Availability
YAMAHA Engines & Components
Pro-X Racing Parts Piston Kits for 2018-2019 WR250F, 2016-2018 YZ250F, 2017-2019 YZ250FX - 01.2417.A
Pro-X Racing Parts Piston Kits for 2018-2019 WR250F, 2016-2018 YZ250F, 2017-2019 YZ250FX - 01.2417.A
ProX Piston Kit YZ250F '16-18 /250FX '17-19 13.5:1 (76.95mm)
Part Number: PXR-01-2417-A
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
ProX Valve Shim 7.48 x 2.475 mm. (5 pcs.)
Part Number: PXR-29-748247-5
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
ProX Valve Shim 9.48 x 1.45 mm. (5 pcs.)
Part Number: PXR-29-948145
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Piston and Ring Kit, Forged Aluminum, 81.500mm Bore, Yamaha, Kit
Part Number: WIS-791M08150
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Repair Kit, Top End, 47.500mm Bore, 6.60 to 1 Compression Ratio, Yamaha, Kit
Part Number: NTI-NX-40008-2K
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NA-40007K
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NX-40000-CK1
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
RING KIT
Part Number: NTI-NX-40005R
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Piston and Ring Kit, Forged Aluminum, 83.500mm Bore, Yamaha, Kit
Part Number: WIS-PK1019
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 2026 if ordered today
Piston and Ring Kit, Forged Aluminum, 77.000mm Bore, Yamaha, Kit
Part Number: WIS-PK1844
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 2026 if ordered today
Piston and Ring Kit, Forged Aluminum, 66.750mm Bore, Yamaha, Kit
Part Number: WIS-PK1092
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 2026 if ordered today
Repair Kit, Top End, 53.940mm Bore, 8.90 to 1 Compression Ratio, Yamaha, Kit
Part Number: NTI-NX-40000K1
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Repair Kit, Top End, 46.95mm Bore, Yamaha, Kit
Part Number: NTI-NX-40080K
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
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: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
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: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Repair Kit, Top End, 66.370mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit
Part Number: NTI-NX-40025-CKA
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Piston Rings, Chrome, 73.00mm Bore, for use on Honda®, Kawasaki, Suzuki, Yamaha, Set
Part Number: WIS-2874XC
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 2026 if ordered today
Piston and Ring Kit, Forged Aluminum, 67.500mm Bore, Yamaha, Kit
Part Number: WIS-PK1095
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 2026 if ordered today
STD BORE CYLINDER
Part Number: CLW-20003
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
ProX Valve Shim 7.48 x 2.425 mm. (5 pcs.)
Part Number: PXR-29-748242-5
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
ProX Valve Shim 9.48 x 2.50 mm. (5 pcs.)
Part Number: PXR-29-948250
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Standard Bore Cylinder, CYLINDER ONLY 97.00/STD YAM
Part Number: CLW-CW20012
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
CAM CHAIN
Part Number: HCP-S0035
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Top-End Piston Kit, Cast Aluminum, 64.750mm Bore, Yamaha, Kit
Part Number: VPX-VTK22568075
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 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 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
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