Dressta TD40R Parts | Final Drive, Transmission & Components | FP Smith Parts & Equipment

Leading the Parts Industry since 1947. FP Smith Parts & Equipment stocks a wide range of Dressta TD40R parts for this large production crawler dozer. We maintain real physical inventory of new OEM surplus, quality used, and reconditioned components at our 20-acre facility in Fairfield, California. We are not brokers — most parts are on the shelf and ready to ship.

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Dressta TD40R Parts Inventory

The Dressta TD40R (including TD-40R Extra) is a heavy production crawler dozer built for extreme-duty construction, mining, and bulk material applications. It features high drawbar pull, a robust modular powertrain, and a durable undercarriage. We support owners and fleets with both common wear items and hard-to-find components.

Parts Categories We Stock for the TD40R

• Undercarriage — Track chains, track pads/shoes, rollers (single & double flange), idlers, sprockets, links, pins & bushings, track adjusters
• Transmission & Torque Converter — Transmission assemblies, torque converters, clutch packs, seals, pumps, valves, and related piping/components
• Final Drives — Bull gears, pinion shafts, bearings, housings, and seal kits
• Hydraulics — Pumps, valves, cylinders, seal kits, hoses and fittings
• Engine & Cooling — Rebuild kits, bearings, gaskets, radiators, oil coolers, and related components
• Steering, Brakes & Electrical — Steering clutches/drives, brake parts, starters, alternators, and sensors

Transmission & Torque Converter Piping

We also stock and source Dressta TD40R transmission and torque converter related components, including piping, lines, fittings, seals, and supporting hardware commonly needed during powertrain service or rebuilds.

Why Choose FP Smith for Dressta TD40R Parts?

• Physical Stocking — Millions of parts on hand in Fairfield, CA — ready for same-day shipping on most orders placed before 3 PM PST
• Legacy Expertise — Decades of experience with Dressta, Dresser, and related International Harvester / Komatsu-era equipment
• Hard-to-Find Components — Strong inventory of surplus and used parts that are no longer readily available through traditional dealer channels
• Cost Savings — Quality used, reconditioned, and OEM surplus options at competitive prices versus new OEM list
• Technical Support — Knowledgeable team that understands interchanges, applications, and model-specific requirements
• Rebuild Capability — In-house and partner support for transmissions, torque converters, and major components

In addition to the TD40R, FP Smith carries parts for many Dressta and Dresser crawler models, including TD15B, TD15C, TD15E, TD20B, TD20E, TD25G, TD25H, TD25M, TD40B, TD40C, TD40E and others.

Dressta TD40R Technical Specifications

Key specifications for the Dressta TD40R and TD-40R Extra series (based on factory and published data). Actual figures vary by configuration, emission tier, blade, ripper, and options.

Engine

• Make / Model — Perkins 2806F / 2806J (Tier 4 Final / Stage V common on TD-40R Extra)
• Type — In-line 6-cylinder, turbocharged & charge-air cooled diesel
• Displacement — 18.1 L (912 cu in)
• Bore × Stroke — 145 mm × 183 mm (5.71 in × 7.20 in)
• Net Flywheel Power — approximately 397–425 kW (532–570 hp) depending on version and rating
• Rated speed — typically 2,000 rpm

Weights

• Operating weight (typical with Semi-U blade, single-shank ripper, ROPS/FOPS cab, full fluids) — approximately 67,850 kg (149,584 lb)
• Configured operating weight range — roughly 67–68+ metric tons depending on attachments and options

Powertrain & Travel

• Transmission — 3-speed powershift with 2-speed steering (effectively 6 forward / 6 reverse speeds)
• Torque converter — Single-stage
• Max travel speed — Forward approx. 12.0 km/h (7.5 mph) / Reverse approx. 14.9 km/h (9.3 mph)
• Final drives — Double-reduction planetary type, modular design

Undercarriage

• Track rollers — 7 per side
• Standard track shoe width — 610 mm (24 in); wider options available
• Track length on ground — 3,610 mm (11 ft 10 in)
• Track gauge — 2,500 mm (8 ft 2 in)
• Shoes per side — typically 39
• Ground clearance — approximately 600 mm (23.6 in)

