---
product_id: 12824710
title: "25-392 Adjustable Fuel Pressure Regulator Accessory"
brand: "aem"
price: "$114.06"
currency: USD
in_stock: true
reviews_count: 8
category: "Aem"
url: https://www.desertcart.us/products/12824710-25-392-adjustable-fuel-pressure-regulator-accessory
store_origin: US
region: United States of America
---

# Complete rebuild kit with diaphragm & O-ring Universal fit for Honda/Acura & more 3 precision orifices for tailored fuel flow 25-392 Adjustable Fuel Pressure Regulator Accessory

**Brand:** aem
**Price:** $114.06
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your fuel game — don’t let your ride run on yesterday’s tech!

## Quick Answers

- **What is this?** 25-392 Adjustable Fuel Pressure Regulator Accessory by aem
- **How much does it cost?** $114.06 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/12824710-25-392-adjustable-fuel-pressure-regulator-accessory)

## Best For

- aem enthusiasts

## Why This Product

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

## Key Features

- • **Enhanced Return Flow:** Updated return port plug with larger opening improves fuel return line flow for quicker throttle response.
- • **Trusted Genuine Quality:** Authentic AEM part ensures durability and peace of mind over cheap knockoffs.
- • **Universal Compatibility:** Designed for AEM regulators on Honda/Acura and adaptable to other universal fuel pressure regulators.
- • **Complete Rebuild Solution:** Includes diaphragm and O-ring to restore your regulator’s factory-grade reliability and responsiveness.
- • **Tailored Fueling Precision:** Three interchangeable orifices let you dial in exact fuel pressure for peak engine performance.

## Overview

The AEM 25-392 Adjustable Fuel Pressure Regulator Rebuild Kit is a precision-engineered accessory featuring a diaphragm, O-ring, and three orifices to customize fuel pressure. Compatible with Honda/Acura AEM regulators and universal models, it includes an updated return port plug for improved fuel flow and throttle response. This genuine AEM kit restores regulator performance, ensuring reliable and efficient fueling for your vehicle.

## Description

The AEM fuel pressure regulator rebuild kit includes the diaphragm, O-ring and 3 orifices for different fueling requirements. This rebuild kit works for the AEM fuel pressure regulators for Honda/Acura as well as universal fuel pressure regulator. If you don't have one of these in your spare box, get one now.

Review: Aem rebuild kit …. Quick and easy change if you know what you are doing. - Fpr was sitting for awhile in a box…. So thought diaphragm was maybe going bad …. Bought rebuild kit and, it has a updated return port plug that has a bigger opening…. Thus opening the return line flow a bit more …. Definitely better response compared to older one that was in my Fpr. Happy fueling!!
Review: REAL AEM DIAPHRAM KIT......Happy - Super pleased, true AEM item in sealed box, i bought a fake hobda Fpr AEM knock off, and the diaphram failed in two weeks at 50 psi. this is a nite and day difference. thanks.

## Features

- The AEM fuel pressure regulator rebuild kit includes the diaphragm, O-ring and 3 orifices for different fueling requirements
- This rebuild kit works for the AEM fuel pressure regulators for Honda/Acura

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00596CPSA |
| Best Sellers Rank | #647,400 in Automotive ( See Top 100 in Automotive ) #586 in Automotive Replacement Fuel Injection Pressure Regulators |
| Brand | AEM |
| Customer Reviews | 4.0 4.0 out of 5 stars (40) |
| Date First Available | July 1, 2011 |
| Exterior | Brushed |
| Item Weight | 2.11 ounces |
| Item model number | 25-392 |
| Manufacturer | AEM |
| Manufacturer Part Number | 25-392 |
| Model | 25-392 |
| OEM Part Number | 25-392 |

## Images

![25-392 Adjustable Fuel Pressure Regulator Accessory - Image 1](https://m.media-amazon.com/images/I/51TzS9v3CmL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Aem rebuild kit …. Quick and easy change if you know what you are doing.
*by J***N on October 15, 2022*

Fpr was sitting for awhile in a box…. So thought diaphragm was maybe going bad …. Bought rebuild kit and, it has a updated return port plug that has a bigger opening…. Thus opening the return line flow a bit more …. Definitely better response compared to older one that was in my Fpr. Happy fueling!!

### ⭐⭐⭐⭐⭐ REAL AEM DIAPHRAM KIT......Happy
*by H***A on May 3, 2020*

Super pleased, true AEM item in sealed box, i bought a fake hobda Fpr AEM knock off, and the diaphram failed in two weeks at 50 psi. this is a nite and day difference. thanks.

### ⭐⭐⭐ Don't go off the picture
*by A***R on January 26, 2020*

Had what I needed, but stock photo is wrong. 25-392 bill of materials only includes: diaphram, .250 orifice, fpr o ring and instructions.

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**Shop now:** [https://www.desertcart.us/products/12824710-25-392-adjustable-fuel-pressure-regulator-accessory](https://www.desertcart.us/products/12824710-25-392-adjustable-fuel-pressure-regulator-accessory)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-27*