---
product_id: 260589489
title: "234-4018 Oxygen Sensor"
brand: "denso"
price: "€ 89.29"
currency: EUR
in_stock: true
reviews_count: 5
category: "Denso"
url: https://www.desertcart.it/products/260589489-234-4018-oxygen-sensor
store_origin: IT
region: Italy
---

# Boosts fuel efficiency by up to 15% Plug-and-play installation in under 15 minutes OE-grade durability with advanced contamination protection 234-4018 Oxygen Sensor

**Brand:** denso
**Price:** € 89.29
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 234-4018 Oxygen Sensor by denso
- **How much does it cost?** € 89.29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/260589489-234-4018-oxygen-sensor)

## 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

- • **Trusted by Thousands:** 4.6-star rating from 850+ users confirms reliable performance and check engine light fixes
- • **Wide Vehicle Compatibility:** Fits 1996-2003 GM models including Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac
- • **Fuel Efficiency Game-Changer:** Optimizes air-fuel mixture to reduce consumption and emissions
- • **Advanced Contamination Shield:** Exclusive aluminum oxide trap layer protects sensor longevity
- • **Precision Engineered for Perfect Fit:** Exact OE replacement ensures first-time fit and hassle-free installation

## Overview

The Denso 234-4018 Oxygen Sensor is a high-quality, OE-standard replacement part designed for a broad range of GM vehicles from 1996 to 2003. Featuring advanced contamination protection and precision manufacturing, it ensures improved fuel efficiency, reduced emissions, and a perfect fit for easy installation. Trusted by thousands with a 4.6-star rating, it’s the smart upgrade to keep your engine running clean and your check engine light off.

## Description

Denso part number 234-4018 is a replacement oxygen (O2) sensor for 1997-2000 Buick Century, 1997-2003 Buick LeSabre, 1997-2003 Buick Park Avenue, 1997-2003 Buick Regal, 1997-1999 Buick Riviera, 1997-1998 Buick Skylark, 1996-1999 Cadillac DeVille, 1996-2000 Cadillac Eldorado, 1999-2000 & 2002 Cadillac Escalade, 2002 Cadillac Escalade EXT, 1996-2000 Cadillac Seville, 1996-1997 Chevrolet Astro, 2002 Chevrolet Avalanche 1500, 1996-1999 Chevrolet C1500, 1996-1999 Chevrolet C1500 Suburban, 1996-2000 Chevrolet C2500, 1996-1999 Chevrolet C2500 Suburban, 1996-2000 Chevrolet C3500, 1997-2002 Chevrolet Camaro, 1996-2002 Chevrolet Express 1500, 1996-2002 Chevrolet Express 2500, 1996-2002 Chevrolet Express 3500, 1996 Chevrolet G30, 2000-2003 Chevrolet Impala, 1996-1999 Chevrolet K1500, 1996-1999 Chevrolet K1500 Suburban, 1996-2000 Chevrolet K2500, 1996-1999 Chevrolet K2500 Suburban, 1996-2000 Chevrolet K3500, 1997-2001 Chevrolet Lumina, 1997-2000 Chevrolet Malibu, 1997-2003 Chevrolet Monte Carlo, 1996-1999 Chevrolet P30, 1999-2002 Chevrolet Silverado 1500, 2001 Chevrolet Silverado 1500 HD, 1999-2001 Chevrolet Silverado 2500, 2001 Chevrolet Silverado 2500 HD, 2001 Chevrolet Silverado 3500, 2000-2002 Chevrolet Suburban 1500, 2000-2001 Chevrolet Suburban 2500, 1996-2002 Chevrolet Tahoe, 1997-2000 Chevrolet Venture, 1996-1999 GMC C1500, 1996-1999 GMC C1500 Suburban, 1996-2000 GMC C2500, 1996-1999 GMC C2500 Suburban, 1996-2000 GMC C3500, 1996 GMC G3500, 1996-1999 GMC K1500, 1996-1999 GMC K1500 Suburban, 1996-2000 GMC K2500, 1996-1999 GMC K2500 Suburban, 1996-2000 GMC K3500, 1996-1999 GMC P3500, 1996-1997 GMC Safari, 1996-2002 GMC Savana 1500, 1996-2002 GMC Savana 2500, 1996-2002 GMC Savana 3500, 1999-2002 GMC Sierra 1500, 2001 GMC Sierra 1500 HD, 1999-2001 GMC Sierra 2500, 2001 GMC Sierra 2500 HD, 2001 GMC Sierra 3500, 1996-2002 GMC Yukon, 2000-2002 GMC Yukon XL 1500, 2000-2001 GMC Yukon XL 2500, 1997-1999 Oldsmobile 88, 1997-1998 Oldsmobile Achieva, 1999-2000 Oldsmobile Alero, 1996-1999 Oldsmobile Aurora, 1997-1999 Oldsmobile Cutlass, 1997 Oldsmobile Cutlass Supreme, 1998-1999 Oldsmobile Intrigue, 1997-1999 Oldsmobile LSS, 1997-1998 Oldsmobile Regency, 1997-2000 Oldsmobile Silhouette, 1997-2003 Pontiac Bonneville, 1997-2002 Pontiac Firebird, 1997-2000 Pontiac Grand Am, 1997-2003 Pontiac Grand Prix, 1999-2000 Pontiac Montana, and 1997-1999 Pontiac Trans Sport vehicles.Denso Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision built for exact replacement, and a first time fit. This innovative line features Denso's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. Denso gives you the right part and the right fit, the first time.

Review: works great, codes are no longer popping up
Review: Great fit for my truck, easy to install, and turned my check engine light off since installing.

## Features

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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000C5WCOA |
| Best Sellers Rank | #13,790 in Automotive ( See Top 100 in Automotive ) #27 in Car Exhaust Oxygen Sensors |
| Brand | Denso |
| Customer Reviews | 4.6 4.6 out of 5 stars (853) |
| Date First Available | 8 August 2012 |
| Item Weight | 113 g |
| Item model number | 234-4018 |
| Manufacturer | Denso |
| Manufacturer Part Number | 234-4018 |
| Model | OXYGEN SENSOR |
| OEM Part Number | 234-4018 |
| Product Dimensions | 14.61 x 5.56 x 4.78 cm; 113.4 g |

## Product Details

- **Brand:** Denso
- **Item dimensions L x W x H:** 14.6 x 5.6 x 4.8 centimeters
- **Item weight:** 0.25 Pounds
- **Material:** Zirconium Stainless Steel
- **Style:** Replacement Part

## Images

![234-4018 Oxygen Sensor - 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***A on 4 November 2022*

works great, codes are no longer popping up

### ⭐⭐⭐⭐⭐ Review
*by A***E on 14 October 2025*

Great fit for my truck, easy to install, and turned my check engine light off since installing.

### ⭐⭐⭐⭐⭐ Review
*by A***L on 29 September 2021*

Tenía tiempo con el código del sensor de oxigeno del banco 1 activo. Vi la pieza en Amazon en varias marcas y escogí la marca denso por no ser tan mala. Ya tengo un mes que lo instale y se notó mucho el cambio en el rendimiento del carro. Mi vehículo es un pontiac Grand am 2001 3.4

## 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 Italy*
*Store origin: IT*
*Last updated: 2026-03-20*