Womala Oxygen Sensor LR035746 for Land Rover Discovery

Product Overview

The Mid Oxygen Sensor LR035746 is a genuine OE-grade emissions component for select for Land Rover vehicles with 3.0L V6 and 5.0L V8 petrol engines. This mid-position (center) sensor is located between the catalytic converters, monitoring exhaust oxygen content and providing feedback to the ECU for precise air-fuel ratio control. LR140078 is the current replacement part, superseding LR035746 and LR098285 .

Key Features

• Mid (center) position – left-hand side sensor between catalytic converters 

• Heated sensor design – reaches operating temperature quickly for accurate readings

• OE-grade quality – genuine Land Rover specification

• Plug-and-play installation – direct-fit replacement with factory connector

• For 3.0L V6 and 5.0L V8 petrol engines – AJ126 / AJ133 engine families

OE Cross-Reference

💡 Supersession Path: LR035746 → LR098285 → LR140078. LR140078 is the current replacement part .

Technical Specifications

Vehicle Fitment

Extended applications (verify with VIN):

• Range Rover Velar (L560) – 3.0L petrol

• New Defender (L663) – 5.0L V8 petrol

⚠️ Important: This is the left-hand center (mid) position oxygen sensor – not for the rear or right-hand positions. For the right-hand center sensor, refer to LR035747 . For rear (post-catalyst) sensors, refer to LR035748 . Fitment varies by model year, VIN range, and emissions specification – verify before ordering.

Signs of Failure

• Check engine light – O₂ sensor-related DTCs

• Poor fuel economy – incorrect air-fuel mixture

• Failed emissions test – elevated pollutant levels

• Rough idle or hesitation – engine performance issues

💡 This sensor was subject to a Land Rover Technical Service Bulletin for 5.0L V8 engines – premature failure due to a manufacturing fault at the supplier. For affected vehicles, check date code on the sensor body to ensure it is 12th December 2012 or later before fitting .

Critical – Verify Your VIN Before Ordering

Oxygen sensors are VIN‑, engine‑, and position‑specific. Variations in engine type (3.0L vs. 5.0L), emissions specification (SULEV vs. non-SULEV), and VIN range affect fitment . Provide your VIN – our team confirms exact compatibility before dispatch. We cannot accept returns for misordered parts without VIN verification.

💡 Installation Tip: Professional installation recommended. Allow the engine to cool before replacement. Apply anti-seize compound to threads (avoiding sensor tip) and torque to specification. Replace in pairs for balanced performance.

Why Choose Us

Contact us for bulk orders or VIN‑checked quotes.

Specifications subject to change; images for reference only.Aftermarket replacement – not affiliated with Jaguar Land Rover.

Frequently Asked Questions

• Extensive Industry Experience: 13 years specializing in Auto Parts auto parts with precise product matching and technical solutions.
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