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 air 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

Charts

Installation Instructions (PDF)

Guides & Documents

Air Filter Pre-Filters Installation Instructions (465253770)

Warranty Information

K&N Warranty Info (PDF)

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

K&N 25-3770 Specifications

KEY SPECS
MFG. Part #	25-3770
Brand	K&N

GENERAL
Shape	Round
Closed Top	No
Color	Red
Sold in Quantity	Each
GTIN Code	024844013002
Inside Diameter	14"
Overall Height	6"
Material Type	Foam
Wrap Type	Airforce Pre-Cleaner

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