

⚡ Drive smarter with GM’s flex fuel sensor — authenticity you can trust!
The GM Genuine Parts 13507128 Flex Fuel Sensor is a factory-spec replacement designed to monitor ethanol content from 0-100%, enabling your GM vehicle’s engine control module to optimize fuel efficiency and performance. Built with durable metal and rated for temperatures up to 125°C, this sensor guarantees a perfect OEM fit and long-lasting reliability, backed by a 24-month warranty and stellar customer reviews.





| ASIN | B073ZQ1G2P |
| Best Sellers Rank | #11,826 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Fuel Tank Valve Sensors |
| Brand Name | GM GENUINE PARTS |
| Customer Reviews | 4.8 4.8 out of 5 stars (475) |
| Global Trade Identification Number | 00808709652618 |
| Included Components | Flex Fuel Sensor |
| Item Dimensions | 4.3 x 3.8 x 1.3 inches |
| Item Type Name | Flex Fuel Sensor |
| Item Weight | 50 Grams |
| Manufacturer | ACDelco |
| Material Type | Metal |
| Measuring Range | 0% - 100% |
| Model | 13507128 |
| Mounting Type | Flange Mount |
| Output Type | Analog |
| Style Name | Modern |
| UPC | 808709652618 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 125 Degrees Celsius |
| Warranty Description | 24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. |
J**R
Great part
Works as it should. Reads my e85 perfectly.
M**B
100% OEM
100% OEM. people worry about ordering these ethanol sensors now because you can never tell when your sold a fake. i compared this to the original i had from the GM dealership and i can confirm this is 100% OEM
B**X
Cobb Flex Fuel e85 Sensor Replacement
18 Subaru WRX owner here with the first gen e85 Cobb Flex Fuel Kit. This replacement will fix your Ethanol Low Voltage CEL. Simple 5 minute DIY replacement fix.
S**F
Solid sensor
Almost got the more expensive one with the mounting bracket but decided to roll the dice after reading some peeps haveing issues out the box, luckily worked for me. Added sensor to a 08 non flex Silverado once hooked up was reading 10 ish % on pump gas, first fill up on E and percentage started climbing leaving the station. Side note I had to change injectors as well to run e, I went with 50lb. I’ll be changing fuel pump down the line.
D**S
works
works great for what Im using it for.
V**.
Great product
Great product. Installed it on my 09 Cadillac CTS-V
S**W
Works
Works like it should
G**.
Authentic
No complaints with the quality. Appears to be authentic. Fits as expected and is still working in my high horsepower car. It's been installed for at least 5 months now and is still accurate. No leaks and is easy to install.
M**D
100% genuine flex fuel sensor. Very happy
D**D
Description of the product could use some refining. But this is an AC Delco (Continental) OEM GM flex fuel sensor.
B**.
Tried to make it work properly over several days, kept switching between 2 and 10 % alcohol content, finally switched for a bigger Continental model, and this one worked properly. I don't know if it was a bad unit, or if it's just cheap and imprecise.
S**N
arrived as expected
N**.
Sensor I recieved is not an OE gm sensor and failed immediately on install. When compared to a true oe sensor the visual differences in the part numbering and logo is apparent. Also the coloring of the plastic is not true to a gm part.
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