John Deere 544D Wheel Loader

The John Deere 544D Wheel Loader is a durable, mid-size production loader built for construction, aggregate handling, and farm applications. Known for its mechanical simplicity, strong torque output, and dependable hydraulic system, the 544D remains a popular machine for operators who value rugged performance and easy serviceability.

Engine & Power

• Engine: John Deere 6-359 diesel

• Displacement: 5.9L (359 cu in)

• Gross Power: ~105–115 hp (depending on year)

• Fuel System: Mechanical injection

• Emissions: Pre-emissions (no Tier requirements)

Transmission

• Type: Power Shift transmission

• Gears: 4 forward / 4 reverse

• Torque Converter: Heavy-duty

• Drive: 4WD

The power shift system provides smooth gear changes and strong pushing power for truck loading and stockpiling.

Hydraulic System

• System Type: Open-center hydraulic system

• Operating Pressure: ~2,500–3,000 psi

• Pump Type: Gear pump

• Lift & Tilt Cylinders: Dual-acting hydraulic cylinders

Common service parts include:

• Hydraulic cylinder seal kits

• Hydraulic hoses and fittings

• Loader control valve components

Dimensions & Operating Weight

• Operating Weight: ~23,000–25,000 lb

• Bucket Capacity: 2.0–2.5 cu yd

• Hinge Pin Height: ~12–13 ft

• Wheelbase: ~9 ft

Performance Highlights

• Excellent breakout force for aggregate loading

• Heavy-duty frame and articulation design

• Reliable wet-disc brake system

• Easy mechanical service access

Common Maintenance Needs

• Engine oil and filter replacement

• Fuel filter and air filter service

• Hydraulic oil and filter changes

• Axle oil and wet brake system inspection

Keep your loader in peak condition with dependable filter kits and brake components.

Common Issues & Quick Fix Solutions

1. Hydraulic Cylinder Leaks
Replace worn seals using high-quality hydraulic seal kits.

2. Transmission Slipping or Hard Shifting
Inspect transmission fluid level and condition; check torque converter and clutch packs.

3. Brake Wear or Reduced Stopping Power
Replace worn wet brake discs and inspect axle seals promptly.

4. Articulation Pin & Bushing Wear
Replace worn loader pins and bushings before frame damage occurs.

Pro Tips

• Grease articulation and loader arm pivot points daily.

• Monitor hydraulic hose wear near the articulation joint.

• Address minor oil leaks early to prevent pump or transmission damage.

Serial Number Information

The serial number plate is typically located on the right-hand side of the frame near the articulation joint or inside the cab area. Always confirm your serial number before ordering parts to ensure correct fitment.