Blade & Ripper (typical)

• Semi-U blade capacity — 18.6 m³ (24.3 yd³)
• Full-U blade capacity — 22.8 m³ (29.8 yd³)
• Coal blade capacity — up to 39.8 m³ (52 yd³)
• Multi-shank ripper — up to 3 shanks, max penetration ~1,000 mm (39 in)
• Single-shank ripper (standard) — max penetration ~1,290 mm (51 in)
• Deep single-shank option — max penetration ~1,670 mm (66 in)

Note: Specifications vary by serial number range, emission tier (Tier 4 Final / Stage V common on many TD40R Extra units), blade/ripper options, and regional configurations. Always verify against the machine’s serial number and the official Dressta operator or service manual for critical applications.

Perkins 2806 Engine Maintenance Schedules

Many Dressta TD40R / TD-40R Extra machines are powered by the Perkins 2806 series (Tier 4 Final / Stage V). Proper maintenance is critical for longevity and reliability in heavy dozer applications. The intervals below are typical industrial guidelines — always follow the specific Operation & Maintenance Manual for your engine serial number and duty cycle. Oil analysis programs can often safely extend intervals.

Typical Service Intervals (Industrial / Construction Duty)

• Engine oil & oil filters — Follow the interval specified in the Perkins O&M manual (commonly in the 250–500 hour range depending on oil quality, filtration, and duty cycle). Oil analysis is strongly recommended for optimizing change intervals.
• Fuel filters — Typically every 500 hours or as indicated by restriction. Critical on high-pressure common-rail systems.
• Air filters — Inspect frequently; replace when restriction indicates or according to operating conditions. Do not over-service clean filters.
• Coolant / SCA / DEF (where equipped) — Check regularly. Maintain proper coolant condition and DEF quality/level on Tier 4 Final / Stage V engines. Full coolant change intervals depend on coolant type.
• Valve adjustment / lash — Follow the interval in the specific engine manual (often in the 1,500–2,000 hour range).
• Aftertreatment system — Monitor DPF/SCR health and perform required regenerations and service as indicated by the machine.

Additional daily/weekly checks include oil level, coolant level, fuel water separator drain, air intake restriction, DEF level (if equipped), and visual inspection for leaks. Always use oils and fluids meeting the manufacturer’s specifications for your specific engine configuration.

Undercarriage Wear Management – TD40R

The TD40R uses a sealed and lubricated track system with a low-drive undercarriage design. Proper management of track tension, cleaning, and component wear is one of the biggest factors in owning-cost control on these large dozers.

Key Undercarriage Features

• 7 track rollers per side, lifetime-lubricated rollers and idlers
• Standard 610 mm (24 in) track shoes; wider options available
• Track length on ground: 3,610 mm (11 ft 10 in)
• Track gauge: 2,500 mm (8 ft 2 in)
• Typically 39 shoes per side with split master link
• Lubricated Track System designed to reduce internal pin & bushing wear and external bushing/sprocket wear

Wear Reduction Best Practices

• Track tension — Incorrect (especially over-tight) tension dramatically accelerates wear on rollers, idlers, sprockets, links, and final drives. Adjust to the sag specification in the operator’s manual. In packing conditions (mud, snow, clay) slightly looser adjustment is often recommended.
• Cleaning — Regularly clean packed material from the undercarriage. Packing increases loads and accelerates wear.
• Inspection — Routinely check rollers, idlers, sprocket segments, track links, pins & bushings, and shoe hardware. Measure wear and track remaining life so components can be turned, rebuilt, or replaced at the right time.
• Matching components — Replace or rebuild groups of related parts together when practical (e.g., chains with sprockets) to avoid accelerated wear of new parts against worn mating surfaces.
• Operating habits — Minimize high-speed reverse travel, sharp turns under load, and unnecessary spinning when possible. These conditions increase bushing and sprocket wear.

FP Smith stocks a wide range of undercarriage components for the TD40R including track chains, rollers (single and double flange), idlers, sprockets/segments, links, pins & bushings, track shoes, and related hardware. We can also help with hard-to-find items and advise on interchange or rebuild options.