Bobcat

The Bobcat S510 is a wheeled skid steer loader manufactured between 2013 and 2019 as part of Bobcat‘s 500 series, with overall performance and cycle times improved by approximately 16% compared to previous S150 and S160 models. The machine has an operating weight of 2,686–2,816 kg (5,922–6,208 lb) depending on configuration, and a rated operating capacity (50% of tipping load) of 810–851 kg (approximately 1,650–1,876 lb). The tipping load reaches 1,619–1,619 kg (3,560 lb), providing a substantial safety margin for lifting operations. Maximum travel speed is 17.3 km/h (7.6 mph) on the standard single-speed transmission, and an optional two-speed transmission increases top speed to 11 mph (17.7 km/h).

The S510 is powered by a Kubota diesel engine—specifically the Kubota V2203-M-DI-E2B-BC-3 (for earlier units) or V2403-MDI-E3B for later Tier 4 models, delivering 49–55 hp (36.4–41 kW) depending on market and year. Displacement is 2.196 liters with four cylinders, and maximum torque reaches 150 Nm at 1,425 rpm. Notably, the S510 meets Tier 4 emission regulations without a diesel particulate filter (DPF), which eliminates DPF regeneration downtime and reduces long-term maintenance costs.

In terms of dimensions, transport length is 3.38 m (133 in), overall width is 1.73 m (68 in with bucket), and height to bucket hinge pin reaches 2.91 m (114.5 in). Maximum dumping height is 2.2 meters, reach at maximum height is 17 inches, and the standard Bob-Tach quick attachment system is included on every machine. The standard tire size is 10.00-16.5 10 PR, and the wheelbase measures 42.6 inches. The S510 features a radius lift path, which provides excellent reach and visibility for applications such as dumping over walls, backfilling, or loading flatbed trucks.

Fuel economy is a practical consideration for any used equipment purchase. According to industry data, the Bobcat S510 consumes approximately 1.8–2.5 gallons (6.8–9.5 liters) of diesel per hour under normal operating conditions. One equipment data source estimates hourly fuel cost at approximately $0.50 per hour, though this figure appears to be based on specific low-fuel-rate calculations and may not reflect actual diesel prices. More realistic estimates from the broader skid steer market suggest fuel consumption typically ranges from 1.5 to 3.5 gallons per hour depending on workload, with Bobcat models generally using between 1.8 and 3.4 gallons per hour. At a diesel price of approximately $3.50–$4.50 per gallon, this translates to an hourly fuel cost of $6.30–$15.30.

The S510 has a fuel tank capacity of 93.7 liters (24.8 gallons). At average consumption, a full tank provides approximately 9–13 hours of continuous operation, making it well-suited for a full workday with a lunchtime refuel.

Monthly maintenance costs for the S510 are estimated at approximately $239, based on industry data that factors in routine fluid changes, filter replacements, and lubrication. Additional costs include estimated monthly fuel expenditure of $500 for typical usage patterns, bringing total monthly operating costs to approximately $739 plus labor and parts for any repairs beyond routine maintenance.

For used buyers, it is important to note that fuel efficiency can be significantly impacted by maintenance condition. Insufficient airflow into the engine due to clogged air filters can increase fuel consumption by at least 10%. Additionally, the optional two-speed transmission (available on some S510 units) allows for higher travel speeds when moving between job sites, but this can increase fuel consumption during high-speed operation compared to working at standard speeds.

The Bobcat S510 is generally considered a reliable machine, with many units logging thousands of hours of service across construction, landscaping, and agricultural applications. However, used buyers should be aware of several documented issues that have been reported by owners and mechanics.

Common Problem 1 – Hydraulic Overheating: A 2015 S510 owner reported on the Skidsteer Forum that the machine would run fine all day with a grapple attachment, but after 10–15 minutes of operating a brush cutter, it would overheat and throw hydraulic overheating codes. Forum experts identified the likely cause as debris accumulation between the oil cooler and radiator, which can restrict airflow and cause overheating. Bobcat recommends cleaning this area every 50 operating hours, but many owners are unaware of this requirement. The solution involves lifting the oil cooler and thoroughly cleaning both sides of the cooling stack—a task that can be time-consuming but is essential for preventing overheating.

Common Problem 2 – Right-Hand Drive Issues: A 2016 S510 owner with approximately 1,000 hours experienced intermittent drive problems on the right-hand side, particularly when moving under load or when additional force was required. Troubleshooting revealed that the charge filter was plugged with debris, and the plastic bottom of the main hydraulic filter had broken off and was sitting in the filter housing. This debris contamination affected hydraulic charge pressure and caused uneven drive performance. The lesson for used buyers is to inspect both the charge filter and main hydraulic filter for debris, and to verify that filters are genuine Bobcat components that fit correctly.

