUT OFF CENTER TERMINAL LABELED 87A)(9.277)
    Fitting Vehicle Options: C360(03)(L31,JVA,P96)(EXPORT), CK259(03-43-53)(KL6,KL8)(EXC HVY), CK259(06)(LQ4,NYS), CK259(06-36)(LQ4,L18,Z83,Z85)(EXC JL4), CK259,360,364(LB7,LQ4,L18), CK360,364(03-53)(LQ4,L18,5X7,8S3,5Y0)(EXC NQZ,8S3), CK364(03)(LB7)(EXC NQZ)
    Replaced by: 19118886
    $49.39
    $28.48
  • RELAY, FUEL PUMP(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.483)
    Fitting Vehicle Options: CK1(03-53), CK1,2(06)(EXC T89)
    $16.96
    $9.49
  •  
    RELAY, Headlamp/Fog Lamp/Turn Signal Make Sure These Fit  
  • RELAY, DAYTIME RUNNING LAMP(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.483)
    $16.96
    $9.49
  • RELAY, FOG LAMP(5-WAY, HIGH-POWER, W/RESISTOR, UNSHROUDED, MICRO, CODE 7866)(PART OF 14)(BLACK)(35AMP)(5 TERMINAL)(HIGH CURRENT MICRO 280)(2.483)
    $17.31
    $9.68
  • RELAY, FOG LAMP(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.483)
    $16.96
    $9.49
  • RELAY, Horn
    RELAY,HORN(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.483)
    $16.96
    $9.49
  • RELAY, Rear Window Defogger
    RELAY,REAR WINDOW DEFOGGER(4 TERMINAL)(PART OF 14)(GRAY)(SPST 280 MINI)(4-WAY)(SQUARE CASE)(W/RESISTOR)
    Replaced by: 13503102
    $9.58
    $5.53
  • RELAY, Starter Motor
    RELAY,STARTER(4 TERMINAL)(PART OF 14)(GRAY)(SPST 280 MINI)(4-WAY)(SQUARE CASE)(W/RESISTOR)(9.778)
    Replaced by: 13503102
    $9.58
    $5.53
  •  
    RELAY, Voltage and Glow Plug Make Sure These Fit  
  • RELAY, FOG LAMP(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.483)
    $16.96
    $9.49
  • RELAY, IGNITION(4 TERMINAL)(PART OF 14)(GRAY)(SPST 280 MINI)(4-WAY)(SQUARE CASE)(W/RESISTOR)(9.778)
    Replaced by: 13503102
    $9.58
    $5.53
Genuine GM Parts, the Right Choice
GMPartsGiant.com offers the lowest prices for genuine 2003 Chevrolet Silverado 2500 2WD 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: 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 5.7L, 8 Cyl 6.0L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L. Model Code: 1/2 TON, 1500 CREW CAB LONG BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3/4 TON, 3500 CREW CAB, 3500 EXTENDED CAB, 4 DOOR 1/2 TON.
 
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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.