Case 855D Crawler Loader – Specs, Parts & Serial Numbers (1980–1994)

Description:

The Case 855D Crawler Loader (produced from 1980 to 1994) is a robust, high-performance track loader known for its reliability and power in tough jobsite conditions. A workhorse in the construction and forestry industries, the 855D features a powerful Case diesel engine, hydrostatic drive, and rugged undercarriage — making it ideal for heavy-duty applications like grading, land clearing, and loading.

Engine Specs:

• Engine Make: Case

• Engine Model: 336BD

• Type: 4-cylinder diesel, naturally aspirated

• Displacement: 336 cubic inches (5.5L)

• Net Horsepower: ~85 HP @ 2200 RPM

• Cooling System: Liquid-cooled

• Fuel Capacity: Approx. 42 gallons

Transmission:

• Type: Hydrostatic drive

• Gears: Infinite forward and reverse via twin-lever control

• Steering: Dual steering levers with hydrostatic power steering

• Brakes: Spring-applied, hydraulic release

Hydraulic System:

• Pump Flow: Approx. 30 GPM

• System Pressure: ~2,000 psi

• Loader Lift Capacity: ~9,000 lbs

• Control Type: Mechanical lever-operated valves

• Common Hydraulic Parts:

  • Hydraulic Cylinder Seal Kits for Case 855D

  • Loader Control Valves & Linkages

Dimensions & Weight:

• Operating Weight: ~25,000 lbs

• Track Width: 15.5 in (single grouser)

• Ground Clearance: 13 in

• Loader Bucket Width: 96 in (standard)

• Bucket Capacity: 2.25 cubic yards

Maintenance Needs:

• Regular greasing of pins and bushings

• Hydraulic filter and fluid replacement every 500 hours

• Track chain and sprocket inspection for wear

• Engine oil and filter changes every 250 hours

• Case 855D Undercarriage Parts

• Engine Rebuild Kits and Gaskets

Common Issues & Fixes:

• Hydrostatic drive slippage: Often due to worn drive pump — inspect or replace hydrostatic pump seals.

• Weak hydraulics: Clogged filters or worn cylinders — consider a hydraulic seal kit.

• Brake failure: Spring-applied brakes often fail due to hydraulic actuator leaks — replace with brake kits.

• Track alignment issues: Frequently from worn track adjusters or broken recoil springs — available here.

Pro Tip:

Use Case Hy-Tran fluid for optimal hydraulic and transmission performance. Always check for serial breaks in parts compatibility.

Serial Number Location:

Stamped on a plate near the left front loader tower or inside the operator's cab, usually riveted to the chassis frame.