K&N 20-23 GM 2500/3500 6.6L Oil Separator Catch Can

K&N 20-23 GM 2500/3500 6.6L Oil Separator Catch Can

Marsoni

M251S

$157.99

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

K&N 20-23 GM 2500/3500 6.6L Oil Separator Catch CanSKU: 81 0812 UPC: 024844401366 K&N 2020 2025 Chevrolet Silverado GMC Sierra 2500 3500 HD 6. 6L Oil Separator Catch Can 81 0812 The K&N 81 0812 Air Oil Separator captures blow by oil in a 6oz high capacity reservoir to shield your 6. 6L engine and intake tract from contamination. Designed for 2020 2025 Chevy Silverado 2500 HD 3500 HD and GMC Sierra 2500 HD 3500 HD models it prevents power loss and detonation while reducing oil buildup. Quick 30 minute

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Much thinner than I expected, but installation went better than I'd thought it would. Needed to line the interior of the engine cover of a Ford E450 RV. Tried nitrile gloves, but they stuck to the material so did it bare handed. Cut easily with a fresh razor blade. Pressed in place with a plastic putty knife. We'll see the effectiveness on the next trip.

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Reviewed in the United States on July 3, 2025

Verified Purchase

Kev

Whiting, US

★★★★★ 5

Makes For Quiet Rides

Model: 10 SqFt(0.95 SqM)

Comparable quality and performance to name brand competitor. It sticks on strong, easy to apply, and does make a difference in sound reduction. Turn your hollow shell sounding vehicle panels into solid sounding walls.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 15, 2026