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WSM Yamaha 40 / 50 HP - Piston Kit OE 6H4-11631-01-95 - 100-252-05k .020 2.658"

Marsoni M251S
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WSM Yamaha 40 / 50 HP - Piston Kit OE 6H4-11631-01-95 - 100-252-05k .020 2.658"WSM Yamaha Outboard 40 50 Hp Piston Kit (Kit includes Piston, Rings, Wrist Pin, & Clips) . 020 OVER SIZE ONLY 2. 658" This part meets or exceeds OEM Specifications Application Fits: OEM #: 6H4 11631 01 95 2 Ring ITEM#: 100 252 05K PISTON KIT YAMAHA 40 50 HP 3 CYLINDER 89 08 . 020 OVER OEM#: 6H4 11636 01 00 2. 658" 2 ring BRAND: WSM FITMENTS: Make Model Year(s) Yamaha 3 Cyl 2. 638 Bore 40 1989 2008 Yamaha 3 Cyl 2. 638 Bore 50 1989 2008 Yamaha 3 Cyl Jet
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4.9 ★★★★★
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Swetha Puchakayala
Boise, US
★★★★★ 5
Worth Spending
Size: X-Large, Color: B004
Super comfortable....
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
A
Verified Purchase
Amazon Customer
Bozeman, US
★★★★★ 5
Trust Wirarpa briefs to be the Best briefs!!!
Size: X-Large, Color: Multicolored19-4 Pack
These are the BEST ever briefs I’ve purchased. I love these! Quality, fit, price and comfort is far beyond the other name brands like Jockey, Hanes, Fruit of the Loom etc to name a few. Those only last a few months (quality) before ripping or elasticity fails or groin area wears out from stretch. But NOT the Wirarpa men’s cotton stretch underwear support briefs. It is made with our anatomy in mind with perfect support. I only buy these now and will never buy another brand.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
N
Verified Purchase
Nick
Whiting, US
★★★★★ 5
Nice comfortable underwear
Size: Large, Color: A-multicolored-4 Pack, Size: Large, Color: A-multicolored-4 Pack
Good fit, comfortable and plenty of room for the equipment.
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Reviewed in the United States on May 22, 2026
M
Verified Purchase
Michael J. Pasierb
Lexington, US
★★★★★ 4
Quality control
Size: Large, Color: Black-4 Pack, Size: Large, Color: Black-4 Pack
They did fit well but now the waist band is coming off on all of them. Quality control needs to look into this problem. I would have bought them again if they solve this problem.
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Reviewed in the United States on May 12, 2026
S
Verified Purchase
SThomas
Natrona Heights, US
★★★★★ 5
Great!
Size: Medium, Color: Multicolored19-4 Pack
I have ordered three packages of these over the years. They are solidly made and withstand washing and drying without the color fading and elastic band stretching. They are sized correctly and are super comfortable.
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Reviewed in the United States on April 27, 2026

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