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Waste Handling Dozers(Non Current)

From large to small, mining to finishing work, you are certain to find a Cat® Dozer to match your needs. We offer several configurations and special custom packages to meet your specific needs.

D7R WH Waste Handler

The D7R WHA is a waste handling arrangement machine purpose built for landfill operations. Special guarding and cooling systems are standard on these machines to help them withstand the harsh operating conditions in the landfill.

  • Specification Summary

  • Engine ModelCat 3306
  • Flywheel Power171 kW
  • RPM2100 RPM
  • Number of Cylinders6
  • Bore121 mm

Product Details


Engine Model Cat 3306
Flywheel Power 171 kW
RPM 2100 RPM
Number of Cylinders 6
Bore 121 mm
Stroke 152 mm
Displacement 10.5 L


Operating Weight 27920 kg


Blade Type S, SU, U


Track Width 560 mm
Track Gauge 1980 mm
Length of Track on Ground 2880 mm
Ground Contact Area 3.22 m2
Track Rollers/Side 7


Ground Clearance 414 mm
Height (Stripped Top) 2.56 m
Height ROPS/Canopy 3.5 mm
Overall Length Basic Tractor 4.73 m
Overall Length with Blade 5.82 m

Service Refill Capacities

Fuel Tank 479 L


1.0 Forward 3.5 km/h
2.0 Forward 6.4 km/h
3.0 Forward 10.8 km/h
1.0 Reverse 4.7 km/h
2.0 Reverse 8.1 km/h
3.0 Reverse 13.8 km/h

Waste Handling Arrangement

Extensive guarding helps protect critical machine components, body panels and the radiator from being damaged by debris. Minimizing build-up helps prevent component damage.

Hinged radiator guard

The hinged radiator guard protects the cooling system. It comes equipped with two quick release "T" handles for the center opening guard, allowing easy access to the radiator for cleaning. Covers protect the handles from damage. Special hinge latches retain the guard in the open or closed positions.

Tilt cylinder line guards

The tilt cylinder line guards help protect hydraulic lines from contact damage, wile maintaining hose flexibility.

Crankcase (belly) guards

The crankcase (belly) guards serve a dual purpose. They help prevent contact damage to vital power train components, and help keep debris out of the power train compartments.

Chassis guards

The chassis guards help protect the engine compartment by deflecting debris from rising upward along the chassis.

Pivot shaft seal guards

The pivot shaft seal guards help prevent debris from entering and damaging the Duo-Cone seals as well as the bolts on the pivot shaft seals retainers.

Idler seal guards

The idler seal guards help keep wire, fishing, fishing line, strapping, etc., from wrapping around and damaging the Duo-Cone seals.

Final drive seal guards

The final drive seal guards help prevent wire, nylon strapping, etc., from wrapping around and damaging the Duo-Cone seals. The outer guard is now stationary, thicker, and has increased hardness, all of which help prevent excessive wear from debris.

Debris Resistant Features

Additional landfill modifications enhance productivity and help prevent damage.

Rear, tank-mounted lights

The rear, tank-mounted lights are relocated on the ROPS which removes the lights from the concentrated debris environment to help protect them from damage. Combinations vary depending on each model.

Front lights

The front lights are mounted on top of the bulldozer lift cylinders allowing them to project light over the trash rack and keep the lights above the concentrated debris environment for longer service life.

Heavy-duty steps and handles

The heavy-duty steps and handles are manufactured from plate steel and solid rod to withstand the rigors of landfill operation.

High-capacity alternator

The high-capacity alternator provides additional power required for electrical accessories such as supplemental lights and communications and entertainment radios.

Raised prescreener helps reduce the likelihood of airborne paper or plastics plugging the air intake. It provides a larger air inlet.

Required Attachments

These options must be ordered in addition to the basic waste disposal arrangement.

Engine enclosures

The engine enclosures consist of perforated hood and side panels. The enclosures help prevent airborne materials from entering the engine compartment and help reduce radiator plugging which can cause cooling system problems.

Hydraulic and fuel tank guard

The hydraulic and fuel guard helps protect implement hydraulic oil tank, battery box and fuel tank. • Plates are included to cover the light openings after they are repositioned on top of cylinders and ROPS.

Supplemental cylinder mounted lights

The supplemental cylinder mounted lights (two front) are repositioned from the fenders opening to the top of the cylinders. The fender openings are covered with plates to prevent debris from entering.

Recommended Options

Several additional options are recommended to assist in matching your site requirements.

