The 2007 CAT D7R WH XR DS II is a special design of Caterpillar mid-size dozers, renowned for power and durability in challenging conditions. Buying a 2007 CAT D7R WH XR DS II crawler dozer is the preferred and economical choice for landfill management, mining, and land-development companies. It is equipped with a reliable powertrain and a balanced operating weight.

It is still in demand in 2025, despite the availability of advanced machines, for its simple mechanics and easy replacement parts option. Mico Cranes and equipment, TX, offers well-maintained D7R XR WH DS II for excellent productivity and low operational costs. This detailed guide provides a clear overview of its specifications, applications, maintenance guidance, and buyer considerations.

Overview of 2007 CAT D7R WH XR DS II

The D7R XR DS II is a mid-category dozer that comes between the compact D6 and heavy-production D8 series. It is more stable than D6 and consumes less fuel than D8 crawler dozers. Its XR version indicated extra reach for pulling, pushing, and grading. DS is for the Dual Shank Ripper to tear consolidated debris layers, and Series II is for improved emission control. 

Mico Cranes and Equipment, TX, has a CAT D7R XR waste handler dozer with low hours and in ready-to-work condition. Its 22” ES track shoes and semi-U blade perform well in landfill operations with EROPS and a secure guarding system. Precise mobility with differential steering control, Product Link, and easy-access service points ensures operator comfort. 

Major Service and CAT-Certified Rebuild History

Feature	Service Date	Major Rebuild
Engine	Nov 2022 – only 1,568 hrs	The CAT Reman 3176C/C9 family engine is installed.
Undercarriage	Mar 2022 – 1,797 hrs on UC	The XR extra reach undercarriage is refreshed to enhance structural integrity.
Hydraulics	2022–2023	Hydraulic cylinders, hoses, and pumps are resealed for reliability.
Cooling System	Dec 2024 – 207 hrs since	The radiator and fan are serviced.
Cab and Controls	updates 2025	A/C compressor and electrical wiring are improved.
Blade and Attachments		Regular inspection of the semi-U blade and multi-shank ripper for effective operations.
Tech Upgrade Potential		It has Product Link and is compatible with advanced grade control.

Full Technical Specifications of CAT D7R XR DS II

The technical specifications of the Caterpillar D7R Series II dozers are well-suited for extended-reach operations with XR configurations. The engine is fuel-efficient and features simple electronics to minimize downtime. Moreover, waste-handling features with a larger blade ripper improved precision during landfill operations.

CAT Reman Engine

2007 CAT D7R WH XR DS II has a 6-cylinder Cat 3176C diesel engine with integrated ACERT technology for fuel efficiency and emission control. It can generate 192 kW (258 hp), which is reliable for high torque at low engine RPM. 

This is supported by turbocharging, which helps control fuel consumption and deliver adequate power for heavy-duty pushing and pulling. The displacement capacity is 10.3 L.

Powertrain and Transmission 

Caterpillar equipped this crawler dozer with Power Shift transmission and a single-stage torque converter for precise power distributions. This torque converter transmits 70% of the engine’s power to the dozer blades, while the remaining 30% is utilized for driveline efficiency.

The smooth shift of forward/reverse gear, with typical forward speeds in three modes of 2.2 / 3.8 / 6.6 mph. For undercarriage strength and durability, planetary final drives enable it to withstand harsh conditions. 

Operating Weight and Transport

The operating weight for standard D7R is 25,300 kg (55,786 lb) while the waste handler variant reaches up to 27,920 kg (61,500 lb). In the WH configuration, the extra weight is due to heavy-duty blades, a dual ripper, and a guarding system. 

Dozer Size Dimensions

The overall length of the 2007 CAT D7R WH XR DS II is approximately 4.73–4.74 m (15.5 ft) without blade dimension. However, the average blade width is around 2.88–3.0 m, depending on its type. The height of this dozer is 3.29 m, which may vary depending on the ROPS canopy and other safety features. 

Blade Types and Capacities

Caterpillar offers a flexible coupling of D7R with multiple blade styles and capacities. For XR configurations with 16.8–22.0 m³ (~22.0 yd³) capacity, U blades are available. Moreover, semi-U blades are most frequently connected to provide 11–18 m³ (14 — 18.4 yd³) materials. S-Blade offers better control over LPG variants.

Undercarriage and Tracks

The solid undercarriage of the CAT D7R WH XR DS II features 7 track rollers for smooth, stable mobility over uneven terrain at landfill sites. Single-grouser and trapezoidal hole track shoes offer waste handler versions more security and low ground pressure. The track shoe width is 560 mm / 22 in for handling challenging operations in waste recycling facilities. 

