For those seeking flexibility in fuel sources, the best tri fuel conversion kits for generators offer the ability to run on gasoline, propane, or natural gas. The EU2000i Propane, Natural Gas & Gasoline Tri Fuel Conversion Kit stands out as the top overall choice due to its compatibility with Honda inverter generators and ease of installation. The Hutch Mountain Tri-Fuel Conversion Kit is notable for its durability and suitability for larger portable models, while the Tri-Fuel Conversion Kit for GP5500 offers a budget-friendly option without sacrificing core functionality. Buyers must weigh factors like compatibility, installation complexity, and fuel switching efficiency. Continue reading for a detailed comparison to help you select the best kit for your generator and needs.
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Key Takeaways
- Top picks balance fuel versatility with ease of installation, making them suitable for both beginners and experienced users.
- Compatibility with specific generator models remains a key factor, with some kits designed for particular brands like Honda or Champion.
- Performance varies based on the quality of components, with premium kits offering smoother fuel switching and better durability.
- Price often correlates with features and build quality, but the most expensive isn’t always the best fit for every user.
- Ease of use and maintenance are critical, especially for those who plan to switch fuels frequently or perform DIY installation.
| 389cc 420cc Tri Dual Generator Carburetor Gas LPG CNG Conversion Kit |  | Best Overall for Versatility and Compatibility | Displacement: 389cc – 420cc | Fuel Types: Gasoline, LPG, LNG, CNG | Regulator Pressure: Natural gas: 0.29-0.37 psi, LPG: 0.40-0.55 psi | VIEW LATEST PRICE | See Our Full Breakdown |
| HIPA 389cc 420cc Tri Dual Generator Carburetor Propane Conversion Kit for Champion, Predator, Generac, Honda OHV Engines |  | Best for Wide Compatibility and Cold Weather Reliability | Engine Compatibility: Honda GX340, GX390, GX420, GX460, clones | Fuel Types: Gasoline, Propane (LPG), Natural Gas (CNG) | Part Numbers: Champion 338cc, 389cc, 439cc | VIEW LATEST PRICE | See Our Full Breakdown |
| EU2000i Propane, Natural Gas & Gasoline Tri Fuel Conversion Kit for Honda Generator Inverter LPG CNG |  | Best for Honda EU2000i Owners Seeking Easy Switching | Fuel Types: Propane, Natural Gas, Gasoline | Compatibility: Honda EU2000i | Includes: Complete conversion kit | VIEW LATEST PRICE | See Our Full Breakdown |
| Hutch Mountain Tri-Fuel Conversion Kit for Honda EU3000is Portable Generator |  | Best for Easy Installation and Versatile Use | Compatibility: Honda EU3000is | Fuel Types: Gasoline, Propane, Natural Gas | Length of Hose: 10 feet | VIEW LATEST PRICE | See Our Full Breakdown |
| EU3000is Propane, Natural Gas & Gasoline Tri Fuel Conversion Kit for Honda Generator Inverter LPG CNG |  | Best for Easy, No-Drill Installation on EU3000is | Compatibility: Honda EU3000is | Fuel Types: Propane, Natural Gas, Gasoline | Installation: Bolt-on, no drilling | VIEW LATEST PRICE | See Our Full Breakdown |
| Tri-Fuel Conversion Kit for GP5500 Generators (Propane, Natural Gas, Gasoline) |  | Best for Compatibility and Ease of Installation | Compatible Models: GP5500 | Fuel Types: Natural Gas, Propane, Gasoline | Inlet Pressure: 9-13.8″wc | VIEW LATEST PRICE | See Our Full Breakdown |
| tri fuel conversion kits for generator | Fuel Types | Includes | Compatibility |
|---|---|---|---|
| 389cc 420cc Tri Dual Generator | Gasoline, LPG, LNG, CNG | Mounting gaskets | — |
| HIPA 389cc 420cc Tri Dual Gene | Gasoline, Propane (LPG), Natural Gas (CNG) | — | — |
