★★★★★ 5
BMW F25
Saved me when tried to change the oil. Great price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
COMP Cams Valve Locks 3/8in Single Groove
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
COMP Cams Valve Locks 3/8in Single GrooveThese hardened steel, single groove Steel Street Locks with 7? lock angle and 3 8" valve stem size are perfect replacement locks 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
Quick Dispatch:
Your COMP Cams Valve Locks 3/8in Single 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
Order Tracking:
You'll receive a tracking link by email once your COMP Cams Valve Locks 3/8in Single Groove ships.
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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]
- Please click here for more details>>> Return & Exchange Policy
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Based on 1053 reviews
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Product Reviews
★★★★★ 5
Un buen precio
Color: Silver
Quedó bien
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Reviewed in the United States on March 20, 2026
★★★★★ 1
Not as described does not fit
Color: Silver
Not as described does not fit no good
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Reviewed in the United States on May 3, 2026
★★★★★ 4
Do one oil change myself and it’s more than paid for.
Color: Silver, Color: Silver
It is 74 mm. It’s nicely made of cast aluminum. It has a rough cast finish so it shouldn’t be difficult to hold on to. It does fit my Lexus filter and the price is very reasonable. It also fits the oil filter on my 1999 (antique) Harley Davidson Heritage Classic. Which is the primary reason I ordered it. I don’t know this for certain but I suspect it will fit all HD EVO engines. That would be 1984 through 1998 except the Heritage which didn’t change to the 88 Twin Cam until 2000.
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Reviewed in the United States on December 18, 2025
★★★★★ 1
Didnt fit my C300
Color: Silver
Didn’t fit my 2008 Mercedes C300 4matic sport.
I bought another one on Amazon from a different company and it did fit. Eochi or something brand.
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Reviewed in the United States on December 6, 2025
