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.

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!

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ACDelco GM Genuine Parts 13507128 Flex Fuel Sensor

Product ID: 293008161

Details

Brand
GM GENUINE
Item dimensions L x W x H
10.9 x 9.7 x
Item weight
50 Grams
Material
Metal
Style
Modern

🔥Monitors 0-100% ethanol content

🔧GM OE spec for perfect fit

⚙️±1% measurement accuracy

402.73 DT

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Description

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

PLUG PLAY INSTALLATION - Surface mount design for hassle-free upgrade
SEAMLESS ECM INTEGRATION - Delivers real-time data for optimized engine performance
DURABILITY UNDER PRESSURE - Built to withstand up to 125°C for long-lasting reliability
GM RECOMMENDED AUTHENTICITY - Factory-grade replacement trusted by General Motors
PRECISION ETHANOL MONITORING - Ensures your engine always gets the perfect fuel mix

The ACDelco GM Genuine Parts 13507128 Flex Fuel Sensor is a factory-recommended replacement part engineered to monitor ethanol content from 0 to 100% with ±1% accuracy. Manufactured to GM OE specifications, it ensures perfect fit, form, and function while delivering real-time data to your vehicle’s ECM for optimal air/fuel mixture and ignition timing. Designed for durability up to 125°C, this sensor guarantees reliable performance and longevity in your GM flex fuel vehicle.

Specifications

ASIN	B073ZQ1G2P
Best Sellers Rank	#10,678 in Automotive ( See Top 100 in Automotive ) #3 in Automotive Fuel Injection Pressure Sensors
Brand Name	GM GENUINE PARTS
Customer Reviews	4.7 4.7 out of 5 stars (484)
Global Trade Identification Number	00808709652618
Included Components	Flex Fuel Sensor
Item Dimensions	10.9 x 9.7 x 3.3 centimeters
Item Type Name	Flex Fuel Sensor
Item Weight	50 Grams
Manufacturer	ACDelco
Material Type	Metal
Measurement Accuracy	±1%
Measuring Range	0% - 100%
Model	13507128
Mounting Type	Surface Mount
Number of Items	1
Output Type	electrical signal
Part Number	13507128
Specific Uses For Product	vehicle operation
Style Name	Modern
UPC	808709652618
Unit Count	1 Count
Upper Temperature Rating	125 Degrees Celsius

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402.73 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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