Engine Model Cat C18 ACERT
Bore 5.7 in (145 mm)
Stroke 7.2 in (183 mm)
Displacement 1106 in³ (18.1 l)
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.


Engine Model Cat C18 ACERT
Bore 5.7 in (145 mm)
Stroke 7.2 in (183 mm)
Displacement 1106 in³ (18.1 l)
Engine Model - U.S. EPA Tier 4 Final, EU Stage IV, Japan 2014, Korea Tier 4 Final Cat® C18 ACERT™
Gross Power - SAE J1995 511 HP (381 kW)
Net Power - ISO 14396 504 HP (376 kW)
Net Power - SAE J1349 496 HP (370 kW)
Rated Payload 45.2 t (41 t)
Heaped (SAE 2:1) 32.7 yd³ (25 m³)
Struck 24.2 yd³ (18.5 m³)
Tailgate Heaped SAE 2:1 34.7 yd³ (26.5 m³)
Tailgate Struck 25.5 yd³ (19.5 m³)
Forward - 1 3.8 mile/h (6.1 km/h)
Forward - 2 5 mile/h (8.1 km/h)
Forward - 3 7 mile/h (11.2 km/h)
Forward - 4 8.8 mile/h (14.1 km/h)
Forward - 5 11.6 mile/h (18.7 km/h)
Forward - 6 14.2 mile/h (22.9 km/h)
Forward - 7 19.6 mile/h (31.5 km/h)
Reverse - 1 4 mile/h (6.4 km/h)
Reverse - 2 9.1 mile/h (14.6 km/h)
Interior Cab 72 dB(A) (72 dB(A))
Center Axle - Empty 15309 lb (6944 kg)
Center Axle - Loaded 54000 lb (24494 kg)
Center Axle - Rated Load 38691 lb (17550 kg)
Front Axle - Empty 43515 lb (19738 kg)
Front Axle - Loaded 56522 lb (25638 kg)
Front Axle - Rated Load 13007 lb (5900 kg)
Rear Axle - Empty 14731 lb (6682 kg)
Rear Axle - Loaded 53422 lb (24232 kg)
Rear Axle - Rated Load 38691 lb (17550 kg)
Total - Empty 73553 lb (33363 kg)
Total - Loaded 163942 lb (74363 kg)
Total - Rated Load 90390 lb (41000 kg)
Type High Strength Brinell HB450 Wear Resistant Steel
Fuel Tank 145.3 gal (US) (550 l)
Cooling System 23.7 gal (US) (90 l)
Engine Crankcase 13.7 gal (US) (52 l)
DEF Tank 5.3 gal (US) (25 l)
Steering/Hoist Hydraulic System 36.9 gal (US) (140 l)
Transmission - OTG 19.8 gal (US) (75 l)
Brake Cooling Tank 17.69 gal (US) (67 l)
Raise (automatic) 13 s (13 s)
Raise (manual) 12 s (12 s)
Lock to Lock 4.8 seconds @ 60 rpm
Brakes ISO 3450 – 2011
Cab - FOPS ISO 3449 Level II – 2005
Cab - ROPS ISO 3471 – 2008
Steering ISO 5010 – 2007
Note Dimensions are for machines equipped with 29.5R25 tires.
Turning Dimensions - Aisle Width 233 in (5917 mm)
Turning Dimensions - Clearance Radius 356 in (9082 mm)
Turning Dimensions - Inside Radius 174 in (4413 mm)
Turning Dimensions - SAE Turning Radius 340 in (8625 mm)
Turning Dimensions - Steer Angle - Left/Right 45 deg
Forward - 8 23.5 mile/h (37.9 km/h)
Lower (automatic) 10 s (10 s)
Lower (manual) 10 s (10 s)
Base 0.55 in (14 mm)
Chute 0.55 in (14 mm)
Front 0.28 in (7 mm)
Side 0.43 in (11 mm)
Emissions The 745 meets Tier 4 Final/Stage IV emission standards.
No Engine De-rating Required Below 10000 ft (3050 m)
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.
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, including those that carry the AdBlue or API certifications.
Peak Engine Torque Gross (SAE J1995) 1931 ft·lbf (2618 N·m)
Peak Engine Torque Net (SAE J1349) 1887 ft·lbf (2558 N·m)
Peak Engine Torque Speed 1200 r/min (1200 r/min)
Hydraulic Excavator: 374 - Passes 5
Hydraulic Excavator: 390 - Passes 4
Note An optimum system match gives you a major productivity advantage. Having matched loading and hauling tools results in increased production and lower system costs per unit of volume moved.
Wheel Loader: 972 - Passes 4-5
Wheel Loader: 980 - Passes 4-5
Wheel Loader: 982 - Passes 4
Axles - Each 15.8 gal (US) (60 l)
Final Drive - Each 1.3 gal (US) (5 l)
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, when properly installed and maintained and tested with the doors and windows closed.
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.
Forward - 9 34 mile/h (54.8 km/h)

