---
product_id: 43378521
title: "ACDelco 13577429 GM Original Equipment Flex Fuel Sensor"
brand: "acdelco"
price: "VT53298"
currency: VUV
in_stock: false
reviews_count: 11
url: https://www.desertcart.vu/products/43378521-acdelco-13577429-gm-original-equipment-flex-fuel-sensor
store_origin: VU
region: Vanuatu
---

# Monitors ethanol for optimized engine Durability with long service life GM OE spec precision fit ACDelco 13577429 GM Original Equipment Flex Fuel Sensor

**Brand:** acdelco
**Price:** VT53298
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Unlock your GM’s true flex fuel potential with precision and power!

## Quick Answers

- **What is this?** ACDelco 13577429 GM Original Equipment Flex Fuel Sensor by acdelco
- **How much does it cost?** VT53298 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/43378521-acdelco-13577429-gm-original-equipment-flex-fuel-sensor)

## Best For

- acdelco enthusiasts

## Why This Product

- Trusted acdelco brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted GM Quality:** Backed by GM’s rigorous standards and a strong 4.7-star rating from hundreds of satisfied users.
- • **Precision GM OE Fit:** Engineered to match original GM factory specs for seamless integration and peak performance.
- • **DIY-Friendly Upgrade:** Perfect for savvy professionals upgrading flex fuel capability without costly kits—plug-and-play simplicity.
- • **Durability That Lasts:** Built with stainless steel and tested to withstand up to 250°F, ensuring reliable operation under tough conditions.
- • **Real-Time Ethanol Monitoring:** Continuously detects fuel ethanol content to optimize air/fuel mix and ignition timing for maximum efficiency.

## Overview

The ACDelco 13577429 Flex Fuel Sensor is a GM-recommended, original equipment replacement part designed to monitor ethanol content in flex fuel vehicles. Manufactured to exact GM specifications, it ensures precise fit, reliable performance, and long-lasting durability. Ideal for professionals seeking a cost-effective, high-quality upgrade to optimize engine efficiency and fuel management.

## Description

An ACDelco GM Original Equipment Flex Fuel Sensor monitors the ethanol content of the fuel in your flex fuel vehicle, and is a GM-recommended replacement for your vehicle’s original component. The flex fuel sensor signal is used by the engine control module to adjust the air/fuel mixture and ignition timing for efficient operation. This original equipment flex fuel sensor has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Review: Great for DIY Flex Fuel Sensor - Way better than flex fuel kits. Made my own flex fuel kit for under 250 total for a 2019 bmw 330i and works perfect
Review: Works out of the box with Hondata KPro V4 - Cheaper than buying a whole flex fuel kit and worked perfectly with my KPro V4 to add flex fuel capability to my K24 swapped EG

## Features

- GM-recommended replacement part for your GM vehicle’s original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured to GM OE specification for fit, form, and function
- Manufactured to meet or exceed strict quality requirements

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01GQR9C5O |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #323,634 in Automotive ( See Top 100 in Automotive ) #16 in Automotive Replacement Fuel Tank Valve Sensors #8,700 in Automotive Replacement Fuel System Equipment |
| Brand | ACDelco |
| Customer Reviews | 4.7 4.7 out of 5 stars (382) |
| Date First Available | June 7, 2016 |
| Global Trade Identification Number | 00808709571094 |
| Included Components | ACDelco - Flex Fuel Senso (Slp-P1) (13577429) |
| Is Discontinued By Manufacturer | Yes |
| Item Package Quantity | 1 |
| Item Weight | 1.58 ounces |
| Item dimensions L x W x H | 4 x 4 x 1 inches |
| Item model number | 13577429 |
| Manufacturer | AC Delco |
| Material | Stainless Steel |
| Mounting Type | Flange Mount |
| Output Type | Analog |
| Part Number | 13577429 |
| Product Dimensions | 4 x 4 x 1 inches |
| Style | Modern |
| UPC | 808709571094 |
| Upper Temperature Rating | 250 Degrees Fahrenheit |
| Warranty Description | Manufacturer Warranty |

## Product Details

- **Brand:** ACDelco
- **Item Weight:** 0.05 Kilograms
- **Item dimensions L x W x H:** 4 x 4 x 1 inches
- **Material:** Stainless Steel
- **Style:** Modern

## Images

![ACDelco 13577429 GM Original Equipment Flex Fuel Sensor - Image 1](https://m.media-amazon.com/images/I/31AGBKAxRPL.jpg)
![ACDelco 13577429 GM Original Equipment Flex Fuel Sensor - Image 2](https://m.media-amazon.com/images/I/31WzRydBD1L.jpg)
![ACDelco 13577429 GM Original Equipment Flex Fuel Sensor - Image 3](https://m.media-amazon.com/images/I/31XR76whX-L.jpg)
![ACDelco 13577429 GM Original Equipment Flex Fuel Sensor - Image 4](https://m.media-amazon.com/images/I/51FxC+1UwpL.jpg)
![ACDelco 13577429 GM Original Equipment Flex Fuel Sensor - Image 5](https://m.media-amazon.com/images/I/51ObKnr2xbL.jpg)

## Questions & Answers

**Q: Im doing a flex fuel conversion on a 2000 trans am. Will this sensor work with a 2002 chevy Tahoe operating system for flex fuel?**
A: Yes

**Q: 2020 Silverado 5.3 would it fit?**
A: It would if you have the harness for it if not you are better off getting a E85 kit for your truck instead.

**Q: Does this sensor also measure fuel temperature?**
A: Yes - this sensor also measures temperature.  The ACDelco (or Continental) flex fuel sensor outputs a PWM signal that is from 50hz to 150hz for % ethanol content and encodes the fuel temperature in the PWM duty cycle.  You need some specific circuitry or an intelligent ECU to extract both % ethanol and fuel temp from the signal pin that is in the 3-pin connector.

**Q: What size quick connector do i need ?**
A: 3/8”

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for DIY Flex Fuel Sensor
*by K***B on May 25, 2025*

Way better than flex fuel kits. Made my own flex fuel kit for under 250 total for a 2019 bmw 330i and works perfect

### ⭐⭐⭐⭐⭐ Works out of the box with Hondata KPro V4
*by L***A on July 27, 2024*

Cheaper than buying a whole flex fuel kit and worked perfectly with my KPro V4 to add flex fuel capability to my K24 swapped EG

### ⭐⭐⭐⭐⭐ Great product
*by J***N on October 26, 2023*

Used for a E85 conversion on my 2010 Camaro, has been holding up so far and worked well on the dyno, great for aftermarket use or OEM

## Frequently Bought Together

- ACDelco 13577429 GM Original Equipment 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

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-25*