---
product_id: 32590054
title: "Johnsen's 4721 Mass Air Flow Sensor Cleaner - 10 oz."
brand: "johnsen's"
price: "€ 34.47"
currency: EUR
in_stock: true
reviews_count: 8
category: "Johnsen's"
url: https://www.desertcart.sk/products/32590054-johnsens-4721-mass-air-flow-sensor-cleaner-10-oz
store_origin: SK
region: Slovakia
---

# 10 oz precision spray Engineered for MAF sensors Made in USA quality Johnsen's 4721 Mass Air Flow Sensor Cleaner - 10 oz.

**Brand:** johnsen's
**Price:** € 34.47
**Availability:** ✅ In Stock

## Summary

> ⚡ Clean your airflow, boost your drive!

## Quick Answers

- **What is this?** Johnsen's 4721 Mass Air Flow Sensor Cleaner - 10 oz. by johnsen's
- **How much does it cost?** € 34.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/32590054-johnsens-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 Thousands:** 4.5-star rating from 693 reviews proves reliability
- • **Compact & Easy to Use:** Perfect 10 oz size for quick, mess-free application
- • **Proudly Made in the USA:** Quality manufacturing you can count on
- • **Versatile Multi-Use Cleaner:** Trusted for cars, lawn mowers, and snow blowers alike
- • **Restore Peak Engine Performance:** Eliminate check engine light triggers with a precise sensor clean

## Overview

Johnsen's 4721 Mass Air Flow Sensor Cleaner is a 10 oz automotive-grade spray designed to safely and effectively clean MAF sensors, improving engine performance and reducing check engine light errors. Made in the USA and highly rated by users, it’s a versatile solution trusted for various engine maintenance needs.

## 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: Spray - Love this stuff use it on lawn mower and snow blowers it works real good.

## 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 | #45,976 in Automotive ( See Top 100 in Automotive ) #202 in Engine & Parts Fluid Cleaners #3,333 in Car Care |
| Brand | Johnsen's |
| Brand Name | Johnsen's |
| Customer Reviews | 4.5 out of 5 stars 693 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 |
| 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

![Johnsen's 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

### ⭐⭐⭐⭐⭐ Spray
*by T***R on February 5, 2025*

Love this stuff use it on lawn mower and snow blowers it works real good.

### ⭐⭐⭐⭐⭐ 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.

## Frequently Bought Together

- Johnsen's 4721 Mass Air Flow Sensor Cleaner - 10 oz.
- CRC 05078 Throttle Body and Air-Intake Cleaner - 12 Wt Oz.
- Gumout 800002231 Carb and Choke Cleaner Jet Spray - 14 oz.

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**Shop now:** [https://www.desertcart.sk/products/32590054-johnsens-4721-mass-air-flow-sensor-cleaner-10-oz](https://www.desertcart.sk/products/32590054-johnsens-4721-mass-air-flow-sensor-cleaner-10-oz)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-22*