---
product_id: 273815759
title: "FN11-21-551 FN1121551 917-649 5S4923 Transmission Speed Sensor Fit for Mazda 2 5 6 CX-7 2005-2018,3 AXELA ATENZA TENZA 2002 2003 2004 2005 2006 2007 2008"
brand: "motisen"
price: "23168 Ft"
currency: HUF
in_stock: true
reviews_count: 8
category: "Motisen"
url: https://www.desertcart.hu/products/273815759-fn11-21-551-fn1121551-917-649-5s4923-transmission-speed-sensor
store_origin: HU
region: Hungary
---

# 10 Meters Sensing Distance Flange Mount for Easy Installation ±3% Measurement Accuracy FN11-21-551 FN1121551 917-649 5S4923 Transmission Speed Sensor Fit for Mazda 2 5 6 CX-7 2005-2018,3 AXELA ATENZA TENZA 2002 2003 2004 2005 2006 2007 2008

**Brand:** motisen
**Price:** 23168 Ft
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your Mazda’s heartbeat with precision speed sensing!

## Quick Answers

- **What is this?** FN11-21-551 FN1121551 917-649 5S4923 Transmission Speed Sensor Fit for Mazda 2 5 6 CX-7 2005-2018,3 AXELA ATENZA TENZA 2002 2003 2004 2005 2006 2007 2008 by motisen
- **How much does it cost?** 23168 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/273815759-fn11-21-551-fn1121551-917-649-5s4923-transmission-speed-sensor)

## Best For

- motisen enthusiasts

## Why This Product

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

## Key Features

- • **OEM-Grade Durability:** Built with premium copper, plastic, and stainless steel to meet strict OEM standards for longevity.
- • **FOMO-Free Reliability:** Eliminates failure light codes and ensures smooth shifting—don’t let a faulty sensor slow your drive.
- • **Precision You Can Trust:** Engineered with ±3% accuracy to keep your Mazda’s transmission running flawlessly.
- • **Plug & Play Installation:** Flange mount design means no special tools or programming—get back on the road faster.
- • **Wide Vehicle Compatibility:** Fits Mazda 2, 3, 5, 6, CX-7, Axela, Atenza, and Tenza models from 2002-2018—one sensor for multiple rides.

## Overview

The MOTISEN FN11-21-551 Transmission Speed Sensor offers ±3% measurement accuracy and a 10-meter sensing range, designed as a direct OEM replacement for multiple Mazda models (2002-2018). Crafted from high-quality copper, plastic, and stainless steel, it ensures durability and stable performance. Its flange mount design allows for easy, tool-free installation without programming, eliminating transmission failure codes and enhancing vehicle reliability.

## Description

Buy MOTISEN FN11-21-551 FN1121551 917-649 5S4923 Transmission Speed Sensor Fit for Mazda 2 5 6 CX-7 2005-2018,3 AXELA ATENZA TENZA 2002 2003 2004 2005 2006 2007 2008: Transmission Speed - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great quality, fast shipping - Very good quality!!
Review: Mazda 5 p0791 intermediate shaft sensor code only - Mazda 5 and 3s have 1 (2 prong) input speed sensor, and 2 (3 prong) output sensors, one next to the tcm on top of the transmission, and the 3rd that fixed my p0791 was the intermediate shaft output sensor (they are interchangable) is on the backside of the transmission underneath a heat shield. 10mm bolts for the shield, and for the part. Be aware that it will be full of transmission fluid. What I did was made sure the new one was clean and rubbed a little transmission fluid on the oring, loosened, and removed the bolt- then very quickly wiggle the old out with the left hand, and have the new one in your right hand to quickly plug the leak. Make sure you check your fluid level with the car running and top it off with type M or appropriate fluid afterwards. I lost like 200ml at most. Works so far.

