Holstein
Holstein Parts

Holstein 2CTS0046 Engine Coolant Temperature Sensor

Brand Holstein 2CTS0046
Terminal Type Blade
Connector Shape Oval
Terminal Quantity 2
Connector Gender Female
Wiring Harness Included Yes
Product line Holstein Parts
Fits Buick, Chevrolet, GMC, Isuzu, and Oldsmobile · 26 vehicles

Direct-fit sensor. Built for application matching with a blade terminal, oval connector design.

Harness included. Provides the sensor connection needed for a cleaner replacement job.

Holstein Parts line. Cataloged for cooling-system temperature signal service replacement.

Cross-references Four Seasons 37866, Global Parts Distributors LLC 1712578 and NTK EF0149 for the same application. See all 17.

$35.11Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $35.11
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Engine Coolant Temperature Sensor Overview

Holstein 2CTS0046 is an engine coolant temperature sensor for vehicles that use a 2-terminal blade connection with an oval female connector. It includes the wiring harness connection needed for a direct electrical interface and is built for the cooling system monitoring circuit.

Key Features

  • Engine coolant temperature sensor for cooling system temperature feedback
  • Blade terminal design with 2 terminals
  • Oval female connector for a secure electrical connection
  • Wiring harness included for the sensor connection
  • Holstein Parts 2CTS0046 for application matching and service replacement

Fitment

  • Fits 2004-2005 Buick Rainier.
  • Fits 2002-2005 Chevrolet Trailblazer.
  • Fits 2002-2005 Chevrolet Trailblazer EXT.
  • Fits 2002-2005 GMC Envoy.
  • Fits 2002-2005 GMC Envoy XL.
  • Fits 2004-2005 GMC Envoy XUV.
  • Fits 2003-2005 Isuzu Ascender.
  • Fits 2002-2004 Oldsmobile Bravada.

What It Is Used For

  • Replacing a failed coolant temperature sensor
  • Restoring accurate engine temperature signal input
  • Addressing temperature-related warning or drivability concerns
  • Correcting intermittent sensor connection issues

Installation Notes and Tips

Verify connector shape, terminal count, and harness style before installation. Confirm the application against Holstein Parts 2CTS0046 and the vehicle service information to ensure the correct sensor is selected for the cooling system circuit.

Quality Assurance

Holstein Parts 2CTS0046 is cataloged for direct application matching across the listed Buick, Chevrolet, GMC, Isuzu, and Oldsmobile vehicles. Cross-reference part numbers for the same application include Four Seasons 37866 and NTK EF0149.

This part fits 26 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersNotes
2005BuickRainier—4.2LL6Holstein Parts
2005ChevroletTrailblazer—4.2LL6Holstein Parts
2005ChevroletTrailblazer EXT—4.2LL6Holstein Parts
2005GMCEnvoy—4.2LL6Holstein Parts
2005GMCEnvoy XLSLE4.2LL6Holstein Parts
2005GMCEnvoy XUV—4.2LL6Holstein Parts
2005IsuzuAscender—4.2LL6Holstein Parts
2004BuickRainier—4.2LL6Holstein Parts
2004ChevroletTrailblazer—4.2LL6Holstein Parts
2004ChevroletTrailblazer EXT—4.2LL6Holstein Parts
2004GMCEnvoy—4.2LL6Holstein Parts
2004GMCEnvoy XL—4.2LL6Holstein Parts
2004GMCEnvoy XUV—4.2LL6Holstein Parts
2004IsuzuAscender—4.2LL6Holstein Parts
2004OldsmobileBravada—4.2LL6Holstein Parts
2003ChevroletTrailblazer—4.2LL6Holstein Parts
2003ChevroletTrailblazer EXT—4.2LL6Holstein Parts
2003GMCEnvoy—4.2LL6Holstein Parts
2003GMCEnvoy XL—4.2LL6Holstein Parts
2003IsuzuAscender—4.2LL6Holstein Parts
2003OldsmobileBravada—4.2LL6Holstein Parts
2002ChevroletTrailblazer—4.2LL6Holstein Parts
2002ChevroletTrailblazer EXT—4.2LL6Holstein Parts
2002GMCEnvoy—4.2LL6Holstein Parts
2002GMCEnvoy XL—4.2LL6Holstein Parts
2002OldsmobileBravada—4.2LL6Holstein Parts
Directly replaces or cross-references 17 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 37866Global Parts Distributors LLC — 1712578NTK — EF0149Standard Ignition — TX108Stant — 741915S16038 12564 512 08 19244 715 08-12564-512-08-19244-715-021396312564512125751981924471581256451208192447150WT5122