Oxygen Sensor for 2010-2013 Land Rover LR4 & More - Bosch 18121

Bosch 18121 oxygen sensor for the 2010-2013 Land Rover LR4 V8 5.0L and other vehicles measures the air-fuel ratio continuously and reports it to the engine computer. This upstream Bosch O2 sensor is a wideband A/F type that gives the ECU more detailed readings than a switching sensor.

• Wideband A/F design that reads the air-fuel ratio across the full lambda range
• Planar pump-cell design with ceramic construction and optimized heater control
• Withstands exhaust streams up to 1,880°F
• Metal housing with an integrated heater element and TSP coating to resist vibration, corrosion and contamination
• Reaches operating temperature in under 7 seconds for quick closed-loop control

Quick facts

• Part: Bosch 18121 oxygen sensor
• Fits: 2010-2013 Land Rover LR4 V8 5.0L and other vehicles
• Position: Upstream
• Material: Metal
• Condition: New

A failing oxygen sensor can show up as a check engine light, poorer fuel economy or a rough idle, but other faults can look the same. Before replacing it, look over the wiring and connector with the engine off and cool, and leave live testing to a shop.

Fits

It fits the 2010-2013 Land Rover LR4 V8 5.0L, the 2010-2013 Land Rover Range Rover Sport V8 5.0L and the 2010-2012 Land Rover Range Rover V8 5.0L.

Specifications

In the box

One oxygen sensor with its wiring harness. This listing is one sensor; the 2010-2013 Land Rover LR4 V8 5.0L takes two.

Installation notes

• Direct-fit connectors.
• Conductive anti-seize is pre-applied to the threads.