Automotive replacement part built to restore accurate exhaust oxygen readings on compatible Vauxhall models, the GEARLEADER Rear Oxygen Sensor promises straightforward fitment and dependable operation. Peace of mind for DIYers and independent garages tackling emissions faults. Worth choosing over an OEM unit for routine repairs?
⚡ At a Glance
- • Sensing Accuracy: Reliable detection of oxygen levels for correct lambda feedback
- • Best for: DIY mechanics and independent garages replacing rear O2 sensors on compatible Vauxhall models
- • Not ideal for: Owners seeking manufacturer-branded OEM units or sensors for non-listed makes
Rear oxygen sensor compatible with several Vauxhall models and listed OE numbers. Suited to repair shops and DIYers needing a direct-fit replacement.
Accurate lambda readings – with a platinum sensing element
Platinum sensing material and a ceramic substrate generate a voltage response proportional to the oxygen difference between exhaust gas and ambient air. The electrical signal gives the engine control unit a clear measure of combustion efficiency.
More precise air–fuel data helps the engine management system refine fuelling and reduce emissions. Useful when diagnosing misfires, poor economy or erratic idling.
Quicker operational readiness – with a fast-acting heater
A built-in heater for planar and wire thimble sensor types raises the sensing element to operating temperature within seconds. Rapid warm-up reduces the cold-start window when readings can be unreliable.
Faster stabilisation delivers trustworthy readings during short trips and cold starts, improving diagnostic accuracy. Workshops benefit from fewer repeat checks and more reliable fault confirmation.
Simplified installation – with direct-fit OE connectors and pre-coated threads
True direct-fit harnesses match original equipment connectors, and threads arrive pre-coated with anti-seize compound to prevent galling. Mechanical interfaces align with OE mounting points to avoid adaptors.
Pre-lubricated threads and matching plugs speed up replacement and reduce the risk of cross-threading. Ideal for DIY installers and busy garages seeking a quick turnaround.
✨ The 4 Key Reasons for GEARLEADER Rear Oxygen Sensor
- Wide OE Coverage – Matches a long list of Vauxhall OE reference numbers for correct replacement
- Designed for Rapid Warm-up – Heater brings sensor to temperature quickly for reliable early readings
- Robust Build – Construction resists exhaust heat and corrosion for long service life
- Ready to Fit – Pre-lubricated threads and matching harness reduce installation time
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Compatible models: Vauxhall Astra, Corsa, Meriva, Omega, Signum, Vectra, Zafira
- Replace OE Numbers: 0000055205018, 0000071744403, 0055205018, 0855356, 93185493, 0855357, 0855358, 0855426, 09202575, 09202576, 09202577, 55205018, 55210300, 55353811, 55353812, 55566650, 71744403, 71748280, 855422, 93185456
- Materials: Platinum sensing element, ceramic substrate, 310S stainless steel housing
- Sensor type: Lambda / O2 sensor (rear application)
❓ Frequently Asked Questions
Q: Which Vauxhall models is it compatible with?
A: Compatibility includes Vauxhall Astra, Corsa, Meriva, Omega, Signum, Vectra and Zafira as listed in the product description.
Q: Are the threads pre-coated or ready to install?
A: Threads come pre-coated with anti-seize compound and user feedback notes the part arrives pre-lubricated and ready to fit.
Q: Does the sensor include a heater element?
A: A fast-acting heater is incorporated for planar and wire thimble-type sensors so the sensing element reaches operating temperature within seconds.
🏆 Our Verdict
The GEARLEADER Rear Oxygen Sensor suits DIYers and independent garages needing a direct-fit replacement for a range of Vauxhall models. Durable materials, a quick-warm heater and OE-style connectors make it straightforward to fit and reliable in service. Offers solid value as an aftermarket alternative with design choices that aim for long-term reliability.
