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The DENSO 234-4800 is a direct-fit oxygen sensor for the 2003–2004 Toyota Corolla, Matrix and Pontiac Vibe. It is built to the same standards DENSO uses for original-equipment sensors, with an aluminum oxide trap layer that shields the ceramic element from silicone and lead contamination. That makes it a strong choice for owners who want an OE-style replacement rather than a universal splice-in sensor. It suits DIYers and shops doing a first-time-fit repair on these specific models.
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Lowest price we've seen: $9.49 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.
The DENSO 234-4800 is an oxygen sensor made as an exact-replacement part. DENSO says it is manufactured and tested to OE standards, with each component precision built for a first-time fit.
The sensor has an aluminum oxide trap layer that protects the ceramic element from silicone and lead poisoning. This is intended to support engine performance, fuel efficiency and longevity.
