WSM Yamaha 800/ 1200 R Platinum Piston Kit 010-829-07PK 1mm SIZE, 66E-11631-01-A

WSM Yamaha 800/ 1200 R Platinum Piston Kit 010-829-07PK 1mm SIZE, 66E-11631-01-A

Marsoni

M251S

$82.59

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

WSM Yamaha 800/ 1200 R Platinum Piston Kit 010-829-07PK 1mm SIZE, 66E-11631-01-AWSM Yamaha 800 1200 R (power valve) high performance Platinum piston kit. Kit includes rings, pins and clips. Platinum pistons have a moly coating that reduces heat and friction during the start up phase. This increases HP and extends the life of the piston. 1mm OVER SIZE ONLY ITEM#: 010 829 07PK PISTON KIT YAMAHA 800 1200 98 05 1MM OVER PLATINUM BRAND: WSM FITMENTS: Make Model Year(s) Yamaha GP 800 1998 2002 Yamaha GP R 1200 2000 2002 Yamaha GP R 800

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Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly. Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration. Ended up running self tapping screws thru parts to complete assembly.

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Reviewed in the United States on February 26, 2024

Verified Purchase

Carl L. Bradley

Los Angeles, US

★★★★★ 1

Kinda flimsy…

Thought the assembly was metal, it’s some kind of PVC.

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Reviewed in the United States on September 22, 2025