This coolant temperature sensor is just what you need to get your vehicle running great again!


  • Brand New Coolant Temperature Sensor
  • Replaces dealer part number: 21020104, 21025106
  • 2 Prong connection
  • Direct replacement
  • Built to strict quality control standards
This coolant temperature sensor makes a great replacement and has good value over the price of a dealer part.

Returns Note:

Our electrical and electronic parts are subject to strict quality control testing.  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

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Vehicle Fit

Year Make Model Description
1991-2002Saturn SC Coupe Saturn SC Coupe Coolant Temperature Sensor
1991-2002Saturn SL Sedan Saturn SL Sedan Coolant Temperature Sensor
1993-2001Saturn SW Wagon Saturn SW Wagon Coolant Temperature Sensor
Only 1 left in stock
Part #: 1ATSU00020

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout