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The Cat 745 with a 25 m³ (32.7 yd³) 41 tonnes (45.2 tons) capacity brings a new level of operator comfort and features to the market in addition to the durability, high productivity and lower operating costs Cat Articulated Trucks are known for. The all-new operator cabin is a leap into the next generation for Articulated Trucks, providing our operators the best place to help build the future.

Cat Specs
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Engine

Gross Power - SAE J1995
511 hp
Net Power - SAE J1349:2011
496 hp
Net Power - ISO 14396
504 hp
Bore
5.7 in
Note (4)
DEF used in Cat SCR systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1. ISO 22241-1 requirements are met by many brands of DEF, in
Stroke
7.2 in
Displacement
1106 in²
Emissions
The 745 meets Tier 4 Final and Stage V emission standards.
Note (1)
The power ratings apply at rated speed of 1,700 rpm when tested under the conditions for the specified standard.
Note (2)
The net power advertised is the power available at the flywheel when the engine is equipped with alternator, air cleaner, muffler and fan at minimum speed.
Note (3)
Net power when the fan is at maximum speed is 348 kW (467 hp) per the SAE reference conditions.
Engine Model
Cat C18
Peak Engine Torque Speed
1200 r/min
Peak Engine Torque Gross (SAE J1995)
1931 ft·lbf
Peak Engine Torque Net (SAE J1349)
1887 ft·lbf

Weights

Rated Payload
45.2 ton (US)

Body Capacities

Heaped (SAE 2:1)
33.4 yd³
Struck
26 yd³
Tailgate Heaped SAE 2:1
35.7 yd³
Tailgate Struck
25.5 yd³

Service Refill Capacities

Engine Crankcase
13.7 gal (US)
Final Drive - Each
1.3 gal (US)
DEF Tank
5.3 gal (US)
Steering/Hoist Hydraulic System
36.9 gal (US)
Cooling System
23.7 gal (US)
Fuel Tank
145.3 gal (US)

Transmission

Forward - 6
14.2 mile/h
Forward - 7
19.6 mile/h
Forward - 3
7 mile/h
Forward - 1
3.8 mile/h
Forward - 4
8.8 mile/h
Forward - 2
5 mile/h
Forward - 5
11.6 mile/h
Reverse - 1
4 mile/h
Reverse - 2
9.1 mile/h

Sound Levels

Interior Cab
72 dB(A)
Note (1)
The operator sound exposure Leq (equivalent sound pressure level) measured according to the work cycle procedures specified in ANSI/SAE J1166 OCT98 is 76 dB(A), for the cab offered by Caterpillar, whe
Note (2)
Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in noisy environments.

Standards

Brakes
ISO 3450 – 2011
Cab - FOPS
ISO 3449 Level II – 2005
Cab - ROPS
ISO 3471 – 2008
Steering
ISO 5010 – 2019

Operating Weights

Front Axle - Empty
42285 lb
Front Axle - Loaded
55248 lb
Total - Empty
72995 lb
Total - Loaded
163385 lb
Rear Axle - Rated Load
38713 lb
Center Axle - Empty
15653 lb
Center Axle - Loaded
54366 lb
Front Axle - Rated Load
12963 lb
Total - Rated Load
90389 lb
Rear Axle - Empty
15653 lb
Rear Axle - Loaded
53771 lb
Center Axle - Rated Load
38713 lb

Turning Circle

Turning Dimensions - SAE Turning Radius
340 in
Turning Dimensions - Aisle Width
233 in
Turning Dimensions - Clearance Radius
356 in
Note
Dimensions are for machines equipped with 29.5R25 tires.
Turning Dimensions - Steer Angle - Left/Right
45 deg
Turning Dimensions - Inside Radius
174 in

Body Plate

Type
High Strength Brinell HB450 Wear Resistant Steel

Steering

Lock to Lock
4.8 seconds @ 60 rpm