Single Lip Nitrile Rotary Shaft Seal (3.125x4.999x0.438 Inch)

Single Lip Nitrile Rotary Shaft Seal (3.125x4.999x0.438 Inch)

Marsoni

M251S

$31.88

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

Single Lip Nitrile Rotary Shaft Seal (3.125x4.999x0.438 Inch)Acrylonitrile butadiene rubber (NBR) is the material name for nitrile rubber. This material is very good for seals due to its make up. Nitrile rubber can tolerate short term dry running of the sealing lip. The operating temperature range without failure of nitrile rubber is 40 to +100 C. This also offers a special nitrile rubber compound with a temperature range between 55 and +110 C. Please click here for a full in depth look at the range of seals

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We offer a 30-day return/exchange service after receiving.
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This filter is very comparable to the stock filter. Fits the BMW G20 just like OEM. I would not say it is two times "heavier" as advertised on the box, but it is very comparable to stock. It's the same weight and similar construction. BMW has a very robust cabin filter. This will be my go to. I did purchase another aftermarket cabin filter that fit well, but was thin, flimsy and had a bad chemical odor. This one is fine and airflow is the same as OEM. I change them every year or so. I don't worry too much about longevity with cabin filters personally.

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Reviewed in the United States on May 15, 2026

Verified Purchase

S. Phillips

Lake Worth, US

★★★★★ 4

Good quality but it was slightly longer than original and needed modification.

Style: BE-182 1-Pack

Bought this cabin filter for a 2023 Acura TLX. While the filter seems to be made of quality material, it was just a little too long (about a 1/16 of an inch, so I had to trim it to make it fit so the cover would fit snug. I was able to do that without compromising the filter itself. But this might be an issue for some people

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Reviewed in the United States on May 8, 2026

Verified Purchase

Keith Granholm

Chelsea, US

★★★★★ 5

Fits my Chevy 2021 Bolt Premier perfectly.

Style: BE-966 1-Pack

Installation was a breeze, fir nicely and the air in teh car now smells fresh and clean. The old filter has developed a musty smell so this new one is great. Had it replaced in under 3 minutes.

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Reviewed in the United States on May 18, 2026

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Punkizback

Cuba, US

★★★★★ 5

Fits perfectly for my 2017 VW Passat

Style: BE-373 1-Pack, Style: BE-373 1-Pack

Bought this for a fraction of the cost. An auto shop wanted to charge me $72.99 for a filter so I bought this Spearhead brand cabin filter and its the perfect size and its just as sturdy as the previous one the dealership had in the car. Not sure yet how the airflow is or if anything different as I have not driven in the car since it was replaced, but it appears to be a very high quality cabin filter for my car at a great price.

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Reviewed in the United States on May 25, 2026

Verified Purchase

SBJ

Grantham, US

★★★★★ 5

Good Quality Replacement for Lexus

Style: BE-285 1-Pack

Was a perfect fit for my 2016 Lexus NX200t. No tools required. Total of 5 minutes to install. Airflow is good after replacement and the activated charcoal seems to make a difference in reducing any smells from outside. Recommended.

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Reviewed in the United States on May 3, 2026