Wells SU4293 Engine Coolant Temperature Sensor: Automotive. Buy Wells SU4293 Engine Coolant Temperature Sensor: Sending Units & Cables - ✓ FREE DELIVERY possible on eligible purchases. Coolant temperature sensors provide coolant temperature data to the engine management system . When not replaced, vehicle may experience inaccurate temperature gauge function, overheating engine, internal engine damage and/or excessive fuel consumption . Designed to meet or exceed OE specifications in form, fit and function . Proper alignment, positioning and spacing for faster, easier installation . Wells Vehicle Electronics is a leading source of advanced vehicle electronics components for replacement applications in the automotive aftermarket and original equipment applications. Wells offers high-technology manufacturing along with innovative solutions and improvements to OE designs. Every component either matches or improves on the OE design to ensure fast, easy installation, superior performance and reliability. . . .