Model Spotlight

Case 586G Rough Terrain Forklift: Tier 3 Turbocharged Heavy-Duty RT Forklift

The Case 586G is a heavy-duty rough terrain forklift built for high-capacity lifting in demanding construction, lumber, and heavy agricultural environments. Powered by a Tier 3 turbocharged diesel with an optional 4WD drivetrain, the 586G is the G-series successor to the 586E and predecessor to the Tier 4 Final 586H.

BT

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

Where the 586G fits in the Case forklift line

The 586G is the G-series Tier 3 successor to the 586E in the Case 586-class rough terrain forklift lineage. It sits between the 586E and the later Tier 4 Final 586H. The 586G shares the 362347A1 mast lift cylinder seal kit, 175978A1 needle bearing, and K395075 thrust washer cross-fit with its 585G and 588G G-series siblings, giving it a broad parts ecosystem alongside the Case loader-backhoe family.

Engine, hydraulics, and drivetrain

The 586G runs a Tier 3 turbocharged diesel through a power-shuttle transmission. Both 2WD and 4WD drivetrain configurations were offered, and driveline parts differ between them. Mast hydraulics share the 362347A1 lift cylinder seal kit with the 585G and 588G - a high-volume G-series direct-fit service item. Needle bearings (175978A1, 10-pack) and thrust washers (K395075) cross-fit with the 580L / 580M / 580SL Case loader-backhoes, which keeps drivetrain wear-item availability strong.

The power-shuttle transmission is a defining feature on Case RT forklifts - it gives the operator quick forward/reverse directional changes without clutching, essential for material handling cycles. Steering hydraulics drive an articulated or steered-axle system depending on configuration, with serviceable cylinder seal kits and a dedicated steering control valve.

Common service items on the 586G

• Engine internals: Tier 3 turbocharged diesel - pistons, rings, sleeves, head gaskets, turbocharger service.
• Tier 3 aftertreatment: Cooled EGR service; pre-DPF / pre-DEF era. Track EGR cooler condition.
• Fuel system: 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: Steering motor, steering cylinder seal kits, control valve, hoses.
• Mast hydraulics: Lift cylinder seal kits, tilt cylinder seal kits, side-shift cylinder service, control valves. 362347A1 mast lift cylinder seal kit fits 585G, 586G, and 588G.
• Mast components: Carriage rollers, lift chains, fork carriage bushings, side-shift attachment service.
• Drivetrain: Front and rear axles, planetary final drives, driveshaft, differential service. 175978A1 needle bearing 10-pack and K395075 thrust washer cross-fit with 585G / 588G + loader-backhoe.
• Brakes: A168790 parking brake disc cross-fits Case forklift / loader-backhoe / trencher applications. 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 we carry for the Case 586G

What to verify before ordering

• Serial number. Confirm the serial on the Case 586G 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, or cylinder parts.
• Two-wheel vs. four-wheel drive. The 586G was available in 2WD and 4WD configurations - drivetrain parts differ.
• Power-shuttle generation. Power-shuttle transmissions saw revisions during the G-series run - confirm by serial before ordering clutch-pack components.

Why the 586G still earns a paycheck

The 586G is a high-capacity heavy-duty G-series RT forklift. Tier 3 turbocharged power supports demanding lift cycles, and the optional 4WD adds off-road and soft-ground capability for construction site material handling, lumberyard work, and heavy agricultural or industrial duty.

Maintenance priorities on a 586G: clean fuel and quality filtration (the turbo demands clean intake AND oil supply), Tier 3 EGR service when soot loading shows, power-shuttle clutch-pack service, mast hydraulic seal replacement (362347A1 direct fit), driveline bearing service (175978A1 / K395075 cross-fit), and brake service (A168790 cross-fit). Broken Tractor maintains parts coverage across the G-series 585G / 586G / 588G family.