The Bobcat 843 Skid Steer Loader is a robust, heavy-duty machine built for demanding applications in construction, demolition, and industrial work. Featuring a powerful diesel engine and hydrostatic transmission, the 843 offers exceptional breakout force, lift capacity, and durability. Its spacious cab and straightforward design make it a favorite for operators needing a reliable loader with strong hydraulic performance and simplified service access.
Specifications & Features:
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Engine: Isuzu 4JB1, 4-cylinder liquid-cooled diesel
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Engine Power: 54 hp @ 2,300 RPM
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Hydraulic Pressure: 2,300 psi
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Pump Flow: 14.5 GPM
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Rated Operating Capacity: 1,700 lbs
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Operating Weight: 6,290 lbs
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Lift Type: Radial lift
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Transmission: Hydrostatic drive, dual-lever controls
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Travel Speed: 6.6 mph
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Tires: 10x16.5 standard
Common Maintenance Needs:
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Hydraulic cylinder seal kits – for both lift and tilt cylinders – Shop Bobcat 843 Hydraulic Kits
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Isuzu 4JB1 engine parts – air, fuel, oil filters, glow plugs, and belts – Find Isuzu Engine Parts
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Hydraulic hoses and quick couplers – inspect for cracking or leakage
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Cooling system – clean radiator and check thermostat and water pump
Common Issues & Quick Fixes:
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Lift arms or tilt drifting: Worn cylinder seals or faulty hydraulic valve
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Hard starts in cold: Replace glow plugs or check starter solenoid
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Overheating: Clean radiator and verify fan operation and belt condition
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Hydrostatic drive hesitation: Check fluid level and condition, replace filters
Pro Tips:
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Always change hydraulic fluid and filters every 250 hours to prevent wear
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Use anti-gel diesel additive in cold climates to avoid fuel system blockages
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Grease all pins, pivots, and lift points every 10 hours for smooth operation
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Replace quick couplers if hydraulic attachments feel weak or sluggish
Serial Number Location:
The serial number plate is located on the inside of the loader frame near the engine compartment or under the left side control lever in the cab.
