Backhoe Loaders
Center-Pivot

450 Backhoe Loader

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450 Backhoe Loader
US
Metric

Overview

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
131.00 HP
98.00 kW
Bore
4.13 in
105.00 mm
Stroke
5.00 in
127.00 mm
Displacement
268.00 in³
4.40 l
Ratings at 2,200 rpm - Gross Power ISO 14396
143.00 HP
106.00 kW
Net Power - 2,200 rpm - SAE J1349
68.00 HP
51.00 kW
Net Peak Power Rating - SAE J1349
134.00 HP
100.00 kW
Net Power Rating at 2,200 rpm - SAE J1349
131.00 HP
98.00 kW
Net Peak Power Rating - ISO 9249
134.00 HP
100.00 kW
Net Torque Rise - 1,200 rpm
88.00 %
88.00 %
Net Peak Power - 1,800 rpm - SAE J1349
72.00 HP
54.00 kW
Gross Power - SAE J1995
74.00 HP
55.00 kW
Net Peak Power - 1,800 rpm - ISO 9249
73.00 HP
54.00 kW
Rated Net Power - 2,200 rpm - ISO 9249
68.00 HP
51.00 kW
Net Peak Power - 1,800 rpm - EEC 80/1269
73.00 HP
54.00 kW
Rated Net Power - 2,200 rpm - EEC 80/1269
69.00 HP
51.00 kW
Ratings at 2,200 rpm - Gross Power SAE J1995
146.00 HP
109.00 kW
Net Torque Rise - 1,400 rpm - SAE J1349
400.00 ft·lbf
540.00 N·m
Gross Power - ISO 14396
74.00 HP
55.00 kW
Net Torque Rise - 1,400 rpm
29%
Power Rating Conditions - No De-Rating Required Up To
7500.00 ft
2286.00 m
Net Power Rating at 2,200 rpm - ISO 9249
131.00 HP
98.00 kW
Engine Model
C4.4 ACERT 106 kW (143 hp) Electronic – Turbo Intercooled

Weights

Operating Weight - Maximum
29321.00 lb
13300.00 kg
Cab - ROPS/FOPS
359.00 lb
163.00 kg
Air Conditioning
101.00 lb
46.00 kg
Front Counterweight - Counterweights - Option 2
530.00 lb
240.00 kg
Operating Weight - Estimated*
24039.00 lb
10904.00 kg
Backhoe Quick Coupler
+151 kg (+333 lb)
Note (5)
ED = Extreme Duty
Operating Weight - Maximum - ROPS Capacity
29321.00 lb
13300.00 kg
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.
Cab, ROPS/FOPS
+243 kg (+536 lb)
Loader Bucket - 1.34 m³ (1.75 yd³) GP (Hook-On)
–150 kg (–331 lb)
MP Bucket (1.00 m3/1.31 yd3) - With Fold-Over Forks
2018.00 lb
915.00 kg
Loader Bucket - 1.34 m³ (1.75 yd³) MP ED (Hook-On)
+160 kg (+353 lb)
Note (4)
HD = Heavy Duty
Note (2)
GP = General Purpose
Counterweight
2147.00 lb
974.00 kg
Loader Bucket - 1.34 m³ (1.75 yd³) MP HD (Hook-On)
+85 kg (+187 lb)
MP Bucket (1.00 m3/1.31 yd3) - Without Fold-Over Forks
3622.00 lb
1642.00 kg
Loader Bucket - 1.34 m³ (1.75 yd³) MP ED (Pin-On)
+290 kg (+639 lb)
Loader Bucket - 1.34 m³ (1.75 yd³) MP HD (Pin-On)
+214 kg (+472 lb)
Loader Bucket - 1.53 m³ (2.0 yd³) GP (Pin-On)
+80 kg (+176 lb)
Front Counterweight - Counterweights - Option 1
255.00 lb
115.00 kg
Loader Bucket - 1.53 m³ (2.0 yd³) GP (Hook-On)
–73 kg (–162 lb)
Extendible Stick
+338 kg (+745 lb)
Loader Quick Coupler
+250 kg (+551 lb)
Note (3)
MP = Multi Purpose

Loader Bucket

Dig Depth - Standard
3.00 in
83.00 mm

Weights

Rear Counterweight
198.00 lb
90.00 kg
Front Counterweight - Counterweights - Option 3
1015.00 lb
460.00 kg

