COMP Cams Grooving Tool .874 Diameter

Marsoni

M251S

$110.88

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

COMP Cams Grooving Tool .874 DiameterDeveloped by one of the top NASCAR engine builders, this innovative tool precisely grooves the lifter bore to ensure the pressure fed oil is directly injected into the contact area between lifter and Camshaft. This increased oiling significantly reduces wear on the Camshaft and lifters and decreases the risk of premature failure during break in. This machine operations to the block is quick, easy, inexpensive and is the best insurance for a new Cam

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Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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I’ve been using this robot vacuum for about a month now, and I have no regrets about buying it! It’s noticeably quieter than my previous robot vacuum, and the mopping performance is excellent. I really like that it has two large water tanks—one for clean water and one for dirty—which makes a big difference as it easily covers my entire house on a single run. I don’t have carpet, so I can’t speak to how it performs there, but for vacuuming and mopping tile and hard floors, it absolutely deserves high praise. The battery is another big plus—it can clean my whole house before needing to return to the base to recharge. The app is fantastic. The mapping is very accurate, and there are plenty of cleaning options to customize different areas of the house. The initial app setup did require some help, but customer support was quick and very helpful. Overall, I’m a very satisfied customer and would definitely recommend it!

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Reviewed in the United States on December 31, 2025

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Luke Howard

Bozeman, US

★★★★★ 5

Very great and durable option.

Style: for Saros 10R / Saros 20 / Qrevo CurvX

These parts are the perfect option when maintaining your robot vacuum. They fit the machine perfectly and are just as if not more durable than the company provided parts. Definitely recommended.

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Reviewed in the United States on March 28, 2026

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Gisela Villena

Belleville, US

★★★★★ 5

Quality at a great price

Style: for Saros 10R / Saros 20 / Qrevo CurvX

I was happy with the items, they did work great and I saved money buying them. Highly recommended.

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Reviewed in the United States on May 19, 2026

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