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AirDog
AirDog A7SABC513 II-5G DF-165-5G Air/Fuel Separation System
Sale price$849.99
Regular price$879.99
AirDog
AirDog A7SPBC260 II-5G DF-1005G Air/Fuel Separation System
Sale price$819.99
Regular price$849.99
AirDog
AirDog A4SPBC186 FP-100-4G Air/Fuel Separation System
Sale price$719.99
Regular price$739.99
AirDog
AirDog A4SPBC189 FP-150-4G Air/Fuel Separation System
Sale price$739.99
Regular price$759.99
AirDog
AirDog A4SPBC191 FP-150-4G Air/Fuel Separation System
Sale price$739.99
Regular price$759.99
AirDog
AirDog A4SPBC190 FP-100-4G Air/Fuel Separation System
Sale price$719.99
Regular price$739.99
Not sure it fits your truck?
Our Wildwood, FL techs will confirm the right part for your build before you buy.
Call or Text (352) 722-5295Shop the full lineup of AirDog fuel systems and lift pumps at Southern Diesel Supply. AirDog air/fuel separation systems deliver clean, air- and vapor-free diesel to your injection pump — improving horsepower, throttle response, fuel economy, and injector life on Cummins, Duramax, and Powerstroke trucks.
AirDog systems we carry
- AirDog II-4G & II-5G — flagship air/fuel separation systems
- AirDog 4G lift pumps — 100, 150, and 165 GPH options for stock-to-performance builds
- AirDog Raptor — direct-fit replacement lift pumps for stock fuel systems
- Replacement fuel filters, water separators, and service kits
Shop AirDog by engine
- Dodge & Ram Cummins — 5.9L 12-valve & 24-valve, 6.7L
- Chevy & GMC Duramax — LB7, LLY, LBZ, LMM, LML, L5P
- Ford Powerstroke — 6.0L, 6.4L, 6.7L
Not sure which AirDog system fits your truck? Match the kit to your year, make, and engine — or reach out to our team for help dialing in the right GPH and mounting setup.










