Welcome to Walker Engineering – home of the Walker AIRSEP® closed crankcase system for diesel engines. Originally configured for marine applications, the AIRSEP® is now available for all applications that use diesel engines, such as trucks, buses, RVs, Industrial engines, and even power generation. New AIRSEPS® have been designed to meet the increasing popularity of natural gas-fueled engines, as well. For heavy-duty applications, our high-efficiency CCE® series AIRSEP® is the product of choice.

A private company, Walker Engineering offers innovative products that apply cutting edge technology to solve problems in a unique and cost effective manner. Our FUELSEP® and ALGAESEP® products add quality, value, and emissions reduction to any diesel powered boat, vehicle or facility. Go with the name you can depend on and trust … Walker Engineering.

Our Some Products


Ekran Resmi 2022-03-25 14.00.59

The Only No-Maintenance Closed Crankcase Breather For Caterpillar


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