23 1 1994 Peterbilt 378 Tri Axle Sleeper Semi Truck - 36" Flat Top Sleeper, Detroit 450HP, 18 Speed Manual Newly Listed $57,500 USD 1994 Peterbilt 378, PRE-EMISSION, New Crate Motor Detroit 60 Series engine installed 170,000 miles ago w/paperwork, 450 HP, Reman 18 Speed Manual Transmission installed 170,000 miles ago... ConditionUsedUsage1,000,000 MilesDuty ClassHeavy Duty Sleeper Semi TruckHorse Power450 HPEngine ModelDetroit SERIES 60 12.7 DDEC IIIDrivetrain8x4Transmission18 Speed ManualSleeper TypeFlat Top SleeperSleeper Size36"SuspensionAir RideRear AxleTri AxleRear End52,500 lb 3.90 ratioStock NumberBTS3930 MLS Number14049336CategorySleeper Semi Trucks Last Updated12/18/2025 LocationGreat Falls, MT, US Sold ByBouma Truck Sales (855) 605-___ SHOWNUMBERCall Seller Email Seller Save More Info