Hydraulics Controls

To provide precise control of blades and a ripper, this model introduces advanced load-sensing and pilot-controlled hydraulics. In fact, a highly responsive hydraulic system is essential for accurate control of blade pitch, tilt, and angle. 

Ripper and Work Tools

A multi-shank parallelogram ripper is practical for tearing down compact layers of waste. It is available in 1–3 heavy-duty shanks. According to working requirements, this dozer can be attached with different winches and rear attachments. 

Operator Station and Safety

ROPS/FOPS-secured cabs with enclosed interiors and climate control features offer operator comfort. The air filters in the cab are essential for dust and odor control and are available in WH variants. Improved visibility with a wide windscreen and back view mirrors. Differential steering offers precise control.

Serviceability and Maintenance

CAT constructed this model with modular components that are easy to replace and take less time in maintenance and repairs. Moreover, low-ground-level accessible service points reduce operator fatigue. The security guards around vital parts lessen the downtime. The global support system for CAT, with easy access to spare parts, improves the resale value of D7R WH. 

Waste Handler (WH) — landfill-specific features

The WH (Waste Handler) CAT crawler dozers are purpose-built to handle the challenging dusty, high-heat, and corrosive landscape of landfill sites.

• Extensive guarding: The protective shields, panels, and guards are installed around the engine, radiator, hydraulic, and belly pan for safety. Moreover, rear striker bars and deflectors are used to prevent waste material from wrapping. 
• Cooling & air management: The radiator of this dozer has a high surface area for fast cooling, and reverse fan technology controls the internal temperature. Air vents and turbine precleaners reduce the chances of the cooling system choking with dust. 
• Sealing: To make the interior enclosed to protect against harsh surroundings, rubber or foam sealings are used.

Real-World Performance Insights of CAT D7R WH XR DSII

Indeed, there are advanced crawler dozers with more precise control and automations, but D7R WH XR DSII is still in demand. The reason is its simple design and consistent performance at low operational costs, which help it handle the varied nature of landfill conditions. 

Superior Pushing Power

The waste handlers are specially designed dozers for managing waste management facilities with mixed materials. CAT integrates D7R WH with a reliable engine that can operate at low RPM and manage powerful pushing operations. 

• In hard-packed or rocky layers: the XR’s extended track enables stable mobility and control of track slips. 
• In wet dense debris: The LPG track shoe is perfect for navigating soft and slippery terrains.
• In loose sand, the optimal operating weight and equal power distribution reduce material rollback.
• Slope Stability and Balance

The large track dimensions of the XR configuration help manage the machine’s weight on sloped and uneven terrain. The operators experience minimal machine pitching while navigating on berms and levees. Therefore, it is deployed for utility installation and maintenance projects.   

Operator Visibility and Comfort

The CAT crawler dozers with Series II cab are highly user-friendly. It has a large glass panel with no blind spots for the driver. The enclosed pressurized airflow system keeps the machine interior pleasant to work in, even in harsh conditions for long working hours. Hydraulically control differential steering to provide precise blade moves for job site safety.

Harsh-Climate Performance

With advanced cooling and guarding systems, the D7R Series II performs exceptionally well in harsh climates. The reliable radiator and cooling components address overheating and protect against debris-laden air. 

XR Range with Extended Reach

The XR configuration (“Extra Range”) boosts the crawler dozer undercarriage support. A large track with lower ground pressure and improved reach delivers high productivity. 

Applications and Industry Use Cases of CAT D7R

CAT waste handlers are purpose-built to handle the most challenging waste recycling and dumping site operations. This D7R dozer is effective across various industries thanks to its wide track and low ground pressure. 

Landfill Operations

The advanced cooling system and protective guards around sensitive parts make this dozer a go-to partner for large-scale waste management operations. 

Heavy Earthmoving

Strong blades with high pushing power and an extended track footprint enable this crawler dozer to transport a massive amount of materials. 

Mining and Quarrying

A durable undercarriage with guards can withstand abrasive conditions. Moreover, a reliable cooling system and good visibility make it ideal for large-scale mining operations. 

Road and Land Development

XR geometry provides fine grading for roadway construction and is easy to navigate mid-size sites. Professionals use it to contour roadbeds and backfill trenches.

Forestry and Land Clearing

Optional rippers can be added to remove tree stumps and compacted subsoil for landscaping. XR reach supports massive land clearance and debris management

Reclamation Projects

Low-to-moderate ground pressure is an appealing feature of the D7R for emergency response practices. Moreover, it has lower operational expenses, making it more suitable for extended-hours jobs. 

Comparison of D7R WH XR DS II With Related Models

Here, we provide comprehensive analyses of the standard features of waste handler crawler dozers, along with market-available options to secure your purchase. 

