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The History and Role of the John Deere 555A
The John Deere 555A crawler loader was introduced in the late 1970s as part of Deere’s push to expand its mid-size track loader lineup. Built in the Dubuque Works facility, the 555A was designed to bridge the gap between compact dozers and full-size loaders, offering versatility in construction, demolition, and site prep. With an operating weight of around 16,000 lbs and powered by a naturally aspirated 4-cylinder diesel engine producing approximately 70 horsepower, the 555A became a popular choice for contractors needing a rugged, all-purpose machine.
Sales of the 555A were strong throughout the early 1980s, with thousands of units deployed across North America. Its mechanical simplicity and parts interchangeability with other Deere models made it a favorite among independent operators and small fleets.
Common Mechanical Issues and Wear Points
Like many machines of its era, the 555A is prone to age-related wear and deferred maintenance. Buyers considering a used unit should be aware of several recurring issues:
Evaluating a Machine with Known Problems
If a 555A is offered for sale with disclosed issues, the decision to buy should be based on:
Inspection Checklist Before Purchase
Before committing to a used 555A, perform a detailed inspection:
Field Anecdote and Practical Insight
In Georgia, a small excavation firm purchased a 555A with a weak left-side drive. After diagnosing a worn brake band and replacing it with a salvaged part, the machine returned to full function. Over the next two years, it was used to clear brush, dig footings, and load debris—proving that even aging iron can earn its keep with the right care.
Upgrade and Retrofit Potential
While the 555A lacks modern electronics, it can be retrofitted with:
Conclusion
Buying a John Deere 555A with known problems is a calculated risk. For mechanically inclined buyers or those with access to affordable labor and parts, it can be a cost-effective way to acquire a capable crawler loader. However, thorough inspection and realistic budgeting are essential. With proper attention, even a tired 555A can be revived into a productive asset—proof that old iron still has value when matched with the right hands.
The John Deere 555A crawler loader was introduced in the late 1970s as part of Deere’s push to expand its mid-size track loader lineup. Built in the Dubuque Works facility, the 555A was designed to bridge the gap between compact dozers and full-size loaders, offering versatility in construction, demolition, and site prep. With an operating weight of around 16,000 lbs and powered by a naturally aspirated 4-cylinder diesel engine producing approximately 70 horsepower, the 555A became a popular choice for contractors needing a rugged, all-purpose machine.
Sales of the 555A were strong throughout the early 1980s, with thousands of units deployed across North America. Its mechanical simplicity and parts interchangeability with other Deere models made it a favorite among independent operators and small fleets.
Common Mechanical Issues and Wear Points
Like many machines of its era, the 555A is prone to age-related wear and deferred maintenance. Buyers considering a used unit should be aware of several recurring issues:
- Transmission hesitation: The 555A uses a hydrostatic transmission, which can suffer from sluggish response or loss of drive due to worn charge pumps, contaminated fluid, or internal leakage.
- Final drive noise: Gear whine or grinding may indicate bearing wear or gear tooth damage. Rebuilding final drives can be costly and labor-intensive.
- Undercarriage wear: Track chains, rollers, and sprockets often show significant wear after 3,000–4,000 hours. Replacing a full undercarriage can exceed $6,000.
- Hydraulic leaks: Cylinder seals and hose fittings degrade over time, especially if exposed to UV or chemical contamination.
- Cooling system fatigue: Radiators and water pumps may clog or corrode, leading to overheating under load.
Evaluating a Machine with Known Problems
If a 555A is offered for sale with disclosed issues, the decision to buy should be based on:
- Severity of problems: Minor leaks or worn seat cushions are manageable. Transmission failure or cracked final drives are red flags.
- Parts availability: Many components are still available through aftermarket suppliers or salvage yards. Deere’s legacy support remains strong.
- Repair cost vs. purchase price: If the machine is priced under $10,000 and repairs are estimated at $3,000–$5,000, it may still be a worthwhile investment.
- Intended use: For light-duty farm work or occasional grading, a partially worn 555A may suffice. For daily commercial use, reliability is paramount.
Inspection Checklist Before Purchase
Before committing to a used 555A, perform a detailed inspection:
- Check transmission response in forward and reverse
- Inspect track tension, roller wear, and sprocket teeth
- Look for hydraulic fluid leaks at cylinders and control valves
- Test lift and tilt functions under load
- Monitor engine temperature and exhaust smoke during operation
- Examine radiator fins and coolant condition
- Listen for unusual noises from final drives and swing frame
Field Anecdote and Practical Insight
In Georgia, a small excavation firm purchased a 555A with a weak left-side drive. After diagnosing a worn brake band and replacing it with a salvaged part, the machine returned to full function. Over the next two years, it was used to clear brush, dig footings, and load debris—proving that even aging iron can earn its keep with the right care.
Upgrade and Retrofit Potential
While the 555A lacks modern electronics, it can be retrofitted with:
- LED work lights for night operation
- Upgraded seat and canopy for operator comfort
- Auxiliary hydraulic lines for attachments
- Rebuilt track frames with reinforced welds
Conclusion
Buying a John Deere 555A with known problems is a calculated risk. For mechanically inclined buyers or those with access to affordable labor and parts, it can be a cost-effective way to acquire a capable crawler loader. However, thorough inspection and realistic budgeting are essential. With proper attention, even a tired 555A can be revived into a productive asset—proof that old iron still has value when matched with the right hands.
