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ProX Piston Kits (Sold each). Yamaha RD350/400/RZ350/RD350LC/RD350YPVS (all years). Piston kits include piston, rings, pin and clips. ProX pistons are manufactured in Japan and are designed to meet or exceed OEM specifications. Available sizes are 64.0mm, 64.25mm, 64.50mm, 64.75mm, 65.0mm, 65.25mm, 65.5mm. Note: Use of these pistons in air cooled RD350/400 require modification of the piston skirt. We can perform this service for you. You can purchase the piston modification service here on the site under the piston category. Choose piston size, quantity and click add to cart. -
ProX Piston Ring Sets (ea) Yamaha RD350/400/RZ350/RD350LC/RD350YPVS (all years). Piston replacement ring sets for ProX pistons (sold each - enough for one piston). ProX pistons ring sets are manufactured in Japan and are designed to meet or exceed OEM specifications. Available sizes are 64.0mm,64.25mm,64.50mm,64.75mm,65.0mm,65.25mm,65.5mm. Choose ring size, quantity and click add to cart. -
ProX Wrist Pin RD350/400 16x54mm -
ProX Piston Circlip (Sold in Pairs) -
Yamaha Piston Circlip (Sold in Pairs)
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Wiseco Wrist Pin for Wiseco RD350/400 Pistons. 16mm/2.175" -
Wiseco Piston Circlips (pairs) -
roX Piston Modification for Yamaha RD's. We perform the piston skirt modification and ship piston ready to install. Piston modification fees are non-refundable. Price per piston. -
ProX Top End Bearing - RZ350/LC350 (all) 16x21x22 -
TKRJ Piston Kits (Sold each) Yamaha RD350 / RD400 / LC350 - Made in Japan. Piston kit includes cast piston, rings, pin and clips. Designed to meet or exceed OEM specifications. Economy Cycle has tested these pistons for fitment and performance in air-cooled RD's and have performed well with thicker skirts than ProX pistons giving excellent durability. Available sizes are 64.0mm, 64.25mm, 64.50mm, 64.75mm, 65.0mm, 65.25mm, 65.5mm, 65.75mm, 66.0mm. Choose piston size, quantity and click add to cart. -
Wiseco Forged Piston Kit for Yamaha RD350 & RD400 (All Years). Forged piston kit from Wiseco includes, Piston, Rings, Circlips, Wrist Pins. Sold each. Choose piston size, quantity and click add to cart. -
Wiseco Forged Piston Kit for Yamaha RD350 & RD400 (All Years). Forged piston kit from Wiseco includes, Piston, Rings, Circlips, Wrist Pins. Sold each. In 66.0mm (65.5 not available). Choose quantity and click add to cart.
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Wiseco Top end bearing - RD350/400 (all)