Common Problem 3 – Hydraulic Fluid Leaking into Chain Case: Another owner reported hydraulic fluid leaking into the chain case, accompanied by slow lift performance, and was unable to locate the source of the leak. This issue typically points to failed axle seals or worn hydraulic motor components, and repair costs can be substantial if the chain case requires disassembly.

Reliability Strengths: On the positive side, the S510‘s Tier 4 engine does not require a DPF, eliminating regeneration downtime and reducing long-term maintenance costs compared to competing models with DPF systems. The Kubota engine platform is widely recognized for durability and parts availability, and the Bob-Tach system is simple and reliable when properly maintained.

Used Buyer Inspection Checklist:

• Clean the radiator and oil cooler fins (from both directions) to check for debris buildup

• Verify all hydraulic filters are intact (not broken or deformed) and free of debris

• Test drive the machine under load, paying particular attention to any hesitation or uneven performance on either drive side

• Listen for unusual noises from the chain case that could indicate internal component wear

• Check for signs of hydraulic fluid contamination in the chain case

• Request service records to verify that cooling system cleaning was performed regularly

The Bobcat S510 maintains strong resale value in the used equipment market due to the Bobcat brand‘s reputation for reliability and the machine‘s versatile application range. According to market data from 2025, the S510 consistently achieves high average selling prices compared to many competitors, with low-hour, well-maintained units commanding premium prices.

Current Market Price Ranges (2025–2026):

A 2024 Bobcat S510 sold on eBay for $38,500, highlighting the strong demand for nearly-new examples of this model. At the lower end, a 2014 S510 sold at auction for $16,750. A 594-hour S510 with EROPS, auxiliary hydraulics, and a hydraulic quick coupler was listed at auction in 2025, representing a well-optioned low-hour unit.

Factors Affecting Resale Value:

• Hours: The most significant pricing factor. Units under 500 hours command near-new pricing, while those above 3,000 hours typically see accelerated depreciation

• Options: S510 units equipped with optional features such as two-speed travel, selectable joystick controls (SJC), air conditioning, cab enclosure, and high-flow hydraulics sell for $3,000–$5,000 more than base models

• Maintenance History: A documented service history (including regular cooling system cleaning and filter replacements) can add 10–15% to the selling price compared to an unknown-history machine

• Attachments Included: Bucket type (GP vs. heavy-duty), pallet forks, and other attachments significantly increase package value

• Geographic Location: Pricing varies by region, with machines in high-demand construction areas (Texas, Florida, California) typically selling at premiums compared to rural agricultural markets

The Bobcat S510 holds its value better than many competing skid steer models because the brand has a loyal following among contractors who prioritize reliability and parts availability. For used buyers, this means that while the initial purchase price may be higher than a lesser-known brand, the resale value when it comes time to sell will likely be stronger, reducing the total cost of ownership.

The Bobcat S510 is compatible with a wide range of attachments through the standard Bob-Tach mounting system, which is included with every loader. The Bob-Tach system allows operators to change attachments quickly—typically in under one minute—without leaving the cab (manual Bob-Tach) or, with the optional Power Bob-Tach upgrade, without even leaving the seat.

Attachment Categories Compatible with S510:

Important Attachment Compatibility Notes:

Hydraulic Flow Requirements: The S510 has an auxiliary standard flow of 17.1 gallons per minute (64.7 L/min) at a system relief pressure of 3,550 psi. This flow rate is sufficient for most common attachments including buckets, forks, brooms, and standard-flow augers. However, high-flow attachments (such as large forestry mulchers or high-production planers) require the optional high-flow hydraulic package, which was not standard on all S510 units. Before purchasing a used S510 for high-flow applications, verify whether the specific machine is equipped with the high-flow option.

Bob-Tach System: The standard Bob-Tach system is compatible with all universal skid steer attachment plates (the industry standard), meaning attachments from other major manufacturers (Cat, John Deere, Case, New Holland, etc.) will fit the S510 provided they use the universal quick-attach pattern. The Bob-Tach upper kit (part number 7302297) is specifically listed as compatible with the S510, along with S530, S550, S570, S590, and numerous other Bobcat models. The Power Bob-Tach system, which allows for hydraulic attachment changes from the cab, was an optional upgrade on the S510 and is highly desirable for operators who switch attachments frequently.

Popular Attachments for S510 Applications:

• Landscaping: Angle brooms for site cleanup, augers for planting, pallet forks for material movement, dumping hoppers for debris collection

• Construction: GP buckets for excavation, hydraulic breakers for concrete demolition, trenchers for utility installation

• Agriculture: Bale spears for hay handling, pallet forks for feed and supply movement, buckets for manure and silage handling

• Snow Removal: Snow blades, V-plows, and snow blowers (verify hydraulic flow compatibility for blowers)