Engine Rotating Assemblies & Rebuild Kits

Repair Kit, Top End, 44.450mm Bore, 8.40 to 1 Compression Ratio, Kawasaki, Suzuki, Kit

Part Number: NTI-NX-20065-BK

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

• Special Order

Repair Kit, Top End, 44.450mm Bore, 8.40 to 1 Compression Ratio, Kawasaki, Suzuki, Kit

Part Number: NTI-NX-20065K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

• Special Order

Repair Kit, Top End, 46.95mm Bore, Yamaha, Kit

Part Number: NTI-NX-40080K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

• Special Order

Repair Kit, Top End, 53.95mm Bore, 8.30 to 1 Compression Ratio, Suzuki, Kit

Part Number: NTI-NX-30002K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

• Special Order

TOP END REPAIR KIT

Part Number: NTI-NX-40008K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 42.950mm Bore, 8.40 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20060K

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

• Special Order

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50006-2K

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

TOP END REPAIR KIT

Part Number: NTI-NA-30050K1

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

• Special Order

Top End Engine Kit, Sidewinder Big Bore, Black Wrinkle Finish, 4 in., Forged Piston, Harley-Davidson®, Kit

Part Number: SSY-910-0651

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

• Free Shipping

Repair Kit, Top End, 82.950mm Bore, 9.50 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40005K

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

Repair Kit, Top End, 83.500mm Bore, 8.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40006-2K

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

Repair Kit, Top End, 91.96mm Bore, 9.20 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10008K

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

• Free Shipping

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-10012-2K

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

• Free Shipping

Cylinder Head NAMURA TOP END REPAIR KIT NAMURA TOP END REPAIR KIT

Part Number: NTI-NA-20005-2K

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

• Free Shipping

Repair Kit, Top End, 84.98mm Bore, 9.30 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NA-20075-CK

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

• Free Shipping

TOP END REPAIR KIT

Part Number: NTI-NA-50024K

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

TOP END REPAIR KIT

Part Number: NTI-NA-50070-BK1

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

• Free Shipping

Repair Kit, Top End, 79.960mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50080-BK

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

• Free Shipping

Repair Kit, Top End, 67.35mm Bore, 8.60 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20025-4K

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

Cylinder Kit, Forged Aluminum, 3.00mm Oversize Bore, Yamaha, Set

Part Number: CLW-21003-K02

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

• Free Shipping

Rebuild Kit, Complete Bottom End, for use on Honda®, CR250R, Kit

Part Number: HRI-CBK0031

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

• Free Shipping

Rebuild Kit, Complete Bottom End, Kawasaki, KX125, Kit

Part Number: HRI-CBK0091

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

• Free Shipping

BOTTOM END KIT Polaris

Part Number: HRI-HR00110

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

• Free Shipping

Cylinder Kit, Forged Aluminum, Standard Bore, Yamaha, Set

Part Number: CLW-20104-K01

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

• Free Shipping

Top End Engine Kits CYL WORKS STD BORE KIT HI COMP CYL WORKS STD BORE KIT HI COMP 800 SPORSTMAN/RZR/RANGER

Part Number: CLW-60002-K02HC

Not Yet Reviewed

Estimated Ship Date: Monday 7/28/2025

• Free Shipping