| EU2000i Propane | Propane, Natural Gas, Gasoline | Complete conversion kit | Honda EU2000i |
| Hutch Mountain Tri-Fuel Conver | Gasoline, Propane, Natural Gas | Regulator bracket, quick-connect fittings | Honda EU3000is |
| EU3000is Propane | Propane, Natural Gas, Gasoline | Hoses and fittings (additional fittings sold separately) | Honda EU3000is |
| Tri-Fuel Conversion Kit for GP | Natural Gas, Propane, Gasoline | — | — |
More Details on Our Top Picks
389cc 420cc Tri Dual Generator Carburetor Gas LPG CNG Conversion Kit
This tri-fuel kit stands out for its broad compatibility with many generator brands like Honda, Generac, and Champion, making it a flexible choice for owners with different models. Compared to the EU2000i or EU3000is kits, this option supports a wider range of engine sizes and fuel types, including LNG, which adds to its versatility. However, it requires some mechanical skill to install correctly and doesn’t feature automatic regulation, meaning safe operation depends on proper pressure regulation. This kit is ideal for those comfortable with DIY projects who want a reliable, OEM-quality solution for multiple fuel options.
Pros:- Compatible with many generator models and engine sizes
- Supports multiple fuel types including natural gas and LPG
- OEM quality with included mounting gaskets
Cons:- Requires basic mechanical skills for installation
- No automatic regulation—must manually set pressure
Best for: Generators owners seeking maximum compatibility and fuel flexibility, especially with various engine models or DIY experience.
Not ideal for: Beginners or those uncomfortable with mechanical installation, as proper pressure regulation and assembly are necessary.
- Displacement:389cc – 420cc
- Fuel Types:Gasoline, LPG, LNG, CNG
- Regulator Pressure:Natural gas: 0.29-0.37 psi, LPG: 0.40-0.55 psi
- Includes:Mounting gaskets
Our verdict“This kit suits experienced users who want a durable, multi-fuel solution for a variety of generator brands.”
HIPA 389cc 420cc Tri Dual Generator Carburetor Propane Conversion Kit for Champion, Predator, Generac, Honda OHV Engines
This kit is well-suited for owners with Honda GX-series engines or similar, offering the convenience of a manual choke and a 3-position rotary switch for easy fuel switching. Compared to the EU2000i or EU3000is kits, it covers a broad range of engine sizes and generator brands, including Predator and Generac models. The manual choke feature ensures reliable cold starts, but it limits ease of use for less experienced users. Best for those who prioritize compatibility and reliable cold weather operation, but installation may be more technical, especially verifying engine fit.
Pros:- Supports gasoline, propane, and natural gas
- Includes a manual choke for dependable cold starts
- Compatible with multiple brands including Predator and Generac
Cons:- Compatibility depends on engine displacement and space
- Installation can be complex and require technical skills
Best for: Owners of Honda GX engines or similar models seeking versatile fuel options with reliable cold starts.
Not ideal for: Novice users or those with generator models outside the specified engine sizes, as compatibility verification is essential.
- Engine Compatibility:Honda GX340, GX390, GX420, GX460, clones
- Fuel Types:Gasoline, Propane (LPG), Natural Gas (CNG)
- Part Numbers:Champion 338cc, 389cc, 439cc
- Generator Compatibility:Predator 7000/7250/8750/9000, Generac GP Series
- Displacement Range:340cc-460cc
Our verdict“This kit is ideal for experienced DIYers with compatible engine models who want versatile fuel options and reliable cold starts.”
