450 Backhoe Loader

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The Cat® 450 Backhoe Loader delivers improved machine performance, a superior hydraulic system, improved operator controls and ergonomics, and overall versatility.

Engine

Net Power - SAE J1349
131 HP
Bore
4.13 in
Stroke
5 in
Displacement
268 in³
Net Torque Rise - 1,200 rpm
88 %
Net Peak Power - 1,800 rpm - SAE J1349
72 HP
Gross Power - SAE J1995
74 HP
Net Peak Power - 1,800 rpm - ISO 9249
73 HP
Rated Net Power - 2,200 rpm - ISO 9249
68 HP
Net Peak Power - 1,800 rpm - EEC 80/1269
73 HP
Rated Net Power - 2,200 rpm - EEC 80/1269
69 HP
Ratings at 2,200 rpm - Gross Power SAE J1995
146 HP
Net Torque Rise - 1,400 rpm - SAE J1349
400 ft·lbf
Gross Power - ISO 14396
74 HP
Net Torque Rise - 1,400 rpm
29%
Power Rating Conditions - No De-Rating Required Up To
7500 ft
Net Power Rating at 2,200 rpm - ISO 9249
131 HP
Engine Model
C4.4 ACERT 106 kW (143 hp) Electronic – Turbo Intercooled
Ratings at 2,200 rpm - Gross Power ISO 14396
143 HP
Rated Net Power - 2,200 rpm - SAE J1349
68 HP
Net Peak Power Rating - SAE J1349
134 HP
Net Power Rating at 2,200 rpm - SAE J1349
131 HP
Net Peak Power Rating - ISO 9249
134 HP
Net Peak Torque SAE J1349
307 ft·lbf
Emissions
Engine meets U.S. EPA Tier 4 Final emission standards.
Note
No derating required up to 2286 m (7,500 ft).

Backhoe

Dig Depth - Standard
17 ft

Weights

Operating Weight - Maximum
29321 lb
Cab - ROPS/FOPS
359 lb
Air Conditioning
101 lb
Front Counterweight - Counterweights - Option 2
530 lb
Operating Weight - Estimated*
24039 lb
Backhoe Quick Coupler
+151 kg (+333 lb)
Front Counterweight - Counterweights - Option 3
1015 lb
Rear Counterweight
198 lb
Note (3)
MP = Multi Purpose
Loader Quick Coupler
+250 kg (+551 lb)
Extendible Stick
+338 kg (+745 lb)
Loader Bucket - 1.53 m³ (2.0 yd³) GP (Hook-On)
–73 kg (–162 lb)
Front Counterweight - Counterweights - Option 1
255 lb
Loader Bucket - 1.53 m³ (2.0 yd³) GP (Pin-On)
+80 kg (+176 lb)
Loader Bucket - 1.34 m³ (1.75 yd³) MP HD (Pin-On)
+214 kg (+472 lb)
Loader Bucket - 1.34 m³ (1.75 yd³) MP ED (Pin-On)
+290 kg (+639 lb)
MP Bucket (1.00 m3/1.31 yd3) - Without Fold-Over Forks
3622 lb
Loader Bucket - 1.34 m³ (1.75 yd³) MP HD (Hook-On)
+85 kg (+187 lb)
Counterweight
2147 lb
Note (2)
GP = General Purpose
Note (4)
HD = Heavy Duty
Loader Bucket - 1.34 m³ (1.75 yd³) MP ED (Hook-On)
+160 kg (+353 lb)
MP Bucket (1.00 m3/1.31 yd3) - With Fold-Over Forks
2018 lb
Loader Bucket - 1.34 m³ (1.75 yd³) GP (Hook-On)
–150 kg (–331 lb)
Cab, ROPS/FOPS
+243 kg (+536 lb)
Note (1)
*Machine equipped with 15-19.5 12 ply front and 21L-24 16 ply rear, AWD, OROPS, 1.34 m³ (1.75 yd³) general purpose bucket with bolt-on cutting edge, standard stick, 610 mm (24"") heavy-duty backhoe bucket.
Note (5)
ED = Extreme Duty
Operating Weight - Maximum - ROPS Capacity
29321 lb

