Case CX240B Excavator: 24-Ton B-Series Production Excavator
The Case CX240B is a 24-ton class B-Series excavator, sitting between the CX240 and the later CX240D in Case's full-size excavator lineup. The B-Series brought refined hydraulics and an upgraded cab to the 24-ton platform - a production-grade machine for general site work, utility, and quarry duty.
Where the CX240B fits in the Case excavator line
The CX240B is a 24-ton class B-Series excavator. It sits between the earlier CX240 and the later CX240D in Case's full-size excavator lineup, sharing structural DNA with the broader CX-B family. The B-Series refined main pump control, electrohydraulic valve response, and operator-station ergonomics over the original CX-Series.
Case CX240B Excavator - Quick Specs
- Class
- 24-Ton Excavator
- Generation
- B-Series
- Engine
- Tier 3 Diesel
- Drivetrain
- Hydrostatic Dual-Path
- Undercarriage
- Steel-Track
- Tail Swing
- Conventional
- Predecessor
- Case CX240
- Successor
- Case CX240D
Engine, hydraulics, and drivetrain
The CX240B runs a Tier 3 diesel through a hydrostatic dual-path drivetrain into a steel-track undercarriage. The main hydraulic pump - commonly a load-sensing piston pump - drives boom, dipper, bucket, swing, and propel circuits through electrohydraulic control valves. Steering is by independent track control; propel is via planetary final drives at each sprocket.
The swing system uses a dedicated swing motor with reduction gear and a large-diameter swing bearing between the upper frame and the carbody. Cab is sealed, climate-controlled, and uses pilot-operated joysticks linked to electrohydraulic valve control.
Common service items on the CX240B
- Engine internals: Pistons, rings, sleeves, head gaskets, bearings - common-rail diesel platform.
- 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 CX240B
| Category | Common Parts | Browse |
|---|---|---|
| Engine | Pistons, rings, sleeves, head gaskets, bearings | Browse Engine |
| Fuel System | Common-rail injectors, lift pump, filters | Browse Fuel System |
| 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, instrument cluster | Browse Electrical |
| Operator Station | Seat, joysticks, pedal linkage, gauges | Browse Operator Station |
Need a part for your Case CX240B Excavator?
Hydraulic pumps, swing motors, common-rail injectors, and cab glass are the highest-value items on a CX240B. Call our parts team with your serial number.
Request a PartWhat to verify before ordering
- Serial number. Confirm the machine serial on the CX240B 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.
- 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.
- Undercarriage configuration. Standard and long-track variants existed; confirm shoe width and link count before ordering chain.
Why the CX240B still earns a paycheck
The Case CX240B is a 24-ton class production excavator covering general site work, utility installation, residential and commercial earthmoving, and mining and quarry work depending on configuration. The B-Series hydraulic and cab refinements made the platform competitive with the contemporary mid-2000s field of 24-ton excavators, and the machines are still working today.
Maintenance priorities on a CX240B: clean fuel and tight water separation for common-rail injection, hydraulic oil condition, swing-bearing lubrication, steel-track tension and undercarriage wear monitoring, and pin and bushing service at the boom and dipper joints. Broken Tractor maintains parts coverage across the Case CX excavator family.
