Case CX240D Excavator: 24-Ton D-Series Tier 4 Final Production Excavator
The Case CX240D is a 24-ton class D-Series excavator built around a Tier 4 Final diesel, a load-sensing hydraulic system, and a modern operator station. It sits between the earlier CX240B and the short-radius CX245D SR in Case’s full-size excavator lineup.
Where the CX240D fits in the Case excavator line
The CX240D is a 24-ton class D-Series excavator. It slots between the earlier B-Series CX240B and the short-radius CX245D SR in Case’s full-size excavator lineup. The D-Series brought the 24-ton platform to Tier 4 Final emissions with DPF and SCR aftertreatment, refined electrohydraulic controls, and a modernized cab.
Case CX240D Excavator - Quick Specs
- Class
- 24-Ton Excavator
- Generation
- D-Series
- Engine
- Tier 4 Final Diesel
- Aftertreatment
- DPF + SCR (DEF)
- Drivetrain
- Hydrostatic Dual-Path
- Undercarriage
- Steel Track
- Tail Swing
- Conventional
- Predecessor
- Case CX240B
- Larger Sibling
- Case CX245D SR
Engine, hydraulics, and drivetrain
The CX240D runs a Tier 4 Final diesel through a hydrostatic dual-path drivetrain into a steel-track undercarriage. The main hydraulic pump - a load-sensing piston pump - drives boom, dipper, bucket, swing, and propel circuits through electrohydraulic control valves. Tier 4 Final aftertreatment adds DPF and SCR (with DEF dosing) to the exhaust side.
The implement side of the machine is conventional D-Series: boom, dipper, and bucket cylinders feed off the main pump; the swing motor and reduction gear drive the upper frame through a swing bearing; the propel motors drive the steel-track undercarriage with planetary reductions and proven rollers, idlers, and sprockets.
Common service items on the CX240D
- Engine internals: Tier 4 Final diesel pistons, rings, sleeves, head gaskets, common-rail injection components.
- Aftertreatment: DPF service and regeneration management, DEF tank and dosing module, SCR catalyst, EGR cooler service.
- Fuel system: Common-rail injectors, lift pump, primary and secondary filters with tight water separation.
- 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 components, 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 CX240D
| Category | Common Parts | Browse |
|---|---|---|
| Engine | Tier 4 Final diesel internals, gaskets, rebuild components | 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) | 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 CX240D Excavator?
Tier 4 Final engine components, hydraulic pumps, swing motors, and undercarriage are the highest-value items on a CX240D. Call our parts team with your machine and engine serials.
Request a PartWhat to verify before ordering
- Machine serial number. Confirm the CX240D serial before ordering year-specific parts - the D-Series saw running revisions.
- Engine serial. Engine internal parts must match the engine serial number.
- Hydraulic cylinder bore. Cylinder seal-kit fit depends on bore - 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 sensors are calibrated to specific build configurations.
- Bucket and quick coupler. Quick-coupler interface varies - confirm before ordering attachment-side hardware.
Why the CX240D still earns a paycheck
The Case CX240D is a 24-ton class production excavator - general site work, utility installation, residential and commercial earthmoving, mining and quarry work depending on configuration. The D-Series platform combines a current-emissions Tier 4 Final engine with a load-sensing hydraulic system and modern electrohydraulic controls, making it a machine that fits cleanly into modern fleets without retrofit headaches.
Maintenance priorities on a CX240D: 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. Broken Tractor maintains parts coverage across the Case excavator family.