EU2000i Propane, Natural Gas & Gasoline Tri Fuel Conversion Kit for Honda Generator Inverter LPG CNG
This kit offers a straightforward way for EU2000i owners to switch between propane, natural gas, and gasoline, providing extended run times and cleaner combustion. Compared to more complex kits like the EU3000is, it is limited to a single model but excels in simplicity and effectiveness for that platform. Installation is relatively simple but still requires some mechanical skills, and the kit does not support automatic switching—users must manually change fuels. It’s best for those wanting a quick upgrade to their Honda inverter generator for emergency or long-term use without extensive modifications.
Pros:- Supports propane, natural gas, and gasoline
- Extends run time significantly
- Reduces engine deposits for longer engine life
Cons:- Installation requires effort and some mechanical skill
- Limited to Honda EU2000i models
Best for: Honda EU2000i owners wanting an easy-to-install, multi-fuel setup for emergency preparedness or extended use.
Not ideal for: Users with different generator models or those seeking automatic fuel switching, as this kit is specific and manual in operation.
- Fuel Types:Propane, Natural Gas, Gasoline
- Compatibility:Honda EU2000i
- Includes:Complete conversion kit
- Run Time:15-20 hours on a BBQ tank
Our verdict“Perfect for EU2000i owners eager for a reliable, multi-fuel solution that extends runtime and improves engine longevity.”
Hutch Mountain Tri-Fuel Conversion Kit for Honda EU3000is Portable Generator
This kit simplifies conversion with quick-connect fittings, making it easier for users to switch fuels on their EU3000is without extensive modifications. Compared to the EU3000is kit from Honda, it offers more flexibility and cleaner burning, which reduces maintenance concerns. Installation can take up to an hour but doesn’t require drilling or permanent modifications. It’s ideal for RV owners, emergency backup, and outdoor enthusiasts who want a convenient, versatile fuel solution without complex setup.
Pros:- Easy to install with quick-connect fittings
- Supports multiple fuels including propane and natural gas
- Reduces maintenance issues with cleaner fuels
- Suitable for outdoor, RV, and backup power use
Cons:- Installation may take up to an hour
- Additional upgrades and adapters are sold separately
Best for: RV owners and outdoor users seeking a quick, clean, and flexible fuel conversion kit for their EU3000is generator.
Not ideal for: Users who require a permanent, built-in solution or have limited mechanical skills, as some setup time is involved and additional upgrades may be sold separately.
- Compatibility:Honda EU3000is
- Fuel Types:Gasoline, Propane, Natural Gas
- Length of Hose:10 feet
- Includes:Regulator bracket, quick-connect fittings
Our verdict“This kit is well-suited for outdoor and RV users who want a quick, clean, and flexible fuel conversion option with minimal hassle.”
EU3000is Propane, Natural Gas & Gasoline Tri Fuel Conversion Kit for Honda Generator Inverter LPG CNG
This kit emphasizes user-friendliness, allowing Honda EU3000is owners to install without drilling or modifications, supporting full power output on propane. Compared with other kits requiring more extensive setup, this bolt-on solution is appealing for those who want quick installation and reliable performance. It offers cleaner combustion and longer engine life, but may require additional fittings for natural gas that are sold separately, adding some cost and complexity. It’s best for emergency preparedness and those who prefer a straightforward, no-drill approach.
Pros:- No drilling or modifications needed for installation
- Supports multiple fuels including propane and natural gas
- Promotes cleaner engine operation and longer lifespan
- Provides full power on propane
Cons:- Additional natural gas fittings may be needed
- Some components sold separately, increasing total cost
Best for: EU3000is owners seeking a simple, bolt-on fuel conversion kit that delivers full power and cleaner operation without modifications.
Not ideal for: Users wanting an integrated or permanent conversion, or those with different generator models that aren’t compatible with bolt-on kits.
- Compatibility:Honda EU3000is
- Fuel Types:Propane, Natural Gas, Gasoline
- Installation:Bolt-on, no drilling
- Includes:Hoses and fittings (additional fittings sold separately)
Our verdict“Ideal for EU3000is owners who want a quick, simple, no-drill conversion to multiple fuels with reliable performance.”
