Used CAT D5K Bulldozer for Sale – Low Price, High Performance

The CAT D5K is a compact crawler bulldozer available in multiple undercarriage configurations. The XL (Extra Long) configuration has an operating weight of 9,408 kg, while the LGP (Low Ground Pressure) configuration weighs 9,683 kg and the SLGP (Super Low Ground Pressure) configuration reaches 9,800 kg. It is powered by a Cat C4.4 ACERT™ four-cylinder diesel engine with 4.4L displacement, delivering 71.6 kW (96 hp) of net power and 74.5 kW (100 hp) of gross power. Standard blade capacity is 2.09 m³ for the XL configuration and 2.34 m³ for LGP configurations. The machine features a hydrostatic transmission with infinitely variable speeds, achieving maximum forward speed of 9.0 km/h and reverse speed of 10.0 km/h. Fuel tank capacity is 195 L and hydraulic system holds 59.5 L. Ground pressure is 39.1 kPa for XL and 31.1 kPa for LGP, making the LGP version ideal for soft or marshy terrain. SystemOne undercarriage features 40 track shoes per side with 510 mm standard shoe width for XL or 660 mm for LGP.

Used CAT D5K pricing varies significantly based on age, operating hours, condition, and configuration. For units in good working condition with moderate hours (2,000–4,000 hours), prices typically range from US $39,000 to $45,000 FOB China. A 2024 model with approximately 440 operating hours is priced around US $44,600. A 2019 D5K2 LGP model with undercarriage and attachments is listed at auction with an opening bid range of $1 to $25,000, with final sale prices typically reaching $25,000–$45,000 depending on condition. A used D5K with 2,033 operating hours (2021 model) in China is priced around US $40,000. For newer units (2020–2022 models with under 1,500 hours), prices can reach US $45,000–$55,000. Older units (2015–2017 models) with higher hours (5,000+) generally fall in the US $25,000–$35,000 range. Multiple factors influence final pricing: machines with documented service history, undercarriage with 70%+ remaining life, and SystemOne undercarriage upgrades command premium valuations. Import taxes, shipping costs (FOB vs. CIF), and local market demand also play significant roles. Prospective buyers should verify operating hours, inspect undercarriage wear (track rollers, sprockets, track shoes), and request operation tests before purchase.

The CAT D5K requires systematic maintenance to ensure long service life. Daily (every 10 hours) inspections include checking fuel, engine oil, and coolant levels, inspecting hydraulic hoses for leaks, and monitoring dashboard parameters. Every 50 service hours or weekly, maintenance tasks include lubricating the equalizer bar center pin and lift cylinder yoke bearings, inspecting track pins, and replacing the cab filter. Every 500 hours, operators should change engine oil and filter (engine oil capacity is 11.0 L with filter), replace the fuel filter, and inspect the hydraulic system. Every 1,000 hours, hydraulic oil and filter change is required (hydraulic system capacity 59.5 L), along with final drive oil changes (each side 10.0 L) and cooling system flush (cooling system capacity 22.4 L). Well-maintained units routinely exceed 8,000–10,000 operating hours with major components intact.

Common issues reported for the D5K include:

1. DPF (Diesel Particulate Filter) maintenance – For Tier 4 models equipped with DPF, typical service interval is around 5,000 hours when the filter requires removal, cleaning, or replacement. Software in the machine system must be reset, which usually requires factory software.

2. Engine starting issues – May be caused by low fuel level, clogged fuel filters, low battery charge, or starter motor failure. Repair methods include adding fuel, replacing clogged fuel filters, charging or replacing the battery, and inspecting the starter motor and ignition system.

3. Engine black smoke – Typically indicates clogged air filters, poor fuel quality, faulty injector atomization, or engine overload. Solutions include cleaning or replacing the air filter, using quality fuel, cleaning or replacing injectors, and controlling operating load.

4. Blade slow or unable to lift – Usually caused by damaged hydraulic cylinder seals, hydraulic pump failure, low hydraulic oil level, or control valve malfunction. Repair involves checking and replacing cylinder seals, inspecting the hydraulic pump, adding oil to the proper level, and cleaning or repairing the control valve.

5. Hydraulic cylinder drift – Prolonged blade drop with engine running normally is typically caused by insufficient spring preload on the main valve‘s one-way valve, resolved by adjusting the preload.

The D5K features a fully hydrostatic transmission (HYSTAT) with two drive pumps and two track motors, providing infinitely variable speed control and exceptional maneuverability. This system eliminates traditional clutch and brake steering, allowing true counter-rotation of tracks for spot turns in confined spaces. Maximum travel speed is 9.0 km/h forward and 10.0 km/h reverse. The relief valve setting for the drive system is 47,650 kPa (6,911 psi) for maximum tractive effort.

Fuel efficiency: The integrated engine and transmission control systems work together to optimize fuel consumption. Compared to conventional torque converter drive systems, the D5K‘s hydrostatic drivetrain improves fuel efficiency by up to 16%, delivers more power to the ground, and increases digging force by up to 13% for greater dozing output. With a 195 L fuel tank, typical fuel consumption under moderate load ranges from 10–14 L/h, enabling 14–19 hours of continuous operation per refill depending on terrain and load conditions. The C4.4 ACERT engine meets Tier 3 emission standards and is widely accepted in most international markets without DEF requirements.

The choice between XL and LGP configurations depends on your primary working conditions:

XL Configuration: Best suited for general earthmoving, site preparation, and grading on firmer ground. The narrower track gauge (1,600 mm) improves transportability and reduces overall machine width. Blade width of 2,782 mm is ideal for standard dozing and backfilling tasks.

LGP Configuration: Designed for soft underfoot conditions including wetlands, pipeline construction on unstable soil, and agricultural applications. The wider 660 mm shoes reduce ground pressure to just 31.1 kPa, preventing machine sinkage and ensuring traction on muddy terrain. The larger blade (3,220 mm wide, 2.34 m³ capacity) improves production rates per pass. For extremely soft conditions, optional 770 mm shoes reduce ground pressure further to 27.1 kPa.

Expert recommendation: For most contractors working on mixed ground conditions, the XL configuration offers the best balance of performance and transportability. For pipeline, reclamation, or agricultural work on consistently soft ground, the LGP configuration is the superior choice despite higher transport costs.