Engine Kits & Rotating Assemblies

Repair Kit, Top End, 84.420mm Bore, 9.10 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40008K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Repair Kit, Top End, 100.470mm Bore, 9.20 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40010-2K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Repair Kit, Top End, 100.670mm Bore, 9.20 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40010-4K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Repair Kit, Top End, 84.950mm Bore, 10.00 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40011-2K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NA-10027-4K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 76.950mm Bore, 13.50 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20031K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

TOP END GASKET KIT, TOP END REPAIR KIT

Part Number: NTI-NX-70029-BK3

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NX-70051K2

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NX-40026-CK

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Special Order

TOP END GASKET KIT, TOP END REPAIR KIT (FORGED PISTON)

Part Number: NTI-FX-40032K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

TOP END GASKET KIT, TOP END REPAIR KIT (FORGED PISTON)

Part Number: NTI-FX-40033-BK

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Repair Kit, Top End, 78.46mm Bore, 8.80 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10007K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 68.70mm Bore, 9.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10027-1K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 76.45mm Bore, 8.20 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NA-20000-2K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NA-20036K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Repair Kit, Top End, 84.96mm Bore, 9.30 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NA-20075K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• 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 12, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 66.350mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40025KA

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 82.96mm Bore, 9.00 to 1 Compression Ratio, Arctic Cat, Suzuki, Kit

Part Number: NTI-NA-30010-4K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-30014K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Repair Kit, Top End, 84.450mm Bore, 10.00 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40011K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Repair Kit, Top End, 101.970mm Bore, 9.40 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40012K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

TOP END KIT HYPERDRYVE 102.97/STD YAM

Part Number: NTI-NA-40025K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Repair Kit, Top End, 83.94mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002-4K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 84.44mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002-6K

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Special Order