









🚀 Shift into precision — never miss a beat on the road!
The A-Premium Automatic Transmission Speed Sensor is a high-accuracy digital sensor designed for seamless OE direct-fit replacement on a broad range of Mazda vehicles from 1999 to 2015. It measures vehicle speed up to 150 mph (240 km/h) with reliable flange mounting, backed by a 1-year unlimited mileage warranty, ensuring durable and precise transmission performance.






| ASIN | B09H5HJKYW |
| Best Sellers Rank | #933,047 in Automotive ( See Top 100 in Automotive ) #786 in Automotive Replacement Transmission Speed Sensors |
| Brand | A-Premium |
| Customer Reviews | 4.0 4.0 out of 5 stars (30) |
| Date First Available | September 25, 2021 |
| Item Weight | 1.51 ounces |
| Item model number | FN0121550 |
| Manufacturer | PremiumpartsWhosale |
| Manufacturer Part Number | APSS0050 |
| Maximum Supply Voltage | 5 Volts (DC) |
| Measurement Accuracy | High |
| Measuring Range | 0-150 mph or 0-240 km/h |
| Mounting Type | Flange Mount |
| OEM Part Number | FN0121550, G4T00190, G4T00190B, 917-648, SC490, 5S12585, 917648, 917 648 |
| Output Type | Digital |
| Package Dimensions | 3.54 x 2.95 x 2.8 inches |
| Specific Uses For Product | Speed |
| Style | Modern |
B**N
Good!
I assume this was a great product! I ordered for my finance!!
R**R
Fit good and was brand new never used
The box it did come in looked like it was used but the item was new inside it but the whole thing was inside a good Amazon box Soo I could see it being hard to catch that and put the new item into a new box not a used box
W**.
Worthless
Ordered this October 2025, now in February 2026 I had to replace it again. It didn't even last 4 months.
H**A
Sensor
Excelent product
G**G
Bad
Bad part and can't return it because I waited to long to put it on. It's only a 30 day warranty
A**R
Did not work
Did not work.
Trustpilot
2 weeks ago
3 weeks ago