Piston Rings Mercury / Mariner 35 - 150 Hp Cross Flow STD 18-3902, 39-45155A12

Piston Rings Mercury / Mariner 35 - 150 Hp Cross Flow STD 18-3902, 39-45155A12

Marsoni

M251S

$49.97

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

Piston Rings Mercury / Mariner 35 - 150 Hp Cross Flow STD 18-3902, 39-45155A12Item#: 18 3902 Piston Rings Mercury Mariner 35 150 Hp Cross Flow Standard OEM#: 39 45155A12, 39 78816A12, 78816A12 Brand: Sierra FITMENTS: Make Model Year(s) Mariner ALL Mercury 2 Cyl 2. 875 Bore Cross Flow 35 1984 1989 Mercury 2 Cyl 2. 875 Bore Cross Flow 40 1972 1983 Mercury 3 Cyl 2. 875 Bore Cross Flow 50 1984 1990 Mercury 3 Cyl 2. 875 Bore Cross Flow 60 1984 1990 Mercury 3 Cyl 2. 875 Bore Cross Flow 65 1973 1976 Mercury 3 Cyl 2. 875 Bore Cross

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We have a 77lb goldendoodle who loves these. We’re lucky because he doesn’t chew on anything other than his toys, but when he starts on this…he really goes at it. It’s healthy, (not synthetic), doesn’t break apart, (no pieces to worry about him swallowing), it just perfect for him. The noise may get on your nerves but it’s a small price to pay to keep him from chewing on your furniture, shoes, or anything else a mischievous dog can find.

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Reviewed in the United States on May 30, 2026

Verified Purchase

Kylie

Dallas, US

★★★★★ 3

Little pieces break off

Color: Dogwood (Brown), Size: Large (Pack of 1)

My dog is obsessed with this. It does last a long time even given her strong chewing capabilities. I wish it was a little bigger. The main reason I rated it so low is when my dog is chewing on this it breaks off a little plastic peice and sometimes it hits the back of her throat making her cough so you have to supervise with this.

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Reviewed in the United States on February 1, 2026

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Heidi

Boise, US

★★★★★ 5

Great for aggressive chewers

Color: Dogwood (Brown), Size: Large (Pack of 1)

My dog is an aggressive chewer so they are great for her. I would love to have one a bit thinner so it could fit in a holder so it is easier for her to hold while eating. This keeps her busy and is long lasting. I have purchased these multiple times.

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Reviewed in the United States on April 5, 2026

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Tabitha

Bozeman, US

★★★★★ 5

Great for a chewer

Color: Dogwood (Brown), Size: Large (Pack of 1)

My dog loves a hard toy and a durable one. My dog has been chewing on this for months and it is still holding strong. Because it is a hard toy when my dog brings this into another room with a hard floor and drops the toy it can be startling. My dog will choose this toy over others on a daily basis and brings the toy to other rooms.

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Reviewed in the United States on May 19, 2026

Verified Purchase

Natrona Heights, US

★★★★★ 5

Durable

Color: Dogwood (Brown), Size: Large (Pack of 1)

Durable, good chew toy.

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Reviewed in the United States on June 8, 2026