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Wiseco 03-05 Yamaha YZ/WR450F 12.5:1 (4785M09700) Piston Kit

Marsoni M251S
Sale price$185.93
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Wiseco 03-05 Yamaha YZ/WR450F 12.5:1 (4785M09700) Piston KitThe Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high performance 4 strokes. Today, Wiseco's 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
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.1 ★★★★★
Based on 575 reviews
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Product Reviews
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Verified Purchase
Jonathan Payton
Houston, US
★★★★★ 5
Decent product!
Color: Camouflage, Color: Camouflage
Just put it on today. Put my phone and wallet in the top pockets. Took a ride up through the back of my property and didn't lose anything. Can't complain but time will tell. You guy's are lucky I didn't give you 1 star for the annoying reminders of a review before I used the product.
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Reviewed in the United States on January 4, 2026
D
Verified Purchase
Davaid
Los Angeles, US
★★★★★ 5
Solidly Built
Solidly built. Easy install. Haven't used them on the trail yet but if they work like they look I don't expect any issues.
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Reviewed in the United States on December 3, 2025
S
Verified Purchase
SteveO
Fort Morgan, US
★★★★★ 5
Good storage for your ATV four wheeler.
Works great. Fits on my 2023 Canam 850 Outlander. I needed a storage compartment where I could put a few tools, gloves, flashlight and straps to seccure my cargo when not in use. It is well built and attaches firmly to the back of my front wheel well body molding. It does not interfer with my driving or leg movement. The only down side when you unzip the lid it doesn't fold back easily but it still excessable.
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Reviewed in the United States on May 24, 2025
L
Verified Purchase
L. K. E.
New York, US
★★★★★ 1
MEH. Not worth $40
Meh. Not sure about durability for 39.99. Seems a bit steep for what showed up at my door, hence the one star. Opening the top is clumsy and can barely open if mounted against something flat. The cheap strap setup might work in a specific ATV application, but don't buy this bag (especially for 40 bucks) if you plan to try it in any other way. The chintzy sticky velcro pads plus dumb strap and buckle design pretty much rules out clicking the bottom and top straps together for a tidy wrap-around installation. This should've been a $20 item at most.
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Reviewed in the United States on June 10, 2025
W
Verified Purchase
Wade Krafft
Lake Worth, US
★★★★★ 5
Fantastic 😍
Fantastic storage, bought 2.
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Reviewed in the United States on October 22, 2025

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