D6N WH Waste Handler

D6N WH Waste Handler

The Cat Track-Type Tractor waste handling arrangement machines are 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.

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Waste Handling Guards

Extensive guarding helps protect critical machine components, body panels and the cooling system from being damaged by debris under harsh waste handling environments.

Heavy-Duty Bottom Guards

The bottom guards serve a dual purpose. They help prevent damage to vital powertrain components, and keep debris out of the powertrain compartments.

Heavy-Duty Fenders

The fenders on the Waste Handling Arrangement are twice as thick as the standard fenders. Their design protects the edge of the sheet metal above the fender. The heavier fenders are able to better resist bending while working in a landfill application.

Heavy-Duty Battery Box

The steel on the battery box cover is thicker, compared to the thickness for the standard machine. This allows resistance to denting while working in a landfill.

Heavy-Duty Hinged Radiator Grille

The heavy-duty hinged radiator grille protects the cooling system. The grille is an angled plate type grille, hinged for easier access. The 45° angle of the bars diverts airflow up and away from the back of the dozer blade. Helps keep debris from damaging the radiator.

Idler Seal Guards

The idler seal guards help keep wire, fishing line, strapping, etc., from wrapping around and damaging the ideler 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.

Seal Guard Design

This design offers superior protection to the seal. Debris would have to make four 90° turns, penetrate the packing material, and then make two additional 90° turns.

Lift Cylinder Lines Guard

Helps protect lift cylinder hoses and tubes from debris damage.

Debris Resistant Features

A variety of debris environment features is included with the Waste Handling Arrangement to reduce plugging, extend service life, and enhance productivity.

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 between the top of the bulldozer fender's opening to the top of the cylinders, allowing them to project light over the trash rack and keep the lights above the concentrated debris environment for longer service life.

Raised Prescreener

Raised prescreener helps reduce the likelihood of airborne paper or plastics plugging the air intake. It provides a larger air inlet. Part of standard waste handling modification when turbine precleaner is not ordered.

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 100-amp alternator provides additional power required for electrical accessories such as supplemental lights and communications and entertainment radios. The debris shield helps prevent debris from entering into the alternator.

Required Attachments

These attachments must be ordered in addition to the basic Waste Handling Arrangement.

Clamshell Guards

The clamshell guard provides a non-rotating guard installed over the final drives to help prevent wire wrap. The guard includes inspection plates.

Ejector Fan

The ejector fan blade is designed with curved edges to help throw debris out radially. This helps prevent debris from clogging the radiator.

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 Flexxaire fan is controlled by the engine ECM (Electrical Control Module).

Radiator (AMOCS)

The AMOCS radiator 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.

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.

Heavy-Duty Engine Enclosures

The engine enclosures consist of perforated hood and side panels. A vertical hinge allows the doors to swing open horizontally for serviceability access. The enclosures help prevent airborne materials from entering the engine compartment and help reduce radiator plugging, which can cause cooling system problems.Note: If the sound suppression arrangement is ordered, the perforated side panels are replaced with solid doors and the perforated hood is replaced with larger rectangular perforations.

Hydraulic and Fuel Tank Guard

The hydraulic and fuel guard helps protect implement hydraulic oil tank, fuel tank, and battery box.

  • The hydraulic tank guard includes a hinged cover to protect the filter housing and fill spout.
  • The fuel tank guard is 10 mm (.375 in) thick compared to others at 6 mm (.25 in) thick. Incorporated in the tank guard is a fill cap guard.
  • The heavier steel helps make the fender area structurally stronger, allowing the fenders to resist bending.

Recommended Options

Features for peak performance. Several additional options are recommended to assist in matching your site requirements.

Tilt Cylinder Lines Guards

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

Rear Striker Bars

The optional rear striker bars incorporate a rigid drawbar and housing with large access doors for storage on machines not equipped with rippers. The rear striker bars are counterweight-ready in case additional rear weight is needed. For machines with rippers, striker bars mount on ripper frame.

Caterpillar Landfill Blades

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

Front Striker Bars

The front striker bars angled design prevents debris from riding up the track and damaging the fenders or fuel and hydraulic tanks.

Trapezoidal Hole Track Shoes

The trapezoidal hole 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.

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 while operating in direct sunlight.

Hydraulic Rippers

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

Differential Steering System

Differential Steering maintains power to both tracks while turning. Operator controls machine speed, direction and steering with the tiller bar controller, while maximizing production.


Elevated sprocket design isolates the final drives from ground induced impacts for excellent component life. The XL or the LGP configurations allow you to match the machine to your specific application.


Cat elevated sprocket tractors use a new generation modular design that simplifies service and repair. Easy maintenance and fast in-field component exchange gives you more time on the job.

Built-in Servicing Ease

Less service time computes to more production time. Major components are made as modules and most can be removed without disturbing or removing others.

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 powertrain 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 or access stored data with the use of Electronic Technician (Cat ET) or ECAP.

Pre-testing Modular Components

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

Complete Customer Support

Unmatched in the industry!


Your Cat dealer offers a wide range of services that can be set up under a Customer Support Agreement (CSA) when you purchase your 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.

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 40 to 70 percent.

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.


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.


Consider the financing options available as well as day-to-day operating costs. This is also the time to look at dealer services that can be included in the cost of the machine to yield lower equipment owning and operating costs over the long run.


Improving operating techniques can boost your profits. Your Cat Dealer has training videotapes, literature and other ideas to help you increase productivity.


Repair, rebuild or replace? Your Cat Dealer can help evaluate the cost involved so you can make the right choice.

Customer Service Agreements

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.


Engine Model
Cat® C6.6 ACERT™
Flywheel Power
Gross Power
Number of Cylinders


Operating Weight
Operating Weight XL-DS
Shipping Weight XL-DS
Operating Weight LGP-DS
Shipping Weight LGP-DS


Blade Type
XL SU-Blade Capacity with Trash Rack
XL SU-Blade Width
XL VPAT-Blade Capacity with Trash Rack
XL VPAT-Blade Width
LGP VPAT-Blade Capacity with Trash Rack
LGP VPAT-Blade Width


Shoes/Side - XL
Track Gauge – LGP
Track on Ground - XL
Track Rollers/Side - XL
Ground Contact Area – LGP
Ground Contact Area – XL
Shoes/Side – LGP
Track Gauge – XL
Track Rollers/Side – LGP
Track on Ground – LGP
Width of Shoe – LGP
Width of Shoe – XL


Ground Clearance
Width without Blade
Width with Blade
Height ROPS/Cab
Overall Length Basic Tractor
Overall Length with Blade


Each Additional Shank

Service Refill Capacities

Fuel Tank


1.0 Forward
2.0 Forward
3.0 Forward
1.0 Reverse
2.0 Reverse
3.0 Reverse