Benefits and Features

Offering both automatic and manual options, the system gives operators flexibility to choose their preferred method of control. When using the automatic system to tip a load, the machine neutralizes the transmission, applies the service brakes and hoists the body to maximum angle at the required engine rpm. When lowering the body this feature prevents a hard stop onto frame, eliminating shock loads and potential damage. Automatic use can reduce operator interactions by up to 50 percent depending on the site tipping procedure.

Also incorporated into the lever are waiting brake, transmission hold, machine speed limiter and parking brake selection. This gives operating a more automotive feel. No separate switch is now needed; you just push the lever into park.

This provides a greater number of operators with the ability to tailor their seating position for a more comfortable working day. The seat is fitted with variable climate control as standard.

A reduction to in-cab noise (–7 dB from previous model) contributes to a more comfortable working environment for the operator, all day, every day.

Every Tier 4 Final/Stage IV Cat engine with ACERT Technology is equipped with a combination of proven electronic, fuel, air and aftertreatment components. The right technologies fine-tuned for the right applications result in:

  • All new Eco mode, which can provide an average reduction in fuel consumption of 5 percent over normal operation.
  • High machine performance across all applications.
  • Enhanced reliability through commonality and simplicity of design.
  • Maximized uptime and reduced cost with world-class support from the Cat dealer network.
  • Minimized impact of emission systems: designed to operate without requiring interaction.
  • Durable designs with long life to overhaul.
  • Delivering better fuel economy with minimized maintenance costs while providing the same great power and response.

DEF is a precisely mixed solution of 32.5 percent high purity chemical grade urea and 67.5 percent de-ionized water.

The Cat High Density Power Shift (HDPS) nine-speed forward, two-speed reverse transmission, designed specifically for Articulated Trucks, features Advanced Productivity Electronic Control Strategy (APECS) and Electronic Clutch Pressure Control (ECPC) that deliver smooth gear changes with improved acceleration and higher productivity.

Speed hold/limiting function allows the machine speed to be limited in 1 km/h or 1 mph steps to conform to site speed restrictions.

Gearshifts are configured to maintain direct drive lock-up, and reduce dropping into converter drive. Decreasing the use of torque converter drive aids in maintaining ground speed and gradeability.

Variable gearshift points are used based on the operating conditions, which also aid in maintaining ground speed during gear changes on grades.

Clutches are automatically disengaged when ground conditions allow, maximizing efficiency when steering or when on uneven ground.

AATC reduces tire and driveline abuse, eliminating lost machine efficiencies caused by improper manual operation of the differential clutches and reducing the cost of premature tire replacement.

Cat Connect makes smart use of technology and services to improve your job site efficiency. Using the data from technology-equipped machines, you'll get more information and insight into your equipment and operations than ever before.

Cat Connect technologies offer improvements in these key areas:

Equipment Management – increase uptime and reduce operating costs.

Productivity – monitor production and manage job site efficiency.

Safety – enhance job site awareness to keep your people and equipment safe.

All Cat Articulated Trucks are designed to maximize efficiency and productivity while conserving natural resources.