---
product_id: 400672363
title: "Holley EFI 554-128 Transbrake Input Protection Module"
brand: "holley efi"
price: "€ 119.25"
currency: EUR
in_stock: true
reviews_count: 2
url: https://www.desertcart.sk/products/400672363-holley-efi-554-128-transbrake-input-protection-module
store_origin: SK
region: Slovakia
---

# 12V connection Compact design Flyback protection Holley EFI 554-128 Transbrake Input Protection Module

**Brand:** holley efi
**Price:** € 119.25
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Ride with Unmatched Protection!

## Quick Answers

- **What is this?** Holley EFI 554-128 Transbrake Input Protection Module by holley efi
- **How much does it cost?** € 119.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/400672363-holley-efi-554-128-transbrake-input-protection-module)

## Best For

- holley efi enthusiasts

## Why This Product

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

## Key Features

- • **🔧 Durable Build:** Machined exterior for enhanced durability and reliability in high-performance environments.
- • **📏 Space-Saving Design:** Compact dimensions (10.16 cm) fit perfectly in any setup without clutter.
- • **📦 Lightweight Champion:** Weighing only 41g, it won’t weigh down your performance vehicle.
- • **🔌 Seamless Integration:** Easily connects ECU to transbrake solenoid for hassle-free installation.
- • **🛡️ Ultimate Protection:** Safeguards your ECU from damaging flyback voltage, ensuring longevity.

## Overview

The HOLLEY EFI554-128 Transbrake Input Protection Module is a cutting-edge device designed to connect your ECU directly to the transbrake solenoid while safeguarding against damaging flyback voltage. With its compact design and durable construction, this module is essential for any performance vehicle enthusiast looking to enhance reliability and performance.

## Description

Holley EFI 554-128 Transbrake Input Protection Module

## Features

- 554-128 is a device that allows for an ECU input to be safely connected directly to the +12V side of the transbrake solenoid. This device protects the ECU input from damaging flyback voltage which occurs when the transbrake is released

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Holley |
| Brand | HOLLEY EFI |
| Product Dimensions | 10.16 x 10.16 x 10.16 cm; 41 g |
| Item model number | 554-128 |
| Exterior | Machined |
| Manufacturer Part Number | 554-128 |
| OEM Part Number | 554-128 |
| Item Weight | 41 g |

## Images

![Holley EFI 554-128 Transbrake Input Protection Module - Image 1](https://m.media-amazon.com/images/I/716+K-7P3aL.jpg)

## Customer Reviews

### ⭐⭐⭐ 







  
  
    Ok
  

*by T***T on Reviewed in the United States on 10 August 2023*

Price to high

### ⭐ 







  
  
    Fried after a week
  

*by A***R on Reviewed in the United States on 21 September 2023*

Product fried after having it for a week just idling the car on the garage

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**Shop now:** [https://www.desertcart.sk/products/400672363-holley-efi-554-128-transbrake-input-protection-module](https://www.desertcart.sk/products/400672363-holley-efi-554-128-transbrake-input-protection-module)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-05-18*