Help your engine computer keep an accurate read on exhaust oxygen with the DENSO Auto Parts Oxygen Sensor 234-4212, a heated, narrow-band, 4-wire universal sensor. It fits many vehicles, among them the 2003-2013 Chevrolet Silverado 1500, the 1990-2003 Ford F-150 and the 2003-2013 GMC Sierra 1500. See the Buyer's Guide tab for the full list with engine codes such as V8-5.3L and L6-4.9L.
The sensor measures oxygen in the exhaust stream and sends that signal to the engine control module, which uses it to manage the air-fuel ratio. Its built-in heater helps it reach operating temperature quickly. Depending on the application, it is cataloged for the upstream, downstream and downstream right positions.
Signs that an oxygen sensor may need replacing include a check engine light, reduced fuel economy, rough running or a failed emissions test. Diagnose the cause before replacing the sensor. Quantity per application varies: some listed applications use one sensor and others use two. This listing is for one sensor. Country of origin: United States.
This part cross-references / interchanges with the following part numbers:
What does the DENSO 234-4212 oxygen sensor do?
It measures oxygen in the exhaust and signals the engine control module, which uses that reading to manage the air-fuel ratio. Its heater helps it reach operating temperature quickly.
Will it fit my 2003-2013 Chevrolet Silverado 1500?
It is listed for 2003-2013 Chevrolet Silverado 1500 and 2003-2013 GMC Sierra 1500 applications. Check the Buyer's Guide tab for your engine and sensor position.
What are the specs of this oxygen sensor?
It is heated, narrow-band and universal fit, with 4 wires, an 11.77 in wiring harness length, a 0.708 in thread diameter and threaded mounting.
How many sensors do I need?
Quantity varies by application: some listed applications use one sensor and others use two. This listing is for one sensor.
What protects the sensing element?
A laser-welded stainless housing, a PTFE filter and dual-layer protection shield the ceramic element. DENSO's aluminum oxide trap layer is designed to guard it from silicone and lead poisoning.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
