Best Gasoline to Propane Conversion Kit for Generator: Top Options for Flexible Fueling
If you’re looking to run a generator on propane, natural gas, or gasoline, these conversion kits help you switch fuels without changing the core engine. This guide targets buyers who want reliable, multi-fuel capability for home backup power, camping, RVs, or job sites. The top picks below are selected for compatibility with common generator brands and engines, ease of installation, and practical fuel-switch features. A compact summary table appears after the introduction to help you compare quickly.
| Product | Best For | Notes |
|---|---|---|
| Hipa 389cc/420cc Tri Dual Kit | Champion, Predator, Generac, Honda engines | 3-position rotary switch; compatible with multiple cc ratings |
| Hutch Mountain Dual-Fuel EU2200i Kit | Honda EU2200i and similar | Two fuel options; RV and camping friendly |
| Grenergy EU2200i Tri Fuel Kit | Honda EU2200i and similar | Propane ready out of the box; no carburetor mods |
| Nashfuel GP5500/GP7500 Style Kit | GP5500/GP7500 and similar | Low-pressure natural gas operation; venturi design |
| YAMAKATO Tri Fuel For Generac/Predator/Champion | Generac, Predator, Champion, Duromax | OEM-grade kit; wide engine compatibility |
Hipa 389cc 420cc Tri Dual Generator Carburetor Propane Conversion Kit
This kit supports running on gasoline, propane (LPG), and natural gas (CNG). It uses a 3-position rotary switch with an OFF setting to help prevent leaks and includes a manual choke lever for reliable cold starts. It’s designed for Honda GX340/GX390 engines and clones and is compatible with Champion and Predator generators in the listed cc ranges, as well as certain Generac GP series units. Best for users seeking a direct replacement carburetor and broad compatibility.
Best for: users with Champion, Predator, or Generac GP series generators who want a straightforward swap without extensive carburetor modification. The kit’s explicit engine compatibility makes it a practical pick for multi-brand setups.
Caution: verify exact model compatibility with your generator’s carburetor mounting and intake configuration before ordering; installation may require basic mechanical skill.
Hutch Mountain Generator Propane Conversion Kit for EU2200i
Two-fuel compatibility with Honda EU2200i generators makes this kit ideal for home backup, RV usage, and camping. It supports propane and gasoline, offering cleaner energy and reduced carburetor gum buildup thanks to a propane-centric design. It also supports standard RV propane connections, which is convenient for outdoor enthusiasts and travelers.
Best for: owners of Honda EU2200i or similar models who want a portable, dual-fuel solution with RV-ready propane options. The kit suits frequent campers and weekend power users seeking longer storage stability for propane.
Caution: while propane storage is convenient, ensure you have appropriate gas fittings and hoses for safe hookups to your specific RV or outdoor setup.
Grenergy EU2200i Propane, Natural Gas & Gasoline Tri Fuel Kit
This complete kit is preset to run on propane out of the box, with no factory carburetor modifications required. It’s designed for easy switching among gasoline, propane, and natural gas, helping generators run during emergencies when fuel availability may vary. The kit emphasizes carburetor-friendly operation and long-term storage benefits by reducing gum buildup when using propane.
Best for: users who want a fuss-free, propane-first option with the flexibility to switch to gasoline or natural gas when needed. It’s especially suitable for disaster preparedness and remote operations where fuel options vary.
Caution: ensure your generator’s exact model and carburetor type are compatible with this Grenergy kit before purchase to avoid fitment issues.
Nashfuel Tri-Fuel Conversion Kit for GP5500 Generators
Designed for GP5500 and GP7500 style Generac generators, this kit supports low-pressure natural gas, propane, or gasoline. A unique venturi design enables installation without significant generator modification, provided the inlet pressure falls within 9-13.8″ wc. The kit is positioned for users needing stable multi-fuel performance on larger portable generators.
Best for: owners of GP5500/GP7500 and similar units who want a simple, non-invasive natural gas option alongside propane and gasoline. It’s a practical middle-ground choice for mid-to-large portable generators.
Caution: check your inlet pressure and ensure your system can safely accommodate low-pressure natural gas supply to avoid performance issues.
YAMAKATO 389cc/420cc Tri Fuel Kit for Generac, Predator, Champion
This OEM-quality kit supports tri-fuel operation for a wide range of engines, including Generac GP5000/GP5500 and Champion models, across multiple cc ratings. It’s designed to convert gasoline to LPG, LNG, or CNG with mounting gaskets included. The kit’s extensive compatibility makes it a versatile option for mixed-brand fleets.
Best for: buyers with Generac, Predator, or Champion generators who want broad compatibility across many cc ranges and displacement variants. It’s a strong pick for multi-generator setups requiring a single solution.
Caution: due to broad compatibility claims, confirm exact model compatibility with your unit’s carburetor and mounting dimensions before ordering to ensure a proper fit.
Buying Guide: Key Considerations For Fuel Flexibility
- Engine compatibility: Check the engine model and displacement to ensure the kit can mount to your carburetor and intake system.
- Fuel options: Decide whether you primarily need propane, with gasoline as a backup, or true tri-fuel capability including natural gas.
- Installation complexity: Some kits are direct carburetor swaps; others require more adapters or hoses. Consider your mechanical skills or professional installation needs.
- Storage and handling: Propane and natural gas storage considerations affect long-term reliability and maintenance. Propane’s shelf life is a practical benefit.
- Safety features: Look for locking or OFF settings, proper venting, and secure choke mechanisms to minimize leaks and misfires.
- Portability and use case: Camping, RVs, or home backup have different priorities, such as weight, compactness, and hose compatibility.
Frequently Asked Questions
- Do these kits require professional installation? Some kits are user-installable, while others may benefit from professional service especially for gas line connections.
- Will a tri-fuel kit void generator warranty? It depends on the manufacturer and warranty terms; verify with the generator maker before installation.
- Can I run a generator on natural gas with these kits? Yes, many kits support natural gas in addition to propane and gasoline, though inlet pressure and local supply must be considered.
- Is propane storage safe for long-term use with generators? Propane is generally stable with a long shelf life, reducing fuel degradation risk compared to ethanol-laden gasoline.
- Are all brands and models supported by a single kit? No, compatibility varies by engine type, carburetor mounting, and displacement; always confirm model-specific fitment.
- What is the benefit of a 3-position rotary switch? It helps prevent leaks when switching fuels and provides a clear OFF position for safety.