6684037 Engine Speed Sensor For Bobcat 753 853 S175 S185 S250 T300

Engine Speed Sensor for Bobcat

This engine speed sensor (OEM cross-reference 6684037) monitors RPM on select Bobcat skid-steer loaders and compact track loaders, ensuring accurate engine performance data for the control system.

Overview

The engine speed sensor for Bobcat (part number 6684037) is a direct replacement sensor that detects crankshaft or flywheel rotation and sends the signal to the engine control unit. It is used on Bobcat 753, 853, S175, S185, S250, and T300 models to maintain proper fuel delivery, timing, and diagnostics. A failing speed sensor can cause rough running, stalling, or no-start conditions.

Built For Performance

• Precision-machined housing for an exact fit in the sensor port
• Sealed electrical connector resists moisture and vibration
• Meets or exceeds OEM specifications for signal accuracy
• Direct plug-and-play replacement with no wiring modifications needed
• Rugged construction withstands engine heat and oil exposure

Fits These Machines

• for Bobcat 753
• for Bobcat 853
• for Bobcat S175
• for Bobcat S185
• for Bobcat S250
• for Bobcat T300

On-The-Job Use

• Restores accurate RPM reading on the dashboard display
• Eliminates intermittent stalling caused by a faulty sensor signal
• Helps diagnose engine misfire or poor performance issues

Specs At A Glance

Good To Know

Q: Will this sensor work on a Bobcat T190? A: This sensor is designed for the 753, 853, S175, S185, S250, and T300 models; check your machine's part number compatibility before purchase.

Q: Is the sensor sold individually or as part of a kit? A: It is sold individually as a single engine speed sensor—no additional hardware or wiring is required for installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.