he AMR6244 heated oxygen sensor is designed for Land Rover 4.0L V8 engines, providing accurate exhaust gas monitoring to maintain proper air-fuel ratios and engine performance.

This OBD2-compliant sensor is used in both front (upstream) and rear (downstream) positions, with four sensors required per vehicle for complete system operation. A properly functioning oxygen sensor is critical for fuel efficiency, emissions control, and overall drivability.

Faulty sensors can cause check engine lights, poor fuel economy, rough running, and increased emissions. Replacing worn or aging sensors restores proper engine management and ensures optimal performance.

Ideal for resolving check engine lights, restoring fuel efficiency, and maintaining emissions compliance on 4.0L V8-equipped Land Rover models.

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Vehicle Fitment

Defender

• Defender 90 NAS L316 | 1997–1998 | 4.0L V8

Discovery

• Discovery I | 1996–1999 | 4.0L V8 (with AEL)

Range Rover

• Range Rover P38 | 1997–1998 | 4.0L V8 (VIN range VA350101 to WA410481)

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Supersession Part Numbers
No supersessions found.

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FAQ

How many oxygen sensors does my vehicle need?
These vehicles require four sensors total—two front (upstream) and two rear (downstream).

What does a heated oxygen sensor do?
It monitors exhaust gases and uses an internal heater to reach operating temperature quickly for accurate readings.

What are symptoms of a failing oxygen sensor?
Common signs include check engine lights, poor fuel economy, rough idle, and increased emissions.

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Part Number: AMR6244

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