2 0 Eaton-Fuller RTO15618 Transmission for a 1989 Peterbilt 379 $1,895 USD RTO15618 GOOD DYNO INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE CHECK NOTES, Serial#: NA, Core Charge: NA, Engine Make: Caterpillar, Engine Model: 3406B ConditionUsedEngine ModelCaterpillar 3406BFits To Make(s)PeterbiltFits To Model(s)379Will Fit Year(s)1989Part NumberRTO15618Stock Number41921-13 MLS Number10770705CategoryTransmissions Last Updated2/27/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info