---
product_id: 2282606
title: "Denso Oxygen (O2) Sensor - 234-4621 (Fits Select Years of Acura: CL/EL/NSX/TL and Honda: Accord/Civic/Prelude Vehicles)"
brand: "denso"
price: "€ 65.25"
currency: EUR
in_stock: true
reviews_count: 13
category: "Denso"
url: https://www.desertcart.nl/products/2282606-denso-oxygen-o2-sensor-234-4621-fits-select-years-acura
store_origin: NL
region: Netherlands
---

# High-temp resistance up to 1562°F Exact OE fit for Acura & Honda models Corrosion-resistant stainless steel build Denso Oxygen (O2) Sensor - 234-4621 (Fits Select Years of Acura: CL/EL/NSX/TL and Honda: Accord/Civic/Prelude Vehicles)

**Brand:** denso
**Price:** € 65.25
**Availability:** ✅ In Stock

## Summary

> 🚗 Upgrade your ride’s brain with precision sensing — because your engine deserves the best!

## Quick Answers

- **What is this?** Denso Oxygen (O2) Sensor - 234-4621 (Fits Select Years of Acura: CL/EL/NSX/TL and Honda: Accord/Civic/Prelude Vehicles) by denso
- **How much does it cost?** € 65.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/2282606-denso-oxygen-o2-sensor-234-4621-fits-select-years-acura)

## 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

- • **Precision OE Replacement:** Engineered for a perfect first-time fit on select Acura & Honda vehicles, eliminating guesswork and ensuring seamless installation.
- • **Plug-and-Play Convenience:** 4-wire 20.28-inch harness designed for straightforward installation, compatible with factory connectors to save time and hassle.
- • **Durability Meets Performance:** Crafted with corrosion-resistant stainless steel and a refined zirconia element for long-lasting, reliable sensor response under extreme conditions.
- • **Contaminant Shield Technology:** Exclusive PTFE filter and aluminum oxide trap layer protect against silicone and lead poisoning, boosting engine efficiency and fuel economy.
- • **Trusted by Professionals & DIYers:** Backed by rigorous OE standards and glowing user reviews, this sensor keeps your vehicle’s emissions in check and your check engine light off.

## Overview

The Denso 234-4621 Oxygen Sensor is a direct OE replacement part designed for select Acura and Honda models from the 1990s to early 2000s. Featuring corrosion-resistant stainless steel construction, a refined zirconia sensing element, and advanced contaminant protection, it delivers accurate air-fuel ratio readings to optimize engine performance and fuel efficiency. With a 4-wire 20.28-inch harness and plug-and-play design, it ensures hassle-free installation and long-term durability under high-temperature conditions up to 1562°F.

## Description

Denso part number 234-4621 is a replacement oxygen (O2) sensor for 2001-2003 Acura CL, 2001-2003 Acura EL, 2000-2005 Acura NSX, 1999-2003 Acura TL, 1990-1993 & 1998-2002 Honda Accord, 2001-2003 Honda Civic, and 1997-2001 Honda Prelude 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 for a 2001 Honda Accord, V4 EX 2.3 ULEV, F23A4 Engine - Wow, just wow. This product just saved my car. First off, I am a 24 year old woman who know absolutely nothing about cars. But I was pretty adamant about fixing my own vehicle. Especially knowing that I was not going to pay someone else to do an easy job. After countless research I came across this product on desertcart. This Denso 234-4621 Oxygen Sensor is described to be a exact fit on my car. I've come to learn that it's best to get the exact fit rather than universal oxygen sensors. My car is a 2001 Honda Accord, V4 EX 2.3 F23A4 Engine . It is ULEV which stands for Ultra-Low Emission Vehicle and means that the car emit cleaner emissions. My car was diagnosed with a Check Engine Light unfortunately after getting a new transmission. Using my Veepeek OBD2 Code Reader, I received the code of P0141 "O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)." If you're interested in the code reader, I will link it below. My 2001 Honda Accord has TWO sensors. I made the mistake of not realizing what this code meant. The code was for the oxygen sensor located UNDERNEATH my car where the catalytic converter was, and not the one located underneath my HOOD in front of the catalytic converter. If you're interested in the oxygen sensor underneath the hood known as an "upstream" sensor, you are looking for a Denso 234-9014 Air Fuel Ratio Sensor which you can also purchase on desertcart. So just to make sure this makes sense, Denso 234-4621, a downstream sensor (the product being reviewed) is what you're looking for if you're receiving the P0141 Code and it is UNDERNEATH your car where the catalytic converter is located. The Denso 234-9014 is an upstream sensor that is located in front of your catalytic converter underneath your HOOD. Even though I was mistaken on which sensors I needed, turned out I still needed a new Denso 234-9014 upstream sensor due to mine being oxidized after pulling it out. Anyways, I bought a 2 different things to work on my car: Stanley 91-929 3/8-Inch Drive Pear Head Quick Release Ratchet & RamPro 3 Piece Oxygen Sensor Kit. I will link the products below. Anyways, you want to go underneath your car to where your catalytic converter is. Using the RampPro Oxygen Sensor Kit, you insert the oxygen sensor socket where your sensors are in the catalytic converter, and use the 3/8" ratchet to tug and release the bad sensor. Just replace it with the new sensor and screw it on tight with the ratchet. And wolah! These two products worked perfect on my vehicle, and after replacing both of my oxygen sensors, I used my Veekpeek Code reader to erase the code! My car is now Check Engine Light free! Please do your research before purchasing any of these products mentioned in the review. And safety first! Please don't try to attempt to work on your vehicle without knowing the risks. This review is solely meant to indicate that this is the proper sensor for your vehicle if it is the correct year, make, model, engine, and ULEV. I hope this review helps someone out there. I will link the products I purchased to erase my check engine light for good below. Veepeek OB2 Code Reader https://www.desertcart.com/gp/product/B01I8UJ0V8/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1 Denso 234-9014 Air Fuel Ratio Sensor (Upstream) https://www.desertcart.com/gp/product/B000C5UFW6/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1 Stanley 91-929 3/8-Inch Drive Pear Head Quick Release Ratchet https://www.desertcart.com/gp/product/B000NJ63UY/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 RamPro 3 Piece 3/8 & ½” Drive O2 Oxygen Sensor Wrench Socket Tool Set – 1 Vacuum Switch Socket & 2 Puller Sockets Kit – Universal 7/8” / 22mm Professional Grade Removal Tool for Cars & Automotive https://www.desertcart.com/gp/product/B01IAH7MSC/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
Review: Perfect oem fit - works perfect and fits/ looks exactly like oem on my H22A4 1998 Honda Prelude. plugs straight into the stock plug and is a 21 mm socket i believe

