Long 510 Utility Tractor - Parts, Specs & Serial Numbers

Description:

The Long 510 Utility Tractor is a robust and versatile 2WD tractor built by Long Manufacturing in partnership with UTB/Universal of Romania. Produced during the late 1970s and early 1980s, the Long 510 was designed for heavier-duty fieldwork while maintaining Long’s reputation for reliability and ease of service. With a powerful diesel engine and higher lift capacity, it remains a favorite among vintage tractor enthusiasts and working farms alike.

Engine:

• Make: UTB (Universal)

• Type: 4-cylinder, liquid-cooled diesel

• Displacement: 203.5 cu in (3.33 L)

• Power Output: Approx. 52–55 HP PTO

• Fuel Capacity: 18.5 gallons (70 liters)

Transmission:

• Type: 8-speed sliding gear manual

• Gears: 8 forward, 2 reverse

• Clutch: Dual dry plate, mechanical

Hydraulics:

• System Type: Open center

• Pump Flow Rate: 5.6 gpm

• Hydraulic Pressure: Up to 2,200 psi

• 3-Point Hitch: Category I & II compatible

• Lift Capacity at Ends: Approx. 2,600 lbs

Dimensions & Weight:

• Wheelbase: 76.3 inches

• Length: 136 inches

• Width: 70 inches

• Height (to steering wheel): 60 inches

• Operating Weight: 4,200–4,400 lbs

PTO & Performance:

• PTO Type: Live or independent (varies by model)

• PTO Speed: 540 RPM

• Drawbar Power: ~45 HP

Maintenance Specs:

• Engine Oil Capacity: 8.5 quarts

• Cooling System: 12 quarts

• Air Filter: Dry type with safety element

• Common Maintenance Items: Clutch assemblies, fuel filters, hydraulic pump kits, PTO seals

Known Issues & Fixes:

• Clutch Drag or Slipping: Caused by worn discs — Clutch kits available here

• Hydraulic System Weakness: Often due to pump wear or leaking piston seals — Shop Long 510 Hydraulic Parts

• Hard Starting: Usually related to glow plugs or injector wear — see fuel injection components

Serial Number Location:

Locate the serial number on a stamped plate on the left-hand side of the transmission housing, just behind the engine block.

Pro Tip: Use diesel treatment in colder weather to prevent fuel gelling and ensure easier starts in winter conditions.

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