Engine Kits & Rotating Assemblies

Repair Kit, Top End, 75.47mm Bore, 8.60 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50003-4K

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 66.34mm Bore, 8.70 to 1 Compression Ratio, Suzuki, Kit

Part Number: NTI-NX-30027K

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50011-4K

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50011-6K

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50012-2K

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-40013-CK

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Repair Kit, Top End, 83.44mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002-2K

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• 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: Jan 16, 2026 if ordered today

• Drop Ship
• Special Order

VERTEX PISTON KIT

Part Number: VPX-24264B

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

VERTEX PISTON KIT-FORGED

Part Number: VPX-24265B

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

VERTEX PISTON KIT

Part Number: VPX-23965A

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

VERTEX PISTON KT HC FORGED

Part Number: VPX-24028A

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

VERTEX PISTON KIT

Part Number: VPX-24259050

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22584B-2

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22803B

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22809B

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22854B

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22926B-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

VERTEX TOP END PISTON KIT

Part Number: VPX-VTK23430CD

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

VERTEX TOP END PISTON KIT

Part Number: VPX-VTKTC23623B

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-30015K

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

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

Part Number: NTI-NX-40025-CK

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• 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: Dec 29, 2025 if ordered today

• Free Shipping
• Special Order

Repair Kit, Top End, 74.45mm Bore, 8.90 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10005-2K

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Special Order

Repair Kit, Top End, 68.45mm Bore, 9.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10027K

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Special Order