450 Backhoe Loader

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

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Bore 4.13in
Displacement 268in³
Emissions Engine meets U.S. EPA Tier 4 Final emission standards.
Engine Model C4.4 ACERT 106 kW (143 hp) Electronic – Turbo Intercooled
Gross Power - ISO 14396 74HP
Gross Power - SAE J1995 74HP
Net Peak Power - 1,800 rpm - EEC 80/1269 73HP
Net Peak Power - 1,800 rpm - ISO 9249 73HP
Net Peak Power - 1,800 rpm - SAE J1349 72HP
Net Peak Power Rating - ISO 9249 134HP
Net Peak Power Rating - SAE J1349 134HP
Net Peak Torque SAE J1349 307ft·lbf
Net Power - 2,200 rpm - SAE J1349 68HP
Net Power - SAE J1349 131HP
Net Power Rating at 2,200 rpm - ISO 9249 131HP
Net Power Rating at 2,200 rpm - SAE J1349 131HP
Net Torque Rise - 1,200 rpm 88%
Net Torque Rise - 1,400 rpm 29%
Net Torque Rise - 1,400 rpm - SAE J1349 400ft·lbf
Note No derating required up to 2286 m (7,500 ft).
Power Rating Conditions - No De-Rating Required Up To 7500ft
Rated Net Power - 2,200 rpm - EEC 80/1269 69HP
Rated Net Power - 2,200 rpm - ISO 9249 68HP
Ratings at 2,200 rpm - Gross Power ISO 14396 143HP
Ratings at 2,200 rpm - Gross Power SAE J1995 146HP
Stroke 5in
Dig Depth - Standard 17ft
Air Conditioning 101lb
Backhoe Quick Coupler +151 kg (+333 lb)
Cab - ROPS/FOPS 359lb
Cab, ROPS/FOPS +243 kg (+536 lb)
Counterweight 2147lb
Extendible Stick +338 kg (+745 lb)
Front Counterweight - Counterweights - Option 1 255lb
Front Counterweight - Counterweights - Option 2 530lb
Front Counterweight - Counterweights - Option 3 1015lb
Loader Bucket - 1.34 m³ (1.75 yd³) GP (Hook-On) –150 kg (–331 lb)
Loader Bucket - 1.34 m³ (1.75 yd³) MP ED (Hook-On) +160 kg (+353 lb)
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 (Hook-On) +85 kg (+187 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 (Hook-On) –73 kg (–162 lb)
Loader Bucket - 1.53 m³ (2.0 yd³) GP (Pin-On) +80 kg (+176 lb)
Loader Quick Coupler +250 kg (+551 lb)
MP Bucket (1.00 m3/1.31 yd3) - With Fold-Over Forks 2018lb
MP Bucket (1.00 m3/1.31 yd3) - Without Fold-Over Forks 3622lb
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 (2) GP = General Purpose
Note (3) MP = Multi Purpose
Note (4) HD = Heavy Duty
Note (5) ED = Extreme Duty
Operating Weight - Estimated* 24039lb
Operating Weight - Maximum 29321lb
Operating Weight - Maximum - ROPS Capacity 29321lb
Rear Counterweight 198lb
Pump Capacity at 2,200 rpm 58.1gal/min
Pump Type Variable Flow, Axial Piston
System Pressure - Backhoe 3800psi
System Pressure - Hitch/Box Scraper 2973psi
System Pressure - Loader 3800psi
Type Closed Center
Dig Depth - Standard 3in
Autoshift Transmission - Forward - 1st 3.7mile/h
Autoshift Transmission - Forward - 2nd 6mile/h
Autoshift Transmission - Forward - 3rd 7.8mile/h
Autoshift Transmission - Forward - 4th 12.3mile/h
Autoshift Transmission - Forward - 5th 16.9mile/h
Autoshift Transmission - Forward - 6th 25.2mile/h
Autoshift Transmission - Reverse - 1st 3.7mile/h
Autoshift Transmission - Reverse - 2nd 7.8mile/h
Autoshift Transmission - Reverse - 3rd 16.9mile/h
Note Travel speeds of two wheel drive backhoe loader at full throttle, when equipped with 21×24 rear tires.
Power Shuttle Transmission - Forward 1st 3.4mile/h
Power Shuttle Transmission - Forward 2nd 5.5mile/h
Power Shuttle Transmission - Forward 3rd 13mile/h
Power Shuttle Transmission - Forward 4th 23mile/h
Power Shuttle Transmission - Reverse 1st 3.4mile/h
Power Shuttle Transmission - Reverse 2nd 5.5mile/h
Power Shuttle Transmission - Reverse 3rd 13mile/h
Power Shuttle Transmission - Reverse 4th 23mile/h
Cooling System with Air Conditioning 4.4gal (US)
Cooling System with Cab Heater 6gal (US)
Diesel Exhaust Fluid (DEF) 5gal (US)
Engine Oil - With Filter 2.3gal (US)
Front Axle (4WD) 2.9gal (US)
Front Axle (4WD) - Planetaries 0.2gal (US)
Front Axle (Center Housing) 2.9gal (US)
Fuel Tank 42.3gal (US)
Hydraulic System 23.8gal (US)
Hydraulic System (Minimum) 34.4gal (US)
Hydraulic Tank 10.6gal (US)
Hydraulic Tank (Nominal) 14.3gal (US)
Note Requires ultra-low sulfur fuel less than or equal to 15 ppm fuel sulfur
Planetaries 0.2gal (US)
Rear Axle 4.4gal (US)
Rear Axle (Center Housing) 5gal (US)
Rear Axle - Planetaries 0.4gal (US)
Transmission (Autoshift) - AWD, Autoshift 4.8gal (US)
Transmission - Power Shuttle - 2WD 4gal (US)
Transmission - Power Shuttle - 4WD 4gal (US)
Axle Oscillation 11°
Bore 3.35in
Note AWD cylinder, one (1) double-acting.
Power Steering Hydrostatic HMU
Rod Diameter 1.65in
Stroke 9.29in
Turning Circle (inner wheel not braked) - Outside Front Wheels 27.55ft
Turning Circle (inner wheel not braked) - Outside Widest Loader Bucket 37.75ft
Turning Circle - (inner wheel not braked) - Outside Front Wheels 26.8ft
Turning Circle - (inner wheel not braked) - Outside Widest Loader Bucket 36ft
Type Front Wheel
Front Axle (4WD) - Dynamic 20233lb
Front Axle (4WD) - Static 50582lb
Front Axle, AWD - Dynamic 20225lb
Front Axle, AWD - Static 50565lb
Rear Axle - Dynamic 19103lb
Rear Axle - Static 47756lb
Standard Stick - GP Loader Bucket - 4WD 255lb
Standard Stick - MP Loader Bucket - 4WD no counterweight
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.