Specification sheetIssued 4 November 2026
Kenworth · truck
Kenworth T680
Kenworth T680 (current North American build): drawings are the standard hood with 76 in high-roof sleeper (and the standard hood day cab where noted), 6x4 tandem, set-back front axle, from the Kenworth Heavy Duty Body Builder Manual (September 2024). Engine figures are from the kenworth.com T680 page. US/Canada spec; no Kenworth GCC sheet found. All heights are from the bottom of the frame rail.
USA
- Bumper to front axle
- 1.283 m
- Front axle to back of cab
- 1.882 m
- Bumper to back of cab (day cab)
- 3.165 m
BFA
FAB
BBC
Dimensions
- Front axle to back of sleeper (76 in high-roof sleeper, standard hood)
- 3.548 m
- Front axle to rear of roof fairing (76 in high-roof sleeper)
- 4.039 m
- Bumper to back of sleeper (76 in high-roof sleeper, standard hood)
- 4.829 m
- Bumper to rear of roof fairing (76 in high-roof sleeper)
- 5.296 m
- Front axle to front of tilted hood (hood tilt clearance)
- 2.23 m
- Tilted hood height above frame (from bottom of frame rail)
- 2.047 m
- Sleeper roof height above frame
- 3.198 m
- Roof fairing height above frame (76 in high-roof sleeper, top of fairing)
- 3.238 m
- Day cab roof height above frame
- 2.129 m
- Day cab roof fairing height above frame (standard hood day cab)
- 3.231 m
- Width over mirrors (front view)
- 3.04 m
- Cab width (front view)
- 2.474 m
- Cab width (rear view)
- 2.101 m
- Frame width (outside of frame rails)
- 0.864 m
Engine
- Engine model (12.9 L)
- PACCAR MX-13
- Displacement (MX-13)
- 12.9 L
- Gross power (PACCAR MX-13)
- 405-510 hp
- Max torque (PACCAR MX-13)
- 1,550-1,850 lb-ft
- Engine model (10.8 L)
- PACCAR MX-11
- Displacement (MX-11)
- 10.8 L
- Gross power (PACCAR MX-11)
- 355-445 hp
- Max torque (PACCAR MX-11)
- 1,250-1,700 lb-ft
Transmission
- Transmission
- PACCAR TX-12 automated (with MX-13); PACCAR TX-18 and TX-18 PRO (with MX-11)
- Rear axle
- PACCAR DX-40 tandem axle (with MX-13)