Model Spotlight

Case 586H Rough Terrain Forklift: Tier 4 Final Current-Production RT Forklift

The Case 586H is the current-production heavy-duty rough terrain forklift in the 586 line - successor to the Tier 3 586G with Tier 4 Final engine technology, improved mast control, and a modernized operator station. It anchors the 5,000-6,000 lb capacity class for construction contractors and lumberyards needing a modern emissions-compliant RT forklift.

BT

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

Where the 586H fits in the Case forklift line

The 586H is Case’s current 586-class production rough terrain forklift - successor to the Tier 3 586G. It carries Tier 4 Final engine technology, an improved mast control system, and a refined operator station. It sits at the top of the 586-class line, just below the larger 588 series in the Case RT forklift family.

Like the rest of the Case RT forklift line, the 586H shares significant drivetrain DNA with the Case loader-backhoe platform - parts like the 175978A1 needle bearing, K395075 thrust washer, and A168790 parking brake disc cross-fit between forklifts, backhoes, and trenchers in the Case construction line.

What changed from the 586G to the 586H

• Engine. EPA Tier 4 Final diesel replacing the 586G’s Tier 3 engine. Common-rail injection, electronic engine control, and aftertreatment integration.
• Aftertreatment. DPF service intervals and DEF/SCR dosing where fitted - service requirements not present on the Tier 3 586G.
• Mast control system. Updated for improved precision and modulation over the G-series.
• Operator station. Refined ergonomics, updated gauges and controls, improved visibility.
• Fuel efficiency. Improved over the 586G predecessor.

Engine, hydraulics, and drivetrain

The 586H runs a Tier 4 Final diesel through a refined power-shuttle transmission. Tier 4 Final emissions equipment (DPF, DEF/SCR where fitted) is part of every service decision - clean fuel and tight water separation matter more than on the Tier 3 586G predecessor. The updated mast control system delivers improved precision over the G-series, and the power shuttle remains the defining drivetrain feature on Case RT forklifts.

The 586H is available in 2WD and 4WD configurations. Front and rear axles share the planetary final-drive architecture used across the Case loader-backhoe and forklift lines, which is why parts like the 175978A1 needle bearing and K395075 thrust washer cross-fit between machines.

Common service items on the 586H

• Engine internals: Tier 4 Final diesel - pistons, rings, sleeves, head gaskets. Common-rail injection.
• Tier 4 Final aftertreatment: DPF service intervals; DEF dosing and SCR catalyst where fitted; EGR cooler service.
• Fuel system: Common-rail injectors, lift pump, primary and secondary filters with tight water-separator standards.
• Cooling system: Radiator, water pump, thermostat, fan, hoses, belts.
• Power shuttle / transmission: Power shuttle clutch packs, forward/reverse modulation, transmission filters and oil.
• Steering hydraulics: Steering motor, steering cylinder seal kit, control valve, hoses.
• Mast hydraulics: Lift cylinder seal kits, tilt cylinder seal kits, chain tensioner, 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 - high-volume service item. Service brakes and brake hydraulics.
• 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 and cross-fit components for the Case 586H

What to verify before ordering

• Serial number. Confirm the serial on the Case 586H forklift 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. Drivetrain parts differ between 2WD and 4WD configurations.
• Tier 4 Final emissions revision. DPF and DEF/SCR components saw revisions during production - confirm by serial.
• Power-shuttle generation. Power-shuttle transmissions saw revisions - confirm by serial before ordering clutch-pack components.

Why the 586H still earns a paycheck

The 586H is the current-production heavy-duty Case RT forklift in the 5,000-6,000 lb capacity class. Modern emissions compliance, refined operator ergonomics, improved fuel efficiency over the 586G predecessor - for construction contractors and lumberyards that need a modern Tier 4 Final forklift, the 586H is the on-lot answer.

Maintenance priorities on a 586H: clean fuel and tight water separation for common-rail injection, DPF regen behavior tracking, DEF quality on SCR-equipped units, power-shuttle service, mast hydraulic service, and brake service (A168790 cross-fit). Broken Tractor maintains parts coverage for the 586H alongside the broader Case RT forklift and loader-backhoe families.