Double Lip Nitrile Rotary Shaft Seal (3.25x4.249x0.438 Inch)

Double Lip Nitrile Rotary Shaft Seal (3.25x4.249x0.438 Inch)

Marsoni

M251S

$21.36

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

Double Lip Nitrile Rotary Shaft Seal (3.25x4.249x0.438 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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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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We purchased this to get ready for our latest camping trip across the southwest states. Fortunately, we did not need to use it for our travel trailer during our recent trip. However we did use it to assist another couple who had a tire on their trailer that was totally shredded. He did not have any kind of Jack to be able to change his tire. This worked amazingly well, so much so that he asked for the link so he could order one from Amazon too.

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Reviewed in the United States on June 2, 2026

Verified Purchase

David R.

West Palm Beach, US

★★★★★ 5

Effective Tool

Color: Yellow, Size: 5.5" Lift

Go try to use your standard car jack to lift your two axle travel trailer and see why this simple ramp just works. I have used this ramp for changing trailer tires, packing bearings, and changing brakes. It's effective in lifting one tire even though the suspension is articulating. It is also much more stable than a hydraulic jack under an axle. I highly recommend this ramp for travel trailer use.

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Reviewed in the United States on January 31, 2026

Verified Purchase

Shaun & Ashley Hutsell

Fort Morgan, US

★★★★★ 5

Don’t leave home without it!

Color: Yellow, Size: 5.5" Lift

Excellent product. Light weight. Very durable material. Sleek design for easy storage. Perfect spacing for tandem axle trailer tire changes. Excellent value for the money.

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Reviewed in the United States on June 1, 2026