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Airsep System

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Modification 3

The last modification we decided to try on our intake extravaganza was a system that solves a problem all Cummins owners hate: The crankcase oil vent that dumps out above the steering box and front differential. It's the source that coats every part under the truck with a grime-grabbing film of motor oil. Walker Engineering of Sun Valley, California has solved this annoying problem. The company builds a bolt-on kit, called an Airsep, which connects to the Cummins crankcase vent and returns the oil vapor to the oil pan where it belongs.