Best Gas Generator Conversion Kits for Tri-Fuel Power
Looking to expand your generator’s fuel options beyond gasoline? A tri-fuel or dual-fuel conversion kit lets you run your inverter or portable generator on propane or natural gas, in addition to gasoline. This guide highlights five reliable options suited to different generator makes and user needs. The top picks are ideal for home backups, RVs, camping, or job sites where fuel availability varies. Each option is evaluated for ease of use, fuel flexibility, and potential limitations to help you choose.
| Product | Fuel Types | Best For | Notes |
|---|---|---|---|
| Grenergy EU2200i Tri Fuel Conversion Kit | Gasoline, Propane, Natural Gas | Honda EU2200i users needing reliable propane/NG support | Preset to propane out of box; carburetor remains unmodified |
| Hutch Mountain Propane Conversion Kit (EU2200i) | Gasoline, Propane | Home backup and RV use with clean operation | Double-fuel option; emphasizes cleaner fuel and long-term storage |
| YAMAKATO Dual/Tri Fuel Carburetor Kit (General) | Gasoline, LPG, LNG, CNG | Multiple Generac/Champion/Predator style units | OEM-style carburetor kit; broad model compatibility |
| Grenergy EU2000i Tri Fuel Conversion Kit | Gasoline, Propane, Natural Gas | Grenergy-equipped 2000/2000i fans; portable use | Complete kit; easy bolt-on |
| KELKONG GX390 LPG/NG Conversion Kit | Gasoline, LPG, NG | Predator/Honda GX engines; robust dual/tri-fuel option | Includes safety-friendly carburetor design |
Grenergy EU2200i Tri Fuel Conversion Kit — Grenergy
The Grenergy EU2200i Tri Fuel Conversion Kit is a complete, ready-to-use solution for converting a Honda EU2200i inverter generator to run on propane, natural gas, or gasoline. The kit is described as 100% complete and preset for propane, with no modifications required to the factory carburetor. It aims to simplify long-term storage and emergency readiness by enabling an alternative fuel source that can be easier to source during outages. Best for: users who want a straightforward, bolt-on tri-fuel option for their Honda EU2200i and prioritize quick deployment in emergencies. Limitation: detailed compatibility with non-EU2200i models isn’t specified beyond the listed fitment, so confirm your generator is compatible before purchasing.
Hutch Mountain Propane Conversion Kit — EU2200i
Hutch Mountain offers a dual-fuel option designed to work with Honda EU2200i portable generators, enabling use with propane or gasoline. The kit emphasizes cleaner energy and reduced maintenance, aided by features like a propane carburetor elimination switch. It is described as RV-compatible, with 20/30-lb propane tank adaptability and a hose-ready RV quick-connect option. Best for: campers, RV owners, and home backup users who value cleaner operation and straightforward installation. Limitation: the description notes compatibility with the EU2200i, and users of other models should verify compatibility before purchase.
YAMAKATO Dual Tri Fuel Carburetor Kit — General
YAMAKATO’s dual/tri-fuel carburetor kit is described for a wide range of Generac, Champion, Honda GX-series, and other models. It targets generators from 196cc to 459cc displacement and provides non-asbestos mounting gaskets. Best for: users who own a mix of Generac or Champion models or engines in the 160–460cc range and want broad compatibility. Limitation: the listing notes extensive model coverage with some Champion models only, so verify exact compatibility with your generator’s model and displacement.
KELKONG GX390 LPG/NG Conversion Kit
KELKONG’s LPG/NG conversion kit targets Predator, Honda, and clone GX engines, including GX270, GX340, GX390 varieties, and Generac/WH-series. It advertises a safety-conscious carburetor design and a robust mounting approach, making it a versatile option for users with a range of engine sizes. Best for: owners of GX-series engines seeking a durable, multi-fuel carburetor upgrade. Limitation: the kit is positioned for multiple engine families, so precise fit must be checked against your exact model and displacement.
Buying Guide — Key Considerations For Fuel-Flexibility Upgrades
- Engine compatibility: Verify your generator’s exact model, displacement, and carburetor type before purchasing any kit. Some kits advertise broad compatibility but may require adapters or modifications for certain models.
- Fuel availability and storage: Propane and natural gas are often more stable for emergency storage. Consider your typical power needs and whether you have ready access to a propane tank or natural gas supply.
- Installation ease: Look for bolt-on kits that claim no carburetor modification. Kits that require cutting, drilling, or professional calibration may increase setup time and cost.
- Maintenance impact: Some kits include features to reduce carburetor gum buildup and ethanol-related issues. This can extend the life of the unit between tune-ups.
- Weight and portablility: Some tri-fuel kits add weight or affect vibration. If you rely on portability, factor in any additional mass.
- Safety and warranties: Ensure the kit’s safety design aligns with your local regulations. Check whether installation affects the generator’s warranty or any local safety certifications.
Frequently Asked Questions
- Are tri-fuel kits universal for all generators?
Answer: No. Kits are model-specific or cover a range of engine families. Always verify compatibility with your exact generator model and displacement before buying. - Is propane or natural gas better for generator longevity?
Answer: Propane and natural gas generally burn cleaner than gasoline, reducing carburetor gum buildup and maintenance needs, but the choice depends on fuel availability and storage options. - Do tri-fuel conversions require professional installation?
Answer: Many are designed for DIY bolt-on installation, but some models may require professional setup, especially if wiring or fuel line routing is involved. - Will converting affect my generator’s performance?
Answer: Performance can vary by kit and engine. Some kits emphasize smoother idle and reduced fuel variability, while others focus on maximizing fuel options during emergencies. - Can I switch back to gasoline easily?
Answer: Most kits retain gasoline compatibility and allow quick return by reconnecting the original hoses, though procedures vary by model.