John Deere 350 Crawler Loader – Compact Loader Tractor

Description:

The John Deere 350 Crawler Loader is a compact and versatile tracked loader introduced in the mid-1960s and continuing through multiple revisions. The original 350 (no letter series) was a workhorse in the small loader category, ideal for trenching, grading, backfilling, and light excavation.

Equipped with a 57 HP 3-cylinder diesel engine, a rugged undercarriage, and a hydraulically controlled bucket, the JD 350 delivers dependable performance in tight construction zones, farms, and logging yards. Operators appreciated the gear-drive transmission and open-center hydraulic system, while mechanics valued the loader’s accessibility for repairs.

Its long legacy and widespread use have made it easy to source high-quality replacement parts and rebuild kits to keep these machines running strong.

Key Specifications:

Key Features:

• Compact Loader Power:
  The JD 350’s 57 HP diesel engine offers solid digging and loading force for its size.

• Manual Gear Drive:
  Simple and reliable 8-speed transmission provides consistent torque in rough terrain.

• Open Center Hydraulics:
  Smooth, responsive loader control with easy-to-maintain components.

• Stout Undercarriage:
  With 5 bottom rollers per side and robust track shoes, it stands up to repeated loading cycles.

• Excellent Visibility:
  Designed with low-profile loader arms and a clear line of sight to the bucket.

Serial Number Information:

Location: The serial number tag is typically mounted on the front left side of the main frame, just behind the loader arm pivot point or under the operator’s seat on early units. Always verify this number before ordering parts.

Common Replacement Parts

Keep your JD 350 Loader productive with parts from Broken Tractor:

• Engine:
  Pistons, sleeves, gasket kits, fuel injectors, water pumps

• Transmission & Clutch:
  Clutch kits, torque converter components, gear sets

• Undercarriage:
  Track chains, rollers, sprockets, recoil springs, adjusters

• Hydraulics:
  Loader lift cylinders, seal kits, control valves, hoses

• Loader Assembly:
  Bucket pins and bushings, cutting edges, tilt cylinders

Maintenance Schedule:

Common Issues & Fixes:

• Loader won't lift or slow hydraulics:
  Often caused by worn hydraulic seals or a weak pump. Fix with a hydraulic seal kit or pump rebuild.

• Clutch slipping or gear grinding:
  Worn friction discs or throwout bearings — replace with a complete clutch rebuild kit.

• Track wear or misalignment:
  Replace worn track components like chains, sprockets, or adjusters.

• Engine hard starting or smoke:
  Check injector condition, air filter, and consider an engine overhaul kit.