The T660 replaced the T600 for EPA 2007 emissions, adding multiplexed wiring and onboard diagnostics while keeping the fuel-saving aerodynamic profile, before being succeeded by the T680.
Built by
PACCAR
Production
2008–2017
Body type
Sleeper
Rating
Up to 80,000 lb GCWR
Power
Up to 600 hp
Typical jobs
Long-haul, Regional
Engine options
PACCAR MX-13Cummins ISX15Caterpillar C15
Common parts that fit
View all →Common replacement parts for this class of truck. Confirm exact fitment for your engine and config with Mike before ordering.
3030HNTRX
3030HNTRX - 3030 SPEC LONG SHAFT HNTRX BRAKE CHAMBER
OTR10143
OTR10143 - AUTO SLACK ADJUSTER, 11/2-10DRIVE 5.5,6.5
5-808330
5-808330 - BRAKE KIT FOR 4709DEN SHOES
370036A
370036A - OIL BATH SEAL
348-4195
348-4195 - HUB CAP (SENTINAL LARGE DIAM)
5008414PGBXW
5008414PGBXW - AIR DRYER CARTRIDGE, PURAGUARD
11444
11444 - GLADHAND BRACKET MOUNT
15W40 OIL
15W40 OIL - 15W40 OIL (ROTELLA) GAL JUG