Auxiliary FT90

Fuel Tank Only

The fuel tank only Auxiliary Fuelbox FT90 is constructed of high-quality .125 marine grade aluminum; it has true flange weld seam design, which doubles weld joint thickness for stronger welds. The auxiliary tank includes a minimum of 2 interior baffles. The tank comes with the auxiliary plate to use our AFC computerized auxiliary system.

Vehicle Applications 

  • Long bed Chevy, Dodge, Ford, GMC


  • Auto Fuel Controller
  • Fuel Transfer Pump
  • Bed Liner Spray On Finish


  • FT90 Auxiliary $1,175 Diamond Plate
  • FT90 Auxiliary $1,225 Smooth
  • Spray On Liner Outside $150
  • Auto Fuel Controller and complete install kit with instructions $395
  • TP15 transfer pump kit $475
  • Locking Gas Cap $16.99
  • BedStep $295
View Ordering Intructions
Model Gal. A B C D E
FT90 85 19.5 in. 25 in. 60 in. 53 in. N/A

NOTE: Add 2 in. to dimension A for AFC cover plate.