CHEVROLET Chevy small block Gen III/IV (LS-based engines) Parts and Accessories

Transmission Harnesses, Holley EFI, Control Harness, F-Body, T-56 Tranny, Plug-and-Play, VSS, Reverse Lockout, for Terminator X, Max X ECUs, Each

Part Number: HLY-558-481

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

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Thermostat, with Seal, 160 Degrees F, Stainless Steel, Each

Part Number: SNN-523-160

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/12/2026

Thermostat, with Seal, 160 Degrees F, Stainless Steel, Each

Part Number: SNN-456-160

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 1/12/2026

Tester Adapter, Cooling System, Steel, Green, Buick, Chevy, Ford, GMC, Each

Part Number: SNN-3127

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Estimated Ship Date: Monday 1/12/2026

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Thermostat, Mechanical, Thermostat with Seal, Standard-flow, 180 degrees F, Copper/Stainless Steel, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Each

Part Number: SNN-523-180

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/12/2026

Thermostat, with Seal, 187 Degrees F, Stainless Steel, Each

Part Number: SNN-456-187

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/12/2026

Radiator Cap, Lev-R-Vent, Stainless Steel, Natural, Stant, 18 psi, Cadillac, Chevy, Chrysler, Dodge, Jeep, Pontiac, Each

Part Number: SNN-ST18

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/12/2026

Tester Adapter, Cooling System, Steel, Green, Chevy, Saab, Ford, GMC, Each

Part Number: SNN-3128

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

Wiring Harnesses, Holley EFI, LS2/3/7, 58X/4X, Main Harness, Plug-and-Play, Extended Length, for Dominator/HP EFI Systems, Chevy, 6.0-7.0L, Each

Part Number: HLY-558-134

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Estimated Ship Date: Monday 1/12/2026

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Fuel Tank Cap, Locking, Plastic, Black, For use on Honda®, Chevy, Mazda, Nissan, Toyota, Each

Part Number: SNN-MGC791

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/12/2026

Hoses and Lines, Power Steering, -6 AN, Steel, Zinc Plated, Banjo Bolt, Crush Washers, Chevy, 6.2L, Saginaw Type II, LSA Accessory Drive, Each

Part Number: HLY-198-207

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

Fuel Rail Fasteners, Lo-Ram Manifold, LS Series, Aluminum Brackets, Black, Kit

Part Number: HLY-534-262

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

Wiring Harness, Elite 2000/2500 GM Gen III LS1/LS6, DBW Reaady Terminated Harness, Each

Part Number: HTH-HT-141362

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

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Thermostat, Integrated Housing Thermostat, 187 Degrees F, Stainless Steel, Each

Part Number: SNN-379-187

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/12/2026

Throttle Body Spacer, Billet Aluminum, Black Anodized, 1 in., Cadillac, Chevy, GMC, Pontiac, Each

Part Number: AID-200-617

4.33 out of 5 stars ( 40 )

Estimated Ship Date: Monday 1/12/2026

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Fuel Tank Cap, OE Replacement, Plastic, Black, Each

Part Number: SNN-MGC817

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/12/2026

Radiator Cap, Stainless Steel, Natural, Stant, 18 psi, Cadillac, Chevy, Chrysler, Dodge, Jeep, Pontiac, Each

Part Number: SNN-T18

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

Oil Filler Cap, Plastic, Black, Twis-In, Chevy, Buick, Cadillac, Chrysler, GMC, Saab, Each

Part Number: SNN-MO99

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

Engine Accessory Bracket Components, Replacement, LSA Supercharged Accessory Drive, Bolt Kit, Steel, Nickel Finish, Chevy, 6.2L, Kit

Part Number: HLY-97-263

Not Yet Reviewed

Estimated Ship Date: Jan 28, 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

Not Yet Reviewed

Estimated Ship Date: Jan 28, 2026 if ordered today

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Hardware Kits, Split Intake Manifold, O-rings, Cord, Hardware, Natural Finish, Intake 300-255, 300-256, 300-290, 300-291, Chevy, LS, 6.2L, Kit

Part Number: HLY-508-33

Not Yet Reviewed

Estimated Ship Date: Jan 28, 2026 if ordered today

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Fuel Tank Cap, OE Replacement, Plastic, Black, Buick, Chevy, GMC, Toyota, Each

Part Number: SNN-MGC825

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/12/2026

Wiring Harness, Elite 2000/2500 GM Gen IV LS/LSX, Non-DBW Terminated Harness, Bosch EV6, Each

Part Number: HTH-HT-141365

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

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Wiring Harness, Elite 2000/2500 GM Gen III LS1/LS6, Non-DBW Terminated Harness, Each

Part Number: HTH-HT-141360

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

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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

Not Yet Reviewed

Estimated Ship Date: Jan 28, 2026 if ordered today

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