The shift from gasoline to propane for portable generators is driven by cleaner burning fuel, longer shelf life, and reduced maintenance needs. This guide highlights five top conversion kits that enable safe, reliable tri-fuel or dual-fuel operation, expanding your generator’s versatility. Each kit is evaluated for compatibility, ease of installation, and practical use cases—from home backup power to camping and RV life. Below, you’ll find a concise overview of each option and a buying guide to help you choose the right kit for your generator model and fuel preferences.
| Product | Brand | Fuel Flexibility | Best For |
|---|---|---|---|
| Nature Gas Propane Carburetor Conversion Kit | ALLMOST | Propane/Gas (Tri-fuel compatible) | Predator Harbor Freight generators |
| Hutch Mountain Generator Propane Conversion Kit | Hutch Mountain | Propane/Gas/Natural Gas | Honda EU2200i and similar |
| New Manual Choke Dual Fuel Carburetor | LEIMO KPARTS | LPG/NG/Gasoline | GX390 and related 4.5–5.5kW gens |
| YAMAKATO 389cc–Tri Dual Carb Kit | YAMAKATO | Gasoline/Propane/LPG/CNG | Generac/Predator/Champion and more |
| Mikatesi Generator Propane Conversion Kit | Mikatesi | Propane/Gasoline/Natural Gas | Honda and other major series |
Nature Gas Propane Carburetor Conversion Kit

The ALLMOST Nature Gas Propane Carburetor Conversion Kit is designed to replace the stock carburetor on Predator Harbor Freight generators in the 3200–4000 watt range. The kit includes a carburetor assembly and three gaskets, providing a straightforward swap for users aiming to convert from gasoline to propane. Its emphasis on compatibility with common mid-range gasoline generators makes it a practical option for home backup scenarios. Installation is described as user-friendly, with emphasis on maintaining reliable operation after the swap. Appropriate for users seeking a simple pathway to tri-fuel or propane-focused operation on compatible models.
Hutch Mountain Generator Propane Conversion Kit for Honda EU2200i

Overview
Hutch Mountain’s tri-fuel kit for the Honda EU2200i family enables propane, gasoline, or natural gas operation. It targets not only home backup use but also RV and camping scenarios, offering broad compatibility and flexible fuel options. The kit’s description highlights cleaner energy benefits, including reduced ethanol gum buildup and easier maintenance, thanks to propane and natural gas use. This solution is well-suited for users who prioritize long-term storage stability and versatility across multiple fuel sources, particularly in outdoor or remote settings where fuel availability can vary.
New Manual Choke Dual Fuel Carburetor LPG NG Conversion Kit

LEIMO KPARTS offers a dual-fuel carburetor designed for LPG/CNG and gasoline conversions, targeting 5kW GX390-class generators. The kit supports a wide output range of 4.5–5.5kW, making it applicable for mid-power applications. It emphasizes flexibility for users who want easy fuel switching and expanded fuel compatibility. The included components are designed to facilitate installation with standard popular generator models, improving reliability for emergency power or outdoor use where fuel options may vary.
YAMAKATO 389cc–Tri Dual Generator Carburetor Kit

YAMAKATO’s tri-fuel carb kit targets multiple displacement ranges (389cc–459cc) and supports Generac, Predator, Champion, and Honda platforms. It provides dual or tri-fuel capability with non-asbestos mounting gaskets, an OEM-quality replacement option. The kit is marketed for generators commonly used in home backup and outdoor settings, including Generac GP models and various Champion units. Users seeking a widely compatible, OEM-leaning kit that enables seamless fuel switching will find this option appealing, with emphasis on ease of installation and reliable performance across brands.
Mikatesi Generator Propane Conversion Kit

The Mikatesi propane conversion kit targets Honda and other series with tri-fuel capabilities. It highlights compatibility with multiple small-to-mid-size generators and emphasizes that the kit is suitable for low-pressure propane or natural gas operation. The description notes it as a practical backup solution for homes, camping, and RV use, ensuring operation with propane and natural gas in addition to gasoline. This option is positioned for users seeking broad compatibility and a fairly straightforward installation path for tri-fuel operation on popular generator lines.
YAMAKATO Dual Tri Fuel Carburetor for Predator Generators

YAMAKATO’s dual/tri-fuel carburetor option targets Predator, Honda GX series, Generac, Champion, and other popular models. This kit emphasizes compatibility with various 160–224cc engines and 196–224cc displacement ranges, offering a wide range of options for gasoline-to-propane conversions. Included non-asbestos mounting gaskets support a gasketed fit, while OEM-quality construction promises reliable performance. Best for users who own multiple generator brands and seek a single kit that supports a broad family of engines and fuel options.
Buying Guide: Key Purchase Considerations
- Generator compatibility: Confirm that the kit matches your specific model and displacement. Some kits are marketed as broadly compatible, but fitment can vary by brand and engine size.
- Fuel options: Decide whether you want tri-fuel capability (gasoline, propane, natural gas) or dual-fuel (gasoline and propane), based on fuel availability and storage considerations in your area.
- Installation complexity: Look for kits with clearly written instructions, included mounting hardware, and gasket sets. Some kits are simple carburetor swaps; others require more extensive changes.
- Maintenance and durability: Propane and natural gas typically burn cleaner and can reduce carburetor gum buildup. Consider kits that emphasize these maintenance benefits.
- Storage and safety: Ensure that propane or natural gas components are rated for garage or outdoor storage and that the kit includes safety features such as proper venting and secure fuel lines.
- Warranty and support: Check for manufacturer warranties and access to customer support in case of installation questions or performance issues.
- Cost vs. benefit: Weigh the price against your need for fuel flexibility, potential maintenance savings, and long-term reliability in emergencies or outdoor use.
When selecting a conversion kit, prioritize compatibility with your generator’s model and displacement, and consider how you’ll use the fuel types in your region. The right kit can extend generator life, improve fuel resilience, and provide flexibility for home backup, RV trips, camping, and remote work scenarios.