Model Spotlight

Case CX180B Excavator: 2005–2011 18-Ton B-Series Mid-Size Excavator

The Case CX180B is the 18-ton B-Series mid-size excavator produced from 2005 through 2011. It sits in the middle of Case’s full-size excavator lineup as a general-purpose production machine for site work, utility installation, and commercial earthmoving.

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Broken Tractor Editorial Team• Updated May 2026• 8 min read

Where the CX180B fits in the Case excavator line

The CX180B is an 18-ton class B-Series excavator that occupies the mid-size segment of Case’s full-size excavator lineup. It sits between the smaller CX160B and the larger CX210B in the same B-generation family, and it’s the direct predecessor to the later D-series CX180D. The B-series represents the mid-2000s Case excavator platform built on Tier 3 emissions standards.

The platform uses a conventional tail-swing upper, a steel-track undercarriage, and a hydrostatic dual-path propel drive shared across the B-series. It’s a workhorse-class machine widely deployed in general site work, utility installation, residential and commercial earthmoving, and lighter mining and quarry support work.

B-Series design and what defines it

• Tier 3 diesel. The CX180B runs a Tier 3 emissions-compliant diesel - simpler aftertreatment than the later D and E generations, with no DPF or SCR to service.
• Load-sensing hydraulics. A load-sensing piston pump feeds boom, dipper, bucket, swing, and propel through electrohydraulic control valves for smoother modulation and improved fuel efficiency under partial loads.
• Conventional tail swing. Standard counterweight overhang - not a reduced or zero tail-swing variant.
• Steel-track undercarriage. Sealed-and-lubricated chain, three-roller-pattern frames, Case-pattern sprockets and idlers.
• Cab and controls. ROPS/FOPS-rated pressurized cab, low-effort joystick pilot controls, mechanical-feel pedal propel and dozer-blade (where equipped) options.

Engine, hydraulics, and drivetrain

The CX180B runs a Tier 3 diesel powering a load-sensing main hydraulic pump that drives boom, dipper, bucket, swing, and propel circuits through electrohydraulic control valves. The hydrostatic dual-path drive sends power to planetary final drives at each track, with independent track control for spot turns and gradual steering.

The implement hydraulic circuit handles standard digging, plus thumb and quick-coupler attachment work on equipped configurations. Swing is driven by a dedicated swing motor and reduction gear riding on a sealed swing bearing. Fuel system is common-rail with electronic injectors and tight water-separator standards on the primary filter.

Common service items on the CX180B

• Engine internals: Tier 3 diesel pistons, rings, sleeves, head gaskets, bearings.
• Fuel system: Common-rail injectors, lift pump, primary and secondary filters with tight water separation standards.
• Cooling system: Radiator, water pump, thermostat, fan, charge-air cooler, hoses, belts.
• Hydraulics: Main pump rebuild kits, boom/dipper/bucket/swing cylinder seal kits, electrohydraulic control valve service, hoses.
• Boom and dipper: Pin and bushing service at every joint, bucket pins, thumb hardware, quick-coupler service.
• Undercarriage: Steel track chains, rollers, idlers, drive sprockets, recoil springs, track shoes.
• Swing system: Swing motor, reduction gear, swing bearing, swing brake.
• Electrical / ECU: Engine ECU, instrument cluster, sensors, harness, telematics module on equipped units.
• Cab glass and wipers: 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, joysticks, pedal linkage, instrument panel, cab HVAC.

Parts we carry for the Case CX180B

What to verify before ordering

• Serial number. Confirm the machine serial before ordering year-specific parts — the CX180B had running changes through its 2005–2011 production.
• 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.
• Main pump variant. Load-sensing pump part numbers can vary across the production run.
• 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 configurations affect roller/idler counts and track length.

Why the CX180B still earns a paycheck

The Case CX180B is an 18-ton class production excavator widely used for general site work, utility installation, residential and commercial earthmoving, and mining and quarry support depending on configuration. The B-series platform was simpler than the later D and E generations — no DPF, no SCR, no DEF — which makes it attractive to owner-operators who prefer mechanical familiarity and lower aftertreatment maintenance burden.

Maintenance priorities on a CX180B: clean fuel and tight water separation for the common-rail injection, hydraulic oil condition and filtration, swing-bearing lubrication, steel-track tension and undercarriage wear monitoring, and pin/bushing service across the boom and dipper. Broken Tractor maintains parts coverage across the Case excavator family.