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Title: High-Efficiency 6686077 Radiator for Bobcat S150 S160 S175 S185 S205 – Engine Water Radiator Cooling System
Proper engine cooling is critical for skid steer loaders operating in demanding construction, landscaping, and agricultural environments. For Bobcat S150, S160, S175, S185, and S205 models, the 6686077 radiator is the direct replacement water radiator that maintains optimal engine temperature. A clogged, leaking, or damaged radiator can lead to overheating, reduced performance, and costly engine damage. This high-quality replacement cooling system component restores thermal efficiency and keeps your Bobcat running reliably through the toughest jobs.
Engineered for Bobcat S-Series Skid Steer Loaders
The Bobcat S150, S160, S175, S185, and S205 are compact track loaders and skid steer loaders widely used in construction, agriculture, and material handling. These models typically feature diesel engines such as the Kubota V2203 or similar, which require consistent coolant flow to maintain operating temperatures between 80°C and 95°C. The 6686077 radiator is a cross-flow or down-flow design (depending on the specific model) featuring a high-density core, aluminum or copper-brass construction, and plastic or metal tanks. It is engineered to match original dimensions, mounting points, and inlet/outlet hose configurations.
Compatibility: Detailed Bobcat Model List
This water radiator is a direct replacement for the following Bobcat skid steer and compact track loader models:
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Bobcat S150 (with Kubota V2203 or similar engine)
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Bobcat S160
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Bobcat S175
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Bobcat S185
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Bobcat S205
Additional Compatible Models (verify fitment):
While the 6686077 is primarily designed for S150-S205 series, it may also be compatible with:
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Bobcat S130 (check year and engine variant)
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Bobcat S220 (some production years)
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Bobcat S250 (early models with same chassis)
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Bobcat S300 (select configurations)
Engine Families:
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Kubota V2203, V2203-M, V2203-T, V2403
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Bobcat-branded diesel engines (based on Kubota platforms)
Why Choose This 6686077 Radiator?
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OEM Equivalent Construction: Manufactured with high-density cooling fins, durable tubes, and precision-welded tanks to withstand vibration and thermal cycling.
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Direct Bolt-On Fit: Matches factory mounting brackets, fan shroud attachment points, and hose connections (typically 1.5″ or 1.75″ inlet/outlet).
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Enhanced Cooling Efficiency: Core design maximizes surface area for heat dissipation, preventing overheating during heavy lifting, digging, or continuous operation.
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Corrosion Resistance: Treated with anti-corrosion coating or manufactured from high-grade aluminum/brass to resist electrolysis and coolant degradation.
Signs Your Radiator Needs Replacement
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Engine overheating, especially under load or in hot ambient temperatures
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Visible coolant leaks from the radiator core, tanks, or seams
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Coolant loss without external leaks (internal crack or pinhole)
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Rust, corrosion, or scale buildup visible through the fill port
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Reduced heater output (if equipped) – indicates poor coolant flow
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External debris or fin damage restricting airflow
Installation Recommendations
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Allow engine to cool completely before draining coolant.
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Remove the fan shroud (if equipped) and any obstructions.
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Disconnect upper and lower radiator hoses – note orientation.
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Unbolt the radiator from its mounts and lift it out carefully.
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Clean the mounting area and inspect hoses, clamps, and thermostat.
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Install the new 6686077 radiator with new hoses and clamps for best results.
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Refill with approved coolant (typically ethylene glycol-based, 50/50 mix).
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Run the engine and check for leaks; bleed air from the system.
Conclusion
The 6686077 radiator for Bobcat S150, S160, S175, S185, and S205 is a critical cooling system component that prevents engine overheating and extends equipment life. Whether you are maintaining a fleet of skid steers or repairing a single machine, this direct replacement water radiator delivers reliable thermal management.
Order your 6686077 radiator today and keep your Bobcat running cool under pressure.
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