Engine Kits & Rotating Assemblies

Repair Kit, Top End, 54.500mm Bore, 9.00 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20001K

Not Yet Reviewed

Estimated Ship Date: Sep 2, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 47.950mm Bore, 9.50 to 1 Compression Ratio, Suzuki, Kit

Part Number: NTI-NX-30085-BK

Not Yet Reviewed

Estimated Ship Date: Sep 2, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 47.940mm Bore, 9.50 to 1 Compression Ratio, Suzuki, Kit

Part Number: NTI-NX-30085K

Not Yet Reviewed

Estimated Ship Date: Sep 2, 2025 if ordered today

• Drop Ship
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NA-10001-3K

Not Yet Reviewed

Estimated Ship Date: Sep 4, 2025 if ordered today

• Special Order

TOP END REPAIR KIT

Part Number: NTI-NA-50025-4K

Not Yet Reviewed

Estimated Ship Date: Sep 4, 2025 if ordered today

• Drop Ship
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NX-40026-CKA

Not Yet Reviewed

Estimated Ship Date: Sep 4, 2025 if ordered today

• Drop Ship
• Special Order

QB FULL TOP END SET

Part Number: QDB-56-3949

Not Yet Reviewed

Estimated Ship Date: Aug 29, 2025 if ordered today

• Drop Ship
• Special Order

QB FULL TOP END SET

Part Number: QDB-56-3960

Not Yet Reviewed

Estimated Ship Date: Aug 29, 2025 if ordered today

• Drop Ship
• Special Order

QB FULL TOP END SET

Part Number: QDB-56-3963

Not Yet Reviewed

Estimated Ship Date: Aug 29, 2025 if ordered today

• Drop Ship
• Special Order

QB FULL TOP END SET

Part Number: QDB-56-3978

Not Yet Reviewed

Estimated Ship Date: Aug 29, 2025 if ordered today

• Drop Ship
• Special Order

QB FULL TOP END SET

Part Number: QDB-56-4293

Not Yet Reviewed

Estimated Ship Date: Aug 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Repair Kit, Top End, 73.46mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50000-6K

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

• Drop Ship
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NA-50024-6K

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

• Drop Ship
• Special Order

Piston, NAMURA PISTON KIT

Part Number: NTI-NA-50081

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 66.340mm Bore, 8.70 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NX-10025K

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

• Drop Ship
• Special Order

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

Part Number: NTI-NX-20013K

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 66.420mm Bore, 6.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40003-2K

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 67.420mm Bore, 6.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40003-6K

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

• Drop Ship
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NX-20060-CK

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

• Drop Ship
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NX-30024-BK

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

• Drop Ship
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NX-30080-CK

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 66.360mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40025-BKA

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 67.94mm Bore, 10.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40026KA

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

• Drop Ship
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NX-40085-CK

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 47.44mm Bore, 8.20 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40085K

Not Yet Reviewed

Estimated Ship Date: Sep 3, 2025 if ordered today

• Drop Ship
• Special Order