Wiseco 546M08800 Big Bore Piston Kit for Yamaha WR500 / YZ490 - 88.00mm
Wiseco Big Bore Piston Kit
Part Number: 546M08800
- These kits contain everything you need to complete your piston repair, the first time
- High Performance ring kit and alloy pin included with each piston kit for extended life and sustained power.
- Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy.
- All Piston Kits are precision crafted and forged in the USA
Wiseco's Piston Kits are offered for nearly every popular application in the powersports market. These kits contain everything you need to complete your piston repair, the first time. High quality parts specifically chosen by us to match our forged pistons are included in this kit for easy one stop shopping. 2-stroke kits feature our Pro-Lite pistons that are CNC machined for optimal cam shape and profile for peak HP and service life. 4-stroke kits feature a race-ready dome finish with smooth edges for improved combustion flow. Horizontal slot-pin oiling reduces friction and provides scuff resistance, along with a pressure seal groove for maximum ring seal. 4-stroke race applications feature Wiseco's Armor Glide skirt coating to provide reduced friction and noise to contribute to increased horsepower. Each piston is built from race proven designs that are chosen by the top race teams in all forms of racing including Supercross, Motocross, GNCC, Super-bike, and more.
1992-93 Yamaha WR500
1984-90 Yamaha YZ490
- Displacement: 493cc
- Bore-Standard: 87.00mm
- Bore-Actual: 88.00mm
- Bore-Oversize: 1.00mm
- Stroke: 82.00mm
1993 Yamaha WR500
1992 Yamaha WR500
1990 Yamaha YZ490
1989 Yamaha YZ490
1988 Yamaha YZ490
1987 Yamaha YZ490
1986 Yamaha YZ490
1985 Yamaha YZ490
1984 Yamaha YZ490
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Application specific parts will have part compatibility indicated in the "Fits" or "Fitment" section of the product description and will be provided for all application specific products. These fitment indications are sourced from the product manufacturer and may be subject to change. Please be careful in reading any/all fitment indications for exact Year-Make-Model-Sub Model indications to make sure the part ordered will fit your exact application/s. If you are uncertain about a part compatibility and will to clarify before purchase, please feel free to message us at anytime and an experienced support staff member will assist you in verifying fitment to his/her best ability.Image Policy
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At SVS Powersports we understand that a product does not always look, fit or function as expected. If such a situation arrises, we do accept returns of all Unopened, Unused items with original packaging within 30 days of purchase/delivery. If your item is damaged, defective or completely different from the item ordered, please DO NOT submit a return request, please contact our knowledgable support staff with a clear description of the issue and someone will get back to you in a prompt time frame.
At SVS Powersports we are proud to offer unparalleled level of customer support and if any question or issue should arise, do not hesitate to contact us at any time. We have a very experienced and knowledgable support staff that can assist you with virtually any inquiry. Support staff is available 6 Days a week (Monday Thru Saturday) 10AM to 6PM EST by calling 1-800-787-5817 OR via email at email@example.com with most inquiries responded to within less than an hour during our staff support hours. If you contact us outside these hours, we may still get back you right away, but a response may be delayed until the next business day.
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