2003 Holley Parts and Accessories

Wiring Harnesses, Holley EFI, Main Harness, 24X LS TBI, for Terminator, Terminator Stealth, Throttle Body Systems, Chevy, Each

Part Number: HLY-558-111

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Weatherproof Connectors, Holley EFI, Hemi Cam/Crank Connector, Main Harness, APEX 1.2, 3-pin, Female, Black Plastic, with Pins, Seals, TPA, Each

Part Number: HLY-570-234

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Estimated Ship Date: Tomorrow

Timing Covers, Replacement, Cast Aluminum, Black Finish, for Mid-Mount Accessory Drive 20-291BK, 20-293BK, Gen III, Hemi, VVT, 5.7L, 6.4L, Each

Part Number: HLY-97-375

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Timing Covers, Replacement, Cast Aluminum, Black Finish, for Mid-Mount Accessory Drive 20-290BK, 20-292BK, Gen III, Hemi, Non-VVT, 5.7L, 6.1L, Each

Part Number: HLY-97-373

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Weatherproof Connectors, Holley EFI, LS1 Knock Sensor Connector, Main Harness, Metripack, 2-pin Female, Black Plastic, with Pins, Seals, TPA, Each

Part Number: HLY-570-219

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Valve Covers, Aluminum LS, Centerbolt, Plain Top, Cast Aluminum, Polished, Baffled, Chevy, LS, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Pair

Part Number: HLY-241-90

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Mar 3, 2026 if ordered today

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Water Pump Housings, Replacement, Cooling Manifold, Cast Aluminum, Satin Finish, for Mid-Mount Accessory System, 20-242, Chevy, 4.8-7.0L, Each

Part Number: HLY-97-307

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Weatherproof Connectors, Holley EFI, LS 58X Crank/CPS Sensor Connectors, Metripack, 3-pin, Female, Black, with Pins, Seals, TPA, 10-piece, Chevy, Set

Part Number: HLY-570-318

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Accessory Brackets, LS Engine, Cast Aluminum, Black Finish, Alternator, Power Steering, Chevy, LS, 4.8-7.0L, Kit

Part Number: HLY-20-155BK

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Harmonic Balancers, Replacement, OE Style Damper, Iron, Black, 5.23 in. Height, for Mid-Mount Accessory Drive, Gen III, Hemi, Non-VVT Engine, Each

Part Number: HLY-97-362

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Hardware Kits, Replacement, Black Finish, Bolt Set, Intake Manifold Installation, EFI 4500, Model 300-294, 295, Chevy, 4.8L, 5.3L, 5.7L, 6.0L, Kit

Part Number: HLY-508-42

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Intake Manifold Adapters, LS Modular, Mid-Rise Intake, Adapter Plate, Cathedral Port Head, Aluminum, Satin Finish, Fasteners, Chevy, LS, 4.8-7.0L, Kit

Part Number: HLY-300-267

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Estimated Ship Date: Tomorrow

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Air Conditioning Compressor Brackets, for R4 Compressor, Aluminum, Black, Chevy, Small Block LS, Each

Part Number: HLY-20-133BK

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Weatherproof Connectors, Holley EFI, Hemi, MAP Sensor Connector, Sealed, 3-pin, Female, Black Plastic, with Pins, Seals, TPA, Each

Part Number: HLY-570-240

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Weatherproof Connectors, Holley EFI, Hemi CTS Connector, Main Harness, 1.5mm YESC, 2-pin, Female, Black Plastic, with Pins, Seals, TPA, Each

Part Number: HLY-570-233

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Engine Accessory Bracket Components, Engine Accessory, R4 Tensioner, Spacer, Aluminum, Cast Finish, Chevy, 4.8-7.0L, LS Based, Kit

Part Number: HLY-21-7

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Weatherproof Connectors, Holley EFI, Ford Modular, CTS Connector, Main Harness, SSC, 2-pin, Female, Black Plastic, with Pins, Seals, TPA, Each

Part Number: HLY-570-236

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Estimated Ship Date: Tomorrow

Weatherproof Connectors, Holley EFI, Modular/Coyote, Knock Sensor Connector, Main Harness, MX 150, 6-pin Male, Black Plastic, Pins, Seals, TPA, Each

Part Number: HLY-570-225

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Weatherproof Connectors, Holley EFI, Ford Modular/Coyote, Manifold Air Temp Connector, SSC, 2-pin, Female, Gray Plastic, with Pins, Seals, TPA, Each

Part Number: HLY-570-237

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Weatherproof Connectors, Holley EFI, Ford Modular/Coyote, Idle Air Control Connector, SSC, 2-pin, Female, Black Plastic, with Pins, Seals, TPA, Each

Part Number: HLY-570-238

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Weatherproof Connectors, Holley EFI, Hemi, Air Temperature Sensor Connector, Main Harness, Molex 2-pin, Female, Black Plastic, Pins, Seals, TPA, Each

Part Number: HLY-570-227

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Estimated Ship Date: Tomorrow

Throttle Body Spacer, Sniper, Billet Aluminum, 92mm Bore, 0.375 in. Thick, Black Anodized, for Sniper EFI Fabricated Intakes, Chevy, 4.8-7.0L, Each

Part Number: SNE-860012

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Weatherproof Connectors, Holley EFI, Hemi, CTS Connector, Main Harness, Molex 2-pin, Female, Black Plastic, includes Pins, Seals, TPA, Each

Part Number: HLY-570-228

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Fuel Injection Systems, Terminator X Max, Stealth 4150, 58X LS EFI, Four Injector, Throttle Body, Aluminum, Shiny, Trans Control, Chevy, 4.8-7.0L, Kit

Part Number: HLY-550-1063

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Estimated Ship Date: Tomorrow

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Engine Management Systems, Terminator X, Up to 8-EV1 Injectors, 8-Coils, Analog, O2 Sensor, Plug-and-Play, USB Tuning Cable, Ford, 4.6L, 5.4L, Kit

Part Number: HLY-550-1220

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Estimated Ship Date: Tomorrow

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