Model Spotlight

Case 584D Rough Terrain Forklift: D-Series 5,000 lb Power-Shuttle Forklift

The Case 584D is a field-proven D-series rough terrain forklift built for everyday lifting on construction sites, farms, and lumberyards. Rated at 5,000 lb lift capacity with a refined power-shuttle transmission, mechanical-injection Case diesel, and the D90752 steering motor valve architecture shared across the C/D-series RT forklift family.

BT

Broken Tractor Editorial Team• Updated May 2026• 8 min read

Where the 584D fits in the Case forklift line

The 584D is the D-series successor to the 584C - refined power-shuttle transmission, updated cab and operator station, and the same D90752 steering motor valve service architecture that runs across the C/D-series RT forklift family. It sits between the 584C and the 584E in the Case rough terrain forklift lineage.

The 584D is the working 5,000 lb class machine in the lineup - light enough to handle residential and farm operations, capable enough for construction lumber, drywall, and pallet handling on uneven ground.

Engine, hydraulics, and drivetrain

The 584D runs a Case mechanical-injection diesel through a refined D-series power-shuttle transmission. The power shuttle is the defining drivetrain feature on Case RT forklifts - it gives the operator instant forward/reverse modulation at the lift mast without clutching, which matters for stacking and shuttling pallets all day.

Mast hydraulics carry the same gear-pump / mechanical-valve architecture as the C-series, and the D90752 steering motor valve continues as the cross-fit service item from 584C through 586D. Lift and tilt cylinders use standard rod-and-seal architecture serviceable with off-the-shelf seal kits.

Common service items on the 584D

• Engine internals: Case mechanical-injection diesel - pistons, rings, sleeves, head gaskets, bearings.
• Fuel system: Mechanical injection pump, injectors, lift pump, primary and secondary filters.
• Cooling system: Radiator, water pump, thermostat, fan, hoses, belts.
• Power shuttle / transmission: Power shuttle clutch packs, forward/reverse modulation valves, transmission filters and oil.
• Steering hydraulics: C/D-series direct-fit D90752 steering motor valve - the canonical service part for 584C/D, 585C/D, 586C/D rough terrain forklifts.
• Mast hydraulics: Lift cylinder seal kits, tilt cylinder seal kits, chain tensioners, control valves, hoses.
• Mast components: Mast carriage rollers, lift chain inspection and replacement, fork carriage bushings, side-shift attachment service.
• Drivetrain: Front and rear axles, planetary final drives, driveshaft, axle differential service. 175978A1 needle bearing 10-pack and K395075 thrust washer fit 585G / 586G / 588G plus loader-backhoe.
• Brakes: A168790 parking brake disc cross-fits Case forklift / loader-backhoe / trencher applications - a high-volume service item.
• Cab / operator station: Seat, joystick / lever controls, gauges, key switch, ROPS canopy or enclosed cab. 377594A5 cab air filter fits Case loader tractor / backhoe / forklift cabs.
• Electrical: Starter, alternator, wiring harness, gauges, switches.

Parts we carry for the Case 584D

What to verify before ordering

• Serial number. Confirm the serial on the Case 584D before ordering year-specific parts.
• Engine serial. Internal engine parts must match the engine serial number.
• Mast configuration. Lift height, carriage width, fork length, and side-shift options vary - confirm mast spec before ordering carriage / chain / cylinder parts.
• Two-wheel vs. four-wheel drive. Some Case RT forklift models are available in 2WD and 4WD configurations - drivetrain parts differ.
• Steering motor lines. D90752 steering valve service must follow port connection instructions - incorrect line routing causes immediate steering damage.
• Power-shuttle generation. Power-shuttle transmissions saw revisions through the D-series - confirm by serial before ordering clutch-pack components.

Why the 584D still earns a paycheck

The 584D is the working D-series 5,000 lb rough terrain forklift - light enough to handle residential and farm operations, capable enough for construction lumber, drywall, and pallet handling. Its mechanical-injection diesel, gear-pump hydraulics, and power-shuttle transmission are all serviceable with parts that remain available through the aftermarket, which is why these machines stay in service decades after production.

Maintenance priorities on a 584D are clean fuel, D-series power-shuttle oil quality and clutch-pack condition, mast chain and lift cylinder service, steering motor service (D90752 line-routing must follow installation instructions), and brake service using the A168790 cross-fit disc. Broken Tractor stocks the high-volume cross-fit items that this platform shares with Case loader-backhoes and the G-series forklifts.