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MT 653DR Specification Sheet

SPECIFICATIONS
P&D, Utility Truck and Dump Truck Rating
Net input power 250 hp (186 kW)
Net input torque 640 lb-ft (868 N·m)
Vehicle weight Up to 73,280 lbs (33,240 kg) GVW or GCW

Fire Truck Pumper, Non-Pumper and Aerial Truck Rating
Net input power 250 hp (186 kW)
Net input torque 640 lb-ft (868 N·m)
Vehicle weight Up to 55,000 lbs (24,948 kg) GVW

Agricultural Hauler and Agricultural Spreader Rating
Net input power 250 hp (186 kW)
Net input torque 640 lb-ft (868 N·m)
Vehicle weight Up to 55,000 lbs (24,948 kg) GVW or up to 80,000 lbs (32,288 kg) GCW


ENGINE INTERFACE
Acceptable full-load engine governed speed 2200-4000 rpm
Minimum engine idle speed
(with transmission in drive)
500 rpm


MOUNTING
Engine SAE No. 2
Chassis Four-bolt mounting pad, each side
(Rear support required for some installations)


TORQUE CONVERTER STALL TORQUE RATIO Kp-FACTOR* AT STALL
TC-350 3.04 173.8 (149.2)
TC-360 2.86 142.2 (122.1)
TC-370 2.40 115.3 (99.0)
TC-378 2.27 114.0 (97.9)
TC-380 1.82 92.7 (79.6)
*Kp-Factor defines torque converter capacity. Kp = the ratio of converter pump speed [rpm] divided by the square of pump torque [lb-ft (N·m)].


MECHANICAL RATIOS (RANGE)*
First
8.05:1
Second
3.58:1
Third
2.09:1
Fourth
1.39:1
Fifth
1.00:1
Reverse
-5.67:1


RATIO COVERAGE
Forward
8.05
*Gear ratios do not include torque converter multiplication.


CONTROL SYSTEM
Description Hydraulic
Driver-to-Transmission Interface Customer furnished cab-mounted shift selector


CONVERTER-DRIVEN POWER TAKEOFF PROVISION ? RIGHT SIDE
PTO drive gear rating Continuous ? 1.00 x turbine speed, 300 lb-ft (407 N·m)


SPEEDOMETER PROVISION (Only one may be specified)
Optional Speed Sensor Gear 16-tooth gear for magnetic pickup
Optional Mechanical Drive Gear 5-tooth helical drive gear for mechanical driven gear
Optional Mechanical Drive Gear 8-tooth helical drive gear for mechanical driven gear
Location Transmission rear cover


OIL SYSTEM
Oil type Dexron® III, C4
Capacity (excluding external circuits) 15.0 qts (14.0 liters) standard oil pan
12.0 qts (11.0 liters) optional shallow oil pan
Filters ? main and cooler (optional) Replaceable element, remote mounted


SIZE
Length* 35.6 in (902 mm)
Depth (below transmission centerline) 12.7 in (324 mm) standard oil pan
12.0 in (305 mm) optional shallow oil pan
Weight (dry) 602 lbs (273 kg)
*Length from engine housing to output flange face.


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