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Cat Wheel Dozers are designed with durability built in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to support your job site efficiently and safely while lowering owning and operating costs. Introduced in the mid-1960’s, the 834 has been the industry leader for almost 50 years. Focused on helping our customers succeed, we have continued to build upon each new series. The 834K continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency.


Engine Model Cat® C18 ACERT™ Cat® C18 ACERT™ Less
Net Power 496.0 hp 370.0 kW Less
Bore 5.7 in 145.0 mm Less
Stroke 7.2 in 183.0 mm Less
Displacement 1105.0 in3 18.1 L Less
Torque Rise 52.0 % 52.0 % Less
Emissions U.S. EPA Tier 4 Final/EU Stage IV Technology, Tier 3 Equivalent, Tier 2 Equivalent U.S. EPA Tier 4 Final/EU Stage IV Technology, Tier 3 Equivalent, Tier 2 Equivalent Less
Gross - SAE J1349 562.0 hp 419.0 kW Less
Net - SAE J1349 496.0 hp 370.0 kW Less
Peak Power Speed 1500.0 RPM 1500.0 RPM Less
Peak Torque @ 1,300 rpm 2092.0 lb ft 2836.0 N·m Less
Rated Speed 1900.0 RPM 1900.0 RPM Less


Direct Drive - Forward 2 7.7 mph 12.4 km/h Less
Direct Drive - Forward 3 13.7 mph 22.1 km/h Less
Direct Drive - Reverse 1 4.5 mph 7.2 km/h Less
Direct Drive - Reverse 2 8.1 mph 13.0 km/h Less
Direct Drive - Reverse 3 14.3 mph 23.0 km/h Less
Direct Drive - Forward 1 Lock-up disabled Lock-up disabled Less
Direct Drive - Forward 4 23.9 mph 38.5 km/h Less
Forward 1 4.2 mph 6.8 km/h Less
Forward 2 7.2 mph 11.6 km/h Less
Forward 3 12.6 mph 20.3 km/h Less
Forward 4 22.0 mph 35.4 km/h Less
Reverse 1 4.2 mph 6.8 km/h Less
Reverse 2 7.6 mph 12.2 km/h Less
Reverse 3 13.3 mph 21.4 km/h Less
Transmission Type Cat planetary power shift Cat planetary power shift Less


Brakes ISO 3450:2011 ISO 3450:2011 Less


Front Fixed Fixed Less
Rear Trunnion Trunnion Less
Oscillation Angle ±13° ±13° Less


Operating Weight 105271.0 lb 47750.0 kg Less

Service Refill Capacities

Cooling System 31.7 gal 120.0 L Less
Crankcase 15.9 gal 60.0 L Less
Transmission 31.7 gal 120.0 L Less
Differentials and Final Drives - Front 49.1 gal 186.0 L Less
Differentials and Final Drives - Rear 49.1 gal 186.0 L Less
Diesel Exhaust Fluid Tank 8.7 gal 33.0 L Less
Fuel Tank 209.5 gal 793.0 L Less
Hydraulic System (tank only) 37.0 gal 140.0 L Less
Hydraulic System Factory Fill 63.4 gal 240.0 L Less

Operating Specifications

Blade Capacities 7.9-22.2 m3 (10.3-29.0 yd3) 7.9-22.2 m3 (10.3-29.0 yd3) Less
Operating Weight 105271.0 lb 47750.0 kg Less

Sound Performance

Exterior Sound Level - Standard 111.0 dB(A) 111.0 dB(A) Less
Exterior Sound Level - Suppression 109.0 dB(A) 109.0 dB(A) Less
Interior Sound Level - Standard 72.0 dB(A) 72.0 dB(A) Less
Interior Sound Level - Suppression 71.0 dB(A) 71.0 dB(A) Less


Height to Top of Exhaust Stack 15.9 ft 4835.0 mm Less
Length of Straight Blade on Ground 32.6 ft 9927.0 mm Less
Length of Universal Blade on Ground 34.4 ft 10470.0 mm Less
Height to Top of Cab 13.7 ft 4184.0 mm Less
Height to Top of Hood 10.9 ft 3334.0 mm Less
Height to Top of Air Cleaner 12.8 ft 3895.0 mm Less
Ground Clearance to Bumper 3.1 ft 933.0 mm Less
Center Line of Front Axle to Hitch 7.5 ft 2275.0 mm Less
Center Line of Rear Axle to Edge of Bumper 10.5 ft 3187.0 mm Less
Wheelbase 14.9 ft 4550.0 mm Less
Length to Front Tire 28.4 ft 8715.0 mm Less
Ground Clearance 1.7 ft 531.0 mm Less


Blade Capacities 7.9-22.2 m3 (10.3-29.0 yd3) 7.9-22.2 m3 (10.3-29.0 yd3) Less

Hydraulic System - Lift/Tilt

Cylinders, Double Acting: Left and Right Tilt, Bore and Stroke 140 mm × 230 mm (5.5 in × 9.1 in) 140 mm × 230 mm (5.5 in × 9.1 in) Less
Cylinders, Double Acting: Lift, Bore and Stroke 139.75 mm × 1021 mm (5.5 in × 40.2 in) 139.75 mm × 1021 mm (5.5 in × 40.2 in) Less
Lift/Tilt System Variable displacement piston Variable displacement piston Less
Lift/Tilt System - Circuit Pilot operated LS valve with EH Pilot operated LS valve with EH Less
Maximum Flow at 1,900 rpm 153.0 gal/min 582.0 L/min Less
Pilot Maximum Flow 13.7 gal/min 52.0 L/min Less
Pilot Relief Valve Setting 580.0 psi 4000.0 kPa Less
Pilot System Variable displacement piston Variable displacement piston Less
Relief Valve Setting - Lift/Tilt 4641.0 psi 32000.0 kPa Less

