


COMP Cams Valve Locks 3/8in Four Groove
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
COMP Cams Valve Locks 3/8in Four Groovelock angle and 3 8" valve stem size are a perfect replacement lock for stock engine rebuilds. They are recommended only for street Applications with lighter valve spring loads. It is critically important to make sure valve locks match the valve size. There should always be a small gap between the two halves of the lock when they are properly positioned on the valve stem. If the two halves fit together without a gap, they are too large. If the locks
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Your COMP Cams Valve Locks 3/8in Four Groove orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- 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.
- To process your return/exchange, please contact us at [email protected]
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★★★★★ 4
Workable but not as tight to fit
Size: 11SMax-24Pack
They work, but they don’t click in as smooth as the original pieces did
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Reviewed in the United States on January 20, 2026
★★★★★ 5
Fast shipping, items as advertised.
Size: 11SMax-24Pack
Perfect fit.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Works for my G30 Verge
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Fit my G30 Verge. Works well and brought it back to life. Great value for the money!
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Reviewed in the United States on January 15, 2026
★★★★★ 5
Fits my Eufy
Size: 11SMax-24Pack
Parts fit my Eufy like they should. The side brush has held up nicely.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Bang for buck
Size: 11SMax-24Pack
You get a lot for the price. And it fits. Recommended. It is a little noisier than the original bit functions are the same
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Reviewed in the United States on January 10, 2026