Availability
2003 Holley Parts and Accessories
Crank Triggers, Holley EFI, 12-1X LS, Hall Effect, 6.56 in. Diameter, Aluminum, Silver, Adjustable Bracket, 3-wire Pickup, Gen III, IV, SBC, Kit
Part Number: HLY-556-176
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Pulley Sets, Serpentine, LS Engine Swap Accessory Drive System, Without A/C, Chevy, V8, Kit
Part Number: HLY-20-143
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Oil Fill Caps, LS Engine, Twist-in, Octagon Shape, Black, Plastic, Billet Aluminum Insert, Domed Holley Decal, Each
Part Number: HLY-241-224
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Accessory Drive Bracket Spacer Kits, Aluminum, Black Finish, Middle Alignment, Chevy, Small Block LS, Each
Part Number: HLY-21-2BK
Estimated Ship Date: Today
Estimated Ship Date: Today
Throttle Linkage, Sniper EFI, Dual Plenum Linkage, Aluminum, Black Anodized, 92mm Bore, Brackets, Cables, Hardware, Chevy, LS, 4.8-7.0L, Kit
Part Number: SNE-860028
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Accessory Drive Systems, LS Engine Swap, Serpentine, Black Air Conditioning Pulley, Sanden SD-7 Compressor, Tensioner, Chevrolet, Small Block LS, Kit
Part Number: HLY-20-160BK
Not Yet Reviewed
Estimated Ship Date: Mar 6, 2026 if ordered today
Estimated Ship Date: Mar 6, 2026 if ordered today
Accessory Drive Systems, LS Mid-Mount, Serpentine, Alternator, Power Steering, Water Pump, AC, Pulleys, 6-groove, Polished, Chevy, 4.8-7.0L, Kit
Part Number: HLY-20-190P
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Wiring Harnesses, Holley EFI, Ford 2V/4V Modular, Main Harness, Multi-port Fuel Injection, for HP, Dominator, EFI Systems, Ford, 4.6-5.4L, Each
Part Number: HLY-558-108
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Accessory Drive Systems, LS Mid-Mount, Serpentine, Alternator, Power Steering, Water Pump, AC, Pulleys, 6-groove, Natural Finish, Chevy, 4.8-7.0L, Kit
Part Number: HLY-20-190
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Accessory Drive Systems, LS Mid-Mount, Serpentine, Alternator, Power Steering, Water Pump, AC, Pulleys, 6-groove, Black Finish, Chevy, 4.8-7.0L, Kit
Part Number: HLY-20-190BK
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Weatherproof Connectors, Holley EFI, Hemi, Knock Sensor Connector, Main Harness, DMS 2-pin, Female, Black Plastic, includes Pins, Seals, TPA, Each
Part Number: HLY-570-230
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Accessory Drive Systems, Gen III, Hemi, Mid-Mount System, Black Finish, Serpentine, A/C, P/S, Water Pump, Hardware, Chrysler, Dodge, 5.7L, 6.2L, Kit
Part Number: HLY-20-290BK
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Valve Covers, Aluminum LS, Center and Perimeter Bolt, Tall, Finned, Cast Aluminum, Red Gloss, Two-Piece, Chevy, LS, 4.8-7.0L, Pair
Part Number: HLY-241-184
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Top Street Performance Cast Aluminum 2-Piece Valve Covers JM8082-2P
Estimated Ship Date: Today
Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Bosch O2 Sensor, Wideband, CANBUS, Ford, 4-valve, 4.6L, 5.4L, Kit
Part Number: HLY-550-617
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Engine Management Systems, HP EFI, ECU and Harness, Connects 16-Injectors, 8-Coils, Bosch O2, Wideband, Ford, Lincoln, Mercury, 2V, 4.6L, 5.4L, Kit
Part Number: HLY-550-616
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Water Pumps, Mechanical, LS Cooling Manifold, Counterclockwise, Aluminum, Black Finish, Mid-Mount Race Drive, with A/C Delete, GM, 4.8-7.0L, Each
Part Number: HLY-97-224
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Clockwise, Tensioner, SFI Damper, Natrual Finish, Chevy, 4.8-7.0L, Kit
Part Number: HLY-20-182
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Idler Pulleys, Holley, Replacement, 6-groove, LS Serpentine, Black, Plastic, 2.323 in. Diameter, for Holley LS Accessory Drive, Passenger Side, Each
Part Number: HLY-97-153
Estimated Ship Date: Today
Estimated Ship Date: Today
Power Steering Brackets, Mid LSA/LS, Accessory Drive Bracket, Power Steering, Aluminum, Black Finish, Chevy, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Kit
Part Number: HLY-20-165BK
Not Yet Reviewed
Estimated Ship Date: Mar 6, 2026 if ordered today
Estimated Ship Date: Mar 6, 2026 if ordered today
Pulley Kits, LS Swap, Serpentine, Alternator, Power Steering, A/C, Kit
Part Number: HLY-20-162P
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Valve Covers, Aluminum LS, Centerbolt, Plain Top, Cast Aluminum, Natural Finish, Baffled, Chevy, LS, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Pair
Part Number: HLY-241-92
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Accessory Drive Systems, LS Mid-Mount, Serpentine, Alternator, Water Pump, Counterclockwise, Pulleys, 6-groove, Black Finish, Chevy, 4.8-7.0L, Kit
Part Number: HLY-20-187BK
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Accessory Drive Systems, LS Engine Swap, Serpentine, Black, Air Conditioning Pulley, Compressor, Tensioner, Chevy, LS, 4.8-7.0L, Kit
Part Number: HLY-20-137BK
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-EV6 Injectors, 8-Coils, Plug-and-Play, Drive-by-Wire, Tuner/Trans Control, 4R70W, Ford, 4.6L, 5.4L, Kit
Part Number: HLY-550-1319
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection Systems, Terminator X, Stealth 4150, 58X LS EFI, Four Injector, Throttle Body, Speed Density, Aluminum, Shiny, Chevy, 4.8-7.0L, Kit
Part Number: HLY-550-1060
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
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