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13507128 Flex Fuel Sensor

Q: Would this be a replacement on a 2004 suburban Z71?

Worked on 2004 5.3 suburban. Wired it up closer to the engine bay. The old unit was too far down the line and the wiring went bad to ground. This is just a more modern version with a much easier install. They all produce the voltage necessary by the computer. You will need new fuel line for this install and the pigtail as they are different. Possibly use the old lines near the intake and route it back the manifold input. Or just remove all the old lines and start fresh. The old fuel lines were terrible on my truck and i had to replace the 170000 mile old pump anyway.

Q: hello， I want to know the difference between 13507128 and 13577429 their prices are not the same ，i want to know which one should i buy？

There are two versions of this sensor. One has the ability to measure fluid temperature as well if your aftermarket ECU supports it. Good luck!

Product ID: 598414318

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Details

Brand
ACDelco
Item dimensions L x W x H
10.9 x 9.7 x
Material
Metal
Item Weight
0.25 Pounds
Style
Modern

📊0-100% ethanol measurement

⚙️OEM precision fit

🌡️Up to 125°C heat tolerance

Frequently Bought Together

ACDelco GM Genuine Parts 13507128 Flex Fuel Sensor

Flex Fuel Sensor Connector Replacement for GM E85 Flex Pigtail Plastic Fuel Composition Ethanol E85-2

EVIL ENERGY 6AN Male to 3/8" Quick-Disconnect Female EFI Fuel Rail Fitting Aluminum 2PCS

Description

⚡ Drive smarter with GM’s flex fuel sensor—because your engine deserves precision!

PRECISION GM OE FIT - Engineered to match original factory specs for flawless integration
DYNAMIC ETHANOL SENSING - Monitors fuel blend from 0% to 100% ethanol for optimized engine tuning
HEAT RESISTANT DURABILITY - Operates reliably up to 125°C ensuring long-lasting performance
PLUG AND PLAY INSTALLATION - No assembly required—get back on the road faster with a perfect fit
SEAMLESS ENGINE CONTROL SYNC - Delivers accurate signals to your vehicle’s ECU for peak efficiency

The GM Genuine Parts 13507128 Flex Fuel Sensor is a GM-recommended, OE-quality replacement designed to precisely monitor ethanol content in flex fuel vehicles. Built to exact GM specifications, it ensures optimal air/fuel mixture and ignition timing by sending accurate electrical signals to the engine control module. With a robust metal build, flange mount design, and heat resistance up to 125°C, this sensor guarantees reliable, long-lasting performance and easy installation for GM vehicle owners who demand factory-level quality.

Specifications

Brand	ACDelco
Item dimensions L x W x H	10.9 x 9.7 x 3.3 Centimeters
Material	Metal
Item Weight	0.25 Pounds
Style	Modern
Measuring Range	0% - 100%
Mounting Type	Flange Mount
Output Type	electrical signal
Specific Uses For Product	vehicle operation
Upper Temperature Rating	125 Degrees Celsius
UPC	808709652618
Global Trade Identification Number	00808709652618
Manufacturer	ACDelco
Product Dimensions	10.92 x 9.65 x 3.3 cm; 113.4 g
Item model number	13507128
Manufacturer Part Number	13507128
OEM Part Number	13507128
Assembly Required	No
Item Weight	113 g

Have a Question? See What Others Asked

Would this be a replacement on a 2004 suburban Z71?

Is this 3/8 or 5/16?

hello， I want to know the difference between 13507128 and 13577429 their prices are not the same ，i want to know which one should i buy？

Would this fit 2017 Silverado ?

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