Dresser TD-20E Crawler Dozer

The Dresser TD-20E Crawler Dozer is a robust, high-capacity earthmoving machine built for heavy-duty construction, mining, and land-clearing operations. As part of the evolution of the TD-20 series, the “E” model combines enhanced hydraulics, improved visibility, and increased horsepower with the rugged durability Dresser machines are known for. It features a Cummins turbo diesel, a powershift transmission, and advanced hydraulic controls for greater productivity in demanding applications.

Engine & Powertrain:

• Engine: Cummins NTA-855, 6-cylinder turbocharged diesel

• Displacement: 855 cu in (14.0 L)

• Net Power: 210–220 hp

• Cooling System: Pressurized liquid-cooled with high-capacity radiator

• Transmission: 3-speed powershift with torque converter

• Final Drives: Planetary reduction

• Top Travel Speed: ~7.5 mph forward

Hydraulic System:

• System Type: Open-center hydraulic system

• Pump Flow: Approx. 45 GPM

• Relief Pressure: 2,500 PSI

• Blade Control: Pilot-operated joystick or lever

• Blade Options: 6-way PAT blade or semi-U/dozer blade

Dimensions & Performance:

• Operating Weight: ~47,000–48,000 lbs

• Blade Width: 11 ft (standard)

• Track Gauge: 84 in

• Ground Clearance: 18 in

• Drawbar Pull: Over 70,000 lbs

Maintenance Essentials:

• Key Service Points:

  • Regular transmission fluid and filter service

  • Pilot control and hydraulic cylinder seal replacements

  • Undercarriage roller, sprocket, and track inspections

• Common Issues:

  • Hydraulic control lag or drift: Fix with TD-20E pilot valve or seal kits

  • Transmission slipping or overheating: Repair using TD-20E transmission clutch packs

  • Track adjuster failure: Replace with TD-20E recoil springs and adjusters

Pro Tips:

• Always inspect for radiator clogging in dusty environments to avoid overheating

• Monitor joystick pilot pressure for delayed blade or ripper response

• Grease all blade pivot points weekly to maintain even grading performance

Serial Number Location:
Stamped on the frame rail near the front idler or on a plate located inside the operator cab below the left armrest or dash panel.

Parts Support:
Shop a full line of Dresser TD-20E parts at BrokenTractor.com, including transmission rebuild kits, hydraulic cylinders, undercarriage components, and blade assemblies.