Caterpillar landfill blades

The Caterpillar landfill blades increase the dozing capacity in trash and helps prevent material from pilling over the blade and entering the radiator. Wear plates are available, and are recommended when working in highly abrasive materials.

Trapezoidal track shoes

The trapezoidal track shoes reduce refuse packing within the track and reduces track chain tightening and accelerated pin and bushing wear. The trapezoidal holes relieve packing by allowing the sprocket to punch out dirt and debris.

Front striker bars

Front striker bars are angled design to prevent debris from riding up the track and damaging the fenders or fuel and hydraulic tanks. • The striker bar mounts are included in the basic waste handling arrangement. This allows the striker bars to be easily mounted if they are not initially ordered.

Rear striker bars

The rear striker bars incorporate a rigid drawbar and housing with large access doors for storage on machine not equipped with rippers. For machines with rippers, striker bars mount on ripper frame.

SY-KLONE® turbine air precleaner

The SY-KLONE® turbine air precleaner removes large particulates from the incoming air before they reach the air filter and extendes filter life two to four times. The turbine inside creates a bortex with the incoming air to eject particulates. This unit converts the standard, single-stage air cleaner to a two-stage system. This option includes a screen and a dash-mounted air cleaner indicator.

Laminated thermal shields

The laminated thermal shields cover the exhaust stack inside the compartment, hot-side of the turbocharger, and the exhaust manifold. These shields reduce surface temperatures well below the flash point of most common combustibles encountered.

Radiator (AMOCS)

The radiator (AMOCS) utilizes an exclusive two pass cooling system and increased cooling surface area to provide significantly more cooling capacity than conventional systems. A trash core radiator is available with six fins per inch, replacing the standard nine fins per inch.

Flexxaire™ fan engine control system

The Flexxaire™ fan engine control system automatically reverses fan pitch at preset intervals to purge debris from the radiator and engine compartment. The operator also can manually purge the fan at any time. The thermostatically controlled fan provides optimum engine operating temperature.

ROPS-mounted air conditioner condenser and fans

The ROPS-mounted air conditioner and fans are relocated from the engine compartment to the ROPS. • Moving the condenser and fans away from the radiator reduces the concentration of debris and plugging. This relocation also increases the calculated cooling capacity of the machine for operation in higher temperatures.

Adjustable armrests

Adjustable armrest help improve operator comfort for shift-long productivity. No tools required.

Black painted hood, cylinders, and back of blade

The black painted hood, cylinders, and back of blade reduces glare from lights while operating at night and also while operating in direct sunlight.

Hydraulic rippers

Hydraulic rippers are available as single or multi-shank to penetrate tough material fast and rip thoroughly.

Total Customer Support

Unmatched in the industry! The most serviceable machines from the most committed dealers.


Make detailed comparisons of the machines you are considering before you buy. How long do components last? What is the cost of preventative maintenance? What is the true cost of lost production? Your Cat dealer can give you precise answers to these questions.

Dealer service

Dealer service response extends to programs such as Custom Track Service (CTS), Scheduled Oil Sampling (S•O•Ssm), and guaranteed maintenance contracts that get peak life and performance from your machine.


Your Cat dealer offers a wide range of services that can be set up under a customer support agreement when you purchase you equipment. The dealer will help you choose a plan that can cover everything from machine and attachment selection to replacement, to help you get the best return on your investment.

Service Capability

Whether in the dealer's fully equipped shop or in the field, you will get trained services technicians using the latest technology and tools.

Product Support

You will find nearly all parts at our dealer parts counter. Cat dealers utilize a world-wide computer network to find in-stock parts to minimize machine down time. Save money with remanufactured parts. You receive the same warranty and reliability as new products at a cost savings of forty to seventy percent.


The Cat elevated sprocket tractors modular design concept moves a generation ahead in simplified service and repair. Ease of maintenance and fast in field component exchange gives you more time on the job.

Grouped service points

Grouped service points and easy access to servicing areas make routine inspections fast and convenient.

Quick disconnect fittings

The quick disconnect fittings allow for fast diagnosis of the power train and implement oil systems.

Ecology drains

The ecology drains provide an environmentally safer method to drain fluids. They are included on the radiator, hydraulic tank and major power train components.

Diagnostic connector

A diagnostic connector allows the Cat Dealer's electronic test instrument to quickly troubleshoot the electrical system.

Pre-testing modular components

Pre-testing modular components before installation or after repair assures quality.

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