Locking Ring for Trimline Cartridge Filter Lid MK2 MK3

Locking Ring for Trimline Cartridge Filter Lid MK2 MK3

Marsoni

M251S

$55.00

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

Locking Ring for Trimline Cartridge Filter Lid MK2 MK3Take control of your Waterco Trimline cartridge filter lid with the Locking Ring MK2 MK3 a purpose built replacement that secures the lid, reduces wear, and makes maintenance smoother, safer, and less prone to damage. Designed specifically for Waterco Trimline MK2 and MK3 lids, this locking ring is the essential upgrade when a lid sticks or when you want to avoid costly breakages from prying with improvised tools. Its the part you install once and

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Your Locking Ring for Trimline Cartridge Filter Lid MK2 MK3 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.
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For what it's worth, the quality of the hose seemed good, so that's why I gave 3 stars, but: It did not fit my e90 2006 330i, n52 engine. Took the car to the shop to replace broken OEM hose. I provided the hose. It did not fit, so I ended up paying the shop for a hose, and probably extra time because it sat on the lift waiting for the one they ordered.

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Reviewed in the United States on August 25, 2024

Verified Purchase

Mike Ochoa

Cuba, US

★★★★★ 5

Qaulity part

Great fit.

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Reviewed in the United States on February 23, 2024

Verified Purchase

Louis

Los Angeles, US

★★★★★ 5

Hose

Great custom fit

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Reviewed in the United States on November 17, 2020

Verified Purchase

Graves

Louisville, US

★★★★★ 3

Didn’t fit but I made it fit.

The part appears decently made in China. The end that terminates below the oil filter would not mount (too tight). I gently sanded the o-ring groove, lubricated and I put the part in freezer. After two hours of sanding the groove I got the part seated. Good thing I was patient today. Pain in the butt.

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Reviewed in the United States on December 12, 2020

Verified Purchase

Man with plan

Houston, US

★★★★★ 5

Highly recommend

Perfect fit for my Mercedes C300 V6

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Reviewed in the United States on March 1, 2026