450 Backhoe Loader

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

Backhoe

Dig Depth - Standard 17ft

Weights

Operating Weight - Maximum 29321lb
Cab - ROPS/FOPS 359lb
Air Conditioning 101lb
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 255lb
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
Rear Counterweight 198lb
Front Counterweight - Counterweights - Option 3 1015lb
Front Counterweight - Counterweights - Option 2 530lb
Operating Weight - Estimated* 24039lb
Backhoe Quick Coupler +151 kg (+333 lb)
Note (5) ED = Extreme Duty
Operating Weight - Maximum - ROPS Capacity 29321lb
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 2018lb
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 2147lb
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 3622lb

Hydraulic System

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

Loader Bucket

Dig Depth - Standard 3in

Transmission

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

Service Refill Capacities

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

Steering

Stroke 9.29in
Rod Diameter 1.65in
Turning Circle - AWD (inner wheel not braked) - Outside Widest Loader Bucket 37.75ft
Turning Circle - AWD (inner wheel not braked) - Outside Front Wheels 27.55ft
Note AWD cylinder, one (1) double-acting.
Bore 3.35in
Power Steering Hydrostatic HMU
Type Front Wheel
Turning Circle - 2WD/AWD (inner wheel not braked) - Outside Front Wheels 26.8ft
Turning Circle - 2WD/AWD (inner wheel not braked) - Outside Widest Loader Bucket 36ft
Axle Oscillation 11°

Axle Ratings

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

Counterweights - Front - Minimum Recommendations

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

Tires

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

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.