---
product_id: 201069210
title: "ACDelco 13577429 GM Original Equipment Flex Fuel Sensor"
brand: "acdelco"
price: "$299.52"
currency: USD
in_stock: false
reviews_count: 5
url: https://www.desertcart.ec/products/201069210-acdelco-13577429-gm-original-equipment-flex-fuel-sensor
store_origin: EC
region: Ecuador
---

# Monitors Ethanol Fuel Mix GM OE Spec Precision Fit Durable Stainless Steel Build ACDelco 13577429 GM Original Equipment Flex Fuel Sensor

**Brand:** acdelco
**Price:** $299.52
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Stay ahead with precision fuel sensing – because your ride deserves GM-grade intelligence!

## Quick Answers

- **What is this?** ACDelco 13577429 GM Original Equipment Flex Fuel Sensor by acdelco
- **How much does it cost?** $299.52 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/201069210-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

- • **Precision GM OE Fit:** Engineered to GM Original Equipment specs for flawless integration and peak performance.
- • **DIY-Friendly Installation:** Flange mount design and exact fit make replacement quick and hassle-free for the hands-on professional.
- • **Real-Time Ethanol Monitoring:** Continuously measures fuel ethanol content to optimize engine efficiency and reduce emissions.
- • **Seamless Engine Control Sync:** Feeds accurate data to your vehicle’s ECU for perfect air/fuel mixture and ignition timing adjustments.
- • **Robust Stainless Steel Design:** Built to withstand high temperatures up to 250°F ensuring long-lasting durability.

## Overview

The ACDelco 13577429 GM Original Equipment Flex Fuel Sensor is a high-quality, stainless steel sensor designed to monitor ethanol content in flex fuel vehicles. Manufactured to exact GM OE specifications, it ensures perfect fit, reliable performance, and durability up to 250°F. By providing real-time data to the engine control module, it optimizes fuel mixture and ignition timing for efficient engine operation. Ideal for professionals seeking a trusted, OEM-grade replacement that supports vehicle longevity and performance.

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

## Features

- Offering the quality, reliability, and durability of GM OE
- Manufactured to GM OE specification for fit, form, and function
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01GQR9C5O |
| Best Sellers Rank | 573,675 in Automotive ( See Top 100 in Automotive ) 28 in Automotive Fuel Tank Valve Sensors |
| Brand | ACDelco |
| Customer Reviews | 4.3 out of 5 stars 369 Reviews |
| Global Trade Identification Number | 00808709571094 |
| Included Components | ACDelco - Flex Fuel Senso (Slp-P1) (13577429) |
| Item Dimensions | 10.2 x 10.2 x 2.5 centimetres |
| Item Type Name | ACDelco Auto Parts |
| Item Weight | 0.05 Kilograms |
| Item dimensions L x W x H | 10.2 x 10.2 x 2.5 centimetres |
| Item height | 1 inches |
| Item weight | 0.05 Kilograms |
| Manufacturer | AC Delco |
| Material | Stainless Steel |
| Model Number | 13577429 |
| Mounting Type | Flange Mount |
| Mounting type | Flange Mount |
| Output Type | Analog |
| Specific Uses For Product | automotive, motorcycle |
| Style | Modern |
| Style Name | Modern |
| UPC | 808709571094 |
| Upper Temperature Rating | 250 Degrees Fahrenheit |

## Product Details

- **Brand:** ACDelco
- **Item dimensions L x W x H:** 10.2 x 10.2 x 2.5 centimetres
- **Item weight:** 0.05 Kilograms
- **Style:** Modern
- **Mounting type:** Flange Mount

## Images

![ACDelco 13577429 GM Original Equipment Flex Fuel Sensor - Image 1](https://m.media-amazon.com/images/I/51FxC+1UwpL.jpg)
![ACDelco 13577429 GM Original Equipment Flex Fuel Sensor - Image 2](https://m.media-amazon.com/images/I/51ObKnr2xbL.jpg)
![ACDelco 13577429 GM Original Equipment Flex Fuel Sensor - Image 3](https://m.media-amazon.com/images/I/51OoDZHWe0L.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

### ⭐⭐⭐⭐⭐ Review
*by J***I on 5 September 2021*

As described

### ⭐⭐⭐⭐⭐ Review
*by K***B on 25 May 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

### ⭐⭐⭐⭐⭐ Review
*by L***A on 27 July 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

## 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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**Shop now:** [https://www.desertcart.ec/products/201069210-acdelco-13577429-gm-original-equipment-flex-fuel-sensor](https://www.desertcart.ec/products/201069210-acdelco-13577429-gm-original-equipment-flex-fuel-sensor)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-23*