Model Spotlight

Case 440 Skid Steer Loader: 2004–2010 400-Series Tier 3 Hydrostatic

The Case 440 is part of Case’s 400-series skid steer / compact track loader family - a Tier 3 compact diesel, hydrostatic dual-path drive, and the operator interface that bridged the XT-series and the modern alpha (SR/SV/TR/TV) lineup. Built from 2004 through 2010, it’s the mid-2000s mainstay still earning a paycheck on jobsites and rental fleets.

BT

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

Where the 440 fits in the Case skid steer / CTL line

The 440 sits in the Case 400-series skid steer / CTL range between the Case 435 and the Case 440CT compact track loader sibling. It carries the Tier 3 compact diesel architecture, electronic engine controls, and the cab and instrumentation package that defined Case’s mid-2000s skid steer / CTL line before the alpha (SR/SV/TR/TV) rename took over.

Engine, hydraulics, and drivetrain

The 440 runs a Tier 3 compact diesel through a hydrostatic dual-path drivetrain. Loader hydraulics use a piston pump feeding electrohydraulic control valves. The wet-disc park brake is integrated with the hydrostatic deceleration logic, so brake-side wear shows up first as soft-stop or slow-engagement behavior on the joystick.

Common-rail high-pressure fuel injection demands clean fuel and tight water separation. Charge pressure on the hydrostatic system is the leading indicator of pump or charge-pump wear - if drive response gets sluggish under load, that’s where the diagnostic starts.

Common service items on the 440

• Engine internals: Tier 3 compact diesel pistons, rings, sleeves, bearings, gaskets.
• Aftertreatment: EGR cooler service on Tier 3 builds.
• Fuel system: Common-rail injectors, lift pump, very tight water-separator filtration.
• Cooling system: Radiator, water pump, thermostat, fan, charge-air cooler, hoses, belts.
• Hydraulics: Loader lift and bucket tilt cylinder seal kits (86570919 / 86570931 / 86570922 cross-fit on NH/Case alpha-series), piston-pump rebuilds, electrohydraulic control valves.
• Drivetrain: Hydrostatic dual-path pumps and drive motors, charge pump, filters.
• Hardware: 191048A2 axle stud & nut cross-fits broadly across the Case skid steer line.
• Brakes / control: Park brake, control linkage, 48139268 control shock absorber on Case/NH alpha-series control valves.
• Electrical / ECU: Engine ECU, machine controller, instrument cluster, sensors, wiring harness, telematics module.
• Cab / operator station: Cab HVAC, seat, gauges, joystick controls, cab glass, 47405956 windshield wiper blade on cab-equipped units.

Parts we carry for the Case 440

What to verify before ordering

• Aftertreatment generation. Tier 3 configuration varies by build year - confirm EGR layout before ordering.
• Serial number. Confirm the serial on the Case 440 before ordering year-specific parts.
• Engine serial. Internal engine parts must match the engine serial number.
• Hydraulic cylinder bore. Cylinder seal kit fit depends on bore dimension - measure before ordering.
• Cab vs. ROPS canopy. Operator station equipment varied between configurations.

Why the 440 still earns a paycheck

The Case 440 is the mid-2000s Case skid steer loader that bridged the XT-series and the current alpha lineup. Tier 3 emissions, modern electronics, and cab ergonomics that put the operator in a better seat than the XT predecessor - all in a platform that’s simpler to service than the Tier 4 Final machines that followed.

Maintenance priorities on a 440: clean fuel and tight water separation for common-rail injection, hydrostatic charge pressure monitoring, and drive-chain (or chaincase) oil level checks. Broken Tractor maintains parts coverage across the 400-series and the broader Case skid steer / CTL family.