Best Natural Gas Generator Conversion Kits for Generators in 2026
Answer: If you want to convert a generator to run on natural gas with minimal modification, these kits provide bolt-on or near-bolt-on options that preserve gasoline capability. They are best for homeowners seeking safer, readily available fuel and preparedness for power outages. This guide focuses on five well-rounded options, highlighting what each kit does best, who should choose it, and any limitations.
| Product | Best For | Notes |
|---|---|---|
| Natural Gas Conversion Kit Compatible with Duromax XP12000EH | Duromax XP12000EH users needing a low-mod, dual-fuel setup | Uses existing carburetor port; revert to gasoline easily |
| Grenergy EU2200i Propane, Natural Gas & Gasoline Tri Fuel Kit | Compact inverter generators seeking ready-to-go tri-fuel capability | No carburetor modifications; propane out of the box |
| YAMAKATO Dual Tri Fuel Carb Kit for Various Generators | Wide range of brand-model combos needing flexible fuel options | OEM-style kit; supports multiple CC sizes and models |
| Natural Gas Conversion Kit fits Westinghouse WGEN9500DF | Westinghouse WGEN9500DF users seeking a simple port-based conversion | Preserves gasoline capability; requires no permanent carburetor modification |
| Propane Natural Gas Conversion Fits Generac 6500 Series | Generac 6500 Series owners needing low-pressure natural gas and propane | Low pressure kit; case modification may be required for extra hoses |
Natural Gas Conversion Kit For Duromax XP12000EH
Best for: Duromax XP12000EH owners who want a quick, reversible natural gas option. The kit uses a natural gas inlet on the existing carburetor port, preserving gasoline capability and allowing an easy switch back to propane via the stock hose. Notable limitation: essential to ensure compatibility with the XP12000EH platform and correct reinstall of the propane line after switching.
Grenergy Tri Fuel Kit For Honda/Xtra Generators
Best for: Inverter-style generators needing immediate tri-fuel capability with minimal carburetor work. This kit comes preset for propane but supports natural gas, offering flexibility when fuel availability changes. Caution: long-term storage considerations for propane and gas may vary by model; ensure the kit aligns with your exact generator model to avoid fit issues.
YAMAKATO Tri Fuel Carb Kit For Generators
Best for: A broad set of Generac, Predator, Champion, and Huayi-clone generators needing tri-fuel conversion. The kit supports multiple CC sizes and engines, providing OEM-quality mounting gaskets and carburetor compatibility. Limitation: compatibility varies by model; check exact displacement and carburetor layout before purchasing.
Natural Gas Kit For Westinghouse WGEN9500DF
Best for: Westinghouse WGEN9500DF owners seeking a straightforward port-based natural gas conversion with gasoline-reversion. The kit preserves existing gasoline functionality and allows an easy switch back to propane. Caution: verify port compatibility with your exact WGEN9500DF unit if you have recent production runs.
Propane Natural Gas Conversion Fits Generac 6500 Series
Best for: Generac 6500 Series users who want to run on low-pressure natural gas and propane with a single kit. The kit supports multiple fuels but notes a case modification may be required for the alternative fuel supply hose. Choose this if you own a 6500-series model and want fuel flexibility with minimal engine disruption.
Buying Guide
What should I consider before buying a natural gas conversion kit?
- Compatibility: Check your generator’s exact model and displacement. Some kits are built for specific engines and may not fit others without additional adapters.
- Fuel options: Decide if you need true tri-fuel capability (gasoline, natural gas, propane) or a single alternative fuel. Tri-fuel kits offer more flexibility during outages.
- Carburetor impact: Some kits require no permanent carburetor modification, while others need adapter hardware. Consider ease of installation and reversibility.
- Storage and safety: Natural gas and propane storage practices differ. Ensure you follow local codes and manufacturer guidance for long-term storage and leak prevention.
- Maintenance: Some kits include features to prevent carburetor gumming and fuel residue. This can influence long-term reliability in emergency storage scenarios.
- Installation effort: Evaluate whether you are comfortable with a bolt-on installation or if professional installation is advisable to preserve warranty and ensure proper fuel mix.
FAQ
- Q: Do these kits permanently modify the generator? A: Most kits are designed to be reversible, using existing ports and hoses to retain gasoline capability.
- Q: Is natural gas safer than propane for backup power? A: Both are generally safe when installed correctly; natural gas is often easier to pipe to a home but check local codes.
- Q: Will these kits work with any generator? A: Not universally; each kit targets specific brands and models. Verify compatibility with your exact generator model and displacement.
- Q: Do I need professional installation? A: For complex models or to preserve warranties, professional installation is recommended, especially when modifying fuel lines.
- Q: Can I store the kit long-term? A: Yes, but follow manufacturer guidance for fuel storage and carburetor care, particularly to prevent gumming or varnish buildup.
- Q: Will the generator run on all three fuels at once? A: No; most tri-fuel kits switch between fuels as needed, not simultaneously.