2003 Holley Parts and Accessories

Alternators, Premium, OE Style, Cast Aluminum, Natural Finish, 150 amps, 12V, Internal Regulator, Serpentine Pulley, Chevy, 4.8-7.0L, Each

Part Number: HLY-197-302

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Air Cleaners, Retrofilter, Drive-By-Wire, 14 in. Round, Dual Snorkel, Aluminum, Black, Cotton Gauze Filter, Red, GM LS 4-Bolt 92mm Throttle Body, Kit

Part Number: HLY-120-521

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Accessory Belt Tensioners, Holley, Replacement, Tensioner Assembly, Cast Aluminum, Smooth Pulley, for LS Accessory Drives Only, GM, LS, 4.8-7.0L, Each

Part Number: HLY-97-179

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Power Steering Reservoirs, Remote Style, Composite, Black, Chevy, 4.8L, 5.3L, 6.0L, Each

Part Number: HLY-198-200

4.85 out of 5 stars ( 20 )

Estimated Ship Date: Today

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Valve Covers, LS Ford Style, Cast Aluminum, Center Bolt, Plain, Cast Aluminum, Black Finish, Two-Piece, Chevy, LS, 4.8-7.0L, Pair

Part Number: HLY-241-187

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Computer Mounting Brackets, Holley EFI, HP, Terminator, Terminator X, ECU Mount Bracket, Steel, Black, Passenger Seat, Ford, Mustang, Fox Body, Each

Part Number: HLY-554-157

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

Power Steering Brackets, Mid LSA/LS, Accessory Drive Bracket, Power Steering, Aluminum, Satin Finish, Chevy, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Kit

Part Number: HLY-20-165

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Oil Pan Baffles, Replacement, LS Swap, Retrofit, Aluminum, Natural Finish, for Holley 302-3, Chevy, 4.8L, 5.3L, 6.0L, Kit

Part Number: HLY-302-12

5.0 out of 5 stars ( 2 )

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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

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Throttle Body, Sniper EFI, Multi-port Injection, 85mm Bore, Billet Aluminum, Silver Anodized, Cable Operated, Chevy, 4.8-6.0L, Each

Part Number: SNE-860023

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

Part Number: HLY-20-155

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

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

Part Number: HLY-21-1

4.25 out of 5 stars ( 8 )

Estimated Ship Date: Today

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 )

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Throttle Bodies, LS Style, Multi-Port Injection, Cable Actuated, 1 Venturi, 95mm, Billet Aluminum, Black Anodized, Chevy, 4.8-7.0L, LS Based, Each

Part Number: HLY-112-585

4.2 out of 5 stars ( 5 )

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Intake Manifolds, EFI, Hi-Ram, Multi-port, Top Only, 95mm Bore, Cast Aluminum, Satin Finish, Chevy, LS, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L,Each

Part Number: HLY-300-245

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Fuel Rails, EFI Hi-Flow Billet Fuel Rails, Billet Aluminum, Black Anodized, -8 AN O-ring Inlet Size, Holley Hi-Flow, Chrysler, Dodge, Jeep, Ram, Kit

Part Number: HLY-534-284

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Ignition Coil Brackets, Holley EFI, Gen III, LS Ignition Coil, Remote Relocation Bracket, Aluminum, Black Finish, Hardware Included, Pair

Part Number: HLY-561-128

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Fuel Rails, Sniper EFI, Billet Aluminum, Black Anodized, -8 AN Inlet, Hardware, Fittings, for Original Stock Intakes, Chevy, LS, 5.7L, 6.0L, Kit

Part Number: SNE-850005

3.35 out of 5 stars ( 17 )

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Valve Covers, Aluminum LS, Centerbolt, Tall, Plain, Cast Aluminum, Polished Finish, Chevy, LS, 4.8-7.0L, Pair

Part Number: HLY-241-111

4.55 out of 5 stars ( 11 )

Estimated Ship Date: Today

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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-241-88

4.38 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Weatherproof Connectors, Holley EFI, GM LSx Engine, Main Harness Connectors, Connectors, Pins, Seals, Cavity Plugs included, Kit

Part Number: HLY-570-103

5.0 out of 5 stars ( 1 )

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Water Pumps, Mechanical, Standard-volume, Counterclockwise Rotation, Aluminum, Natural Finish, Forward Inlet, Mid-belt, Chevy, LS, 4.8-7.0L, Each

Part Number: HLY-22-100

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Power Steering Pulleys, Holley, Replacement, 6-groove, LS Serpentine, Press-fit, Steel, Black, 6.70 in. OD, 0.66 in. Bore, for Saginaw Pump, Each

Part Number: HLY-97-152

3.6 out of 5 stars ( 10 )

Estimated Ship Date: Today

Valve Cover Fasteners, Holley EFI, Tall LS Valve Cover Bolts, Polished, Aluminum, Hex Head, 6mm x 1.0 Thread, Hardware, 8-piece, Chevy, 4.8-7.0L, Set

Part Number: HLY-561-134

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Valve Covers, LS Ford Style, Cast Aluminum, Center Bolt, Plain, Cast Aluminum, Polished Finish, Two-Piece, Chevy, LS, 4.8-7.0L, Pair

Part Number: HLY-241-186

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