Piston Kit: Mercury 20-50 Hp Cross Flow Hp .040 Over Size Only - 100-05-07K

Piston Kit: Mercury 20-50 Hp Cross Flow Hp .040 Over Size Only - 100-05-07K

Marsoni

M251S

$86.96

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

Piston Kit: Mercury 20-50 Hp Cross Flow Hp .040 Over Size Only - 100-05-07KITEM#: 100 05 07K PISTON KIT MERCURY MARINER 20 50 HP CROSS FLOW 72 97 . 040 OVER OEM#: 743 3366A2, 780 9119A10 2. 605" BRAND: WSM FITMENTS: Make Model Year(s) Mariner ALL Mercury 2 Cyl 2. 565 Bore Cross Flow 20 1972 1979 Mercury 4 Cyl 2. 565 Bore Cross Flow 40 1989 1997 Mercury 4 Cyl 2. 565 Bore Cross Flow 50 1970 1985 For more information on our policies please click the Shipping and Payments tab or to ask a question click our store name for our

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It's hefty! I bought this for my 70lb Dutch Sheperd/Malinois mix because she, as the breeds are, is extremely active and loves to play tug of war. I read the reviews and knew the bone was noted to be heavy but bought it anyway. It was a little bulky for her at first and she let it lie for a couple of months but was picking it up today. I will get use out it with her as she continues to grow but definitely not for smaller dogs. It's still a good, sturdy product!

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Reviewed in the United States on January 6, 2026

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Port Orchard, US

★★★★★ 5

Have bought a few of these over the last handful of years

Color: Red

Best toy outside of Ghonuts for heavy chewers. Even outlasts the most durable Kongs. I'd say we get about four months before our dog starts really making a dent in it and the size of the pieces he pulls off start to become larger and I should probably replace it after about six months. It's cheap enough that replacing it that often is fine. *Important note* using squishy toys for heavy chewers is really important. They can break their teeth on hard toys like Nyla bones and things like antlers can break and cut them and damage their digestive system if they swallow the shards. It sucks because my dog loved Nyla bones and would chew off an inch a day, but I couldn't risk his teeth like that.

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Reviewed in the United States on April 5, 2026

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Jenah Labuski

Louisville, US

★★★★★ 5

Finally - a tug toy my dog hasn’t destroyed!

Color: Red

This completely exceeded my expectations! My dog is roughly a year old, about 110-115lbs and a TOUGH chewer. He loved tugs toys but none of them last more than 10 minutes with him. I decided to try this because of the other reviews and price but wasn’t expecting it to last long. He’s had it almost a week and it’s still completely intact. It’s definitely heavy so it might not be best for smaller dogs but if you have a big dog/heavy chewer definitely give this a shot!

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Reviewed in the United States on May 16, 2026

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Lisa A

Birmingham, US

★★★★★ 5

Indestructible so far

Color: Red, Color: Red

My toy destroyer has had this for almost two months now and it hasn’t taken any damage. It is big and heavy and solid. It became one of his favorites immediately and goes in and out of the house and even to bed with him. Now if only we could find a stuffy that he can’t destroy.

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Reviewed in the United States on May 23, 2026