★★★★★ 5
Look good.
Seem to be good quality. Happy with them.
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Reviewed in the United States on July 6, 2025
Wiseco Yamaha YZ/WR250F 05-11 12.51 CR 7700XU Piston kit
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Wiseco Yamaha YZ/WR250F 05-11 12.51 CR 7700XU 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
Quick Dispatch:
Your Wiseco Yamaha YZ/WR250F 05-11 12.51 CR 7700XU Piston kit orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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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.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.0 ★★★★★
Based on 2453 reviews
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Product Reviews
★★★★★ 5
Nice unit
Using this for deterring my hot rod being stolen. Good price for this. Installation was no surprises and just let them try to steal my hot rod now. First one that was ordered arrived damaged, went through the process of getting a replacement which was simple and received the replacement in a couple of days.
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Reviewed in the United States on September 20, 2024
★★★★★ 3
Does what it does
Does what it does
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Reviewed in the United States on November 10, 2025
★★★★★ 1
Failed after 2 months
Failed after about 2 months of being used as a battery isolator. When activated, only passes about 2 volts though the contacts on a 12 volt circuit now. Wasted my time and money.
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Reviewed in the United States on August 26, 2025
★★★★★ 4
Works great
I used this to turn on with key on power in my truck. Power then goes through this and turns on my key on fuse panel. That way I can run a much larger cable from the battery to the fuse panel instead of pulling power through the ignition switch, where power output is limited. So far it doesn't get hot, though I am not running anything close to 500 amps through it. More like 75 amps max and even then it's only sometimes. No problems so far.
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Reviewed in the United States on July 28, 2024
