International Harvester TD-7E Crawler Dozer

The International Harvester TD-7E Crawler Dozer is a next-generation upgrade from the original TD-7, built for mid-size grading, clearing, and dozing applications. With a hydrostatic transmission and increased horsepower, the TD-7E offers greater control, smoother operation, and more productivity in tight or sloped environments. This model was developed during IH’s transition into the Dresser branding, and it’s a favorite among contractors for its durability and ease of use.

Engine & Powertrain:

• Engine: International D239, 4-cylinder diesel

• Displacement: 239 cu in (3.9 L)

• Net Power: 70 hp

• Cooling System: Liquid-cooled

• Transmission: Hydrostatic drive — dual-path, infinitely variable

• Drive Type: Power-assisted steering via hydrostatic control

• Max Forward/Reverse Speed: ~6.5 mph

Hydraulic System:

• System Type: Open-center

• Pump Flow: 15–18 GPM

• Relief Pressure: ~2,200 PSI

• Blade Control: Lever-operated, 2 or 3-function valve

• Blade Options: 6-way PAT (Power Angle Tilt) or straight blade

Dimensions & Performance:

• Operating Weight: ~16,000–17,000 lbs

• Blade Width: 8 ft (standard)

• Ground Clearance: 14 in

• Track Gauge: 60 in

• Overall Length (with blade): Approx. 136 in

• Drawbar Pull: Over 17,000 lbs

Maintenance Essentials:

• Routine Service Focus:

  • Hydrostatic transmission fluid and filter changes

  • Hydraulic cylinder seal replacement

  • Track and roller lubrication

• Common Issues:

  • Hydrostatic hesitation or pressure loss: Address with TD-7E hydrostatic pump rebuild kits

  • Cylinder drift or leaks: Replace seals using TD-7E hydraulic cylinder kits

  • Track sag or alignment issues: Adjust or replace TD-7E track adjusters

Pro Tips:

• Change hydrostatic filters every 250 hours for optimal performance

• Monitor blade wear strip and replace before it damages blade corners

• Use a pre-heater or block heater in winter to prevent fuel system freeze-ups

Serial Number Location:
Stamped into the left frame rail near the front idler or found on a plate near the operator’s left side under the dash.

Parts Support:
Find everything from hydraulic kits to hydrostatic transmission parts for your TD-7E at BrokenTractor.com, where vintage and modern equipment solutions come together.