Availability
Engine Rotating Assemblies & Rebuild Kits
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-50019-6K
Not Yet Reviewed
Estimated Ship Date: Apr 9, 2026 if ordered today
Estimated Ship Date: Apr 9, 2026 if ordered today
CYLINDER, CYL WORKS STD BORE KIT CRF450R
Part Number: CLW-10002-K02
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
BIG BORE KIT
Part Number: CLW-61002-K02
Not Yet Reviewed
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Cylinder Kit, Forged Piston, Standard Bore, for use on Honda®, 12.50 to 1 Compression Ratio, Kit
Part Number: CLW-10002-K01HC
Not Yet Reviewed
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
STD BORE KIT
Part Number: CLW-10006-K02
Not Yet Reviewed
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
CYL WORKS BIG BORE KIT YZ450F
Part Number: CLW-21005-K02
Not Yet Reviewed
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
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: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Top End Engine Kits RAPTOR +3MM BIG BORE KIT RAPTOR +3MM BIG BORE KIT
Part Number: CLW-21004-K02
Not Yet Reviewed
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Rebuild Kit, Complete Bottom End, KTM, 144 SX, 150 SX, 150 XC, Kit
Part Number: HRI-CBK0063
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Top End Engine Kits CYL WORKS STD BORE KIT POLARIS CYL WORKS STD BORE KIT POLARIS 800 SPORSTMAN/RZR/RANGER
Part Number: CLW-60002-K01
Not Yet Reviewed
Estimated Ship Date: Apr 7, 2026 if ordered today
Estimated Ship Date: Apr 7, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NA-30050K1
Not Yet Reviewed
Estimated Ship Date: Apr 9, 2026 if ordered today
Estimated Ship Date: Apr 9, 2026 if ordered today
Repair Kit, Top End, 86.98mm Bore, 9.80 to 1 Compression Ratio, for use on Honda®, Kit
Part Number: NTI-NA-10042-2K
Not Yet Reviewed
Estimated Ship Date: Apr 9, 2026 if ordered today
Estimated Ship Date: Apr 9, 2026 if ordered today
Engine Rotating Assembly, Street/Strip, Cast Crank, Forged Pistons, I-Beam Rods, Chevy, Small Block, Kit
Part Number: ESP-B13021E060
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pro LS Rotating Assembly, 332 Cid., 3.820 bore, Standard 3.622 stroke, 58x, 6.125 rod, 7cc dish, 9.9:1 @ 61cc, 9.4:1 @ 65cc, File-Fit Rings, H Bearing
Part Number: SUM-R5836L8207
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
COMPLETE BOTTOM END KT
Part Number: HRI-CBK0191
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
VERTEX TOP END PISTON KIT
Part Number: VPX-VTKTC24258
Not Yet Reviewed
Estimated Ship Date: Apr 7, 2026 if ordered today
Estimated Ship Date: Apr 7, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NA-50024-6K
Not Yet Reviewed
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NX-70001-BK
Not Yet Reviewed
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Rebuild Kit, Complete Bottom End, for use on Honda®, CRF450R, Kit
Part Number: HRI-CBK0124
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Rebuild Kit, Complete Bottom End, Yamaha, YFM660F, YXR66F, Kit
Part Number: HRI-CBK0152
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
BOTTOM END KIT Polaris
Part Number: HRI-HR00116
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NA-50024K
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NX-70000K
Not Yet Reviewed
Estimated Ship Date: Apr 7, 2026 if ordered today
Estimated Ship Date: Apr 7, 2026 if ordered today
Repair Kit, Top End, 85.470mm Bore, 11.00 to 1 Compression Ratio, for use on Honda®, Kit
Part Number: NTI-NA-10003-2K
Not Yet Reviewed
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
STANDARD BORE CYLINDER KIT
Part Number: CLW-30006-K02
Not Yet Reviewed
Estimated Ship Date: Apr 9, 2026 if ordered today
Estimated Ship Date: Apr 9, 2026 if ordered today
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