Allis Chalmers 7045

Last Updated: July 2024

Overview

The Allis Chalmers 7045 is a large, powerful row-crop tractor with a 426 cubic inch, six-cylinder turbocharged diesel engine delivering 136.65 horsepower at 2200 rpm. It features partial power shift transmissions with up to 20 forward and 4 reverse gears, hydrostatic power steering, and a maximum torque of 393 lb-ft at 1500 rpm with 41.5% torque rise. The hydraulic system has a pump delivery rate of 19.1 GPM and can exert up to 9045 lbs of force. Fuel efficiency is rated at 13.97 HP-hr/gal at rated speed.
Show more...

Key Specifications

Category: Row Crop

Power Output: 136.65

Transmission: Partial power shift

Drive Type: 2WD

Operating Weight: 14500 (without duals), 18990 (Ballasted)

Fuel Type: Diesel

Allis Chalmers 7045 vs. Similar Tractors

Power Output
Average
Greater than 64% of similar tractors.
Hitch Capacity
Excellent
Greater than 96% of similar tractors.
Operating Weight
Average
Greater than 58% of similar tractors.

Technical Specifications

Engine

Manufacturer
Allis Chalmers
Model
670T
Cooling Type
Liquid-cooled
Cylinder Orientation
Inline
Valve Configuration
-
Fuel Type
Diesel
Induction Type
Turbocharged
Cylinders
6
Displacement (ci)
426
Bore (in)
4.25
Stroke (in)
5
Rated RPM
2300
Power Output (hp)
136.65

Transmission

Type
Partial power shift
Forward Gears
20 (Main Option), 12 (Secondary Option)
Reverse Gears
4 (Main Option), 2 (Secondary Option)
Total Gears
-

Dimensions

Length (in)
168
Width (in)
95.5
Height (in)
116 (to exhaust)
Operating Weight (lb)
14500 (without duals), 18990 (Ballasted)

Power Take-Off (PTO)

PTO Type
Independent
PTO Speed 1 (rpm)
540
PTO Speed 2 (rpm)
1000
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
4×2 2WD
Drive Type
2WD
Steering Type
Hydrostatic power
Coolant Capacity (qts)
31
Front Tire Diameter (in)
-
Front Tire Width (in)
-
Rear Tire Diameter (in)
-
Rear Tire Width (in)
-
Front/Rear Rim Diameter (in)
-
Tire Type
Ag
Manufacture - End Year
1981
Hitch Type
Category III/II
Hitch Category
III/II
Hitch Position
Rear
Hitch Capacity (lb)
6680 (at 610mm/24 in)
Operator Station Type
Acousta-Cab or Four-post ROPS (optional)
Starter Type
Electric
Brake Type
Differential hydraulic wet discs
Hydraulic System Type
Closed center

Test Results

Nebraska Tractor Test Laboratory - Test Date: 1977

Maximum Power and Fuel Consumption

  • Maximum Power (PTO, Rated Engine Speed): 132.24 HP (98.61 kW) at 2200 rpm
  • Fuel Consumption at Maximum Power: 9.30 Gal/hr (35.20 l/h) with a fuel efficiency of 0.461 lb/hp.hr (0.280 kg/kW.h)

Drawbar Performance

  • Power at Rated Engine Speed (10th Gear): 117.75 HP (87.80 kW) with a drawbar pull of 7942 lbs (35.32 kN) and a speed of 5.38 mph (8.66 km/h)
  • Fuel Consumption at Rated Speed: 0.487 lb/hp.hr (0.296 kg/kW.h) with a fuel efficiency of 14.43 Hp.hr/gal (2.84 kW.h/l)

Torque and Engine Performance

  • Maximum Torque: 386 lb.-ft. (523 Nm) at 1600 rpm
  • Torque Rise: 25.4%

Hydraulic Performance

  • Pump Delivery Rate: 22.6 GPM (85.6 l/min) at 2200 psi (152 bar)

Overall Efficiency

  • Fuel Efficiency at Standard PTO Speed (1000 rpm): 14.90 Hp.hr/gal (2.93 kW.h/l)
  • Fuel Consumption: 8.49 Gal/hr (32.14 l/h) at 2200 rpm



Nebraska Tractor Test Lab. (1977). Test 1261: Allis-Chalmers 7045 Power Director Diesel. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/1580

Compare with Similar Tractors

Compare with random tractors from our database