D7R WH XR DS II vs D7R (Standard)

Measuring Metric	D7R WH XR DS II (2007)	D7R Standard
Engine power	240 hp net with Cat 3176C / C9 diesel engine	Similar features.
Operating weight	25,000–27,000 kg due to powerful blades and guards.	500–1500 kilograms less machine weight
Track length	XR configuration for a long track with a larger contact area.	Shorter track
Ground pressure	Low with equal weight distribution	Standard configuration.
Undercarriage life	A longer, more secure lifespan with heavy-duty push force.	Standard wear patterns
Productivity	Super grading operations.	Better to navigate confined spaces.
Best use	Finish grading for extensive hours.	Heavy-duty operations.

The XR configuration with WH features increases the grading and stability compared to the standard D7R crawler dozer. 

D7R WH XR DS II vs D7R LGP

Measuring Metric	D7R WH XR DS II	D7R LGP
Design focus	High productivity in challenging conditions.	Flotation over soft terrains.
Track shoe width	560–610 mm	914 mm for minimal ground pressure.
Ground pressure	Moderate range	Too much less
Productivity	Better grading over the mixed nature of materials.	Effective on wet and muddy terrains.
Undercarriage life	More durable over abrasive surfaces.	Harsh terrains speed up the wearing.

For soft, sandy, and muddy terrains, the LGP variant is a practical choice, while selecting the XR configuration delivers improved grading reach. 

CAT D7R vs Komatsu D85EX / John Deere 850J

Measuring Metric	Cat D7R XR DS II	Komatsu D85EX	John Deere 850J
Engine Power	240 hp	264 hp	205–225 hp
Operating weight	25–30 t	29–31 t	18–20 t
Undercarriage	Solid frame with elevated design.	Long track with high contact area.	Simple design with fewer rollers and less weight.
Productivity	Medium-sized with reliable performance	Large-scale design for massive pushing.	Small-scale operations with fast cycle time.
Terrain	Stable over uneven and sloppy surfaces.	Excellent mobility and perfect balance.	Compact size suitable for confined spaces.
Resale value and parts availability	Strong customer support and dealership.	Komatsu global support network.	Parts availability varies in different markets.

Productivity: Choose the powerful D85EX for massive material handling. However, for working over uneven surfaces, D7R XR DS II is excellent.

Operating cost: Newer models are more fuel-efficient, but a lower acquisition cost and simpler repairs make the D7R WH XR DS II more appealing.

Undercarriage life: XR specification enhances track reach and strength, which helps navigate challenging terrain. D7R WH XXR DSII is suitable for waste dumping sites and mining operations. 

Resale value: CAT products are highly sought-after machines with their durable design and simple maintenance/repair options. Moreover, the used Cat waste handlers for sale offer a higher resale value than new models. 

Terrain performance: Deployed low-ground pressure crawler dozers with improved XR features for fine grading and low operational expenses. It can push hard without overheating. 

Why the 2007 CAT D7R WH XR DS II Still Holds Market Demand

This CAT mid-size crawler dozer is reliable in used equipment for sale markets for simple mechanics and easy to rebuild at affordable costs. Landfill managers, contractors, and mining experts trust this wide-track dozer for high productivity and reduced downtime. 

Durability Built and Powertrain

Caterpillar designed the undercarriage and chassis with reinforced steel with an elevated-sprocket design to withstand high-impact workloads. Secure guarding and cooling systems provide continuous heavy-duty operation for more than 10,000–20,000+ operating hours. Robust 3176/C9 engine and precise drivetrain for maximum uptime.

Mechanical and Electronic Simplicity

In fact, the automatic diagnosis system with digital controls for emission and grading makes new models more complicated and expensive to repair. In challenging working conditions, the CAT D7R WH is a secure investment that helps meet high productivity targets without costly maintenance. 

Real-World Proven Reliability

This old model has a proven track record of success in landfill settlements, mining, forestry, and land-clearance operations. D7R WH has excellent surface grip, reducing occupational hazards and safety concerns. 

Easy Access to Spare Parts

D7R is supported with CAT OEM and aftermarket technical support to encourage users to invest in this variant. In case of a malfunction, you don’t need to wait for parts or for repair service availability, which reduces downtime. The fast rebuild with access to cheap parts overcomes the appeal of new-tier emissions machines.

High Resale Value

The higher buyer demand for D7R WH XR DS II is holding its selling price, especially for units with less than 10,000 operational hours, which are sold immediately. The sharp depreciation curve and high maintenance services push buyers towards economical second-hand machines with proven performance. 

