TRQ OSA61746 Heated Oxygen O2 Sensor Downstream - Direct Fit

In this review of the TRQ OSA61746 Heated Oxygen O2 Sensor downstream unit, the bottom line is simple: it is a budget-friendly direct fit replacement for many Chevrolet and GMC V8 and V6 models that offers easy installation and solid value for routine repairs. The reviewer found it best suited to DIYers who need a quick, pre-assembled plug-and-play sensor to restore O2 monitoring after a failed unit. While fit and installation were straightforward for most vehicles listed, functionality and long-term durability showed mixed results among users, so buyers should weigh the low price against occasional reports of defective parts.

Key Features

• Direct fit compatibility: Built as a pre-assembled downstream O2 sensor meant to match factory mounting and plug patterns for listed Chevrolet and GMC applications to minimize modifications.
• Wide vehicle coverage: Reference numbers and vehicle listings indicate compatibility with Silverado, Malibu and other models, making it useful for owners of several GM vehicles who need a replacement downstream sensor.
• Pre-assembled design: The sensor arrives ready to install to save time and reduce the likelihood of installation error compared with piecemeal parts.
• Heat element included: The heated element helps the sensor reach operating temperature faster so the vehicle can resume normal closed-loop fuel control more quickly after start.
• DIY support promise: The brand provides DIY video resources to help with installation, which is helpful for home mechanics needing visual guidance.

Who It's For

This sensor is aimed at DIY mechanics and independent repair shops replacing a downstream O2 sensor on compatible Chevrolet or GMC models, especially Silverado owners with V8 engines from the 2008-2013 range and Malibu V6 3.6L models. It is also a sensible choice for shoppers who prioritize budget and quick, direct-fit parts that reduce shop time.

Shoppers who require guaranteed long-term reliability or who cannot confirm exact fitment from the vehicle compatibility chart should look elsewhere or consider sourcing a factory-original sensor; some customers reported receiving defective parts and mixed functional outcomes.

Pros & Cons

Pros

• Good value for money compared with dealer-priced replacements.
• Pre-assembled direct-fit design makes installation straightforward for many vehicles.
• Brand provides DIY video resources to guide installation steps.
• Includes a heating element to reach operating temperature quickly.

Cons

• Mixed reports on functionality and durability, with some customers receiving defective units.
• Fitment varies by engine and bank; buyers must confirm exact compatibility before purchase.

Specifications

Part Number / Reference	OSA61746 (multiple reference numbers listed)
Application	Downstream O2 Oxygen Sensor
Compatible Vehicles	Chevrolet Silverado, Malibu; other GM models listed for 2008-2013
Engine Coverage	V8 4.8L, 5.3L, 6.0L, 6.2L and V6 3.6L examples
Installation	Pre-assembled direct replacement, plug-and-play
Features	Heated sensor element

Our Verdict

The TRQ OSA61746 downstream O2 sensor is a cost-effective direct fit replacement for many Chevrolet and GMC models and provides good value for DIYers who need a quick repair and appreciate pre-assembled parts and installation videos. It is recommended for routine replacement when fitment is confirmed, but buyers seeking guaranteed long-term reliability may prefer an OEM unit due to mixed reports on durability and occasional defective items.

Frequently Asked Questions

Will this sensor fit my Silverado 5.3L?
Check the compatibility list included with the product and confirm engine year and bank location; the sensor is listed for many 2008-2013 Silverado 5.3L downstream positions.

Is the sensor heated?
Yes, this downstream O2 sensor includes a heating element to help it reach operating temperature faster.

Are installation instructions provided?
The brand offers DIY videos and guidance to help with installation; confirm vehicle-specific steps before starting the repair.