Tri-Fuel Conversion Kit for GP5500 Generators (Propane, Natural Gas, Gasoline)
This tri-fuel conversion kit stands out for its compatibility with the GP5500 generator and its user-friendly, no-modification installation process. The venturi design simplifies setup compared to more complex systems like the EU2000i kit, which may require additional adapters or modifications. Its support for low inlet pressures (9-13.8″wc) makes it suitable for a range of natural gas and propane supplies, but the specificity of inlet pressure means it might need extra regulators for certain setups. Compared to kits with universal design, this one offers a streamlined experience tailored to GP5500 owners, though it limits versatility to that model alone. The main tradeoff is its restricted compatibility, which could be a drawback if you own multiple generator types. This kit is ideal for owners of the GP5500 seeking a straightforward, reliable tri-fuel solution without extensive modifications.
Pros:- Easy installation with no modifications needed
- Supports low inlet pressure for flexible fuel sources
- Compatible specifically with GP5500 for a tailored fit
- Versatile fuel options including natural gas, propane, and gasoline
Cons:- Limited to the GP5500 model, reducing its versatility
- Requires specific inlet pressure range, possibly needing extra regulators
- Installation might be complicated if inlet pressure varies outside supported range
Best for: GP5500 owners who want a simple, reliable tri-fuel conversion without modifying their generator.
Not ideal for: Owners of other generator models or those needing a universal kit, as this is specifically designed for GP5500 and may require additional regulators in some setups.
- Compatible Models:GP5500
- Fuel Types:Natural Gas, Propane, Gasoline
- Inlet Pressure:9-13.8″wc
- Design:Venturi
- Installation:No modifications required
- Support:Supports low inlet pressures
Our verdict“This kit is best suited for GP5500 owners seeking a straightforward, efficient tri-fuel conversion with minimal hassle.”
How We Picked
These products were evaluated based on their compatibility with popular generator brands and models, ease of installation, build quality, and overall value. Performance in fuel switching, durability, and customer feedback also played a significant role. We prioritized kits that offer reliable operation across all three fuels—gasoline, propane, and natural gas—while considering user-friendliness for both DIY enthusiasts and professionals. The ranking reflects a balance between cost, features, and versatility, aiming to guide buyers toward options that meet a range of needs and technical skill levels.
| tri fuel conversion kits for generator | Fuel Types | Includes | Compatibility |
|---|---|---|---|
| 389cc 420cc Tri Dual Generator | Gasoline, LPG, LNG, CNG | Mounting gaskets | — |
| HIPA 389cc 420cc Tri Dual Gene | Gasoline, Propane (LPG), Natural Gas (CNG) | — | — |
| EU2000i Propane | Propane, Natural Gas, Gasoline | Complete conversion kit | Honda EU2000i |
| Hutch Mountain Tri-Fuel Conver | Gasoline, Propane, Natural Gas | Regulator bracket, quick-connect fittings | Honda EU3000is |
| EU3000is Propane | Propane, Natural Gas, Gasoline | Hoses and fittings (additional fittings sold separately) | Honda EU3000is |
| Tri-Fuel Conversion Kit for GP | Natural Gas, Propane, Gasoline | — | — |
Factors to Consider When Choosing Best Tri Fuel Conversion Kits For Generators
Choosing the best tri fuel conversion kit involves understanding key factors that impact performance, usability, and durability. Not all kits are created equal, so it’s important to evaluate your specific generator type and how you plan to use the kit. Consider these factors to make an informed decision that aligns with your technical skills and fuel preferences.Compatibility with Your Generator
Ensuring the kit is compatible with your specific generator make and model is essential. Some kits are designed for Honda inverter generators, while others fit larger or different brands like Champion or GP series. Mismatched kits can lead to installation issues or subpar performance. Always verify the manufacturer’s compatibility list before purchasing to avoid costly mistakes or the need for modifications.
