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!

13507128 Flex Fuel Sensor | Desertcart France

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

€ 194.59

Duties & taxes included

In stock

Sold byAmazon FranceDelivered 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 France.

Secure transaction

Description

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

EFFORTLESS INSTALLATION - Flange mount design ensures a perfect fit and quick replacement, keeping you back on the road faster.
DURABILITY UNDER PRESSURE - Built to withstand up to 125°C, engineered for long-lasting reliability in demanding conditions.
ETHANOL CONTENT MONITORING - Accurately detects fuel ethanol levels from 0% to 100%, ensuring your flex fuel vehicle runs at peak efficiency.
GM RECOMMENDED AUTHENTICITY - Guaranteed genuine GM OE quality for seamless compatibility and peace of mind.
ENGINE PERFORMANCE OPTIMIZATION - Feeds real-time data to your engine control module to fine-tune air/fuel mix and ignition timing.

The GM Genuine Parts 13507128 Flex Fuel Sensor is an OE-spec replacement part designed to monitor ethanol content in flex fuel vehicles. Manufactured by ACDelco to GM standards, it ensures accurate fuel mixture adjustments for optimal engine performance and durability up to 125°C. Trusted by thousands with a 4.7-star rating, this sensor guarantees authentic quality and seamless fit for your GM vehicle.

Specifications

ASIN	B073ZQ1G2P
Best Sellers Rank	#28,527 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #1 in Automobile Fuel Tank Valve Sensors
Brand	GM GENUINE PARTS
Brand Name	GM GENUINE PARTS
Customer Reviews	4.7 out of 5 stars 480 Reviews
Global Trade Identification Number	00808709652618
Item Dimensions	10.9 x 9.7 x 3.3 Centimeters
Item Weight	50 Grams
Item dimensions L x W x H	10.9 x 9.7 x 3.3 Centimeters
Manufacturer	ACDelco
Material	Metal
Material Type	Metal
Measuring Range	0% - 100%
Model Number	13507128
Mounting Type	Flange Mount
Output Type	electrical signal
Part Number	13507128
Smart Home Compatibility	Not Smart Home Compatible
Specific Uses For Product	automotive fuel detection
Style	Modern
Style Name	Modern
UPC	808709652618
Unit Count	1.0 Count
Upper Temperature Rating	125 Degrees Celsius

Reviews

M**D

Definitely genuine

100% genuine flex fuel sensor. Very happy

24.02.2026

K**Y

17 sierra

17 sierra. Got flex fuel now, tune adjusted. E85 is a go.

20.05.2026

A**R

Added to MHD flex fuel sensor S58

Was worried it wasn’t going to work. But it worked like a charm!

30.05.2026

J**R

Great part

Works as it should. Reads my e85 perfectly.

14.11.2025

S**N

good product, good service

arrived as expected

13.11.2022

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 194.59

Duties & taxes included

In stock

Sold byAmazon FranceDelivered 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 France.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago