Filler DEF Cap

Diesel Exhaust Fluid (DEF) filler cap (Part 90035431), designed for use on the DEF tank of Kalmar Ottawa terminal tractors and yard trucks. It seals the DEF tank opening to prevent contamination, evaporation, and spillage of Diesel Exhaust Fluid while still allowing easy access for refilling. It’s the official Kalmar specified cap that fits the DEF tank assembly and meets OEM fluid containment standards.