Wiseco Yamaha YFM660 Raptor 9.91 CR (4966M10000) Piston Kit

Wiseco Yamaha YFM660 Raptor 9.91 CR (4966M10000) Piston Kit

Marsoni

M251S

$166.03

Get it in 3 business days with 1 day shipping. Friday, May 29

Wiseco Yamaha YFM660 Raptor 9.91 CR (4966M10000) Piston KitPremium materials produce the best sealing technology available exceeding O. E. M. standards. 2 Stroke: Wiseco top end gasket kit; Dedicated forging; Superior strength weight ratio utilizing Aerospace alloy; Race proven designs; Chosen by top race teams, in all forms of racing; CNC machined; Optimal cam shape and profile for peak HP and service life; Premium top end needle bearing; Precision machined, highest quality materials for strength and reduced

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This oil pan works decently but would be much better if it were slightly larger. At the size it is it is easy to miss the pan and make a mess. The pan holds enough oil for a bike or lawnmower but not enough for a car or truck. The plugs screw on well and don’t leak from my use. But the pan has inner lips that hold oil and make it hard to clean, would be much better if it were a smooth surface. The pan is made of thick plastic though and is well built overall, it just could be designed better.

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Reviewed in the United States on September 18, 2025

Verified Purchase

Windy

Natrona Heights, US

★★★★★ 5

Easy to use

Used for my lowered Road King. Recommend.

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Reviewed in the United States on November 4, 2025

Verified Purchase

Carlos M