Case CX240 Hydraulic Excavator: Foundational 24-Ton Original CX
The Case CX240 is the original 24-ton class hydraulic excavator in Case's CX full-size lineup. It set the platform that later evolved into the CX240B and the C-series machines, pairing a load-sensing piston main pump with a hydrostatic dual-path drive and steel-track undercarriage for general site work, utility, and earthmoving production.
Where the CX240 fits in the Case excavator line
The CX240 is a 24-ton class hydraulic excavator and the foundational Original generation of the 240 platform. It sits between the smaller short-radius CX235C SR and the later CX240B in Case's full-size excavator family, with the CX210 as a closely related family sibling.
Mechanically the CX240 carries the architecture that defined the CX line: a load-sensing piston main pump feeding electrohydraulic control valves to boom, dipper, bucket, swing, and propel circuits, with a conventional tail-swing house riding on a steel-track undercarriage. The serial plate is stamped on the frame near the boom base on the left side, and is repeated on the cab data plate.
Case CX240 Excavator - Quick Specs
- Class
- 24-Ton Excavator
- Generation
- Original CX
- Engine
- Tier 2 Diesel
- Drivetrain
- Hydrostatic Dual-Path
- Undercarriage
- Steel Track
- Tail Swing
- Conventional
- Smaller Sibling
- CX235C SR
- Larger Sibling
- CX240B
Engine, hydraulics, and drivetrain
The CX240 is powered by a Tier 2 diesel driving a load-sensing piston-type main hydraulic pump. The pump feeds the boom, dipper, bucket, swing, and propel circuits through electrohydraulic control valves. The dual-path hydrostatic propel circuit drives planetary final drives at each track, with a steel-track undercarriage carrying the house.
The swing system uses a dedicated swing motor and reduction gear riding on a swing bearing, with a swing brake for park hold. Cylinders on the boom, dipper, and bucket are conventional double-acting hydraulics with replaceable seal kits.
Common service items on the CX240
- Engine internals: Pistons, rings, sleeves, head gaskets, bearings - standard diesel rebuild components.
- Fuel system: 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 and belts.
- Hydraulic system: Boom, dipper, bucket, and swing cylinder seal kits; main pump rebuild parts; 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.
- 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 CX240
| Category | Common Parts | Browse |
|---|---|---|
| Engine | Pistons, rings, sleeves, gaskets, bearings | Browse Engine |
| Fuel System | Injectors, lift pump, filters, water separator | 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 | KHN16820 Wiper Blade |
| 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 CX240 Excavator?
Hydraulic pumps, swing components, undercarriage wear parts, and cab glass are the highest-turn items on the CX240. Call our parts team with your serial number.
Request a PartWhat to verify before ordering
- Serial number. Confirm the machine serial on the frame plate before ordering year-specific parts.
- Engine serial. Engine internal parts must match the engine serial number, not just the machine serial.
- Hydraulic cylinder bore. Cylinder seal kit fit depends on bore dimension - measure before ordering.
- Main pump variant. Load-sensing piston pump configurations changed during the production run - confirm by serial.
- Engine ECU calibration. Injectors and ECU sensors are calibrated to specific build years.
- Bucket and quick coupler. Quick-coupler interface varies - confirm before ordering attachment-side hardware.
- Undercarriage configuration. Track shoe width and roller count can vary - verify against existing components.
Why the CX240 still earns a paycheck
The Case CX240 is a 24-ton class production excavator built for general site work, utility installation, residential and commercial earthmoving, and mining or quarry work depending on configuration. It is the platform that established the CX 24-ton class and remains in service in fleets that prize the original mechanical hydraulic architecture over the later electronically managed builds.
Maintenance priorities on a CX240: clean fuel and tight water separation for the injection system, hydraulic oil condition and filtration, swing-bearing lubrication on the documented intervals, steel-track tension and undercarriage wear monitoring, and pin and bushing service at every boom and dipper joint. Broken Tractor maintains parts coverage across the Case CX excavator family.