Ease of Installation and Use
Look for kits that come with clear instructions and minimal wiring or parts. DIY installation can save money but may be challenging without technical skills. Some kits are designed for quick swaps between fuels, which is a major convenience for regular users. Consider your comfort level with mechanical work to choose a kit that matches your experience and patience.
Build Quality and Durability
High-quality components translate into longer-lasting performance and fewer maintenance issues. Cheaper kits may use lower-grade materials that degrade quickly or fail under frequent switching. Premium kits often feature better seals, corrosion-resistant parts, and reinforced connectors. Weighing cost against anticipated usage helps determine if investing in a more durable kit makes sense for your situation.
Fuel Switching Efficiency
Efficient fuel switching minimizes downtime and reduces wear on your generator. Some kits include automatic or semi-automatic systems, making transitions smoother. Others require manual adjustments, which can be inconvenient but more affordable. Consider how often you’ll switch fuels—frequent switching favors more sophisticated, automatic systems.
Cost and Value
Price varies widely, reflecting differences in features, build quality, and brand reputation. While budget options can be tempting, they may lack durability or ease of use. Conversely, premium kits often include extra features like automatic switching or enhanced materials but come at a higher cost. Balancing your budget with the desired performance and longevity is key to making a satisfying purchase.
Additional Considerations
Check if the kit includes all necessary components or if additional parts are required. Also, consider the availability of customer support and warranty services. Some kits are better suited for specific environments, such as outdoor or harsh conditions, so review environmental durability if relevant. Finally, ensure that the kit complies with local safety standards and regulations for fuel handling.
Frequently Asked Questions
Can I install a tri fuel conversion kit myself?
Many kits are designed for DIY installation, especially those with straightforward setups and clear instructions. However, some require mechanical skills or familiarity with generator systems. If you have basic tools and technical aptitude, you can often handle the installation, but for complex or automatic systems, professional help may be advisable to ensure safety and proper functionality.
Will a tri fuel kit void my generator’s warranty?
This depends on the manufacturer and specific generator model. Some brands explicitly state that aftermarket modifications, including fuel conversion kits, can void the warranty. It’s important to check your generator’s warranty policy and consult the manufacturer before installation. Using authorized or recommended kits can sometimes mitigate warranty concerns, or at least clarify your options.
Are tri fuel conversion kits safe to use regularly?
Yes, when properly installed and maintained, these kits are safe to use. They often include safety features like shutoff valves and secure fittings to prevent leaks. Regular inspection and maintenance are recommended to ensure seals and connectors remain in good condition. Always follow safety guidelines for handling propane and natural gas to prevent accidents.
How does fuel switching affect generator longevity?
Frequent switching between fuels can cause additional wear if the kit isn’t designed for easy transition or if components are of lower quality. Premium kits with automatic switching and high-grade materials tend to minimize stress on the generator, potentially extending its lifespan. Proper maintenance and gradual switching practices further help preserve your generator’s longevity.
What is the typical cost range for a tri fuel conversion kit?
Prices generally range from around $100 to over $300, depending on compatibility, features, and build quality. Basic kits suited for entry-level users tend to be more affordable, while premium options with automatic switching and high-end materials cost more. Investing in a higher-quality kit can be worthwhile if you plan frequent switching or rely heavily on your generator for critical needs.
Conclusion
For casual users or those new to fuel conversions, the EU2000i Propane, Natural Gas & Gasoline Tri Fuel Conversion Kit offers ease of use and reliable performance. The Hutch Mountain Tri-Fuel Conversion Kit makes sense for owners of larger Honda models seeking durability and straightforward installation. Budget-conscious buyers might prefer the Tri-Fuel Conversion Kit for GP5500 for its affordability. For professionals or heavy users, investing in a premium, automatic switching kit could provide greater convenience and longevity. Ultimately, your choice should align with your generator model, technical skills, and how often you’ll switch fuels.
