K&N Engineering · New
K&N Universal Airforce Pre-Cleaner Air Filter Foam Wrap - Round Straight - Red
MPN 25-3750 · Store SKU knn25-3750
Supplier stock checked 11/7/2026, 7:24:37 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
The K&N Airforce Pre-Cleaner is a specially designed foam filter wrap made to extend the service interval of your K&N air filter when used in very dusty conditions. The Airforce Pre-Cleaner is designed to be cleaned with K&N Cleaner or soap & water. Red colored Airforce pre-cleaners are oiled with K&N air filter oil after they are cleaned. They are made from large, open cell foam. Gray colored Airforce pre-cleaners do not use oil. They have smaller foam cells. The K&N Airforce pre-cleaner is a specially designed foam filter wrap made to extend the service interval of a K&N air filter when used in very dusty conditions. Red colored pre-cleaners are oiled while gray colored pre-chargers are not. PRECLEANER WRAP 14in.DIA. X 4in.H Air Filter Foam Wrap
Manufacturer fitment & guides
Check 25-3750 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