Hydraulic System

Pump Type
Variable Flow, Axial Piston
System Pressure - Backhoe
3800 psi
Type
Closed Center
System Pressure - Hitch/Box Scraper
2973 psi
System Pressure - Loader
3800 psi
Pump Capacity at 2,200 rpm
58.1 gal/min

Axle Ratings

Rear Axle - Dynamic
19103 lb
Rear Axle - Static
47756 lb
Front Axle (4WD) - Static
50582 lb
Front Axle (4WD) - Dynamic
20233 lb
Front Axle, AWD - Static
50565 lb
Front Axle, AWD - Dynamic
20225 lb

Steering

Type
Front Wheel
Power Steering
Hydrostatic HMU
Bore
3.35 in
Note
AWD cylinder, one (1) double-acting.
Turning Circle (inner wheel not braked) - Outside Front Wheels
27.55 ft
Turning Circle (inner wheel not braked) - Outside Widest Loader Bucket
37.75 ft
Rod Diameter
1.65 in
Stroke
9.29 in
Turning Circle - (inner wheel not braked) - Outside Front Wheels
26.8 ft
Turning Circle - (inner wheel not braked) - Outside Widest Loader Bucket
36 ft
Axle Oscillation
11°

Service Refill Capacities

Hydraulic System
23.8 gal (US)
Rear Axle
4.4 gal (US)
Engine Oil - With Filter
2.3 gal (US)
Transmission - Power Shuttle - 4WD
4 gal (US)
Hydraulic System (Minimum)
34.4 gal (US)
Transmission - Power Shuttle - 2WD
4 gal (US)
Front Axle (4WD) - Planetaries
0.2 gal (US)
Rear Axle - Planetaries
0.4 gal (US)
Diesel Exhaust Fluid (DEF)
5 gal (US)
Planetaries
0.2 gal (US)
Front Axle (Center Housing)
2.9 gal (US)
Fuel Tank
42.3 gal (US)
Hydraulic Tank (Nominal)
14.3 gal (US)
Transmission (Autoshift) - AWD, Autoshift
4.8 gal (US)
Front Axle (4WD)
2.9 gal (US)
Cooling System with Air Conditioning
4.4 gal (US)
Cooling System with Cab Heater
6 gal (US)
Rear Axle (Center Housing)
5 gal (US)
Hydraulic Tank
10.6 gal (US)
Note
Requires ultra-low sulfur fuel less than or equal to 15 ppm fuel sulfur

Transmission

Note
Travel speeds of two wheel drive backhoe loader at full throttle, when equipped with 21×24 rear tires.
Autoshift Transmission - Forward - 3rd
7.8 mile/h
Power Shuttle Transmission - Forward 4th
23 mile/h
Autoshift Transmission - Reverse - 1st
3.7 mile/h
Autoshift Transmission - Forward - 2nd
6 mile/h
Autoshift Transmission - Forward - 1st
3.7 mile/h
Power Shuttle Transmission - Reverse 1st
3.4 mile/h
Power Shuttle Transmission - Reverse 3rd
13 mile/h
Power Shuttle Transmission - Forward 2nd
5.5 mile/h
Power Shuttle Transmission - Reverse 2nd
5.5 mile/h
Autoshift Transmission - Forward - 4th
12.3 mile/h
Power Shuttle Transmission - Forward 1st
3.4 mile/h
Power Shuttle Transmission - Reverse 4th
23 mile/h
Autoshift Transmission - Forward - 5th
16.9 mile/h
Autoshift Transmission - Reverse - 2nd
7.8 mile/h
Power Shuttle Transmission - Forward 3rd
13 mile/h
Autoshift Transmission - Reverse - 3rd
16.9 mile/h
Autoshift Transmission - Forward - 6th
25.2 mile/h

Loader Bucket

Dig Depth - Standard
3 in

Counterweights - Front - Minimum Recommendations

Standard Stick - MP Loader Bucket - 4WD
no counterweight
Standard Stick - GP Loader Bucket - 4WD
255 lb

Tires

Standard Configuration of Front/Rear Tires
Front: 12.5 80/16.9; Rear: 16.9-24