Whenever possible we use picture of the actual part number. Some items do use stock photos provided by the manufacturer.

 

ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc. The latest cylinders are plated by a Nicasil plating. Therefore we offer a wide range of ProX pistons in standard size, as well as in A, B, C, D+ oversizes.

Established in 1975, ProX™ is a dedicated performance products manufacturer with a large product line for you to choose from that is growing by the minute, including air filters, bearings, clutch and brake components, piston kits, and many other parts for a wide variety of personal vehicles. Prox Cast Flat Top Piston Kit 83.00 mm is made of the finest materials and will not have you regretting your purchase from ProX™.

Excellent economic alternative when you are looking for an OEM quality replacement pistonMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high quality standardsSleeved cylinder piston kits are available in standard size and a Wide range of oversizesPlated cylinder piston kits come in standard size, as well as in A, B, C and D oversizes if availableProX leads the industry in cast and forged pistons made specifically to replace OEM partsComes complete with pistons, piston rings, wrist pin and circlips

• Comes complete with crankpin, big-end bearing, small-end bearing, and washers
• Easy to install
• PRO-X connecting rod kits are made out of the toughest alloys available today
• O.E. specifications and tolerances are meticulously maintained
• Comes with crankpin, big-end bearing, small-end bearing, and washers
• Made out of the toughest alloys available today
• O.E.M. specifications and tolerances are meticulously maintained, a guarantee for easy installation and trouble-free performance
• Kits include the necessary crank pin, big-end bearing, small-end bearing and washers for each model

• 1989 Yamaha Warrior 350 YFM350X
• 2001 Yamaha Warrior 350 YFM350X
• 1987 Yamaha Warrior 350 YFM350X
• 2003 Yamaha Warrior 350 YFM350X
• 1993 Yamaha Warrior 350 YFM350X
• 2000 Yamaha Warrior 350 YFM350X
• 1996 Yamaha Warrior 350 YFM350X
• 1998 Yamaha Warrior 350 YFM350X
• 2002 Yamaha Warrior 350 YFM350X
• 1991 Yamaha Warrior 350 YFM350X
• 2004 Yamaha Warrior 350 YFM350X
• 1995 Yamaha Warrior 350 YFM350X
• 1992 Yamaha Warrior 350 YFM350X
• 1994 Yamaha Warrior 350 YFM350X
• 1999 Yamaha Warrior 350 YFM350X
• 1990 Yamaha Warrior 350 YFM350X
• 1997 Yamaha Warrior 350 YFM350X
• 1988 Yamaha Warrior 350 YFM350X

CLICK HERE to check out our other NEW Warrior 350 parts.

Make sure to check out our other used Warrior 350 parts.

 

Domestic Shipping

• Orders containing multiple items may ship separately in multiple shipments. They may not arrive at the same time and may take another couple of days for the complete order to arrive.
• Free and Flat Rate Shipping is limited to lower 48 States only.
• We ship Mon-Fri excluding Holidays.
• We use FedEx, UPS, and USPS. Which shipping method is used for your order is at our discretion. If you have a physical address and a PO box please provide both.
• Please make sure the shipping address is correct at checkout. Our shipping process is highly and shipping does not have access to ebay messages.
• Once the order is sent to a pull sheet at one of our warehouses we are NOT ABLE to change the address or cancel the order. It will ship to the address provided at checkout.
• If you make an error in the address or wish to cancel an order send an official CANCEL TRANSACTION REQUEST IMMEDIATELY. We do hold order a few minutes to allow for then. Our fulfillment process is automated and we will not see a direct message until it is to late to cancel it.
• Hawaii, Alaska, Puerto Rico and APO addresses must contact us prior to purchasing item for a shipping quote first. Shipping fees to APO, AK, PR and HI will be calculated individually and added to customer invoice prior to paying for the item.
• Make sure you have packages delivered to a secure location. We can not cover packages stolen after delivery.

International Shipping

• International shipments will ship through the ebay Global Shipping Program.
• PirateMX Powersports is not responsible for taxes and duties which may be due on your shipment.
• Please note that all prices are in U.S. Dollars. Any fitment provided is for US Spec models.

Returns Policy

Returns are accepted up to 30 days from purchase date

• Items must be in new condition, no returns are accepted on used or installed items. If the products show any signs of installation, we cannot accept the return.
• Item must be in original undamaged unopened packaging.
• Any and all returned electrical items that are not sealed will be considered USED and not resell-able and not eligible for a full refund.
• Use our shipping packaging to ship back the item, DO NOT tape the label directly to the original manufacturer’s box.

 

Contacting Us for a Return

Items purchased on ebay must be returned using the return process. Send us a message via ebay for help starting a return.

Warranties

All items are new in box unless listed otherwise. Any warranties are from the products manufacturer.

In the unlikely event you need to make a warranty claim, we will assist with the process. Products are limited to the manufacturer's warranty..

To contact us about a warranty related issue..

• Send us a message via ebay..

• WARNING: This product contains chemicals known to the State of California to cause cancer and/or reproductive harm, and birth defects or other reproductive harm.