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Description
Wiseco Motorcycle Piston Kit Yamaha YZF-R1/YZF-R1 LE – 77.00 Mm BoreWiseco 4 Stroke Forged Series Piston Kit, 77. 00 mm Bore, 13. 5: 1 CR 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,
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.1 ★★★★★
Based on 1408 reviews
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Product Reviews
★★★★★ 5
High Miles on Auto
Needed this O ring for my Honda. It works well and does what is expected. The rubber is flexible and not frayed or hardened. Easy to use and a decent price. So far there has been no issues with the o ring, no leaks, tears or damage.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Great replacement o-ring
I had to do some work on my Honda that required me to remove the steering pump. Any time you do that, you should replace the top o-ring. This o-ring was an exact match to the original and fit just fine. I popped it in and torqued it down to spec. It's holding a great seal and I've seen no problems with it. Good replacement in that it functions just like it should!
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Reviewed in the United States on June 23, 2025
★★★★★ 3
Tuve que poner otra
Nose si eran las medidas correctas se loqueó el aceite
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Reviewed in the United States on January 4, 2026
★★★★★ 5
Good fit, well made
These O-rings fit dimensionally the power steering pump on the 2006 CR-V. I only checked on the replacement pump, did not install yet on the car. These look and feel just like the originals, good quality material and well made, but only mileage can tell if they are as good. For now, all looks good.
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Reviewed in the United States on July 10, 2025
★★★★★ 5
as described
The size of these two o rings matches the description. Did not use in a vehicle so cannot speak on the fit of that, but size was accurate and they worked for my use.
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Reviewed in the United States on June 3, 2025
