HomeBelts and Cooling > Sending UnitsStandard Ignition TS-338 Engine Coolant Temperature Sender
Part #: TS-338

Standard Ignition TS-338 Engine Coolant Temperature Sender

⚙️ 42 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$23.54Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: BMW, 325i, 325is, 318i, 318is, 325iX, M3, 525i, 535i, 325, 528e, 535is, 325e, and 325es
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Standard Ignition Engine Coolant Temperature Sender TS-338

The Standard Ignition Engine Coolant Temperature Sender TS-338 is designed for precise temperature monitoring in select BMW models. This bolt-on sensor features a female square plug-in connector and a single male blade terminal, ensuring reliable electrical connections for accurate engine coolant temperature readings.

  • Attachment Method: Bolt on for secure installation
  • Connector Gender: Female with a square shape
  • Connector Quantity: Single connector for streamlined wiring
  • Connector Type: Plug in for easy connection
  • Terminal Gender: Male blade terminal
  • Terminal Quantity: One terminal for efficient signal transmission

Detailed Product Description

The TS-338 Engine Coolant Temperature Sender by Standard Ignition is engineered to provide consistent and accurate temperature data to the engine control unit. Its bolt-on design allows for straightforward replacement or installation on compatible BMW vehicles, including the 318i, 318is, 325e, 325es, 325i, 325is, 325iX, 525i, 528e, 535i, 535is, and M3 models. The sensor’s female square plug-in connector and single male blade terminal ensure a secure and stable electrical interface, minimizing the risk of signal loss or corrosion over time.

Compatible BMW Models and Applications

This Engine Coolant Temperature Sender TS-338 is compatible with a range of BMW vehicles, specifically models from the 3 Series and 5 Series lineup, as well as the M3. It is suitable for applications requiring precise coolant temperature monitoring to maintain optimal engine performance and prevent overheating.

  • Monitors engine coolant temperature accurately
  • Helps prevent engine overheating and related damage
  • Supports engine control unit in fuel and ignition adjustments
  • Detects temperature fluctuations for efficient cooling system operation
  • Replaces faulty or worn temperature senders in BMW 3 and 5 Series models

Installation Notes and Tips

Installation of the TS-338 sensor requires a bolt-on approach, ensuring a secure fit on the engine block or coolant passage. When installing, verify the connector orientation matches the female square plug-in design and that the male blade terminal is properly seated to avoid electrical issues. It is recommended to disconnect the battery before installation to prevent electrical shorts. Use appropriate torque specifications for the bolt to avoid damage to the sensor or mounting surface.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The TS-338 Engine Coolant Temperature Sender undergoes rigorous quality control testing to ensure consistent operation under various driving conditions. Warranty coverage details should be confirmed at the point of purchase, typically including protection against manufacturing defects for a specified period.

BrandStandard Ignition
Part NumberTS-338
Attachment MethodBolt On
Connector GenderFemale
Connector ShapeSquare
Connector TypePlug In
Terminal GenderMale
Terminal TypeBlade

This part fits 42 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
1995BMW325i2.5LL6N/AFits engines with gauges.
1995BMW325is2.5LL6N/AFits engines with gauges.
1994BMW325i2.5LL6N/AFits engines with gauges.
1994BMW325is2.5LL6N/AFits engines with gauges.
1993BMW325i2.5LL6N/AFits engines with gauges.
1993BMW325is2.5LL6N/AFits engines with gauges.
1992BMW318iConvertibleN/AFits engines with gauges.
1992BMW325i2.5LL6N/AFits engines with gauges.
1992BMW325is2.5LL6N/AFits engines with gauges.
1991BMW318iN/AFits engines with gauges.
1991BMW318is1.8LL4N/AFits engines with gauges.
1991BMW325i2.5LL6N/AFits engines with gauges.
1991BMW325is2.5LL6N/AFits engines with gauges.
1991BMW325iXN/AFits engines with gauges.
1991BMWM3N/AFits engines with gauges.
1990BMW325i2.5LL6N/AFits engines with gauges.
1990BMW325is2.5LL6N/AFits engines with gauges.
1990BMW325iXN/AFits engines with gauges.
1990BMW525i2.5LL6N/AFits engines with gauges.
1990BMW535iN/AFits engines with gauges.
1990BMWM3N/AFits engines with gauges.
1989BMW325iN/AFits engines with gauges.
1989BMW325isN/AFits engines with gauges.
1989BMW325iXN/AFits engines with gauges.
1989BMW525iN/AFits engines with gauges.
1989BMW535iN/AFits engines with gauges.
1989BMWM3N/AFits engines with gauges.
1988BMW325iN/AFits engines with gauges.
1988BMW325isN/AFits engines with gauges.
1988BMW325iXN/AFits engines with gauges.
1988BMW528eN/AFits engines with gauges.
1988BMW535iN/AFits engines with gauges.
1988BMW535isN/AFits engines with gauges.
1988BMWM3N/AFits engines with gauges.
1987BMW325eN/AFits engines with gauges.
1987BMW325esN/AFits engines with gauges.
1987BMW325iN/AFits engines with gauges.
1987BMW325isN/AFits engines with gauges.
1987BMW528eN/AFits engines with gauges.
1987BMW535iN/AFits engines with gauges.
1986BMW325eN/AFits engines with gauges.
1986BMW325esN/AFits engines with gauges.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

0091072111262171051217-138417105111T1032201-1386213-32193796653-7634TS10127TS6100TU292TW174V20-72-0442WT624WTC1279

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.