Hydraulic System

Pump Type
Variable Flow, Axial Piston

Transmission

Autoshift Transmission - Forward - 6th
25.20 mile/h
40.60 km/h
Autoshift Transmission - Reverse - 3rd
16.90 mile/h
27.20 km/h
Power Shuttle Transmission - Forward 3rd
13.00 mile/h
20.00 km/h
Autoshift Transmission - Reverse - 2nd
7.80 mile/h
12.50 km/h
Autoshift Transmission - Forward - 5th
16.90 mile/h
27.20 km/h
Power Shuttle Transmission - Reverse 4th
23.00 mile/h
36.00 km/h
Power Shuttle Transmission - Forward 1st
3.40 mile/h
5.40 km/h
Autoshift Transmission - Forward - 4th
12.30 mile/h
19.80 km/h
Power Shuttle Transmission - Reverse 2nd
5.50 mile/h
8.90 km/h

Hydraulic System

Pump Capacity at 2,200 rpm
58.10 gal/min
220.00 l/min

Transmission

Power Shuttle Transmission - Forward 2nd
5.50 mile/h
8.90 km/h

Hydraulic System

System Pressure - Loader
3800.00 psi
26200.00 kPa

Transmission

Power Shuttle Transmission - Reverse 3rd
13.00 mile/h
20.00 km/h
Power Shuttle Transmission - Reverse 1st
3.40 mile/h
5.40 km/h
Autoshift Transmission - Forward - 1st
3.70 mile/h
6.00 km/h

Hydraulic System

System Pressure - Hitch/Box Scraper
2973.00 psi
20500.00 kPa

Transmission

Autoshift Transmission - Forward - 2nd
6.00 mile/h
9.60 km/h
Autoshift Transmission - Reverse - 1st
3.70 mile/h
6.00 km/h
Autoshift Transmission - Forward - 3rd
7.80 mile/h
12.50 km/h
Power Shuttle Transmission - Forward 4th
23.00 mile/h
36.00 km/h

Hydraulic System

Type
Closed Center

Transmission

Note
Travel speeds of two wheel drive backhoe loader at full throttle, when equipped with 21×24 rear tires.

Hydraulic System

System Pressure - Backhoe
3800.00 psi
26200.00 kPa

Service Refill Capacities

Rear Axle (Center Housing)
5.00 gal (US)
19.00 l
Cooling System with Cab Heater
6.00 gal (US)
22.50 l
Cooling System with Air Conditioning
4.40 gal (US)
16.50 l
Front Axle (4WD)
2.90 gal (US)
11.00 l
Transmission (Autoshift) - AWD, Autoshift
4.80 gal (US)
18.00 l
Hydraulic Tank (Nominal)
14.30 gal (US)
54.00 l
Fuel Tank
42.30 gal (US)
160.00 l
Front Axle (Center Housing)
2.90 gal (US)
11.00 l
Planetaries
0.20 gal (US)
0.70 l
Diesel Exhaust Fluid (DEF)
5.00 gal (US)
19.00 l
Rear Axle - Planetaries
0.40 gal (US)
1.70 l
Front Axle (4WD) - Planetaries
0.20 gal (US)
0.70 l
Transmission - Power Shuttle - 2WD
4.00 gal (US)
15.00 l
Hydraulic System (Minimum)
34.40 gal (US)
130.00 l
Transmission - Power Shuttle - 4WD
4.00 gal (US)
15.00 l
Engine Oil - With Filter
2.30 gal (US)
8.80 l
Rear Axle
4.40 gal (US)
16.50 l
Hydraulic System
23.80 gal (US)
90.00 l

Steering

Stroke
9.29 in
236.00 mm
Rod Diameter
1.65 in
42.00 mm
Turning Circle (inner wheel not braked) - Outside Widest Loader Bucket
37.75 ft
11.50 m
Turning Circle (inner wheel not braked) - Outside Front Wheels
27.55 ft
8.40 m
Note
AWD cylinder, one (1) double-acting.
Bore
3.35 in
85.00 mm
Power Steering
Hydrostatic HMU
Type
Front Wheel

