---
product_id: 40872973
title: "Model 305"
brand: "flight systems"
price: "€ 999.03"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/40872973-model-305
store_origin: FI
region: Finland
---

# Improved circuit design Enhanced heat dissipation Rugged weather-proof packaging Model 305

**Brand:** flight systems
**Price:** € 999.03
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade Your Power Game!

## Quick Answers

- **What is this?** Model 305 by flight systems
- **How much does it cost?** € 999.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/40872973-model-305)

## Best For

- flight systems enthusiasts

## Why This Product

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

## Key Features

- • **🇺🇸 Built to Last:** Proudly manufactured in the USA, ensuring top-notch quality and reliability.
- • **🔄 Direct Replacement:** Seamlessly replaces multiple Onan part numbers for hassle-free upgrades.
- • **🔧 Rebuildable Design:** Unlike traditional epoxy encased models, the Model 305 can be rebuilt for longevity.
- • **🛡️ 2-Year Warranty:** Enjoy peace of mind with a robust 2-year warranty backing your purchase.
- • **🌟 Enhanced Performance:** Experience superior performance with improved heat management and circuit efficiency.

## Overview

The Model 305 is a high-performance voltage regulator designed as a direct replacement for various Onan Emerald, Marquis, and Microlite Series Gen Sets. With its advanced circuit design, weather-proof packaging, and superior heat dissipation, this product not only enhances reliability but also offers the unique advantage of being rebuildable. Manufactured in the USA and supported by a 2-year warranty, the Model 305 is the smart choice for professionals seeking durability and efficiency.

## Description

Flight Systems part number Model 305 is an improved, direct replacement for the voltage regulator used in several models of Onan Emerald, Marquis, and Microlite Series Gen Sets. Features include improved circuit design, rugged weather-proof packaging and better heat dissipation (through gel encapsulation and larger internal heat sink). Unlike the epoxy encased originals, the Model 305 can be rebuilt. It is built in the USA and backed by a 2-year Warranty. This regulator replaces the following ONAN part numbers: 305-0809-01, 305-0851, 305-0782-01, 305-0830-01, 305-0826

## Features

- Two Year Warranty
- Improved Aftermarket Part

## Images

![Model 305 - Image 1](https://m.media-amazon.com/images/I/41QUEDy3L-L.jpg)

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**Shop now:** [https://www.desertcart.fi/products/40872973-model-305](https://www.desertcart.fi/products/40872973-model-305)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-21*