Pistons & Piston Rings

ProX Big End Pin 32x59.90 mm KTM350SX-F '16-22

Part Number: PXR-06-3259-9-1

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ProX Big End Pin 33x57.80 mm YFM350 Warrior/Raptor '87-13

Part Number: PXR-06-3357-8

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ProX Big End Pin 33x60.80 mm CRF450R '09-16

Part Number: PXR-06-3360-8

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ProX Big End Pin 34x59.90 mm KX450F '06-08

Part Number: PXR-06-3459-9

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ProX Big End Pin 34x60.75 mm YZ400F/426F/450F

Part Number: PXR-06-3460-8

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ProX Big End Pin 34x61.00 mm CRF450R '02-08

Part Number: PXR-06-3461

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ProX Big End Pin 34x62.00 mm KX450F '09-22

Part Number: PXR-06-3462

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ProX Big End Pin 34x64.90 mm CRF450X '05-17

Part Number: PXR-06-3464-9

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ProX Big End Pin 35x62.00 mm KTM450SX-F '16-22

Part Number: PXR-06-3562

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ProX Big End Pin 35x67.00 mm CRF450R '17-22

Part Number: PXR-06-3567

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

Part Number: PXR-06-3662-8

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ProX Big End Pin 37x73.75 mm Raptor '02-05

Part Number: PXR-06-3773-8-2

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ProX Big End Pin 40x65.00 mm KTM640LC4 '98-07

Part Number: PXR-06-4065

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ProX Big End Pin 40x73.80 mm YFM700R '06-21

Part Number: PXR-06-4073-8

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ProX Big End Pin TM250/300 '05-19 (25x59.6x6.0)

Part Number: PXR-06-C0003

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Ring Set- 4.290" x 1/16x1/16x3/16"

Part Number: WIS-4290H

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Estimated Ship Date: Sep 15, 2025 if ordered today

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Piston Rings, Plasma-moly, 4.320 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, Single Piston, Set

Part Number: WIS-4320H

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Piston Rings, Gas NItrided, 4.0027 in. Bore, 0.047 in., 0.047 in., 3.0mm Thickness, Single Piston, Set

Part Number: WIS-4027GFX

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Piston Rings, Gas Nitrided, 4.040 in. Bore, 0.047 in., 0.047 in. 3.0mm Thickness, Single Piston, Set

Part Number: WIS-4042GFX

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Piston Rings, Plasma-moly, 4.070 in. Bore, 1/16 in., 1/16 in., 3.0mm Thickness, Single Piston, Set

Part Number: WIS-4075HF

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4.080" Auto Ring Set for 1 Piston

Part Number: WIS-4080HF

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6.1L/6.4L HEMI 1.2/1.2/2.0mm

Part Number: WIS-4090VM

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1.2/1.2/2.0mm 4.100" bore; 8lb tension

Part Number: WIS-4100VM

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4.375" x 1/16x1/16x3/16" Set*

Part Number: WIS-4375R

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Piston Rings, Gas Nitrided, 4.047 in. Bore, 0.047 in., 0.047 in., 3.0mm Thickness, Single Piston, Set

Part Number: WIS-4047GFX

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