## Features

- Denso narrow-band Oxygen (O2) Sensor with 4 wire 20.28 inch long wiring harness
- Part Number: 234-4621
- Application: Acura: (2001-2003 CL, 2001-2003 EL, 2000-2005 NSX, 1999-2003 TL) / Honda: (1990-1993 & 1998-2002 Accord, 2001-2003 Civic, 1997-2001 Prelude)
- Parts Interchange: 36531PT3A12, 36532P8CL21, 36532P8DJ01, 36531PT3A05, 36531P5P004, 36532PAAA02, 36531P5P014, 36532PAAL02, 36532PAAL01, 36532PAAA01, 36532P8CL02, 36532PLRA01, 36542PR7A51
- Corrosion-resistant stainless steel construction
- PTFE filter blocks efficiency-robbing contaminants
- Refined zirconia element improves sensor response
- Package Quantity: 1
- Item Dimensions: 5.75 x 2.19 x 1.88 Inches
- Item Weight: 0.25 Pounds

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000C5YCUM |
| Best Sellers Rank | #70,332 in Automotive ( See Top 100 in Automotive ) #143 in Automotive Replacement Oxygen Sensors |
| Brand | Denso |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,161) |
| Date First Available | January 2, 2007 |
| Exterior | Machined |
| Global Trade Identification Number | 00042511146211 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4 ounces |
| Item dimensions L x W x H | 5.75 x 2.19 x 1.88 inches |
| Item model number | 234-4621 |
| Manufacturer | Denso |
| Manufacturer Part Number | 234-4621 |
| Material | Stainless Steel, Zirconium |
| Measurement Accuracy | ±1% |
| Model | Oxygen Sensor |
| Mounting Type | Thread-In |
| OEM Part Number | 234-4621 |
| Output Type | Digital |
| Product Dimensions | 5.75 x 2.19 x 1.88 inches |
| Specific Uses For Product | Replacement Oxygen (O2) Sensor |
| Style | Replacement Part |
| UPC | 042511146211 |
| Upper Temperature Rating | 1562 Degrees Fahrenheit |

## Product Details

- **Brand:** Denso
- **Item Weight:** 0.25 Pounds
- **Item dimensions L x W x H:** 5.75 x 2.19 x 1.88 inches
- **Material:** Stainless Steel, Zirconium
- **Style:** Replacement Part

## Images

![Denso Oxygen (O2) Sensor - 234-4621 (Fits Select Years of Acura: CL/EL/NSX/TL and Honda: Accord/Civic/Prelude Vehicles) - Image 1](https://m.media-amazon.com/images/I/41Vr0W9V49L.jpg)

## Questions & Answers

**Q: Is this the downstream O2 sensor for a 2002 accord 4cyl SE?**
A: Yes, this is the correct downstream sensor that is located inside the catalytic converter on your vehicle.Denso has a parts fitment website that verifies the correct part number 234-4621:http://densoautoparts.com/find-my-part/vehicle-selection

