John Deere 331G Compact Track Loader – Specs, Parts & Maintenance

Description:

The John Deere 331G Compact Track Loader is a high-performance, vertical-lift machine built to handle heavy-duty construction, forestry, and land-clearing tasks. With industry-leading hydraulic power, enhanced visibility, and a spacious operator station, the 331G is engineered for productivity and precision in extreme working conditions.

Engine & Power

• Engine Make: Yanmar 4TNV94FHT

• Engine Type: 4-cylinder, turbocharged Tier 4 Final diesel

• Displacement: 186 cu in (3.1 L)

• Gross Power: 91.2 HP

• Net Power: 88.5 HP

Transmission & Drive

• Drive System: Dual-path hydrostatic drive

• Travel Speed: 5.5 mph (standard), 8.0 mph (2-speed optional)

• Track Width: 17.7 in (standard), optional 15.8 in or 13 in

Hydraulic System

• Standard Flow: 25.9 GPM

• High-Flow Option: 41.1 GPM

• System Pressure: 3,500 psi

• Auxiliary Hydraulics: Electric over hydraulic, with quick couplers

Dimensions & Performance

• Operating Weight: 12,100 lbs

• Rated Operating Capacity: 3,100 lbs

• Tipping Load: 8,857 lbs

• Lift Type: Vertical

• Height to Hinge Pin: 132 in

• Ground Clearance: 9.4 in

Maintenance Essentials

• Engine Oil & Filter

• Fuel/Water Separator

• Air Cleaner (Dual Element)

• Hydraulic Oil & Filter

• Undercarriage Cleanout & Track Tensioning

? Shop John Deere 331G parts including track tensioners, hydraulic kits, final drives, and engine components for top performance.

Common Issues & Quick Fixes

• DPF and Regen Problems: Avoid idling and perform manual regens when needed

• Final Drive Leaks: Replace seals or entire drive unit using 331G final drive kits

• Track Wear or Derailment: Check tension regularly and clean track rollers

• Hydraulic Overheating: Clean coolers and inspect return filters

Serial Number Location

Stamped on the machine frame under the lift arm (left side) or inside the cab door on a metal plate.

Pro Tip: Use only approved DEF (diesel exhaust fluid) for Tier 4 compliance. Always monitor regen cycles to avoid costly downtime from DPF clogging.