Model Spotlight

Case TR320 Compact Track Loader: 2009–2018 Radial-Lift CTL

The Case TR320 is part of Case’s alpha-series TR (radial-lift) compact track loader range — Tier 4 Final compact diesel, hydrostatic dual-path drive on a tracked undercarriage, and the alpha-series cab. Radial-lift geometry on a CTL chassis gives the flotation of tracks with the ground-level reach pattern of a radial-lift loader. Early builds (2009–2012) ran a Case 432T/M3 3.2L Iveco Tier 3 diesel; 2013–2018 builds moved to the FPT F5H FL413 3.4L HPCR Tier 4 Final engine.

BT

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

Where the TR320 fits in the Case skid steer / CTL line

The TR320 sits in Case’s alpha-series TR (radial-lift) compact track loader range between the Case TR310B and the Case TR340. Tracked undercarriage, radial-lift loader geometry, and Tier 4 Final aftertreatment on later builds. The TR designation marks radial-lift CTLs; vertical-lift TV-series machines share the same alpha-series chassis but with a different boom geometry.

Engine, hydraulics, and drivetrain

The TR320 runs a compact diesel through a hydrostatic dual-path drivetrain into a tracked undercarriage — closed-loop hydrostatic pumps drive final-drive motors at each track. Loader hydraulics use a load-sensing piston pump with electrohydraulic control valves. The CTL undercarriage gives the TR320 flotation on soft material that a wheeled skid steer can’t match — but track wear monitoring becomes the largest single recurring cost on the machine.

On Tier 4 Final builds (2013 onward) the FPT F5H FL413 adds a full aftertreatment stack — DPF, SCR catalyst with DEF dosing, and EGR cooling — that requires its own service intervals. Common-rail high-pressure fuel injection demands tight water separation and clean fuel.

Common service items on the TR320

• Engine internals: Tier 4 Final compact diesel pistons, rings, sleeves, bearings, gaskets. Common-rail high-pressure injection on Tier 4 builds.
• Tier 4 aftertreatment: DPF service intervals, DEF tank and dosing module, SCR catalyst, EGR cooler service.
• 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. CTL undercarriage adds track chains, sprockets, idlers, rollers.
• Bucket coupler hardware: 47396814K bucket pin kit cross-fits L216–L230, C232–C238, SR160–SR250, SV185–SV300, TV380, TR270–TR340 — high-volume coupler service kit.
• 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 TR320

What to verify before ordering

• Build year and engine generation. 2009–2012 ran the Tier 3 Case 432T/M3 Iveco; 2013–2018 ran the FPT F5H FL413 Tier 4 Final. Engine, fuel system, aftertreatment, and ECU parts differ between the two.
• Serial number. Confirm the serial on the Case TR320 before ordering year-specific parts.
• Engine serial. Internal engine parts must match the engine serial number.
• Aftertreatment configuration. Tier 4 Final DPF and SCR component part numbers vary across the build run.
• Undercarriage configuration. CTL track chain, sprocket, idler, and roller part numbers saw revisions — confirm by serial.
• 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 TR320 still earns a paycheck

The Case TR320 is an alpha-series CTL for operations that need the flotation and ground-pressure profile of tracks with the ground-level reach pattern of radial-lift geometry. Landscape work, sensitive turf, soft material, and any operation where wheels would sink — the TR320 keeps working.

Maintenance priorities on a TR320: clean fuel and tight water separation (common-rail injectors don’t tolerate contamination), DPF regen behavior on Tier 4 Final builds, hydrostatic charge pressure, and undercarriage wear monitoring. CTL undercarriage life is the single largest recurring cost on this machine — service-life tracking matters. Broken Tractor maintains parts coverage for the TR320 alongside the broader Case alpha-series skid steer and CTL family.