HVAC Workbench

How to Choose a Coolant Temperature Sensor: 4 Direct-Fit Options From $5.99 to $19.71

Need a replacement engine coolant temperature sensor? Compare four direct-fit options for GM, Cummins, Dodge/Chrysler/Jeep, and Honda/Acura, with listed prices from $5.99 to $19.71.

Last updated Aug 15, 2026

Quick take

If you're searching for thermostats HVAC controls sensors, these four engine coolant temperature sensors cover very different vehicle families. The group's listed prices span more than $13 from the least expensive to the most expensive in this set. All four listings show new condition and direct-fit or direct-replacement language, but the actual vehicle coverage is the main differentiator. Each sensor is described for a specific application rather than as a universal part, so the product title and interchange numbers matter.

Listed-price comparison

ProductListed pricePrice bar
Pressure Temperature Sensor 2897334 for Cummins M11/ISC/ISL/ISM/ISXUSD 19.71
For GMC Chevrolet Pontiac Cadillac Coolant Temperature SensorUSD 5.99
TX81 Engine Coolant Temperature Sensor Fit Dodge Ram Dakota Chrysler Jeep 4LUSD 9.75
OEM Engine Coolant Temperature Sensor for 2006-2025 Honda & Acura 37870-RWC-A01USD 16.80

Which should you pick?

  • Choose the Pressure Temperature Sensor 2897334 if you need a pressure/temperature dual sensor for a Cummins M11/ISC/ISL/ISM/ISX application.
  • Choose the For GMC Chevrolet Pontiac Cadillac sender if you want the lowest listed price for a GM-family coolant temperature sensor.
  • Choose the TX81 Engine Coolant Temperature Sensor if you have a Dodge, Ram, Dakota, Chrysler, or Jeep with a 4L engine and want a direct-replacement sensor carrying the TX81 interchange.
  • Choose the OEM Engine Coolant Temperature Sensor 37870-RWC-A01 if you want an OEM-style part for later-model Honda and Acura vehicles.

Product notes

Pressure Temperature Sensor 2897334 for Cummins

At USD 19.71, this is the top-priced option in this group and the only one described as a pressure/temperature dual sensor. It's listed as a direct replacement for Cummins M11, ISC, ISL, ISM, ISX engines, with interchange numbers 2872784, 2897334, and 4921324. The condition is new, and the connector color is black. If your vehicle uses that dual-sensor setup, this puts the pressure and temperature readings in one unit. On the downside, that specific Cummins fitment makes it a poor match for the GM, Dodge, or Honda applications seen in the other listings.

For GMC Chevrolet Pontiac Cadillac Coolant Temperature Sensor

The Luft Meister sender is the least expensive item here at USD 5.99. It's listed as a direct-fit replacement, and the cross-reference numbers include 805218T, 805218, and GM OE numbers such as 12146312. The title covers GMC, Chevrolet, Pontiac, and Cadillac vehicles, and the package includes one sensor. This is a sensible budget option if you're working on a GM-family car, but the fitment is tied to the interchange list, so it's not a one-size-fits-all sensor. With a price this low, it's easy to include in a cooling-system refresh.

TX81 Engine Coolant Temperature Sensor for Dodge/Chrysler/Jeep

Priced at USD 9.75, this C-HORSE sensor carries the TX81 interchange number and also matches 56027873, 5S1500, SU3035, and 2132811. It's described as a direct replacement for Dodge Ram, Dakota, Chrysler, and Jeep models, with a 4L engine reference in the title. The condition is new, and the listing includes a California Prop 65 warning. The main limitation is the sparse description: there's no detailed fitment chart, so you'll rely on the title and interchange numbers to confirm compatibility. For that reason, it fits best when the TX81 cross-reference is already what your vehicle uses.

OEM Engine Coolant Temperature Sensor for Honda & Acura

This USD 16.80 sensor is the only unit in the set with Honda in the brand and OEM in the title. It's listed for 2006-2025 Honda and Acura models, with part number 37870-RWC-A01 and cross-references such as ECT347, EF0175, SU10432, and SU10433. The description covers newer models like the Odyssey, Passport, Pilot, and Ridgeline, and notes a female connector with a 19mm hex. Because it's specifically labeled for Honda/Acura, it's a strong candidate when you want a clean part-number match, though it comes at a higher listed price than the two cheaper options.

Final recommendation

Match the sensor to your vehicle family first. If you need a Cummins dual-sensor, the 2897334 part is the direct choice. For a GM-family sender at a low price, the Luft Meister unit gets you there. On a Dodge/Chrysler/Jeep with a 4L engine, the TX81 from C-HORSE lines up with the cross-reference numbers. And for later Honda/Acura models, the OEM-style 37870-RWC-A01 sensor gives you the part-number specificity that the others don't offer.

Products in this article
Pressure Temperature Sensor 2897334USD 19.71View on eBayFor GMC Chevrolet Pontiac Cadillac Coolant Temperature Sensor Water Temp SenderUSD 5.99View on eBayTX81 Engine Coolant Temperature Sensor Fit: Dodge Ram Dakota Chrysler Jeep tj 4LUSD 9.75View on eBayOEM Engine Coolant Temperature SensorUSD 16.80View on eBay
Pressure Temperature Sensor 2897334USD 19.71View on eBayFor GMC Chevrolet Pontiac Cadillac Coolant Temperature Sensor Water Temp SenderUSD 5.99View on eBayTX81 Engine Coolant Temperature Sensor Fit: Dodge Ram Dakota Chrysler Jeep tj 4LUSD 9.75View on eBayOEM Engine Coolant Temperature SensorUSD 16.80View on eBay

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