Common Issues, Inspection Checklist and Maintenance Insights

Crawler dozers with water-handling features are the world’s most trusted machines for heavy-duty landfill operations in dusty, corrosive environments. Thus, selecting a used CAT waste handler for sale required careful examination of its critical components. 

Undercarriage Wear

The parts of the track are the most expensive replacements in D7R crawler dozer repairs. Inspecting the wearing signs around the rollers, track links, and sprocket bushings is recommended. The track tension should be within the CAT-suggested limits to ensure precise movements and optimal fuel combustion. 

Hydraulic Line Leaks

The strength of the dozer’s hydraulic system directly affects steering wheel and blade movements. The abrasion around connected pipes, seals, and cylinders reduces the fluid pressure ratio. The valve choking causes O-ring fatigue. Minor hydraulics issues are cheap to resolve, but unattended leaks can severely impact dozer capability. 

Transmission and Torque Converter

When you experience a hard start, delayed gear shift, overheating, or a slip in the brake clutch, it indicates wear in the transmission pack. Equal power distribution is essential for machine stability on uneven surfaces. 

Blade Trunnion and Frame Cracks

Mechanical stress on the blade bearing or the exterior edges affects its grading power. Moreover, the weld signs on the C-frame and the bending indicate poor handling practices by the previous user. 

Cooling System Weak Points

For landfill operations, the strength of radiator cores, reversing fan performance, and water pump accuracy are equally important. Inspect pH and metal-contamination tests on coolants to identify hidden issues in the cooling system.

Used Buying Checklist for D7R WH XR DS II

Before making a final decision, conduct an engine blow-by test, undercarriage inspection, smooth gearshift test, hydraulic precision check, and review previous maintenance logs. SOS sampling results are credible and are provided. 

• Good Hour Meter Reading should be between 6,000 and 10,000 hours.
• Less than 6,000 hours indicates premium conditions.
• If 10,000–15,000 hours with well-documented rebuilds, it is acceptable. 

Warning Signs of Abuse

• Black smoke from the engine shows issues in the fuel injector and the turbo.
• Oil-burning smell while heavy pushing due to clutch pack wear
• Significant oil spills around the belly pans 
• Excessive frame welds impact job site safety.

Maintenance Tips That Increase Lifespan

In fact, preventive maintenance and proper handling practices are essential to keep the 2007 CAT D7R WH XR DS II in optimal condition. Consider the following guidelines.

Undercarriage Care	Maintain the CAT-suggested track tension Replace weak pins and bushings Regularly cleaning the track Avoid sudden turns
Fluid Change Intervals	After 250 hours, replace engine oilCheck final drive after 500 hoursAfter 1000 hours, test the hydraulic fluid.Inspect the torque converter
Greasing Schedule	Blade junction pointsChassis pivotsHydraulic cylinder pinsEqualizer bar
Cooling Maintenance	Clean radiator and connected partsThoroughly wash the coolant system after 2 yearsPeriodically change fuel and air filters
Seasonal Maintenance	Winter: Use heat-block oils, inspect the battery, and start with warm-ups.Summer: More frequent radiator and fan cleaning. Inspect coolant level.

Used 2007 CAT D7R WH Dozer Near Me

The 2007 CAT D7R WH XR DS II is the most trusted mid-size crawler dozer, featuring a durable structure, stable mobility, simple mechanics, and low operating costs. Professionals prefer CAT used waste handlers for sale in Houston, Texas, for their proven performance and substantial resale value.

Mico Cranes and Equipment, TX, offers high-quality landfill dozers and compactors at affordable prices to keep your projects on schedule and under budget.

FAQs

Q1: Does the 2007 D7R WH XR DS II still handle challenging grading operations?

Yes, CAT products are renowned for their long service life. Moreover, its old models deliver performance similar to the new ones, with affordable and fast rebuilds. D7R WH has a simple structure, secure guards, and a powerful engine to handle challenging landfill operations. 

Q2: What is D7R WH’s pushing capacity?

The load-handling capacity or drawbar force of the CAT D7R WH is 60,000–70,000 lbs. However, it may vary depending on the attached blade and the terrain’s soil conditions. The XR specifications of this crawler dozer offer superior traction and high surface grip over slippery surfaces.

Q3: Is this D7R WH XR DS II fuel-efficient?

Yes, the precise control over blades and traction reduces the need for rework. Moreover, this model consumes 7–16 gallons per hour under heavy-load conditions. The simple mechanical and electronic controls reduce unnecessary fuel consumption on complicated systems. 

Q4: What is the safe hour meter reading for the D7R WH used unit?

This CAT dozer still performs well even after 10,000 to 12,000 operational hours. However, it is recommended to purchase a unit with more than 10,000 operating hours with its CAT-certified rebuilds of the significant system. It will secure your investment and deliver long-term durability.