Denso 234-4669 Oxygen Sensor - Downstream Right or Upstream

Denso OE Style Oxygen Sensor 234-4669

Denso 234-4669 is an OE Style heated oxygen sensor built for direct replacement on select Chevrolet, GMC, Cadillac, and Hummer applications. It is engineered for a specific fit and uses a 4-wire, threaded design with a female connector for straightforward OE-style service.

For drivers searching for an upstream oxygen sensor for a Chevrolet Silverado 1500, GMC Sierra 2500 HD, or Chevrolet Camaro, this Denso sensor is built to match the original mounting and electrical layout. The 234-4669 part number is also a direct reference point when comparing replacement options for the same application.

Key Features

• Heated oxygen sensor for faster operating response
• Specific fit design for OE-style replacement
• 4-wire configuration with female connector
• Threaded mounting with 0.708 in. thread diameter
• 14.76 in. wiring harness length
• Built to OE standards for exact replacement fitment
• Aluminum oxide trap layer helps protect the ceramic element from silicone and lead contamination

OE Style Construction

Denso’s OE Style line focuses on direct replacement parts that match factory fit and function. This oxygen sensor is precision built for the original application, helping maintain proper exhaust feedback for engine management systems. The Denso 234-4669 is a practical choice when replacing a worn upstream sensor on vehicles such as the Chevrolet Caprice, Chevrolet Corvette, and GMC Sierra 3500.

This part cross-references Bosch 15282 and NTK 21549 for the same application.

What This Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Rough idle caused by inaccurate exhaust feedback
• Reduced fuel economy from a failing upstream sensor
• Slow sensor response during closed-loop operation
• Emissions test failures tied to sensor degradation

Installation Notes and Fitment

Compatible with select upstream and downstream right positions depending on vehicle application. Fits 2014-2017 Chevrolet Caprice, upstream; 2014-2017 Chevrolet SS, upstream; 2010-2015 Chevrolet Camaro, upstream; 2007-2014 Chevrolet Silverado 3500 HD, upstream; 2007-2014 GMC Sierra 3500 HD, upstream; 2009-2013 Chevrolet Corvette, upstream; 2012 Chevrolet Silverado 2500 HD, upstream; 2003-2010 Chevrolet Silverado 2500 HD, upstream; 2011 Chevrolet Silverado 2500 HD, cab & chassis, upstream; 2007 Chevrolet Silverado 1500 Classic, upstream; 2007 Chevrolet Silverado 1500 HD Classic, upstream; 2007 Chevrolet Silverado 2500 HD Classic, upstream; 2007 Chevrolet Silverado 2500 HD Classic, downstream right; 2007 Chevrolet Silverado 3500 Classic, upstream; 2007 Chevrolet Silverado 3500 Classic, downstream right; 2007 GMC Sierra 1500 Classic, upstream; 2007 GMC Sierra 1500 HD Classic, upstream; 2007 GMC Sierra 2500 HD Classic, upstream; 2007 GMC Sierra 2500 HD Classic, downstream right; 2007 GMC Sierra 3500 Classic, upstream; 2007 GMC Sierra 3500 Classic, downstream right; 2003-2006 Cadillac Escalade, upstream; 2003-2006 Cadillac Escalade ESV, upstream; 2003-2006 Cadillac Escalade EXT, upstream; 2003-2006 Chevrolet Avalanche 2500, upstream; 2003-2006 Chevrolet Avalanche 2500, downstream right; 2003-2006 Chevrolet Silverado 1500, upstream; 2005-2006 Chevrolet Silverado 1500 HD, upstream; 2003 Chevrolet Silverado 1500 HD, upstream; 2003-2006 Chevrolet Silverado 2500 HD, downstream right; 2003-2006 Chevrolet Silverado 3500, upstream; 2003-2006 Chevrolet Silverado 3500, downstream right; 2006 Chevrolet Suburban 1500, upstream; 2003-2006 Chevrolet Suburban 2500, upstream; 2003-2006 Chevrolet Suburban 2500, downstream right; 2003-2006 GMC Sierra 1500, upstream; 2005-2006 GMC Sierra 1500 HD, upstream; 2003 GMC Sierra 1500 HD, upstream; 2003-2006 GMC Sierra 2500 HD, upstream; 2003-2006 GMC Sierra 2500 HD, downstream right; 2003-2006 GMC Sierra 3500, upstream; 2003-2006 GMC Sierra 3500, downstream right; 2003-2006 GMC Yukon, upstream; 2003-2006 GMC Yukon XL 1500, upstream; 2003-2006 GMC Yukon XL 2500, upstream; 2003-2006 GMC Yukon XL 2500, downstream right; 2003-2006 Hummer H2, upstream; 2003-2004 Chevrolet Silverado 2500, upstream; 2003-2004 GMC Sierra 2500, upstream.

Before installation, confirm the connector style, thread size, and sensor position on the vehicle. The 14.76-inch harness length and threaded mount support OE-style routing and placement on the listed Chevrolet Silverado, GMC Sierra, and related GM platforms.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE standards for consistent replacement quality and first-time fit. The sensor’s protective trap layer is part of Denso’s design approach to help preserve the sensing element in demanding exhaust environments.