**Q: Work for honda cívic 2003?**
A: Yes I installed on my 03 Honda civic ex coupe.

**Q: Is it fit to Lexus2000. RX300**
A: Hi no this does not fit your vehicle you need to put your car details in where it says car garage in accounts then check which will fit

**Q: Will this work on 2002 honda crv 2.4 l engine?**
A: I used it for my 1999 Honda Accord 4cyl and it worked for my upper O2 replacement. It cleared an old code.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works for a 2001 Honda Accord, V4 EX 2.3 ULEV, F23A4 Engine
*by D***C on February 3, 2017*

Wow, just wow. This product just saved my car. First off, I am a 24 year old woman who know absolutely nothing about cars. But I was pretty adamant about fixing my own vehicle. Especially knowing that I was not going to pay someone else to do an easy job. After countless research I came across this product on Amazon. This Denso 234-4621 Oxygen Sensor is described to be a exact fit on my car. I've come to learn that it's best to get the exact fit rather than universal oxygen sensors. My car is a 2001 Honda Accord, V4 EX 2.3 F23A4 Engine . It is ULEV which stands for Ultra-Low Emission Vehicle and means that the car emit cleaner emissions. My car was diagnosed with a Check Engine Light unfortunately after getting a new transmission. Using my Veepeek OBD2 Code Reader, I received the code of P0141 "O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)." If you're interested in the code reader, I will link it below. My 2001 Honda Accord has TWO sensors. I made the mistake of not realizing what this code meant. The code was for the oxygen sensor located UNDERNEATH my car where the catalytic converter was, and not the one located underneath my HOOD in front of the catalytic converter. If you're interested in the oxygen sensor underneath the hood known as an "upstream" sensor, you are looking for a Denso 234-9014 Air Fuel Ratio Sensor which you can also purchase on Amazon. So just to make sure this makes sense, Denso 234-4621, a downstream sensor (the product being reviewed) is what you're looking for if you're receiving the P0141 Code and it is UNDERNEATH your car where the catalytic converter is located. The Denso 234-9014 is an upstream sensor that is located in front of your catalytic converter underneath your HOOD. Even though I was mistaken on which sensors I needed, turned out I still needed a new Denso 234-9014 upstream sensor due to mine being oxidized after pulling it out. Anyways, I bought a 2 different things to work on my car: Stanley 91-929 3/8-Inch Drive Pear Head Quick Release Ratchet & RamPro 3 Piece Oxygen Sensor Kit. I will link the products below. Anyways, you want to go underneath your car to where your catalytic converter is. Using the RampPro Oxygen Sensor Kit, you insert the oxygen sensor socket where your sensors are in the catalytic converter, and use the 3/8" ratchet to tug and release the bad sensor. Just replace it with the new sensor and screw it on tight with the ratchet. And wolah! These two products worked perfect on my vehicle, and after replacing both of my oxygen sensors, I used my Veekpeek Code reader to erase the code! My car is now Check Engine Light free! Please do your research before purchasing any of these products mentioned in the review. And safety first! Please don't try to attempt to work on your vehicle without knowing the risks. This review is solely meant to indicate that this is the proper sensor for your vehicle if it is the correct year, make, model, engine, and ULEV. I hope this review helps someone out there. I will link the products I purchased to erase my check engine light for good below. Veepeek OB2 Code Reader https://www.amazon.com/gp/product/B01I8UJ0V8/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1 Denso 234-9014 Air Fuel Ratio Sensor (Upstream) https://www.amazon.com/gp/product/B000C5UFW6/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1 Stanley 91-929 3/8-Inch Drive Pear Head Quick Release Ratchet https://www.amazon.com/gp/product/B000NJ63UY/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 RamPro 3 Piece 3/8 & ½” Drive O2 Oxygen Sensor Wrench Socket Tool Set – 1 Vacuum Switch Socket & 2 Puller Sockets Kit – Universal 7/8” / 22mm Professional Grade Removal Tool for Cars & Automotive https://www.amazon.com/gp/product/B01IAH7MSC/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

### ⭐⭐⭐⭐⭐ Perfect oem fit
*by G***N on November 14, 2025*

works perfect and fits/ looks exactly like oem on my H22A4 1998 Honda Prelude. plugs straight into the stock plug and is a 21 mm socket i believe

### ⭐⭐⭐⭐⭐ Denzo is the best.
*by J***2 on January 15, 2026*

I have bought and replaced my oxygen sensors a number of times and when I have to replace one I replace both at the same time. Having an OBD2 reader makes it convenient for me to read the codes and clear the codes. After I made the fix, when the code says one oxygen sensor is bad I always replace both of them at the same time and I always choose Denzo oxygen sensors they are OEM and happen to be the best oxygen sensors on the market bar none.

## Frequently Bought Together

- Denso 234-4621 Oxygen Sensor
- Denso 234-4727 Oxygen Sensor
- 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 Netherlands*
*Store origin: NL*
*Last updated: 2026-02-17*