Cummins Kit: 6CTA to 450HP from WALKER ENGINEERING
The Walker AIRSEP is the premiere closed crankcase system that incorporates three systems in one. The unit includes a washable high performance air filter, a crankcase fumes disposal feature, and an integrated air intake silencer, all in one compact package. No more noxious crankcase odors in your salon or living areas. The AIRSEP has been factory installed by major diesel engine manufacturers worldwide since 1989, and popular kits for Caterpillar, Cummins, and Detroit Diesel are listed here.

Caterpillar Kit: 3208TA 375 & 435HP from WALKER ENGINEERING
The Walker AIRSEP is the premiere closed crankcase system that incorporates three systems in one. The unit includes a washable high performance air filter, a crankcase fumes disposal feature, and an integrated air intake silencer, all in one compact package. No more noxious crankcase odors in your salon or living areas. The AIRSEP has been factory installed by major diesel engine manufacturers worldwide since 1989, and popular kits for Caterpillar, Cummins, and Detroit Diesel are listed here.

Cummins Kit: 6BTA to 370HP from WALKER ENGINEERING
The Walker AIRSEP is the premiere closed crankcase system that incorporates three systems in one. The unit includes a washable high performance air filter, a crankcase fumes disposal feature, and an integrated air intake silencer, all in one compact package. No more noxious crankcase odors in your salon or living areas. The AIRSEP has been factory installed by major diesel engine manufacturers worldwide since 1989, and popular kits for Caterpillar, Cummins, and Detroit Diesel are listed here.

Air Filter for Cummins Engine 6CTA, 420hp, Straight, 7.5" x 8" from WALKER ENGINEERING
These genuine replacement air filter elements are designed and manufactured to meet Walker's strict standards for high performance air flow, multi-ply construction, and product quality. Air filters are available in popular sizes to equip your Caterpillar®, Detroit Diesel®, or Cummins® marine engines. Please measure your filter carefully before ordering (shape and filter size should not be changed from original equipment as springs and tops will not fit properly).

Air Filter for Caterpillar Engines 3116/3304/3408, Detroit Diesel Engine 8V71 2 Turbo, All HP, Tapered, 7.5" x 8" from WALKER ENGINEERING
These genuine replacement air filter elements are designed and manufactured to meet Walker's strict standards for high performance air flow, multi-ply construction, and product quality. Air filters are available in popular sizes to equip your Caterpillar®, Detroit Diesel®, or Cummins® marine engines. Please measure your filter carefully before ordering (shape and filter size should not be changed from original equipment as springs and tops will not fit properly).

Air Filter for Detroit Diesel Engines 671 Natural/Turbo, 8V71 Natural, 12V71 2 Turbo, 6V92 2 Turbo, 8V92 1 Turbo/2 Turbo, 12V92 Natural, All HP, Tapered, 9" x 9" from WALKER ENGINEERING
These genuine replacement air filter elements are designed and manufactured to meet Walker's strict standards for high performance air flow, multi-ply construction, and product quality. Air filters are available in popular sizes to equip your Caterpillar®, Detroit Diesel®, or Cummins® marine engines. Please measure your filter carefully before ordering (shape and filter size should not be changed from original equipment as springs and tops will not fit properly).