## Features

- Interchange Part Number:917-649 FN11-21-551 723911 ADM57218 5S4923 SU6385 SC154 FN1121551 184200-0030 1842000030 FN12-21-551A FN11-21-551 SU6385 SU9767 5S4923 FN1121551 FN1221551A SC492 5S4923 SC154 0905047 090-5047 SU6385 GT7610-248 SN7139
- Compatible with: MAZDA 2 3 5 6 626 Atenza Mk Axela Cx-7 Tenza Premacy
- Service: One-Year-Warranty;If you meet any problem of quality,compatibility and installation, please not hesitate to contact us. You will get a quick response and solution
- Assurance: Always provide professional, premium and high-quality, brand new vehicle sensor products. all tested and calibration during the manufacturing process for reliability, durability, and performance
- Notice: To avoid mistakes, please carefully check our product pictures,vehicle fitment and part no.to make sure they are compatible with your vehicle
- Quality: Featuring stable performance, durability, and longevity; tested before shipment; packaged in boxes; made of high-quality materials; meeting OEM standards and specifications; utilizing advanced technology; eliminates failure light codes.
- Easy Installation:easy to install without the need for special tools. Enhances performance; designed as direct replacements and no need calibration, programming, or modification.
- Installation Steps: 1. Diagnose the trouble codes to find the faulty sensor position; 2. Remove it from the connector; 3. Plug in the new sensor; 4. Clear the trouble faulty codes.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08SHPXSBH |
| Best Sellers Rank | #636,366 in Automotive ( See Top 100 in Automotive ) #451 in Automotive Replacement Transmission Speed Sensors |
| Brand | MOTISEN |
| Customer Reviews | 4.1 4.1 out of 5 stars (53) |
| Date First Available | January 8, 2021 |
| Item Weight | 1.13 ounces |
| Item model number | FN11-21-551 |
| Manufacturer | MOTISEN |
| Manufacturer Part Number | MOX066 |
| Material | Copper, Plastic, Stainless Steel |
| Measurement Accuracy | ±3% |
| Mounting Type | Flange Mount |
| OEM Part Number | 917-649 FN11-21-551 723911 ADM57218 5S4923 SU6385 SC154 FN1121551 184200-0030 1842000030 FN12-21-551A FN11-21-551 SU6385 SU9767 5S4923 FN1121551 FN1221551A SC492 5S4923 SC154 0905047 090-5047 SU6385 GT7610-248 SN7139 |
| Output Type | Push-Pull |
| Package Dimensions | 3.07 x 2.2 x 1.73 inches |
| Sensing Distance | 10 Meters |
| Specific Uses For Product | Speed |
| Style | Modern |
| UPC | 717186591795 |

## Product Details

- **Brand:** MOTISEN
- **Material:** Copper, Plastic, Stainless Steel
- **Measurement Accuracy:** ±3%
- **Mounting Type:** Flange Mount
- **Style:** Modern

## Images

![FN11-21-551 FN1121551 917-649 5S4923 Transmission Speed Sensor Fit for Mazda 2 5 6 CX-7 2005-2018,3 AXELA ATENZA TENZA 2002 2003 2004 2005 2006 2007 2008 - Image 1](https://m.media-amazon.com/images/I/51A0Hreg67L.jpg)
![FN11-21-551 FN1121551 917-649 5S4923 Transmission Speed Sensor Fit for Mazda 2 5 6 CX-7 2005-2018,3 AXELA ATENZA TENZA 2002 2003 2004 2005 2006 2007 2008 - Image 2](https://m.media-amazon.com/images/I/51IiKN4ri4L.jpg)
![FN11-21-551 FN1121551 917-649 5S4923 Transmission Speed Sensor Fit for Mazda 2 5 6 CX-7 2005-2018,3 AXELA ATENZA TENZA 2002 2003 2004 2005 2006 2007 2008 - Image 3](https://m.media-amazon.com/images/I/51Qqy4kIvuL.jpg)
![FN11-21-551 FN1121551 917-649 5S4923 Transmission Speed Sensor Fit for Mazda 2 5 6 CX-7 2005-2018,3 AXELA ATENZA TENZA 2002 2003 2004 2005 2006 2007 2008 - Image 4](https://m.media-amazon.com/images/I/51phroR-saL.jpg)
![FN11-21-551 FN1121551 917-649 5S4923 Transmission Speed Sensor Fit for Mazda 2 5 6 CX-7 2005-2018,3 AXELA ATENZA TENZA 2002 2003 2004 2005 2006 2007 2008 - Image 5](https://m.media-amazon.com/images/I/51yKUHwKeeL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great quality, fast shipping
*by P***A on August 8, 2025*

Very good quality!!

### ⭐⭐⭐⭐⭐ Mazda 5 p0791 intermediate shaft sensor code only
*by K***Y on November 2, 2021*

Mazda 5 and 3s have 1 (2 prong) input speed sensor, and 2 (3 prong) output sensors, one next to the tcm on top of the transmission, and the 3rd that fixed my p0791 was the intermediate shaft output sensor (they are interchangable) is on the backside of the transmission underneath a heat shield. 10mm bolts for the shield, and for the part. Be aware that it will be full of transmission fluid. What I did was made sure the new one was clean and rubbed a little transmission fluid on the oring, loosened, and removed the bolt- then very quickly wiggle the old out with the left hand, and have the new one in your right hand to quickly plug the leak. Make sure you check your fluid level with the car running and top it off with type M or appropriate fluid afterwards. I lost like 200ml at most. Works so far.

### ⭐⭐ Wrong part,and faulty
*by G***D on April 12, 2025*

I ordered two of these, one was faulty and the other was the wrong part.

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-06*