Model Spotlight

Case WX145 Wheeled Excavator: C-Series 14.5-Ton Road-Mobile Excavator

The Case WX145 is a 14.5-ton C-Series wheeled excavator built for road-mobile utility work, municipal applications, and any operation that needs excavator capability without dedicated transport. It sits between the WX140E and the WX155E SR in the Case wheeled excavator family.

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

Where the WX145 fits in the Case excavator line

The WX145 sits in Case’s WX wheeled excavator range — wheeled-chassis excavators built for road-mobile utility work, municipal applications, and any operation that needs excavator capability without dedicated transport. It slots between the WX140E Wheeled Excavator and the WX155E SR Wheeled Excavator.

Case WX145 Wheeled Excavator - Quick Specs

Class: 14.5-Ton Wheeled Excavator
Generation: C-Series
Production: C-Series Production
Engine: Tier 3 / Tier 4 Diesel
Drivetrain: Wheeled Chassis, Hydrostatic Drive
Serial Plate: Right side of cab below front windshield
Smaller Sibling: WX140E Wheeled Excavator
Larger Sibling: WX155E SR Wheeled Excavator

Locating your serial number On the Case WX145 the serial number plate is located on the right side of the cab below the front windshield, or inside near the operator’s seat. Confirm the serial before ordering — WX wheeled excavator emissions and ECU calibrations evolved across generations.

Engine, hydraulics, and drivetrain

The WX145 runs a Tier 3 / Tier 4 diesel through a hydrostatic drivetrain to a wheeled chassis — tires, axles, and final drives in place of a tracked undercarriage. Stabilizer outriggers and/or a dozer-blade stabilizer keep the chassis planted during digging cycles. Boom, dipper, bucket, and swing functions match a comparable-class tracked CX excavator, so the hydraulic component family is shared with the tracked side of the Case excavator catalog.

The wheeled chassis is what defines the machine. Tires and wheel bearings, axle and final-drive lubrication, and outrigger/blade-stabilizer cylinder service all become part of the maintenance routine in addition to the standard excavator service items.

Common service items on the WX145

Engine internals: Tier 4 Final diesel - pistons, rings, sleeves, head gaskets. Common-rail injection.
Tier 4 Final aftertreatment: DPF service intervals and regeneration behavior; DEF tank and dosing module; SCR catalyst; 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, charge-air cooler (on turbo builds), hoses, belts.
Hydraulic system: Boom / dipper / bucket / swing cylinder seal kits, main pump rebuild, electrohydraulic control valves, hoses.
Boom and dipper: Pin and bushing service at every joint, bucket pins, thumb attachment hardware, quick coupler service.
Wheeled chassis: Tires, wheel bearings, axle and final drive service, suspension if equipped.
Swing system: Swing motor and reduction gear service, swing bearing inspection, swing brake.
Electrical / ECU: Engine ECU, instrument cluster, sensors, harness, telematics module on equipped units.
Cab glass and wiper: KHN16820 24-inch wiper blade, KHN3046 front lower glass, and KHN2632 front upper glass cross-fit across Case and Link-Belt excavators.
Operator station: Seat, joystick controls, pedal linkage, instrument panel, cab HVAC.

Tier 4 Final aftertreatment - service implications The WX145’s DPF and SCR systems are reliable when fed clean fuel and quality DEF, but they require attention. DEF tank must stay topped up, the DPF will request periodic high-temperature regenerations, and NOx sensors fail occasionally and trigger derate conditions if not replaced. Factor aftertreatment service into the maintenance budget on any Tier 4 Final WX145.

Parts we carry for the Case WX145

Category	Common Parts	Browse
Engine	Tier 4 Final diesel internals	Browse Engine
Aftertreatment	DPF, DEF, SCR, EGR components	Browse Aftertreatment
Fuel System	Common-rail injectors, lift pump, filters	Browse Fuel
Cooling	Radiator, water pump, charge-air cooler, hoses	Browse Cooling
Hydraulics	Main pump, swing motor, cylinders, seal kits, valves	Browse Hydraulics
Boom / Dipper	Pins, bushings, bucket and quick-coupler hardware	Browse Boom / Dipper
Wheeled Chassis	Tires, wheel bearings, axles, final drives	Browse Chassis
Swing	Swing motor, reduction gear, swing bearing	Browse Swing
Cab Glass / Wiper	KHN16820 wiper, KHN3046 lower glass, KHN2632 upper glass (Case/Link-Belt cross-fit)	KHN16820 Wiper Blade
Electrical / ECU	ECU, sensors, harness	Browse Electrical
Operator Station	Seat, joysticks, pedal linkage, gauges	Browse Operator Station

Need a part for your Case WX145 Wheeled Excavator?

Common-rail injectors, hydraulic main pumps, swing components, and Case/Link-Belt cross-fit cab glass are the highest-value items on a WX145. Call our parts team with your serial number.

Request a Part

What to verify before ordering

Serial number. Confirm the serial on the WX145 before ordering year-specific parts.
Engine serial. Engine internal parts must match the engine serial number.
Hydraulic cylinder bore. Cylinder seal kit fit depends on bore dimension - measure before ordering.
Tier 4 emissions revision. DPF and DEF/SCR components saw revisions during production - confirm by serial.
Engine ECU calibration. Common-rail injectors and ECU sensors are calibrated to specific build years.
Bucket and quick coupler. Quick-coupler interface varies - confirm before ordering attachment-side hardware.

Why the WX145 still earns a paycheck

The Case WX145 is a wheeled excavator for road-mobile utility, municipal, and infrastructure work — it drives between job sites under its own power, eliminating the dedicated transport requirements that tracked excavators carry. Common in European municipal fleets and increasingly in North American utility applications.

Maintenance priorities on a WX145: clean fuel, hydraulic oil condition, tire pressure and wheel-bearing service, axle and final-drive lubrication, outrigger / blade-stabilizer cylinder service, swing-bearing lubrication, and pin / bushing service. Broken Tractor maintains parts coverage across the Case wheeled excavator family.