2020 YAMAHA Pistons & Piston Rings

Piston Wrist Pin Retainers, Retaining Clips, Wire Lock Type, Steel, 0.049 in. Thickness, 0.709 in. Wrist Pin Diameter, for use on Honda®, KTM, Pair

Part Number: WIS-CW18

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Wrist Pin Retainer, Wire Locks, 0.591 in. Diameter, 0.039 in. Thick, Steel, Pair

Part Number: WIS-CW15

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Piston and Ring Kit, Forged Aluminum, 55.000mm Bore, Yamaha, Kit

Part Number: WIS-PK1684

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Piston Wrist Pin Retainers, Retaining Clips, Wire Lock Type, Steel, 0.039 in. Thickness, 0.630 in. Wrist Pin Diameter, for use on Honda®, KTM, Pair

Part Number: WIS-CW16

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Piston Wrist Pin Retainers, Retaining Clips, Wire Lock Type, Steel, 0.039 in. Thickness, 0.551 in. Wrist Pin Diameter, for use on Honda®, KTM, Pair

Part Number: WIS-CW14

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Estimated Ship Date: May 27, 2026 if ordered today

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Piston Rings, ZS, Chrome, 97.000mm Bore, Husqvarna, KTM, Polaris, Vor, Set

Part Number: WIS-9700ZS

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Estimated Ship Date: May 27, 2026 if ordered today

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Piston Wrist Pin Retainers, Wire Lock, Steel, Gas Gas, for use on Honda®, Husaberg, Husqvarna, Kawasaki, KTM, Polaris, Suzuki, TM, Yamaha, Pair

Part Number: PXR-05-1612C

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Estimated Ship Date: May 27, 2026 if ordered today

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Piston and Ring Kit, Forged Aluminum, 76.000mm Bore, Yamaha, Kit

Part Number: WIS-40078M07600

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ProX Piston Kit YZ250 '99-22 + RM250 '03-12 (66.37mm)

Part Number: PXR-01-2321-C

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Estimated Ship Date: May 21, 2026 if ordered today

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RING KIT

Part Number: NTI-NA-40012R

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Estimated Ship Date: May 22, 2026 if ordered today

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PISTON KIT 40.96/+1.00 6.0:1 YAM

Part Number: NTI-NX-40005-4

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Estimated Ship Date: May 22, 2026 if ordered today

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VERTEX PISTON KIT

Part Number: VPX-22984B

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Estimated Ship Date: May 22, 2026 if ordered today

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Standard Bore Cylinder, CYLINDER ONLY 97.00/STD YAM

Part Number: CLW-CW20014

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Estimated Ship Date: May 22, 2026 if ordered today

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Standard Bore Cylinder Kit, CYLINDER KIT 97.00/STD 12.8:1 YAM

Part Number: CLW-CW20014K01

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Estimated Ship Date: May 22, 2026 if ordered today

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VERTEX CAST REPLICA PISTON KIT

Part Number: VPX-23119A

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Estimated Ship Date: May 22, 2026 if ordered today

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Piston and Ring Kit, Replica, Forged Aluminum, 102.000mm Bore, 10.00 to 1 Compression, Yamaha, Kit

Part Number: VPX-23965B

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Estimated Ship Date: May 22, 2026 if ordered today

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ProX Piston Pin 14 x 39.00mm CR/YZ 80

Part Number: PXR-04-1439

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Estimated Ship Date: May 21, 2026 if ordered today

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ProX Piston Kit YZ65 '18-22 (43.46mm)

Part Number: PXR-01-2018-C

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Estimated Ship Date: May 21, 2026 if ordered today

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ProX Piston Kit YZ250 '99-22 + RM250 '03-12 (66.35mm)

Part Number: PXR-01-2321-A

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Estimated Ship Date: May 21, 2026 if ordered today

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ProX Piston Kit PW50 '81-22 (40.50mm)

Part Number: PXR-01-2005-050

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Estimated Ship Date: May 21, 2026 if ordered today

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Piston Wrist Pin Retainers, Wire Lock, Steel, Yamaha, Pair

Part Number: PXR-05-1010G

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Estimated Ship Date: May 21, 2026 if ordered today

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ProX Big End Pin 36x62.80 mm YFZ450R '09-21

Part Number: PXR-06-3662-8

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Estimated Ship Date: May 21, 2026 if ordered today

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Piston Ring, Chrome, 47.50mm, for use on Honda®, Suzuki, Yamaha, Each

Part Number: WIS-1869CS

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Estimated Ship Date: May 27, 2026 if ordered today

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Piston and Ring Kit, Forged Aluminum, 67.000mm Bore, Yamaha, Kit

Part Number: WIS-804M06700

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Estimated Ship Date: May 27, 2026 if ordered today

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Engine Piston Set, Yamaha YZ450F '18-19 13.5:1 CR (40200M)

Part Number: WIS-PK1934

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Estimated Ship Date: May 27, 2026 if ordered today

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