Case CX145C SR Excavator: 2012-2017 14.5-Ton Short-Radius C-Series Excavator
The Case CX145C SR is a 14.5-ton class C-Series short-radius excavator built from 2012 through 2017. C-generation cab, Tier 4 Interim emissions, and short-radius tail-swing geometry sized for urban utility work, roadside jobs, and confined-space earthmoving.
Where the CX145C SR fits in the Case excavator line
The CX145C SR is a 14.5-ton class C-Series short-radius excavator. It sits between the CX140E and the CX145D SR in Case’s full-size excavator lineup. The SR (short-radius) geometry keeps the counterweight inside the track width, which makes the machine well suited to confined-space utility work, roadside trenching, and tight urban jobsites where a conventional tail-swing excavator would foul traffic or adjacent structures.
Case CX145C SR Excavator - Quick Specs
- Class
- 14.5-Ton Short-Radius Excavator
- Generation
- C-Series
- Production
- 2012-2017
- Engine
- Tier 4 Interim Diesel
- Drivetrain
- Hydrostatic Dual-Path
- Undercarriage
- Steel-Track
- Tail Swing
- Short Radius
- Smaller Sibling
- CX140E
- Larger Sibling
- CX145D SR
Engine, hydraulics, and drivetrain
The CX145C SR runs a Tier 4 Interim diesel through a hydrostatic dual-path drivetrain into a steel-track undercarriage. The main hydraulic pump (a load-sensing piston pump on most builds) drives boom, dipper, bucket, swing, and propel functions through electrohydraulic control valves. Short-radius tail-swing geometry reduces the rear counterweight overhang for confined-space work - at the cost of slightly lower swing stability when lifting at full reach, so operators need to respect the load chart in SR machines.
The C-generation cab brought a refined ROPS/FOPS-rated operator station, improved HVAC, a color monitor display, and pilot joystick controls. Tier 4 Interim aftertreatment runs DPF with periodic regeneration; later production sub-revisions added DEF/SCR components depending on configuration and market.
Common service items on the CX145C SR
- Engine internals: Tier 4 Interim diesel - pistons, rings, sleeves, head gaskets. Common-rail injection.
- Aftertreatment: DPF service intervals and regeneration behavior, DEF tank and dosing module, SCR catalyst on equipped builds, 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, hoses, belts.
- Hydraulic system: Boom, dipper, bucket, and 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.
- Undercarriage: Steel track inspection and replacement, rollers, idlers, drive sprockets, recoil springs.
- 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.
Parts we carry for the Case CX145C SR
| Category | Common Parts | Browse |
|---|---|---|
| Engine | Tier 4 Interim diesel internals, pistons, rings, sleeves, gaskets | 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 |
| Undercarriage | Steel tracks, rollers, idlers, sprockets, recoil springs | Browse Undercarriage |
| 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) | Browse Cab Glass |
| Electrical / ECU | ECU, sensors, harness | Browse Electrical |
| Operator Station | Seat, joysticks, pedal linkage, gauges | Browse Operator Station |
Need a part for your Case CX145C SR Excavator?
Common-rail injectors, hydraulic pumps, swing components, and undercarriage are the highest-value items on a CX145C SR. Call our parts team with your serial number.
Request a PartWhat to verify before ordering
- Serial number. Confirm the serial on the CX145C SR 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 CX145C SR still earns a paycheck
The Case CX145C SR is a 14.5-ton class production excavator for general site work, utility installation, residential and commercial earthmoving, and mining or quarry work depending on configuration. SR (short-radius) tail-swing geometry adds urban, curbside, and confined-space capability that a standard tail-swing 14-ton excavator simply cannot match. For utility contractors and municipal crews working in traffic or alongside structures, the SR geometry is the reason these machines stay in production fleets.
Maintenance priorities on a CX145C SR: clean fuel and tight water separation for common-rail injection, DPF regen behavior tracking, hydraulic oil condition, swing-bearing lubrication, steel-track tension and undercarriage wear monitoring, and pin and bushing service at every boom joint. Broken Tractor maintains parts coverage across the Case excavator family.
