Denso Oxygen Sensor - 234-9143

Brand: Denso Car Parts

Have a product question? Ask us
Part Number: 234-9143
Part Location: U.S.
Availability: *Special Order
Delivery: Up to 2 Weeks
If purchased before 12:00 EDT - estimated delivery by July 04

Retail: $322.34

Price: $306.99

You Save: $15.35

Connector Style

4 Wire

Includes Adapter Fittings

Includes Weather Pack Harness

Includes Weld Fitting

Heated

Voltage Range

Share this page

Denso Oxygen Sensor

Oxygen Sensor; OE-Replacement

MPN: 2349143

DENSO's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel mixture under idle, moderate acceleration and cruise conditions. Under heavy acceleration the oxygen sensor goes into "open loop," which basically means that the engine management computer system ignores the oxygen sensor. Oxygen sensors have a smaller range of limits in detecting and adjusting the difference from an optimum air/fuel ratio. As the automotive industry continues to improve on their standards DENSO is keeping the pace with advancements in our engineering to meet the demands from the industry. Also, as car owners are holding on to their vehicles for longer periods, DENSO continues to make auto parts available for those critical replacement parts for all applications. Oxygen sensors, also known as Lambda sensors or Oxygen sensors among some vehicle manufacturers, are among the most sensitive and critical components on your car's engine. Earlier fuel injection systems employed one oxygen sensor in the exhaust system to maintain closed-loop air/fuel mixture control. However, today's engines may use as many as four sensors, which monitor not only exhaust gas oxygen content but catalytic converter efficiency as well. In order to perform these functions properly, the sensors must adhere to OE standards within incredibly close tolerances. A malfunctioning or incorrectly calibrated oxygen sensor can hurt drivability and illuminate the malfunction indicator, resulting in costly and time-consuming repairs. DENSO First Time Fit® oxygen sensors are designed to meet those tolerances and more.

Type: Heated

Connector Style: 4 Wire

Voltage Range: OEM

Includes Adapter Fittings: No

Includes Weather Pack Harness: Yes

Includes Weld Fitting: No

Features

Stainless Steel Housing Resists Corrosion And Contamination With A Rugged, Watertight Body
Robotic Laser Weld
Porous PTFE Filter Blocks Efficiency-Robbing Contaminants
Refined Zirconia Element Improves Sensor Response
Double Protection Cover Maintains Proper Unit Temperature For Quicker Response Times And Protects The Ceramic Element Against Silicone And Lead Poisoning
Aluminum-Oxide Trap Layer Keeps Silicone And Lead Outside The Ceramic Element Through Exclusive Design, Preventing Damage To The Platinum Electrode
Superior Design Maximizes Engine Performance While Reducing Fuel Consumption And Harmful Emissions
Ensures Smog Test Compliance
Limited 90 Day Warranty

Specifications of Denso Oxygen Sensor - 234-9143
Connector Style	4 Wire
Includes Adapter Fittings	No
Includes Weather Pack Harness	Yes
Includes Weld Fitting	No
Type	Heated
Voltage Range	OEM