Case CX75C SR Midi Excavator: 2013-Present 7.5-Ton Short-Radius Midi
The Case CX75C SR is a 7.5-ton C-Series short-radius midi excavator built from 2013 to the present. Short-radius tail-swing geometry keeps the counterweight inside the track width, making it ideal for urban utility, residential, and curbside work where conventional-swing midi excavators don’t fit.
Where the CX75C SR fits in the Case excavator line
The CX75C SR sits in Case’s midi excavator range (7-10 ton class), between the mini line and the full-size CX130 and up. Short Radius (SR) tail swing keeps the counterweight inside the track width, ideal for urban and curbside utility work where conventional-swing machines do not fit. It slots between the Case Mini and the larger Case Midi excavators.
Case CX75C SR Midi Excavator - Quick Specs
- Class
- 7.5-Ton Short Radius Midi Excavator
- Generation
- C-Series
- Production
- 2013 - Present
- Engine
- Tier 4 Final Diesel
- Drivetrain
- Hydrostatic Dual-Path
- Undercarriage
- Steel Track
- Tail Swing
- Short Radius
- Smaller Sibling
- Case CX60D Mini Excavator
- Larger Sibling
- Case CX80C Midi Excavator
Engine, hydraulics, and drivetrain
The CX75C SR runs a Tier 4 Final diesel through a hydrostatic dual-path drivetrain into a steel-track undercarriage. The main hydraulic pump drives boom, dipper, bucket, swing, and propel circuits through electrohydraulic control valves. Short Radius tail-swing geometry reduces the rear counterweight overhang for confined-space work, while steel tracks support the heavier midi-class weights and handle abrasive-material applications.
The Tier 4 Final engine package includes common-rail fuel injection, DPF (diesel particulate filter), DEF dosing with an SCR catalyst, and EGR cooling. The aftertreatment stack is reliable when fed clean fuel and quality DEF but requires regular attention to filters, sensors, and regeneration behavior.
Common service items on the CX75C SR
- 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, 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 CX75C SR
| Category | Common Parts | Browse |
|---|---|---|
| Engine | Tier 4 Final diesel internals, pistons, rings, sleeves, gaskets | Browse Engine |
| Aftertreatment | DPF, DEF dosing, 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, instrument cluster | Browse Electrical |
| Operator Station | Seat, joysticks, pedal linkage, gauges | Browse Operator Station |
Need a part for your Case CX75C SR Midi Excavator?
Common-rail fuel system components, aftertreatment parts, and hydraulic rebuilds are the highest-value items on a CX75C SR. Call our parts team with your serial number.
Request a PartWhat to verify before ordering
- Serial number. Confirm the serial on the CX75C 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 CX75C SR still earns a paycheck
The Case CX75C SR is a midi-class excavator for jobs that demand more reach, depth, and bucket capacity than a mini can deliver, but don’t need the road footprint of a full-size 13+ ton machine. Utility contractors, urban construction crews, mid-size site work, and residential bulk excavation all lean on this class of machine. The SR geometry adds the confined-space versatility that conventional-swing midis do not have.
Maintenance priorities on a CX75C SR: clean fuel and tight water separation for common-rail injection, DPF regen behavior tracking, hydraulic system condition, steel-track tension and wear monitoring, swing-bearing lubrication, and pin and bushing service. Broken Tractor maintains parts coverage across the Case excavator family.
