2003 Holley Parts and Accessories

Fuel Pumps, Drop-In Fuel Module, Electric, In-Tank, 255 lph, 12V, Sending Unit, Stock Inlet and Outlet, Ford, Mustang, 3.8L, 3.9L, 4.6L, Each

Part Number: HLY-12-946

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Oil Pans, Gen III Hemi, Retrofit, Non-VVT, Wet Sump, Rear, 1-piece Main Seal, 6.2 Quart, Dipstick Passenger Side, Aluminum, Natural, Hardware, Each

Part Number: HLY-302-75

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Water Neck Thermostat Housings, Replacement, Aluminum, 1.50 in. Outlet, O-ring Seal, with Thermostat, for LT/LS Mid-Mount Accessory Drive Only, Each

Part Number: HLY-97-169

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Accessory Drive Bracket Spacer Kits, Aluminum, Natural Finish, Middle Alignment, Chevy, Small Block LS, Each

Part Number: HLY-21-2

5.0 out of 5 stars ( 4 )

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Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Counterclockwise, Power Steering, GM 2, Polished, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-186P

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Idler Pulleys, Holley, Serpentine Style, Black Finish, 2.75 in. Diameter, 76 mm, Smooth, Steel, for Holley LS Accessory Drive Brackets Only, Each

Part Number: HLY-97-150

5.0 out of 5 stars ( 2 )

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Intake Manifold Installation, Sniper EFI, O-Ring, Gaskets, Mounting Hardware, Stock Port, Mod-Motor Manifold, Chevy, LS, 5.47L, 6.0L, Kit

Part Number: SNE-870002

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Throttle Cable Brackets, Intake Manifold Mounting Style, Steel, Black, for Use On Holley Intake HLY-300-621, Chevrolet, Small Block LS, Each

Part Number: HLY-20-154

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Fuel Pumps, OEM Style, EFI, Electric, In-Tank, 450 lph, 60 psi, 12V, Sending Unit, 220-20 ohms, -8 AN Ports, Return Style, E85 Fuel, Dodge, Ram, Kit

Part Number: HLY-12-325

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Intake Manifolds, EFI, LS Hi-Ram, Cathedral Port Head, Multi-port, 105mm Bore, Standard Deck, Aluminum, Satin Finish, Chevy, 4.8-6.0L, Each

Part Number: HLY-300-123

4.0 out of 5 stars ( 5 )

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Fuel Pressure Regulators, GM EFI, Inline, Stainless Body, 0.375 in. Inlet, 5/16 in. and 3/8 in. Outlets, Quick-Connect, 5 micron, Paper Filter, Each

Part Number: HLY-162-590

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Valve Covers, Aluminum LS, Centerbolt, Tall, Plain, Cast Aluminum, Red Powdercoat, Glossy, Chevy, LS, 4.8-7.0L, Pair

Part Number: HLY-241-113

4.44 out of 5 stars ( 16 )

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Intake Manifolds, Dual Injection, Lo-Ram EFI, Cathedral Port Heads, Standard Deck, 105mm Bore, Aluminum, Satin Finish, Chevy, LS, 4.8-6.0L, Each

Part Number: HLY-300-624

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Intake Manifolds, LS Modular, Lo-Ram EFI, Base Only, Multi-port, -8 AN, O-ring Female, Fuel Rails, Runners, Aluminum, Black, Chevy, 4.8-6.0L, Each

Part Number: HLY-300-600BK

5.0 out of 5 stars ( 1 )

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Intake Manifolds, EFI LS Fabricated, Hi-Ram, Throttle Body, Top Only, 95mm Bore, Aluminum, Black, Chevy, LS, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Kit

Part Number: HLY-300-284

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Pulley Sets, Serpentine, LS Engine Swap Accessory Drive System, Sanden 7 A/C Only, Black Powdercoated, Chevy, V8, Kit

Part Number: HLY-20-142BK

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Power Steering Pulleys, Holley, Replacement, 6-groove, LS Serpentine, Press-fit, Steel, Black, 5.75 in. OD, 0.66 in. Bore, for GM Type 2 Pump, Each

Part Number: HLY-97-154

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Fuel Pumps, OEM Style, EFI, Electric, In-Tank, 255 lph, 60 psi, 12V, Sending Unit, 220-20 ohms, -8 AN Ports, No Return, Dodge, Ram, Trucks, Kit

Part Number: HLY-12-323

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Valve Covers, Aluminum LS, Centerbolt, Tall, Holley Logo, Cast Aluminum, Black Powdercoated, Satin Finish, Chevy, 4.8-7.0L, Pair

Part Number: HLY-241-172

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Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coil, Sensors, Trans and Tuner Controller, Chevy, LS, 5.7L, 1x Cam, 24x Crank, Kit

Part Number: HLY-550-926

4.0 out of 5 stars ( 2 )

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Accessory Drive Bracket Kits, for Sanden SD508 or SD7 Compressor, Aluminum, Polished, Chevy, Small Block LS, Kit

Part Number: HLY-20-132P

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Intake Manifolds, Fuel Injected, LS Single Plane Split-Design Race, Stock/OEM Deck, 2,500-7,000 RPM, Aluminum, Natural, Chevy, Small Block, Each

Part Number: HLY-300-255

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Intake Manifolds, LS Modular, Ultra Lo-Ram EFI, Cathedral Port Head, Multi-port, Standard Deck, 105mm Bore, Aluminum, Silver, Chevy, 4.8-6.0L, Each

Part Number: HLY-300-621

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Intake Manifolds, EFI, LS Mid-Rise, Cathedral Port Head, Multi-port, 92mm Bore, Standard Deck, Aluminum, Black Finish, Chevy, 4.8-6.0L, Each

Part Number: HLY-300-126BK

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Fuel Rails, Holley EFI, Billet Aluminum, Black Anodized, 3/4 in.-16, O-ring Inlet, Fittings, Hardware Included, Chevy, LS, 4.8-6.2L,Kit

Part Number: HLY-534-245

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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