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12-12 Edition 47
On-Highway Trucks
Specifications
General Specifications
Model
BBC
Chassis
Engine
CT660S SBA 116"
6x4, 8x6
13L
CT660L SBA 122"
4x4, 6x6
13L
CT680 SFA
124"
6x4, 8x6
13L
CT681 SFA
114"
6x4
13L
Engine Specifications
Engine
BHP/GT (lbf-ft)
CT13
365/1250; 370/1350; 390/1450; 410/1450;
430/1550; 475/1700
NOTE:
CT681 available with Front Engine PTO.
Gov. Speed RPM = 2100
Available CT681 hp ranges: 365-430 hp
Wheelbase
Variable: 138" – 394"
Transmission
Cat CX31 Power Shift Automatic, (6 Fwd, 1 Rev) Speeds
(2 PTO’s Std.) Opt. Rear PTO
Eaton Manual 10, 11, 13, 18 Speeds
Eaton UltraShift PLUS Vocational 10, 13, 15, 18 Speeds
Frame
(120,000 psi steel)
12.25 × 3.375 × 0.375
SM = 21
RBM = 2,520,000 lb
12.65 × 3.5 × 0.5
SM = 29
RBM = 3,458,580 lb
13.03 × 3.687 × 0.6880
SM = 40
RBM = 4,865,748 lb
NOTE:
CT681 available with Integral Front Frame Extension.
Axles
(Meritor/Dana Spicer)
13,200 lb – 23,000 lb Front
40,000 lb — 70,000 lb Rear
Suspension
(Hendrickson, Chalmers, Neway)
Front: Multi Leaf (Shackle or Slipper type)
Front: Parabolic Taper Leaf
Rear: Walking Beam, Air, Spring
Brakes
(Bendix and Merritor)
ABS and ASA Standard
Front Disc Brakes for Tractor 16K Axle and above
Opt.: Traction and Stability Control
Fuel Tanks
60, 80, 100, 120 U.S. gal
Polished/non polished aluminum
Dual tanks optional
GVWR
Variable: Based on Frame, Wheelbase, Axles, Suspension,
Brakes, Wheels, and Tires selected. Also, Federal
and State Laws.
Lift Axles
(Watson and Chalin)
6x4: CT660 and CT681
Pusher Type: 8000 lb-20,000 lb
Tag Type: 13,200 and 20,000 lb