Denso Oxygen Sensor 234-4256 front view improves engine efficiency and fuel control
Denso 234-4256 wiring harness rear view with 4-wire design for reliable installation
Denso Oxygen Sensor 234-4256 front view improves engine efficiency and fuel control
Denso 234-4256 wiring harness rear view with 4-wire design for reliable installation

Denso Oxygen Sensor 234-4256 – OE Replacement for GM Trucks & SUVs

Product overview The Denso 234-4256 oxygen sensor is a precise narrow‑band OE replacement designed to slip into...
Vendor: Denso
Availability: In stock
£61.62
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Denso Oxygen Sensor 234-4256 front view improves engine efficiency and fuel control

Denso Oxygen Sensor 234-4256 – OE Replacement for GM Trucks & SUVs

£61.62
Denso Oxygen Sensor 234-4256 front view improves engine efficiency and fuel control
Denso 234-4256 wiring harness rear view with 4-wire design for reliable installation

Denso Oxygen Sensor 234-4256 – OE Replacement for GM Trucks & SUVs

£61.62
Description
Description
x

Product overview

The Denso 234-4256 oxygen sensor is a precise narrow‑band OE replacement designed to slip into a wide range of GM vehicles. It features a 4‑wire wiring harness measuring 14.80 inches, enabling smooth routing within your exhaust system and a straightforward installation for many GM platforms.

With an aluminum oxide trap layer, the sensor is built to resist common contaminants that can affect measurement stability. This protection helps maintain dependable data flow to the engine control unit, supporting consistent engine timing and mixture readings over time. While results can vary with vehicle condition and driving style, these design choices aim to help keep your exhaust monitoring aligned with everyday driving needs.

Key benefits

  • Efficient fuel consumption potential through stable sensor readings
  • Increases engine performance and throttle response due to precise exhaust data
  • Aluminum oxide trap layer protects the ceramic element from silicone and lead poisoning
  • OE-grade replacement designed for a first-time fit
  • 14.80 inch wiring harness for flexible installation
  • Model: 234-4256, ensuring clear part identification

Key specifications

  • Package dimensions: 4.826 L × 5.08 H × 15.24 W cm
  • Model: 234-4256
  • Wiring: 4-wire harness

Designed as a reliable replacement part, this sensor aims to support consistent exhaust readings and smoother daily driving. For best results, consider professional installation to ensure proper fitment and electrical connections.

FAQ

Q: Which vehicles are compatible with the Denso 234-4256 oxygen sensor?

A: Fits a broad range of GM trucks and SUVs from 2008–2017, including Cadillac Escalade family, Chevrolet Silverado, Camaro, Corvette, Suburban, Tahoe, and GMC Sierra models.

Q: What are the notable benefits of this Denso sensor?

A: OE-grade replacement with an aluminum oxide trap layer helps protect the sensor element, supporting stable readings that may aid fuel efficiency and throttle response.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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