Axle Ratings

Rear Axle - Static
47756.00 lb
21662.00 kg
Rear Axle - Dynamic
19103.00 lb
8665.00 kg
Front Axle (4WD) - Dynamic
20233.00 lb
9186.00 kg
Front Axle (4WD) - Static
50582.00 lb
22964.00 kg
Front Axle, AWD - Static
50565.00 lb
22936.00 kg
Front Axle, AWD - Dynamic
20225.00 lb
9174.00 kg

Backhoe

Dig Depth - Standard
17.00 ft
5185.00 mm

Service Refill Capacities

Hydraulic Tank
10.60 gal (US)
40.00 l

Counterweights - Front - Minimum Recommendations

Standard Stick - MP Loader Bucket - 4WD
no counterweight

Steering

Turning Circle - (inner wheel not braked) - Outside Front Wheels
26.80 ft
8.18 m

Engine

Net Peak Torque SAE J1349
307.00 ft·lbf
416.00 N·m

Service Refill Capacities

Note
Requires ultra-low sulfur fuel less than or equal to 15 ppm fuel sulfur

Counterweights - Front - Minimum Recommendations

Standard Stick - GP Loader Bucket - 4WD
255.00 lb
116.00 kg

Steering

Turning Circle - (inner wheel not braked) - Outside Widest Loader Bucket
36.00 ft
10.97 m

Tires

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

Engine

Emissions
Engine meets U.S. EPA Tier 4 Final emission standards.
Note
No derating required up to 2286 m (7,500 ft).

Steering

Axle Oscillation
11°
Features

Ergonomic Operator Station

Adjustable Seat Mounted Controls improve ergonomics by increasing operator comfort and legroom. Operators have Loader and Backhoe Controls in the palm of their hands, whether they are facing the Loader, the Backhoe, or sitting off set. Variable Speed Steer reduces operator fatigue in applications, such as truck loading, by reducing the number of steering wheel rotations required to turn the machine. The new Spring Applied Hydraulically Released (SAHR) Parking Brake is controlled by simply pressing a button.

Advanced Hydraulics

The Cat Backhoe Loader’s load sensing piston pump provides full hydraulic lifting and digging forces at any engine speed. Variable flow pump matches hydraulic power to work demands. The advanced hydraulic system allows the operator to adjust Loader and Backhoe Auxiliary Flow matching attachment specifications, program Loader Bucket Kickout and Return to Dig, and Enable Parallel Lift.

Machine Performance

The Cat C4.4 ACERT™ engine delivers solid performance and meets U.S. EPA Tier 4 Final/EU Stage IV emission standards by utilizing Selective Catalytic Reduction technology with a Diesel Oxidation Catalyst. The new Backhoe design and optimized Loader Linkage increases lift capacity and breakout forces on both ends of the machine. A redesigned Loader System provides superior machine balance and stability regardless of the ground conditions.

Machine Versatility

The all new Integrated Tool Carrier (IT Coupler) for Single Tilt Loader Arm configurations are available from the factory or for simple field installation. The Cat Backhoe Loader with Integrated Tool Carrier (IT Coupler) will be the most versatile machine on the job site providing quick connection to a variety of Cat Attachments.

Cat Attachments

A variety of Mechanical and Hydraulic Cat Backhoe Couplers are available from the factory or for field installation. Options include, but not limited to, Dual Lock Pin Grabber Couplers and Pin Lock Couplers. Redesigned General Purpose and Multi Purpose Loader Buckets increase digging performance and improve bucket durability for long term value.

