---
product_id: 2441801
title: "234-9021 Upstream Heated Oxygen Sensor with 4-Wire Plug and 14.17†Harness"
brand: "denso"
price: "S/.953"
currency: PEN
in_stock: true
category: "Denso"
url: https://www.desertcart.pe/products/2441801-234-9021-upstream-heated-oxygen-sensor-with-4-wire-plug
store_origin: PE
region: Peru
---

# 4-wire plug with 14.17-inch harness Heated sensor for fast response Wide-band zirconia element for precise AFR 234-9021 Upstream Heated Oxygen Sensor with 4-Wire Plug and 14.17†Harness

**Brand:** denso
**Price:** S/.953
**Availability:** ✅ In Stock

## Summary

> 🚗 Tune your ride with precision – feel the power of perfect air/fuel balance!

## Quick Answers

- **What is this?** 234-9021 Upstream Heated Oxygen Sensor with 4-Wire Plug and 14.17†Harness by denso
- **How much does it cost?** S/.953 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/2441801-234-9021-upstream-heated-oxygen-sensor-with-4-wire-plug)

## 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

- • **OE Standard Quality:** Manufactured to strict OEM specs for reliable, first-time fit and performance.
- • **Plug & Play Harness:** 14.17-inch 4-wire plug guarantees seamless installation and perfect fit.
- • **Rapid Oxygen Detection:** Quick-response planar zirconia element optimizes engine performance instantly.
- • **Optimized Air/Fuel Mapping:** Maintains ideal 12:1 to 19:1 AFR for fuel efficiency and reduced emissions.
- • **Precision Platinum Electrodes:** Tarnish-proof design ensures long-lasting accuracy and durability.

## Overview

The Denso 234-9021 Upstream Heated Oxygen Sensor features a durable platinum electrode and a fast-response zirconia element, delivering precise air/fuel ratio measurements for select 2000-2004 Toyota and Lexus models. With a 4-wire plug and 14.17-inch harness, it ensures easy installation and optimal engine performance, fuel efficiency, and emissions control—all built to meet strict OEM standards.

## Description

Denso part number 234-9021 is a replacement air/fuel ratio sensor for 2000-2004 Toyota Avalon, 2001 Toyota Camry, 2001-2003 Toyota Sienna, 2001-2003 Toyota Solara, and 2000-2001 Lexus ES300 vehicles.Denso Air/Fuel Ratio 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. The superior design of Denso Air/Fuel Ratio Sensors maximizes engine performance and fuel efficiency while reducing fuel consumption and harmful emissions. Denso Air/Fuel Ratio Sensors increase performance by mapping air/fuel ratios throughout the RPM range. They also reduce emissions by keeping the air-fuel mixture at an optimum ratio. Optimal air/fuel ratios reduce fuel consumption and maximize catalytic converter life. Denso gives you the right part and the right fit, the first time.

## Features

- Denso wide-band Air/Fuel Ratio Sensor with 4 wire 14.17 inch long wiring harness
- Part Number: 234-9021
- Application: Toyota: (2000-2004 Avalon, 2001 Camry, 2001-2003 Sienna, 2001-2003 Solara) / Lexus: (2000-2001 ES300)
- Parts Interchange: 8946733030, 8946741030, 8946741040
- Tarnish-proof platinum electrodes provides longer life and maintains accuracy
- Quick-response planar zirconia element can quickly detect oxygen concentration
- Measures Air/Fuel ratios from approximately 12:1 to 19:1
- Package Quantity: 1
- Item Dimensions: 5.75 x 2.19 x 1.88 Inches
- Item Weight: 0.25 Pounds

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000C5YD42 |
| Best Sellers Rank | #219,895 in Automotive ( See Top 100 in Automotive ) #787 in Automotive Replacement Oxygen Sensors |
| Brand Name | Denso |
| Customer Reviews | 4.5 4.5 out of 5 stars (981) |
| Global Trade Identification Number | 00042511110618 |
| Included Components | Air/Fuel Ratio Sensor |
| Item Dimensions | 5.75 x 2.19 x 1.88 inches |
| Item Type Name | Oxygen Sensor |
| Item Weight | 4 ounces |
| Manufacturer | Denso |
| Material Type | Zirconia |
| Measurement Accuracy | High |
| Measuring Range | 0-20 AFR |
| Model | 234-9021 |
| Mounting Type | Threaded Mount |
| Number of Items | 1 |
| Number of Packs | 1 |
| Output Type | Electronic |
| Part Number | 234-9021 |
| Specific Uses For Product | Replacement Air/Fuel Ratio Sensor |
| Style Name | Replacement Part |
| UPC | 042511110618 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 1500 °F |
| Warranty Description | Includes manufacturer provided warranty |

## Product Details

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

## Images

![234-9021 Upstream Heated Oxygen Sensor with 4-Wire Plug and 14.17†Harness - Image 1](https://m.media-amazon.com/images/I/41vvMIJTTrL.jpg)

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-10-31*