Electrical Connector Identification on the Bobcat S185

[MikePhua]

Understanding the Bobcat S185 Platform
The Bobcat S185 is a mid-frame skid steer loader introduced in the early 2000s, designed for construction, landscaping, and agricultural tasks. With a rated operating capacity of 1,850 lbs, a tipping load of 3,900 lbs, and a hydraulic flow of 16.9 GPM, it balances compact maneuverability with robust lifting power. Powered by a Kubota V2003T turbo diesel engine, the S185 became one of Bobcat’s most popular models, with thousands sold across North America and Europe.
Its versatility stems from its compatibility with a wide range of attachments—buckets, augers, snow blowers, trenchers, and more—many of which require electrical control signals to operate auxiliary functions. This makes the machine’s electrical harness and connector system a critical part of its functionality.
Locating and Identifying the Attachment Connector
Operators often encounter a taped-up wire bundle near the battery or loader arms, especially on machines that previously ran attachments with electrical components. This bundle typically includes the attachment harness connector, also referred to as the electrical controls kit interface. It’s the plug-in point for attachments that require joystick-actuated electrical signals, such as angle brooms or snow blowers with chute rotation motors.
The connector is usually a multi-pin weather-sealed plug, mounted near the front auxiliary hydraulic couplers or tucked behind the loader arm cross member. If the wires are exposed and taped, it may indicate that the connector was removed or never installed. In such cases, installing a new electrical controls kit restores full attachment compatibility.
Electrical Controls Kit Overview
The electrical controls kit includes:

• Attachment control harness
  
• Multi-function switch panel (if not joystick-integrated)
  
• Relay and fuse block
  
• Mounting hardware and installation instructions
  

Bobcat offers model-specific kits, and part numbers can be found by entering the machine’s serial number into the official parts catalog. For the S185, the kit enables control of up to three attachment functions, depending on joystick configuration.
Installation Tips and Safety Notes

• Disconnect the battery before wiring to avoid shorts
  
• Route wires away from pinch points and hydraulic lines
  
• Use dielectric grease on connectors to prevent corrosion
  
• Secure all harnesses with zip ties and protective loom
  
• Test each function with the attachment connected before finalizing installation
  

One operator in Minnesota reported that after installing the kit, his snow blower’s chute rotation and deflector worked flawlessly, improving winter productivity and reducing manual adjustments.
Troubleshooting Common Issues
If the connector is present but non-functional:

• Check for blown fuses in the relay block
  
• Inspect for broken or corroded pins inside the connector
  
• Verify joystick button mapping in the control panel
  
• Use a multimeter to test voltage at the connector during actuation
  

If no power is detected, the issue may lie in the relay or joystick signal wire. In older machines, vibration and moisture can degrade wire insulation, requiring partial harness replacement.
Conclusion
The Bobcat S185’s electrical connector system is essential for operating powered attachments. Identifying and restoring the attachment harness connector ensures full functionality and unlocks the machine’s versatility. Whether clearing snow, trenching, or sweeping, a properly installed electrical controls kit transforms the S185 into a multi-purpose workhorse ready for any season.