Oxygen Sensor ERR6729 for Land Rover Defender, Discovery 1 & Range Rover Classic

Product Details and Specs

• FIT - This oxygen sensor is for Land Rover Defender 90 (1994-1995), Defender 110 (1993), Discovery 1 (1994-1995), and Range Rover Classic (1987-1995).
• PRO TIP - With an older vehicle (and older emissions system), you can’t afford to drive around with outdated O2 sensors
• NOTE - These oxygen sensor replacements come with the proper molded connector to fit your vehicle – no need to splice old connectors to your new sensors like you would with cheaper O2 sensor replacements.
• TIP - We recommend that you change both sensors at once every 60,000 miles to ensure proper monitoring
• OE REPLACEMENT - Replaces OE part ERR6729

The Land Rover models listed above require two (2) total oxygen sensors – one left and one right. Both sensors are mounted in front of the catalytic converter and measure the oxygen levels of gases leaving the combustion chamber. The amount of fuel entering your engine is then adjusted based on the oxygen levels of your exhaust gas. As an oxygen sensor ages, it becomes contaminated, reducing its ability to read and react to your vehicle’s O2/gas mixture. A sudden drop in fuel economy and a “check engine light” are common symptoms of a failed O2 sensor.