---
product_id: 160375241
title: "Hitachi MAF0021 Mass Air Flow Sensor"
brand: "hitachi"
price: "¥52552"
currency: JPY
in_stock: true
reviews_count: 7
url: https://www.desertcart.jp/products/160375241-hitachi-maf0021-mass-air-flow-sensor
store_origin: JP
region: Japan
---

# Accurate Measurements Durable Design Precision Engineering Hitachi MAF0021 Mass Air Flow Sensor

**Brand:** hitachi
**Price:** ¥52552
**Availability:** ✅ In Stock

## Summary

> 🚗 Elevate Your Drive with Precision Performance!

## Quick Answers

- **What is this?** Hitachi MAF0021 Mass Air Flow Sensor by hitachi
- **How much does it cost?** ¥52552 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/160375241-hitachi-maf0021-mass-air-flow-sensor)

## Best For

- hitachi enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Features a contaminant bypass port for enhanced longevity.
- • **Trusted Brand:** Manufactured by Hitachi, a leader in automotive technology.
- • **Restore Your Ride:** Revitalize your vehicle's performance with this OEM part.
- • **Seamless Integration:** Flange mount design ensures easy installation.
- • **Precision Performance:** Engineered for accurate air flow measurements.

## Overview

The Hitachi MAF0021 Mass Air Flow Sensor is a high-quality OEM replacement part designed to restore your vehicle's original drivability. With precision-manufactured sensing elements, it ensures accurate air flow measurements while its built-in contaminant bypass port enhances reliability and longevity. Weighing just 0.89 pounds, this modern-style sensor is easy to install and meets OE performance standards, making it a trusted choice for automotive enthusiasts.

## Description

Hitachi’s Air Flow Sensors (MAFs) measure the amount and characteristics of air entering the engine. Hitachi uses precision elements and high-quality components for enhanced durability and accurate air flow measurements. Hitachi MAFs are 100% air flow tested for ideal performance and are calibrated for each application ensuring your vehicle meets the strict emission standards set by the manufacturer. Details such as a contaminant bypass port (when applicable) and protected circuitry providing a durable and reliable product approved by OE manufacturers makes Hitachi’s air flow sensors the premium choice.

## Features

- New orignial equipment part
- Restores original drivability characteristics
- Meets the OE performance and durability standards for this application
- Precision manufactured and assembled sensing elements for accurate air flow measurements
- Built in contaminant bypass port provides reliable operation and increases longevity

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Hitachi |
| Item Weight | 0.89 Pounds |
| Style | Modern |
| Mounting Type | Flange Mount |
| Specific Uses For Product | Air Flow Sensor |
| UPC | 840151070268 |
| Global Trade Identification Number | 00840151070268 |
| Manufacturer | Hitachi |
| Model | MAF0021 |
| Item Weight | 14.3 ounces |
| Item model number | MAF0021 |
| Exterior | Machined |
| Manufacturer Part Number | MAF0021 |
| OEM Part Number | 078 133 471 C, 078-133-471C |

## Images

![Hitachi MAF0021 Mass Air Flow Sensor - Image 1](https://m.media-amazon.com/images/I/610tt7vEmVL.jpg)
![Hitachi MAF0021 Mass Air Flow Sensor - Image 2](https://m.media-amazon.com/images/I/61Jtn9e+zaL.jpg)
![Hitachi MAF0021 Mass Air Flow Sensor - Image 3](https://m.media-amazon.com/images/I/51BYyAYM6+L.jpg)
![Hitachi MAF0021 Mass Air Flow Sensor - Image 4](https://m.media-amazon.com/images/I/51mT8IpyH7L.jpg)
![Hitachi MAF0021 Mass Air Flow Sensor - Image 5](https://m.media-amazon.com/images/I/61qB+Rcc+YL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Very good replacement.
  

*by D***N on Reviewed in the United States on August 10, 2022*

It was easy to install and very identical to the original. Must buy if you need it.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    If you think you need a new one, yes, yes you probably do.
  

*by G***K on Reviewed in the United States on July 19, 2016*

I purchased this a few years ago after fussing around with cleaning, cajoling, and coaxing the original one for years. It made an immediate, dramatic difference. I don't remember what the symptoms I was having were exactly other than lugging under load and poor idling, but man if I had known a new one would work as well as it did I would have saved a lot of time and annoyance.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    8L 30V and the vehicle immediately started to run better, including a smoother idle
  

*by J***L on Reviewed in the United States on September 29, 2016*

Product fit 1998 Audi A6 Quattro 2.8L 30V and the vehicle immediately started to run better, including a smoother idle.  Much better than a different aftermarket product that I attempted to use and quickly replaced with this OEM sensor.

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**Shop now:** [https://www.desertcart.jp/products/160375241-hitachi-maf0021-mass-air-flow-sensor](https://www.desertcart.jp/products/160375241-hitachi-maf0021-mass-air-flow-sensor)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-05-23*