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Orders over $49 will receive free shipping. This is a residential delivery service, with deliveries Monday through Friday from 9:00am to 8:00pm.
Learn MoreImportant note: This piston is for a stock or oversized bore. Please measure your cylinder to check clearance before ordering.
Note: Image is for reference ONLY, actual contents will vary based on fitment.
Wiseco leads the performance aftermarket by producing the highest quality forged pistons in the U.S.A. Wiseco is unique because they forge all of their own pistons in-house, and produce all of their own forge tooling in the U.S.A. This allows Wiseco to control all aspects of their manufacturing process from raw bar to skirt coating on the finished parts.
Extreme racing conditions demand the strength and toughness that only forged pistons can offer. Compared to cast pistons, forgings are tougher and more durable, and will stand up to the abuse that high performance motorsport applications require. Most castings are brittle, have no grain structure and tend to fail catastrophically when the material yield strength is exceeded. Forgings have condensed grain that is aligned to the features of the part, which produces higher mechanical properties, and resistance to impact and fatigue. Each forging is designed to optimize the strength-to-weight ratio, and maximize performance.
The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, Wisecos forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability youre looking for.
Product Variant | Manufacturer Part # |
---|---|
.008" Oversize / 10:1 | 40132M05750 |
.030" Oversize / 10:1 | 40132M05800 |
.050" Oversize / 10:1 | 40132M05850 |
.080" Oversize / 11:1 | 4628M08700 |
.080" Oversize / 12:4:1 | 4924M06800-CL77 |
.080" Oversize / 12:5:1 | 4732M09700 |
.080" Oversize / 12:8:1 | 11047M07800-CL77 |
.080" Oversize / 13:1 | 4786M09700 |
.080" Oversize / 13:5:1 | 4714M09200 |
.100" Oversize / 11:1 | 4716M10240 |
.120" Oversize / 11:1 | 4628M08800 |
Racer Elite / Stock Bore / 14.5:1 | RE800M07680, RE801M07700, RE802M07700, RE803M07700, RE804M07800, RE811M07700, RE812M07700, RE820M07900, RE823M07700, RE824M07800, RE828M07800 |
Racer Elite / Stock Bore / 14:1 | RE805M09500, RE806M09600, RE807M09600, RE808M09600, RE809M09700, RE813M09600, RE814M09600, RE815M09700, RE816M08800, RE818M09700, RE822M09600, RE825M09700 |
Stock Bore / 11.1:1 | 4903M10200 |
Stock Bore / 11.5:1 | 4849M09400 |
Stock Bore / 11:1 | 4628M08500, 4716M10000 |
Stock Bore / 12.4:1 | 4835M09500 |
Stock Bore / 12.5:1 | 4732M09500 |
Stock Bore / 12:2:1 | 4924M06600 |
Stock Bore / 12:5:1 | 40131M09500 |
Stock Bore / 13.1:1 | 4851M09400 |
Stock Bore / 13.5:1 | 4990M09600, 4905M09600 |
Stock Bore / 13:1 | 4842M07700, 4822M09600, 4786M09500, 4806M09500 |
Stock Bore / 13:5:1 | 4852M07800, 4948M10000, 40121M09700, 4823M09600, 4714M09000, 4959M08900, 4938M09700 |
Stock Bore / 13:9:1 | 40012M07700 |
Stock Bore / 14.5:1 High Compression | RE810M07680 |
Stock Bore / 14:1 | 40127M07700, 40156M07680, 40155M07700 |
Stock Bore / 14:2:1 | 40004M07680-CL77 |
Stock Bore / 14:5:1 | 40135M07700 |
WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. For more information, go to www.P65Warnings.ca.gov.