Published: 05/08/2026 3:55 PM 
Modified: 06/02/2026 10:20 AM 1999 Peterbilt 378 Daycab For Sale – Schleswig, Iowa 51461
Clean, hard-to-find 1999 Peterbilt 378 Daycab that is ready to work. This truck has been extremely well maintained and has had major updates completed, including a complete remanufactured Detroit motor with only 25,000 miles. Rust-free trucks in this kind of condition are getting very difficult to find.
Truck Specifications:
• 515 HP DD4 12.7 Detroit
• Complete reman motor with only 25K miles
• Approximately 1.5 million miles on chassis
• 10-speed transmission
• 4.11 rear-end ratio
• 46,000 lb rear ends
• Runs 75 MPH at 1,800 RPM
• 200” wheelbase
• 24.5 tall rubber
• 80% brakes
• 80% tires
Recent Updates & Maintenance:
• New exhaust
• New belts
• New headlights
• New king pin bushings
• New shackle bushings
• Rebuilt 5th wheel
• New shift fork shims
• Complete fresh service front to back
Additional Highlights:
• Zero oil leaks
• Zero air leaks
• All original interior
• Exceptionally clean and rust free for its age
• Strong-running, dependable truck ready to hit the road immediately
If you’re looking for a solid, mechanically sound Peterbilt that has already had the expensive work completed, this is a truck worth taking a serious look at.
