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 |
| Gross Power (SAE J1995) | 511hp |
| Net Power (SAE J1349) | 496hp |
| Engine Power (ISO 14396) | 504hp |
| Bore | 5.7in |
| Stroke | 7.2in |
| Displacement | 1106in³ |
| Note (1) | Advertised power is tested at 1,700 rpm. |
| Note (2) | Advertised power is tested per the specified standard in effect at the time of manufacture. |
| Note (3) | The net power advertised is the power available at the flywheel when the engine is equipped with alternator, air cleaner, aftertreatment and fan at minimum speed |
| Note (4) | Net power when the fan is at maximum speed is 348 kW (467 hp) per the SAE reference conditions. |
| Note (5) | The C18 meets U.S. EPA Tier 4 Final/EU Stage V emission standards. |
| Note (6) | Diesel exhaust fluid (DEF) used in Cat selective catalytic reduction (SCR) systems must meet the requirements outlined in ISO 22241-1. ISO 22241-1 requirements are met by many brands of DEF, including those that carry the AdBlue or API certifications. |
| No Engine De-rating Required Below | 10000ft |
| Peak Engine Torque Gross (SAE J1995) | 1931ft·lbf |
| Peak Engine Torque Net (SAE J1349) | 1887lbf·ft |
| Peak Engine Torque Speed | 1200r/min |
| Rated Payload | 45.2t |
| Heaped (SAE 2:1) | 33.4yd³ |
| Struck | 26yd³ |
| Tailgate Heaped SAE 2:1 | 35.7yd³ |
| Tailgate Struck | 27.3yd³ |
| Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. • If equipped with R134a (Global Warming Potential = 1430), the system con |
| Forward - 1 | 3.8mile/h |
| Forward - 2 | 5mile/h |
| Forward - 3 | 7mile/h |
| Forward - 4 | 8.8mile/h |
| Forward - 5 | 11.6mile/h |
| Forward - 6 | 14.2mile/h |
| Forward - 7 | 19.6mile/h |
| Forward - 8 | 23.5mile/h |
| Forward - 9 | 34mile/h |
| Reverse - 1 | 4mile/h |
| Reverse - 2 | 9.1mile/h |
| Interior Cab | 72dB(A) |
| Note (1) | The declared dynamic operator sound pressure level is 72 dB(A) when ISO 6396:2008 is used to measure the value for an enclosed cab. The measurement was conducted at 70% of the cooling fan’s maximum speed. The sound level may vary at different cooling fan |
| 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. |
| Front Axle - Empty | 42285lb |
| Center Axle - Empty | 15653lb |
| Rear Axle - Empty | 15058lb |
| Total - Empty | 72995lb |
| Front Axle - Rated Load | 12963lb |
| Center Axle - Rated Load | 38713lb |
| Rear Axle - Rated Load | 38713lb |
| Total - Rated Load | 90389lb |
| Front Axle - Loaded | 55248lb |
| Center Axle - Loaded | 54366lb |
| Rear Axle - Loaded | 53771lb |
| Total - Loaded | 163385lb |
| Type | High Strength Brinell HB450 Wear Resistant Steel |
| Front | 0.28in |
| Chute | 0.55in |
| Side | 0.43in |
| Base | 0.55in |
| Raise (manual) | 12s |
| Raise (automatic) | 13s |
| Lower (manual) | 10s |
| Lower (automatic) | 10s |
| Fuel Tank | 145.3gal (US) |
| DEF Tank | 5.3gal (US) |
| Cooling System | 23.7gal (US) |
| Brake Cooling Tank | 17.7gal (US) |
| Steering/Hoist Hydraulic System | 36.9gal (US) |
| Engine Crankcase | 13.7gal (US) |
| Transmission - OTG | 19.8gal (US) |
| Final Drive - Each | 1.3gal (US) |
| Axles - Each | 15.8gal (US) |
| Brakes | ISO 3450 – 2011 |
| Cab - FOPS | ISO 3449 Level II – 2005 |
| Cab - ROPS | ISO 3471 – 2008 |
| Steering | ISO 5010 – 2019 |
| Turning Dimensions - Steer Angle - Left/Right | 45 deg |
| Turning Dimensions - SAE Turning Radius | 340in |
| Turning Dimensions - Clearance Radius | 356in |
| Turning Dimensions - Inside Radius | 174in |
| Turning Dimensions - Aisle Width | 233in |
| Note | Dimensions are for machines equipped with 29.5R25 tires. |
| Lock to Lock | 4.8 seconds @ 60 rpm |
| Hydraulic Excavator: 390 - Passes | 4 |
| Hydraulic Excavator: 374 - Passes | 5 |
| Wheel Loader: 982 - Passes | 4 |
| Wheel Loader: 980 - Passes | 4-5 |
| Wheel Loader: 972 - Passes | 4-5 |
| 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. |
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