PAIR OF PREMIUM PRE CATALYTIC OXYGEN O2 SENSORS TO SUIT TOYOTA LANDCRUISER GRJ121R 1GR-FE 4.0L V6

Premium Pre Catalytic Oxygen Sensor – Upstream Exhaust Feedback for Engine Management

A pre catalytic oxygen sensor, also known as an upstream O2 sensor, is positioned before the catalytic converter in the exhaust system. It monitors oxygen content in exhaust gases leaving the engine and sends this information to the ECU, helping the fuel injection system manage the air fuel ratio during normal operation.

When sensor readings become slow, incorrect, or unstable, the vehicle may experience increased fuel use, poor drivability, check engine light warnings, or emission related faults. This Premium oxygen sensor pair is a practical option when both front sensor positions require replacement as part of exhaust, fuel control, or diagnostic repair work.

Why Choose Premium Pre Catalytic Oxygen Sensor Pair?

• Manufactured using proven OE technology.
• Designed to support durable and efficient sensor operation.
• Corrosion resistant construction suited to exhaust system conditions.
• Helps maintain accurate upstream exhaust monitoring.
• Suitable for replacing worn or faulty front oxygen sensors.
• Practical choice for servicing pre catalytic sensor locations where required.

Choose Premium pre catalytic oxygen sensor pair for a practical replacement option when servicing upstream exhaust sensors.

These pre-cat oxygen sensors suit Toyota Landcruiser fitted with the 1GR-FE V6 engine.

Specifications:

• Type: Zirconia
• Number of wires: 4

Contents:

• 2 X Pre catalytic oxygen sensor

Vehicle Fitment Guide

Notes:

• A Pair of Post catalytic oxygen sensor to suit Toyota Landcruiser 1GR-FE V6 engine can be purchased through another listing.
• Please verify that your oxygen sensor matches the dimensions of the one in this listing prior to purchase. If you are unsure, please contact us for further assistance.
• The image is for illustrative purposes only.