---
product_id: 7701833
title: "Denso Oxygen (O2) Sensor - 234-4018 (Fits Select Models and Years of Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac Vehicles)"
brand: "denso"
price: "€ 70.19"
currency: EUR
in_stock: true
url: https://www.desertcart.com.cy/products/7701833-denso-oxygen-o2-sensor-234-4018-fits-select-models-years
store_origin: CY
region: Cyprus
---

# Boosts fuel efficiency by up to 15% Withstands up to 1000°F for extreme durability Precision OE-standard fit for hassle-free install Denso Oxygen (O2) Sensor - 234-4018 (Fits Select Models and Years of Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac Vehicles)

**Brand:** denso
**Price:** € 70.19
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your ride’s brain with precision sensing power!

## Quick Answers

- **What is this?** Denso Oxygen (O2) Sensor - 234-4018 (Fits Select Models and Years of Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac Vehicles) by denso
- **How much does it cost?** € 70.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/7701833-denso-oxygen-o2-sensor-234-4018-fits-select-models-years)

## Best For

- denso enthusiasts

## Why This Product

- Trusted denso brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Endure:** High-temp stainless steel and zirconium resist wear and poisoning
- • **Silicone Shield Tech:** Exclusive aluminum oxide trap protects sensor longevity
- • **Plug & Play Precision:** Engineered for exact OE fit—install with zero guesswork
- • **Fuel-Savvy Performance:** Optimizes air-fuel mix to slash fuel costs and emissions
- • **Wide Vehicle Compatibility:** Fits 1996-2003 GM models—your reliable upgrade for multiple rides

## Overview

The Denso 234-4018 Oxygen Sensor is a high-quality, OE-standard replacement part designed for select 1996-2003 Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac vehicles. Crafted from durable stainless steel and zirconium, it delivers precise air-fuel mixture readings to improve fuel efficiency and reduce emissions. Featuring Denso’s exclusive aluminum oxide trap, it resists sensor poisoning and withstands temperatures up to 1000°F, ensuring long-lasting performance and a perfect first-time fit.

## Description

Denso Oxygen (O2) Sensor - 234-4018 (Fits Select Models and Years of Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac Vehicles)

## Features

- Efficient Fuel Consumption
- Easy installation
- Constructed from high quality material
- Manufactured with precision to meet OE standards

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Denso |
| Item dimensions L x W x H | 5.75 x 2.19 x 1.88 inches |
| Material | Stainless Steel, Zirconium |
| Item Weight | 4 ounces |
| Style | Replacement Part |
| Measurement Accuracy | ±1.5% |
| Mounting Type | Surface Mount |
| Output Type | electrical signal |
| Sensing Distance | 5 Centimeters |
| Specific Uses For Product | Replacement Oxygen (O2) Sensor |
| Upper Temperature Rating | 1000 Degrees Fahrenheit |
| UPC | 042511140189 |
| Global Trade Identification Number | 00042511140189 |
| Manufacturer | Denso |
| Model | Oxygen Sensor |
| Product Dimensions | 5.75 x 2.19 x 1.88 inches |
| Item model number | 234-4018 |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | 234-4018 |
| OEM Part Number | 234-4018 |

## Product Details

- **Brand:** Denso
- **Item dimensions L x W x H:** 5.75 x 2.19 x 1.88 inches
- **Material:** Stainless Steel, Zirconium
- **Item Weight:** 4 ounces
- **Style:** Replacement Part

## Images

![Denso Oxygen (O2) Sensor - 234-4018 (Fits Select Models and Years of Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac Vehicles) - Image 1](https://m.media-amazon.com/images/I/51ciW5Dg2QL.jpg)

## Questions & Answers

**Q: I bought o2 sensor the end is wrong has male end on it ! the up stream on a 1999 GMC suburban !**
A: so what is your question???

**Q: Does it have a 4 flat or 4 square plug?**
A: Hi Justin it is a 4 square plug.  Here is the picture from the Densoautoparts website:http://densoautoparts.com/find-my-part/vehicle-selection.  You can put your car's (or truck) year. make,ect. and get the sensor's picture from clicking a  camera symbol.  Hope this helps.  I am a big fan of denso (used to be nippondenso) parts.  Quality stuff and not too pricey.

**Q: 03 Chevy Monte Carlo downstream 3800 will it fit**
A: It fit my 1999 Pontiac Bonneville with the 3800,works great

**Q: Does the sensor come with wiring harness and plug**
A: No. Wiring the old connector was not difficult, but you must be careful choosing the right wires as colors were not the same as my 2003 Buick. More importantly, the output didn't match and I replaced it with OEM ACDelco that worked perfectly.

## Frequently Bought Together

- Denso 234-4018 Oxygen Sensor for GM Downstream with 4-Wire Female Plug
- Denso 234-4012 Oxygen Sensor, Original Version
- Offset Oxygen Sensor Socket, 3/8-Inch Drive, 7/8-Inch (22mm), Wire Gate Accesses Sensor from Side, Preventing Damage to Wires, Universal for Most Cars

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-17*