Standard Equipment
  • STANDARD EQUIPMENT
    • 5185 mm (17 ft) center pivot excavator style backhoe
    • Adjustable auxiliary flow controls, loader and backhoe
    • Air cleaner
    • Alarm, back-up
    • Alternator, 150 amp
    • Audible system fault alarm
    • Automatic Engine Speed Control (AESC)
    • Autoshift transmission with six (6) forward and three (3) reverse gears and neutral safety switch
    • Backhoe Safety Manual
    • Battery Box, external, lockable
    • Battery disconnect switch
    • Battery, maintenance-free, 1,000 CCA
    • Boom transport lock
    • Brace, lift cylinder
    • Brake, SAHR secondary parking
    • Brakes, hydraulically boosted, oil disc, dual pedals, interlocking
    • Canopy, ROPS/FOPS
    • Cat cushion swing system
    • CD-ROM Parts Manual
    • Coat restraint
    • Coolant/antifreeze, extended life
    • Counterweight, bumper, 974 kg (2,147 lb)
    • Diagnostic port for engine, machine and gauge cluster Electronic Control Modules
    • Differential lock, loader joystick
    • Dome light (cab only)
    • Engine enclosure, sound suppression removal panels
    • Engine, Cat C4.4 ACERT (Direct Injection Turbocharged), meets Tier 4 Final/Stage IV emission standards, selective catalyst reduction, diesel oxidation catalyst (DOC)
    • Face seals, O-ring
    • Fan, suction and guard
    • Fast reversing shuttle, all gears
    • Fenders, rear
    • Filters, bowl and cartridge: fuel, hydraulic fluid
    • Filters, spin-on: engine oil, transmission oil, water separator
    • Flashing hazards/signal lights
    • Floor mat
    • Four Wheel Drive/Brake Mode Selector
    • Fuel tank, fully enclosed
    • Fully hinged front grill for cooling package cleaning access
    • Ground level fuel fill and DEF fill
    • Guard, boom protection plate
    • Guards, stabilizer, rock
    • Hammer cup
    • High ambient cooling package
    • Hood lock, inside cab
    • Hydraulic hose, XT™
    • Hydraulic oil cooler
    • Hydraulic oil level sight gauge
    • Hydraulic valves, backhoe six (6) function
    • Hydraulic valves, loader three (3) function
    • Hydraulics, load sensing with variable displacement piston pump and flow sharing valve
    • Indicator lights: hydraulic implement lockout, hydraulic filter bypass, water in fuel, operator presence, remote dial throttle active, air filter blocked, engine warning, machine locked (if equipped), warning lamp, emissions module malfunction, low battery/charging system warning, high hydraulic oil temperature; LCD warnings: engine oil pressure, service due, high coolant temperature, auto idle shutdown, high torque converter temperature
    • Instrument panel lights
    • Joystick controls: electrohydraulic controls with pattern changer valve
    • Key start/stop system
    • LCD operator screen
    • Lights, working (four [4] front, four [4] rear)
    • Loader joystick, self-leveling, return-to-dig, transmission disconnect switch, Forward/Neutral/Reverse Switch, MP Auxiliary roller
    • Loader, single tilt
    • Machine Security System integrated into LCD operator display
    • Mirror, rearview
    • One-touch low idle
    • Open circuit breather
    • Operations and Maintenance Manual
    • Pattern changer, in cab
    • Power receptacle, 12 volt, one (1) internal + one (1) USB, two (2) external
    • Product Link™
    • Radio ready (Cab)
    • Ride Control
    • Rubber impact strips on radiator guards
    • Seat belt, retractable, 51 mm (2 in)
    • Seat mounted controls
    • Seat, air suspension with armrest
    • Stabilizer shoes, reversible
    • Stabilizers, electrohydraulic, auto-up function
    • Starting system, glow plugs
    • Steering knob
    • Steering, hydrostatic
    • Stop and tail lights
    • Storage compartment (Cab/Canopy), lockable
    • Storage tray, electronics and miscellaneous items
    • Swing transport lock
    • Throttle, hand and foot, electronic
    • Tilt steering wheel (Canopy), Tilt/telescoping (Cab)
    • Tire Valve Stem Protection
    • Tires
    • Torque converter
    • Transmission neutralizer switch
    • Transport tie-downs
    • Vandalism locks, four (4)
    • Vandalism protection, gauge cover (Canopy)
    • Warning horn, electric
Optional Equipment
  • OPTIONAL EQUIPMENT
    • Battery, additional, 1,000 CCA
    • Cab, deluxe with air conditioning
    • Cold weather fuel (–30° C/–22° F)
    • Cold weather package, including additional battery, engine block heater, radiator antifreeze, cold weather fuel (–30° C/–22° F) and mounting for an ether bottle
    • Fenders, front with integral steps
    • Guard, stabilizer, stab leg bottom
    • Hydraulic lines, combined function auxiliary
    • Hydraulic valves, loader quick coupler
    • Lights, LED work lights, wide and spot
    • Loader, Quick Coupler
    • Quick Coupler, backhoe, hydraulic, dual lock
    • Radio and CD player, Bluetooth®
    • Rotating beacon, magnetic mount
    • Seat belt, 75 mm (3 in)
    • Seat, heated
    • Stick, extendible
    • Work Tool Attachments such as buckets, flip over forks, hammers and vibratory plate compactors. See your Cat dealer for more information.