Head Seal 3.500" x 3.125" x 0.281" - Polyurethane

Marsoni

M251S

$33.46

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

Head Seal 3.500" x 3.125" x 0.281" - PolyurethaneProduct Details : Head Seal 3. 500" x 3. 125" x 0. 281" Polyurethane Part No: HS12 338 U92 Product Category: O Rings Product Type: Head Seal Material(s): Polyurethane Material Code: AU Durometer: 92A Temperature Range: 40F to +250F ( 40C to +121C) Pressure Range: ? 5000 PSI (? 345 Bar) System Of Measurement: Inch Replaces O Ring: 338 Bore Diameter: 3. 500" Dimensions: 3. 500" x 3. 125" x 0. 281" Nominal I. D. (d): 3. 125" Nominal O. D. (D): 3. 500"

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I was skeptical at first. How can such a quality performance air filter be so affordable? It fits perfectly and seems to perform and look exactly like the other name brand layered cotton gauze, steel meshed lifetime air filter. I sprayed some K&N oil on this thing and it feels like the engine is breathing a little easier now and performing a little better. As with anything new, your mileage will vary.

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Reviewed in the United States on October 19, 2025

Verified Purchase

big j

Whiting, US

★★★★★ 5

It's better than the paper filters

Awesome air filter 👌

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Reviewed in the United States on March 7, 2026