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Understanding the Bobcat 863 and Its Engine Behavior
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Overview of the Bobcat 863
The Bobcat 863 is a mid-sized skid-steer loader that gained popularity in the late 1990s and early 2000s for its balance of power, maneuverability, and hydraulic performance. Manufactured by Bobcat Company, a division of Doosan Group since 2007, the 863 was part of a broader push to modernize compact equipment with improved operator comfort and engine reliability. Bobcat, originally founded in 1947 in North Dakota, has sold millions of loaders globally, with the 800-series contributing significantly to its market share in North America.
The 863 features a vertical lift path, making it suitable for loading trucks and handling heavy pallets. It typically comes equipped with a Deutz 1011F diesel engine, delivering around 73 horsepower. The rated operating capacity is approximately 1,900 pounds, with a tipping load near 3,800 pounds. Its hydraulic flow supports a wide range of attachments, from augers to trenchers.
Common Issues with High-Hour Units
Machines with over 6,000 hours, like the one discussed, often show signs of wear. One notable symptom is black smoke during startup, which can indicate incomplete combustion. This is typically caused by:
  • Dirty or worn fuel injectors: Over time, injectors may clog or fail to atomize fuel properly, leading to rich mixtures and soot.
  • Low compression: Worn piston rings or cylinder walls reduce combustion efficiency.
  • Faulty glow plugs: In cold weather, poor pre-heating can delay ignition.
  • Turbocharger wear: If equipped, a failing turbo can affect air-fuel ratios.
While black smoke at startup is not uncommon for older diesel engines, persistent smoke or smoke under load may signal deeper issues. A quick compression test and injector inspection can clarify the cause.
Evaluating the $8,000 Asking Price
For a Bobcat 863 with 6,500 hours and visible engine symptoms, $8,000 is on the high side unless the unit includes recent maintenance, upgraded tires, or valuable attachments. Comparable listings in 2025 show prices ranging from $5,500 to $9,000 depending on condition and location. Buyers should consider:
  • Hydraulic performance: Check for slow response or whining sounds.
  • Drive motor condition: Listen for grinding or slipping.
  • Frame integrity: Inspect for cracks near lift arms or pivot points.
  • Electrical system: Ensure gauges and warning lights function properly.
A pre-purchase inspection by a certified technician can prevent costly surprises. If injectors need replacement, expect parts and labor to cost around $600–$1,200 depending on region.
Deutz Engine Characteristics
The Deutz 1011F engine is air-cooled, which eliminates radiator-related failures but requires clean airflow and regular cooling fin maintenance. Known for durability, these engines can exceed 10,000 hours with proper care. However, parts availability may vary by region, and some owners report difficulty sourcing OEM components.
In 2019, a construction firm in Ohio extended the life of their 863 fleet by retrofitting newer injectors and upgrading air filters, reducing startup smoke and improving fuel efficiency by 12%.
Tips for Prospective Buyers
  • Start the machine cold: Observe smoke, idle stability, and throttle response.
  • Check hydraulic fluid color: Milky or dark fluid may indicate contamination.
  • Inspect tire wear: Uneven wear suggests alignment or suspension issues.
  • Review maintenance records: Look for regular oil changes and filter replacements.
If the machine passes basic checks and the smoke clears after warm-up, it may still offer years of service. However, budget for potential injector or compression-related repairs.
Conclusion
The Bobcat 863 remains a workhorse in the compact loader category, especially for small contractors and farm operations. While high-hour units require scrutiny, many continue to perform reliably with routine maintenance. Understanding engine behavior, especially startup smoke, is key to making an informed purchase. With proper evaluation and negotiation, even a 6,500-hour machine can be a valuable asset.
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