JR Race Car Engines & Components

Extended Oil Plug, Knurled Head, O-Ring, 3/8 in.-18 NPT, Red Anodized, Briggs, Each

Part Number: JRC-555-8997-RED

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Estimated Ship Date: Dec 15, 2025 if ordered today

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HEAD STUD KIT W/O O-RING

Part Number: JRC-322-3459

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Estimated Ship Date: Dec 15, 2025 if ordered today

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HEAD STUD O-RING KIT

Part Number: JRC-322-3571

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Estimated Ship Date: Dec 15, 2025 if ordered today

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HEAD STUD SPACER & O-RING KIT

Part Number: JRC-322-3572

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Estimated Ship Date: Dec 15, 2025 if ordered today

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ZR 4 1.750 TI INT VALVE 1/4 STEM

Part Number: JRC-ZRC-4205

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Estimated Ship Date: Dec 15, 2025 if ordered today

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ZR 4 1.875 TI INT VALVE 1/4 STEM

Part Number: JRC-ZRC-4210

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ZR 4 CAMSHAFT 128

Part Number: JRC-ZRC-4ZR128

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ZR 4 CAMSHAFT 129

Part Number: JRC-ZRC-4ZR129

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ZR 2/3 CAMSHAFT 121

Part Number: JRC-ZRC-5ZR121

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ZR 2/3 CAMSHAFT 123

Part Number: JRC-ZRC-5ZR123

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Extended Oil Plug, Knurled Head, O-Ring, 3/8 in.-18 NPT, Blue Anodized, Briggs, Each

Part Number: JRC-555-8997-BLU

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Piston and Rings, Cast Aluminum, Flat Top, 2.776 in. Bore, Kit

Part Number: JRC-954-2089

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Oil Vent Plug, 5/8 in.Hose Barb, 3/8 in.-18 NPT, Seal, Red Anodized, Briggs, Each

Part Number: JRC-555-8998-RED

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Extended Oil Plug, Knurled Head, O-Ring, 3/8 in.-18 NPT, Blue Anodized, Briggs, Each

Part Number: JRC-555-9000BLU

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Long Billet Oil Plug, Knurled Head, O-Ring, 3/8 in.-18 NPT, Blue Anodized, Briggs, Each

Part Number: JRC-555-9002LBL

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Long Billet Oil Plug, Knurled Head, O-Ring, 3/8 in.-18 NPT, Black Anodized, Briggs, Each

Part Number: JRC-555-9002LBLK

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Long Billet Oil Plug, Knurled Head, O-Ring, 3/8 in.-18 NPT, Red Anodized, Briggs, Each

Part Number: JRC-555-9002LRED

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Short Billet Oil Plug, Knurled Head, O-Ring, 3/8 in.-18 NPT, Blue Anodized, Briggs, Each

Part Number: JRC-555-9002SBL

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Short Billet Oil Plug, Knurled Head, O-Ring, 3/8 in.-18 NPT, Red Anodized, Briggs, Each

Part Number: JRC-555-9002SRED

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Estimated Ship Date: Dec 15, 2025 if ordered today

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ZR4 HEAD JR .530 DEEP CHAMBER

Part Number: JRC-ZRC-2510

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ZR4 HEAD JR .580 DEEP CHAMBER

Part Number: JRC-ZRC-2515

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VALVE LOCKS

Part Number: JRC-588-GP642-2

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Estimated Ship Date: Dec 15, 2025 if ordered today

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1.250 EXHAUST VALVE

Part Number: JRC-651-62091804

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Estimated Ship Date: Dec 15, 2025 if ordered today

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1.500 INTAKE VALVE

Part Number: JRC-651-62141800

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Estimated Ship Date: Dec 15, 2025 if ordered today

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.Piston Rings, 2.562 in. Bore, Jr. Race Car, Set

Part Number: JRC-952-2562XM

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Estimated Ship Date: Dec 15, 2025 if ordered today

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