1 0 Eaton-Fuller RTX14615 Transmission for a 1991 Peterbilt 379 Newly Listed $1,995 USD RTX14615 INSPECTED AND DYNO TESTED 90 DAY WARRANTY, Serial#: GET, Engine Make: Caterpillar, Engine Model: 3406B ConditionUsedEngine ModelCaterpillar 3406BFits To Make(s)PeterbiltFits To Model(s)379Will Fit Year(s)1991Stock Number100525-8 MLS Number13883139CategoryTransmissions Last Updated10/14/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info