Keep your downstream exhaust feedback signal accurate with the DENSO Oxygen Sensor 234-4305. This heated, narrow-band 4-wire sensor drops in as a direct-fit replacement for the 2009-2010 Pontiac Vibe (L4-1.8L), 2009-2013 Toyota Corolla (L4-1.8L), and 2009-2014 Toyota Matrix (L4-1.8L). Mounted in the downstream position, it reads the oxygen content in the exhaust after the catalytic converter so the ECU can monitor converter operation and manage fuel trim.
- Laser-welded stainless housing: resists corrosion, while a PTFE filter blocks contaminants under harsh engine conditions.
- Dual-layer protection: shields the ceramic element to support fast, reliable response times.
- Aluminum oxide trap layer: DENSO's design helps protect the ceramic element from silicone and lead poisoning.
- Direct-fit build: threaded mount, male connector, 0.708 in thread diameter, and a 31.1 in wiring harness.
Manufactured and tested to strict OE standards for exact replacement and a first-time fit. Made in Japan. If a failed downstream oxygen sensor is the cause of your check-engine light or converter-efficiency code, this replaces it; diagnose the cause before ordering.
Interchange: 213-4292 · 2134292 · 18011 · 18013 · ES20372 · 88975493 · 24841 · 8946502330 · 8946512840 · 250-24188 · 25024188 · 350-34282 · 35034282
Manufacturer part number 234-4305 (also 2344305).
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
Which vehicles does the DENSO 234-4305 fit?
It is a direct-fit replacement for the 2009-2010 Pontiac Vibe, 2009-2013 Toyota Corolla, and 2009-2014 Toyota Matrix, all with the L4-1.8L engine. See the Buyer's Guide tab to confirm your vehicle.
What position is this oxygen sensor?
This is a downstream sensor, mounted after the catalytic converter. It reads exhaust oxygen content so the ECU can monitor converter operation.
Is this a heated oxygen sensor?
Yes. It is a heated, narrow-band 4-wire sensor with a male connector, threaded mount, and a 31.1 in wiring harness.
What does a downstream oxygen sensor do?
It measures the oxygen in the exhaust after the catalytic converter, giving the ECU the feedback it needs to monitor converter efficiency and support fuel-trim management.
What are signs this sensor may need replacing?
A check-engine light, a converter-efficiency trouble code, or erratic fuel trim can be signs. These symptoms have other causes, so diagnose before replacing.
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