Hydraulic System - Steering

Maximum Flow 65.8 gal/min 250.0 L/min Less
Relief Valve Setting - Steering 3495.0 psi 24100.0 kPa Less
Steering Cycle Time (high idle) 3.1 Seconds 3.1 Seconds Less
Steering Cycle Time (low idle) 5.7 Seconds 5.7 Seconds Less
Steering System - Circuit Pilot, load sensing Pilot, load sensing Less
Steering System - Pump Piston, variable displacement Piston, variable displacement Less
Total Steering Angle 86.0 Degrees 86.0 Degrees Less


Delivering fuel efficiency you demand through integrated machine systems.


Best built for the toughest conditions.

Power Train

Move material more efficiently with improved power and control.

Operator Station

Best-in-class operator comfort and ergonomics.

Technology Solutions

Greater productivity through Integrated Electronic Systems.

Cat MineStar System

Work more productively.


Making your safety our priority.



Cat blades to match your customers dozing requirements.

Operating Costs

Save time and money by working smart.


Enabling high uptime by reducing your service time.

Customer Support

Your Cat dealers know how to keep your machines productive.

834K Standard Equipment

  • Alarm, back-up
  • Alternator (100 amp)
  • Batteries, maintenance-free
  • Deutsch terminal connectors
  • Electrical system (24V)
  • Lighting system, halogen (front and rear), access stairway
  • Starter, electric (heavy-duty)
  • Starting receptacle for emergency starts

  • Air conditioner
  • Cab, sound suppressed and pressurized
  • Internal four-post rollover protective structure (ROPS/FOPS), radio ready (entertainment) includes antenna, speakers and converter (12V, 15 amp), 12V power port, tinted glass
  • Cigar lighter (12V, 15 amp) and ashtray
  • Coat hook
  • Electro-Hydraulic tilt, tip controls
  • Heater and defroster
  • Horn, electric
  • Light, cab (dome)
  • Lock-up clutch disable switch
  • Lunchbox and beverage holders
  • Monitoring system (VIMS 3G)
  • Action alert system, three category
  • Instrumentation, gauges: - Engine coolant temperature - Fuel level - Hydraulic oil temperature - Speedometer/tachometer - Transmission oil temperature - Instrumentation, warning indicators - Axle/brake oil temperature (front/rear) - Brake oil pressure - Electrical system, low voltage - Engine intake/combustion air temperature - Engine oil pressure - Engine overspeed - Fuel pressure - Hydraulic oil filter status - Parking brake status - Transmission filter status - Cat Vision (rear vision camera)
  • Mirrors, rearview (externally mounted)
  • Rimpull select switch
  • Seat, Comfort Series (cloth), air suspension
  • Seat belt, retractable, 76 mm (3 in) wide
  • STIC control system with steering lock
  • Tilt and lift control system lock
  • Transmission gear indicator
  • Wet-arm wipers/washers (front and rear)
  • Intermittent front wiper

  • Brakes, full hydraulic, enclosed, wet-disc
  • Multiple disc service brakes
  • Case drain filters
  • Demand fan
  • Engine, Cat C18 MEUI with ACERT Technology, ATAAC, ADEM™ IV controller
  • Fuel priming pump (electric)
  • Parking brake
  • Precleaner, engine air intake
  • Radiator, Next Generation Modular
  • Radiator (NGMR)
  • Separated cooling system
  • Starting aid (ether) automatic
  • Throttle lock
  • Torque converter, impeller clutch with lock-up control system and rimpull control system (switch and dial in cab)
  • Transmission, planetary, autoshift (4F/3R)

  • Doors, service access (locking)
  • Engine, crankcase, 500 hour interval with CH-4 oil
  • Grouped Electronic Clutch Pressure
  • Control, remote mounted pressure taps
  • Hitch, drawbar with pin
  • Hood, metallic with lockable service doors
  • Hydraulic oil cooler
  • Muffler (under hood)
  • Oil sampling valves
  • Stairway, left side (rear access)
  • Steering, load sensing
  • Vandalism protection caplocks
  • Venturi stack

  • A tire must be selected from the mandatory attachments section - base machine price includes a tire allowance

  • Premixed 50 percent concentration of Extended Life Coolant with freeze protection to -34° C (-29° F)

834K Optional Equipment

  • -50° C (-58° F) antifreeze
  • Engine oil change system, high speed, Wiggins
  • Engine block heater 120V or 240V
  • Engine compression brake
  • Automatic retarding control (with engine compression brake)
  • Axle oil cooler
  • Second starter
  • Crankcase guards

  • Cab precleaner
  • AM/FM/CD/MP3 radio
  • Satellite Sirius radio with Bluetooth
  • LED warning strobe
  • CB radio ready
  • Window pull down visor
  • Sound suppression
  • Visor group - cab pull-down shade
  • Cat Detect (rear object detection)

  • Front and rear roading fenders
  • Fast fill fuel system (Shaw-Aero)
  • Cat Detect
  • Halogen and HID lights

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