Availability
2012 Engine Kits & Rotating Assemblies
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: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NA-10027-4K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
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: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Repair Kit, Top End, 92.47mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit
Part Number: NTI-NA-50004-2K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Repair Kit, Top End, 92.97mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit
Part Number: NTI-NA-50004-4K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Repair Kit, Top End, 83.950mm Bore, 9.50 to 1 Compression Ratio, Yamaha, Kit
Part Number: NTI-NA-40005-4K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Repair Kit, Top End, 79.950mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit
Part Number: NTI-NA-50080K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
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: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Repair Kit, Top End, 89.98mm Bore, 9.90 to 1 Compression Ratio, for use on Honda®, Kit
Part Number: NTI-NA-10043-2K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
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: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NA-20065-4K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Repair Kit, Top End, 79.96mm Bore, 9.90 to 1 Compression Ratio, Arctic Cat, Kawasaki, Kit
Part Number: NTI-NA-20065K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Repair Kit, Top End, 83.000mm Bore, 8.60 to 1 Compression Ratio, Yamaha, Kit
Part Number: NTI-NA-40006K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-50019K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-50019-4K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-50019-6K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-30015-CK
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head NAMURA TOP END REPAIR KIT NAMURA TOP END REPAIR KIT
Part Number: NTI-NA-20005K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-50026K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-10012-4K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-10012-6K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-50026-2K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-10012K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-10014-2K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-10046K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster