Case 521D Wheel Loader - Parts, Specs & Common Issues

Case

SKU:: Case 521D Wheel Loader - Parts, Specs & Common Issues
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Part # Case 521D Wheel Loader - Parts, Specs & Common Issues

Description:

Serial Number Location:

For Case 521D Wheel Loaders (manufactured from 2005 to 2008), the serial number plate is typically located on the left side of the machine frame near the articulation joint or inside the cab near the left-side control console. Always verify your serial number before ordering model-specific parts to account for production variations.

Key Specifications

Feature	Specification
Years Manufactured	2005 – 2008
Engine Model	Case 6.7L Family IV Tier 3 (6-cylinder turbo diesel)
Net Horsepower	128 HP (95 kW) @ 2,100 rpm
Max Torque	428 lb-ft (580 Nm) @ 1,400 rpm
Displacement	409 cu in (6.7 L)
Transmission Type	Powershift with 4 forward and 3 reverse gears
Hydraulic Flow Rate	36 gal/min (136 L/min)
Hydraulic Pressure	3,046 psi (210 bar)
Operating Weight	23,327 lbs (10,586 kg)
Bucket Capacity	2.1 – 2.6 cu yd (1.6 – 2.0 m³)
Breakout Force	22,850 lbs (10,365 kg)
Travel Speed (Max)	23.6 mph (38 km/h)
Dimensions (L×W×H)	24.0' × 8.3' × 10.7' (7.31 × 2.53 × 3.26 m)

Performance & Design Highlights

Tier 3 Turbocharged Diesel Power

The Case 6.7L turbocharged diesel engine provides strong, reliable power with lower emissions, excellent fuel economy, and improved torque for heavy lifting and material handling.

Powershift Transmission

The 4-speed powershift transmission delivers smooth, responsive gear changes, improving traction and control across diverse job site conditions.

High-Performance Hydraulic System

With increased hydraulic flow and pressure over previous models, the 521D ensures fast, responsive loader arm and bucket operation for greater productivity.

Exceptional Breakout Force

With nearly 23,000 lbs of breakout force, the 521D excels at tough tasks like stockpiling, loading trucks, and material excavation.

Operator Comfort & Visibility

The spacious, redesigned cab features improved ergonomics, low noise levels, excellent sightlines, and optional air conditioning for all-day operator comfort.

Maintenance & Common Issues

Routine Maintenance

Component	Service Interval
Engine Oil & Filter	Replace every 250 hours
Hydraulic Fluid & Filter	Service every 1,000 hours
Air Filter	Inspect every 100 hours; replace as needed
Fuel Filter	Replace every 500 hours
Transmission Fluid	Replace every 1,000 hours
Cooling System	Clean and inspect every 1,000 hours

Common Issues & Fixes

Issue	Quick Fix
Hydraulic Leaks	Inspect hoses, seals, and fittings regularly; replace as needed
Transmission Slippage	Check fluid levels and clutch packs; adjust or service as required
Loader Arm Wear	Replace worn pins and bushings to maintain stability
Bucket Cylinder Leaks	Replace cylinder seals and inspect rods for wear
Engine Overheating	Clean radiators and coolers; inspect coolant system and thermostat

Out of Stock

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Shipping & Return Policy

Do you need your part quickly? You're in luck! We have warehouses all over the country to ensure a quick and easy delivery time. Most of our parts ship from our warehouses the same day you place your order. And many times, orders are delivered in Two to Three days.

Our in house parts are manufactured following strict quality standards in our warehouse in Ohio. Parts such as hydraulic cylinders, pins, bushings, sheet metal, track adjusters, booms and dipper sticks are all ready to ship same day that they are purchased! With less time to wait for your shipment, you will be able to get back to work as quickly as possible.

Did you accidentally purchase the incorrect part? We offer returns and exchanges here at Broken Tractor. To proceed with a return, please call us toll free, and we will provide you with return authorization and a step by step return process for your convenience. We are more than happy to help you exchange your part for the correct one! Give us a call at 1-800-909-7060 and we would be pleased to help you.

Case 521D Wheel Loader - Parts, Specs & Common Issues

Case

Description:

Serial Number Location:

Key Specifications