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Parts found for 2003 Chevrolet Silverado 1500 HD 2WD > Starter, Generator, Ignition, Electrical, Lamps > Block-Underhood BEC

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  •  
    BLOCK, Wiring Junction Make Sure These Fit  
  • GM 15115618
    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
    Ships in 1 Business Day
  • GM 15786043
    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
    Ships in 1-3 Business Days
  • GM 11514623
    BOLT, Hex
    BOLT,HEXAGON W/CONICAL WASHER,M6X1X20(ENGINE WIRING HARNESS FUSE BLOCK BRACKET)
    Require Quantity: 04
    Package Quantity: 1
    $1.78
    $1.14
  • GM 15175348
    BRACKET, Wiring Junction
    BRACKET,ENGINE WIRING HARNESS FUSE BLOCK(USED TO MOUNT U/H BUSSED ELECTRICAL CENTER)
    $19.22
    $12.28
    Ships in 1-3 Business Days
  •  
    FUSE, Fuse Make Sure These Fit  
  • GM 15319478
    FUSE, J-CASE(40 AMP)(FEMALE)(REGULAR)(GREEN(PART OF 14)
    $6.64
    $3.72
    Ships in 1-3 Business Days
  • GM 88909771
    FUSE, MAXI(30 AMP)(GREEN)(QTY 5(PART OF 14)
    $4.33
    $2.42
    Ships in 1-3 Business Days
  • GM 12065933
    FUSE, MAXI(40 AMP)(AMBER(PART OF 14)
    $4.19
    $2.35
    Ships in 1-3 Business Days
  • GM 88861355
    FUSE, MAXI(50 AMP)(RED(PART OF 14)
    $4.16
    $2.33
    Ships in 1-3 Business Days
  • GM 88909774
    FUSE, MAXI(60 AMP)(BLUE(PART OF 14)
    $3.96
    $2.22
    Ships in 1-3 Business Days
  • GM 15305191
    FUSE, MEGA(175 AMP)(BLACK W/SIZE STAMPED IN WHITE ON CASE(GLOW PLUG)
    $12.41
    $7.92
    Ships in 1-3 Business Days
  • GM 12092079
    FUSE, MINI(10 AMP)(RED)(QTY 10(PART OF 14)
    Require Quantity: 20
    Package Quantity: 1
    $6.16
    $3.45
    Ships in 1-3 Business Days
  • GM 88909754
    FUSE, MINI(15 AMP)(BLUE)(QTY 25(PART OF 14)
    Require Quantity: 17
    Package Quantity: 1
    $3.16
    $1.77
    Ships in 1-3 Business Days
  • GM 88861352
    FUSE, MINI(20 AMP)(YELLOW)(QTY 25(PART OF 14)
    Require Quantity: 07
    Package Quantity: 1
    $3.24
    $1.81
    Ships in 1-3 Business Days
  • GM 88909756
    FUSE, MINI(25 AMP)(CLEAR)(QTY 25(PART OF 14)
    Require Quantity: 04
    Package Quantity: 1
    $5.00
    $2.80
    Ships in 1-3 Business Days
  • GM 12092075
    FUSE, MINI(30 AMP)(GREEN)(QTY 5(PART OF 14)
    Require Quantity: 07
    Package Quantity: 1
    $2.92
    $1.64
    Ships in 1-3 Business Days
  •  
    HARNESS, Chassis Wiring Make Sure These Fit  
  • GM 15746765
    HARNESS, EMERGENCY VEHICLE ROOF LAMP RELAY WIRING(INCLUDES 11)
    Fitting Vehicle Options: CK1,2,359(5Y0)
    $105.42
    $67.30
    Ships in 1-3 Business Days
  • GM 15759579
    HARNESS, EMERGENCY VEHICLE ROOF LAMP RELAY WIRING(INCLUDES 11)
    Fitting Vehicle Options: CK360,364(5Y0)
    $103.05
    $65.79
    Ships in 1-3 Business Days
  • GM 11509226
    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
    Ships in 1-3 Business Days
  •  
    RELAY, A/C Electrical Make Sure These Fit  
  • GM 12177233
    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
    $27.65
  • GM 19116057
    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
    Ships in 1-2 Business Days
  •  
    RELAY, Capsule/Headlamp/Fog Lamp Make Sure These Fit  
  • GM 19116057
    RELAY, HEADLAMP HIGH BEAM(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.483)
    $16.96
    $9.49
    Ships in 1-2 Business Days
  • GM 19116057
    RELAY, HEADLAMP LOW BEAM(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.483)
    $16.96
    $9.49
    Ships in 1-2 Business Days
  •  
    RELAY, Chassis/Body Marker/Hazard Make Sure These Fit  
  • GM 12177233
    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
    $27.65
  • GM 12135194
    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
    $44.09
  • GM 12177233
    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
    $27.65
  • GM 12135005
    RELAY, EMERGENCY VEHICLE ROOF LAMP(PART OF 12)(W/BRACKET)(2.694)
    Fitting Vehicle Options: CK1,2,359(5Y0)
    Replaced by: 12193601
    $49.39
    $27.65
    Ships in 1-3 Business Days
  •  
    RELAY, Fuel Pump Make Sure These Fit  
  • GM 12177233
    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
    $27.65
  • GM 19116057
    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
    Ships in 1-2 Business Days
  •  
    RELAY, Headlamp/Fog Lamp/Turn Signal Make Sure These Fit  
  • GM 19116057
    RELAY, DAYTIME RUNNING LAMP(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.483)
    $16.96
    $9.49
    Ships in 1-2 Business Days
  • GM 19116058
    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
    Ships in 1-2 Business Days
  • GM 19116057
    RELAY, FOG LAMP(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.483)
    $16.96
    $9.49
    Ships in 1-2 Business Days
  • GM 19116057
    RELAY, Horn
    RELAY,HORN(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.483)
    $16.96
    $9.49
    Ships in 1-2 Business Days
  • GM 12177236
    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
    $5.36
  • GM 12177236
    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
    $5.36
  •  
    RELAY, Voltage and Glow Plug Make Sure These Fit  
  • GM 19116057
    RELAY, FOG LAMP(PART OF 14)(GRAY)(35AMP)(4-TERMINAL)(HIGH CURRENT MICRO RELAY)(2.483)
    $16.96
    $9.49
    Ships in 1-2 Business Days
  • GM 12177236
    RELAY, IGNITION(4 TERMINAL)(PART OF 14)(GRAY)(SPST 280 MINI)(4-WAY)(SQUARE CASE)(W/RESISTOR)(9.778)
    Replaced by: 13503102
    $9.58
    $5.36
Genuine GM Parts, the Right Choice
GMPartsGiant.com offers the lowest prices for genuine 2003 Chevrolet Silverado 1500 HD 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.