Case CX210B Excavator: B-Series 21-Ton Production Excavator
The Case CX210B is a 21-ton class B-Series excavator, slotted between the original CX210 and the later CX210C in the Case full-size excavator lineup. The B-Series brought refined hydraulics, a more efficient Tier 3 diesel, and an upgraded operator station to the 21-ton platform.
Where the CX210B fits in the Case excavator line
The CX210B is a 21-ton class B-Series excavator. It sits between the original CX210 and the later CX210C in Case’s full-size excavator lineup. The B-Series generation refined the platform’s hydraulic controls, improved engine efficiency under Tier 3 emissions, and upgraded the operator station for longer-day production work.
Case CX210B Excavator - Quick Specs
- Class
- 21-Ton Excavator
- Generation
- B-Series
- Engine
- Tier 3 Diesel
- Drivetrain
- Hydrostatic Dual-Path
- Undercarriage
- Steel-Track
- Tail Swing
- Conventional
- Serial Plate
- Left frame rail near boom base; cab ID plate
- Predecessor
- Case CX210
- Successor
- Case CX210C
Engine, hydraulics, and drivetrain
The CX210B runs a Tier 3 diesel through a hydrostatic dual-path drivetrain into a steel-track undercarriage. The main hydraulic pump - typically a load-sensing piston pump - drives boom, dipper, bucket, swing, and propel circuits through electrohydraulic control valves. Conventional tail-swing geometry keeps the machine balanced for general earthmoving, utility, and site-prep work.
The B-Series hydraulic package is responsive at low engine speeds, which keeps fuel burn down and gives the operator finer modulation on fine grading and trench-bottom work. The dual-path drive lets the operator counter-rotate for tight-radius repositioning on confined sites.
Common service items on the CX210B
- Engine internals: Tier 3 diesel - pistons, rings, sleeves, head gaskets, common-rail injection components.
- 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 kits, 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 CX210B
| Category | Common Parts | Browse |
|---|---|---|
| Engine | Tier 3 diesel internals - pistons, rings, sleeves, gaskets | Browse Engine |
| 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, instrument cluster | Browse Electrical |
| Operator Station | Seat, joysticks, pedal linkage, gauges | Browse Operator Station |
Need a part for your Case CX210B Excavator?
Hydraulic pumps, swing motors, cylinder seal kits, and undercarriage are the highest-value items on a CX210B. Call our parts team with your serial number and we’ll match the right component to your machine.
Request a PartWhat to verify before ordering
- Machine serial number. Confirm the serial on the CX210B before ordering year-specific parts - the B-Series run had running changes.
- 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. Track shoe width and roller count can vary by build spec.
Why the CX210B still earns a paycheck
The Case CX210B is a 21-ton class production excavator suited to general site work, utility installation, residential and commercial earthmoving, and quarry or mining duty depending on configuration. It’s a balanced, well-supported platform that operators know how to run and parts people know how to support.
Maintenance priorities on a CX210B: clean fuel and tight water separation for the common-rail injection system, hydraulic oil condition and filtration, 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 excavator family.
