---
product_id: 32590054
title: "4721 Mass Air Flow Sensor Cleaner - 10 oz."
brand: "johnsen's"
price: "€ 39.12"
currency: EUR
in_stock: true
reviews_count: 8
category: "Johnsen's"
url: https://www.desertcart.gr/products/32590054-4721-mass-air-flow-sensor-cleaner-10-oz
store_origin: GR
region: Greece
---

# 10 oz precision spray fast-evaporating formula Made in USA quality 4721 Mass Air Flow Sensor Cleaner - 10 oz.

**Brand:** johnsen's
**Price:** € 39.12
**Availability:** ✅ In Stock

## Summary

> ⚡ Clean Sensors, Clear Codes, Confident Drives!

## Quick Answers

- **What is this?** 4721 Mass Air Flow Sensor Cleaner - 10 oz. by johnsen's
- **How much does it cost?** € 39.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/32590054-4721-mass-air-flow-sensor-cleaner-10-oz)

## Best For

- johnsen's enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Pros:** Highly rated with 4.6 stars from nearly 700 users who swear by its reliability.
- • **Revive Your Ride:** Effectively cleans MAF sensors to eliminate check engine lights and improve engine performance.
- • **Quick-Dry Formula:** Evaporates rapidly to prevent residue buildup and ensure sensor accuracy.
- • **Compact & Convenient:** 10 oz bottle fits easily in your toolkit for on-the-go maintenance.
- • **Cost-Effective Clean:** Delivers professional-grade cleaning power at a fraction of the price of premium brands.

## Overview

Johnsen's 4721 Mass Air Flow Sensor Cleaner is a 10 oz automotive accessory designed to clean MAF sensors efficiently. Made in the USA, it features a fast-evaporating formula that helps eliminate engine error codes and improve vehicle performance. With a strong 4.6-star rating from 696 reviews, it offers a cost-effective alternative to premium brands, making it a must-have for proactive car care.

## Description

JOHNSEN'S MASS AIR FLOW SENSOR CLEANER 10 OZ

Review: try this before buying parts - bought product in hopes of eliminating troublesome check engine light...cleaned contacts and works perfectly...exactly as described
Review: CRC, ya' done got too 'spensive! - I've been using CRC MAF cleaner for years, but they've gotten a little proud of the price, so I decided to give this stuff a try. Honestly, seems to work exactly the same for less money. It cleans well and evaporates quickly. I've not had any error codes using it, so all things considered, this product is a better value than ol' standby.

## Features

- Package Dimensions: 6.604 cms (L) x 6.858 cms (W) x 6.604 cms (H)
- Product Type: Auto Accessory
- Package Quantity: 1
- Country Of Origin: United States

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00C872M5O |
| Best Sellers Rank | #35,755 in Automotive ( See Top 100 in Automotive ) #188 in Engine & Parts Fluid Cleaners #2,752 in Car Care |
| Brand | Johnsen's |
| Brand Name | Johnsen's |
| Customer Reviews | 4.6 out of 5 stars 696 Reviews |
| Global Trade Identification Number | 00039101006147 |
| Item Dimensions W x H | 2.7"W x 2.6"H |
| Item Weight | 10 Ounces |
| Manufacturer | Johnsen's |
| Manufacturer Part Number | 4721 |
| Model Number | 4721 |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Product Dimensions | 2.7"W x 2.6"H |
| UPC | 039101006147 |
| Unit Count | 10.0 Ounce |
| Volume | 10 Fluid Ounces |
| Warranty Description | check with manufacturer Regulararding warranty and support issues. |

## Product Details

- **Brand:** Johnsen's
- **Global Trade Identification Number:** 00039101006147
- **Item Weight:** 10 Ounces
- **Manufacturer:** Johnsen's
- **Product Dimensions:** 2.7"W x 2.6"H

## Images

![4721 Mass Air Flow Sensor Cleaner - 10 oz. - Image 1](https://m.media-amazon.com/images/I/71P9HL7lO0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ try this before buying parts
*by I***C on December 1, 2025*

bought product in hopes of eliminating troublesome check engine light...cleaned contacts and works perfectly...exactly as described

### ⭐⭐⭐⭐⭐ CRC, ya' done got too 'spensive!
*by C***V on April 13, 2024*

I've been using CRC MAF cleaner for years, but they've gotten a little proud of the price, so I decided to give this stuff a try. Honestly, seems to work exactly the same for less money. It cleans well and evaporates quickly. I've not had any error codes using it, so all things considered, this product is a better value than ol' standby.

### ⭐⭐⭐⭐⭐ As described
*by E***T on July 7, 2026*

As described

## Frequently Bought Together

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---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-07-15*