HomeEmission Control > SensorsStandard Ignition TH174 Throttle Position Sensor
Part #: TH174

Standard Ignition TH174 Throttle Position Sensor

4 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$319.35Free 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: Buick, Regal and Riviera
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 TH174 Throttle Position Sensor

The Standard Ignition TH174 throttle position sensor is designed for precise throttle monitoring in Buick Regal and Riviera models. This sensor ensures accurate throttle input data for optimal engine performance and emission control.

  • Compatible with Buick Regal and Riviera vehicles
  • Connector type: Plug in with no connector included
  • Single connector quantity for streamlined installation
  • Female terminal gender with three bullet-type terminals
  • Part number TH174 for easy identification and replacement

Technical Details and Attributes

The TH174 throttle position sensor features a plug-in connector type without an included connector, simplifying wiring compatibility with existing vehicle harnesses. It has one connector with female terminal gender and three bullet-type terminals, which are common in emission control sensors. These specifications ensure reliable electrical connections and accurate signal transmission to the engine control unit (ECU). The sensor is specifically engineered for Buick Regal and Riviera models, providing a precise fit and function.

Function and Application

This throttle position sensor is critical for monitoring the position of the throttle valve, allowing the engine control system to adjust fuel injection and ignition timing accordingly. It helps maintain proper engine performance and emission levels.

  • Resolves erratic idle or stalling issues
  • Corrects throttle response delays or hesitation
  • Helps fix check engine light codes related to throttle position
  • Improves fuel efficiency by providing accurate throttle data
  • Supports emission control compliance in Buick Regal and Riviera vehicles

Installation Notes and Tips

When installing the Standard Ignition TH174 throttle position sensor, ensure the vehicle is turned off and the battery is disconnected to prevent electrical shorts. The sensor’s plug-in connector type requires no additional connectors, but verify the existing wiring harness matches the female bullet terminals. Proper alignment and secure mounting are essential for accurate sensor readings. Calibration or ECU reset may be necessary after installation to clear any stored codes.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring durability and reliable performance. The TH174 throttle position sensor undergoes rigorous testing to maintain consistent quality. Warranty coverage details should be confirmed with the product documentation or supplier, as it may vary by region.

BrandStandard Ignition
Part NumberTH174
Connector GenderNo Connector
Connector TypePlug In
Terminal GenderFemale
Terminal TypeBullet

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1985BuickRegal3.8LV6N/A
1985BuickRiviera3.8LV6N/A
1984BuickRegal3.8LV6N/A
1984BuickRiviera3.8LV6N/A

* 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:

141-4652-19308200-1416213-917250366585S505471-754975410EC3110ECA1861SS10466TPS152

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