Best Diesel-to-Natural-Gas Conversion Kit Options for Generators
If you want to harness natural gas without abandoning your diesel-powered or gasoline backup, a conversion kit can let you switch fuels with minimal downtime. This guide highlights five commercially available kits that align with popular XP and other gas-powered generators, focusing on ease of installation, reversibility, and fuel flexibility. The best pickers are suited for homeowners seeking backup power, DIY enthusiasts wanting fuel diversification, and emergency-preparedness buyers aiming to store a stable fuel option. Below is a quick buyer snapshot to help compare core features at a glance.
| Product | Best For | Key Benefit |
|---|---|---|
| Natural Gas Conversion Kit for Duromax XP12000EH | Duromax XP12000EH owners | Retains gasoline capability, no permanent carb changes |
| Westinghouse WGEN9500DF Natural Gas Kit | Westinghouse DF models | Simple port-based natural gas inlet |
| EU2200i Tri-Fuel Kit for Honda Inverter | Honda EU2200i users | Propane, natural gas, and gasoline in one kit |
| Duromax XP13000EH Natural Gas Kit | Duromax XP13000EH users | No permanent carb modifications, reversible |
| YAMAKATO Tri-Fuel Carb Kit for Various Generators | Multiple brands including Generac and Champion | Wide compatibility with several displacement ranges |
Natural Gas Conversion Kit for Duromax XP12000EH
Best for Duromax XP12000EH owners who want to add low-pressure natural gas capability without sacrificing gasoline option. The kit uses an existing carburetor port for the natural gas inlet and does not require permanent modifications, keeping the original gasoline setup intact for quick switching. It is designed to work with low-pressure natural gas and specifically references the XP12000EH model. A potential limitation is the need to reconnect the stock propane hose when returning to propane or gasoline, which adds a small reassembly step during conversions.
Natural Gas Conversion Kit for Westinghouse WGEN9500DF
This kit targets Westinghouse WGEN9500DF generators, offering a straightforward natural gas inlet via an existing carburetor port. No permanent carburetor changes are required, and the system preserves the ability to run gasoline. It provides a simple switch back to propane by reconnecting the stock propane hose. Best for Westinghouse DF users who want flexible fuel options with minimal downtime during transitions; a possible drawback is the focus on a single model line, limiting cross-compatibility with other brands.
EU2200i Tri Fuel Kit for Honda Inverter
Best for Honda EU2200i inverter users seeking a complete tri-fuel solution. This kit comes as a 100% complete package and starts ready to run on propane, with no modifications to the factory carburetor required. It allows easy switching between gasoline and propane, which can be advantageous during emergencies when propane is more accessible. A noted consideration is that the kit emphasizes propane readiness out of the box, which may differ slightly from other kits that emphasize natural gas first. It also highlights carburetor-friendly storage benefits to reduce gumming risk during long storage.
Natural Gas Conversion Kit for Duromax XP13000EH
This kit is designed for Duromax XP13000EH and uses an existing carburetor inlet port for natural gas, preserving the ability to run gasoline with no permanent modifications. Reconnection of the stock propane hose enables a quick return to propane or gasoline. Best for XP13000EH users who want a reversible, non-destructive modification path that keeps original fuel capabilities intact. The main caveat is the kit’s specific model focus, which means other Duromax models may require a different kit version or confirmation of compatibility.
YAMAKATO Tri-Fuel Carb Kit for Generators
Best for mixed-brand and multi-displacement setups, this kit covers a broad range of engines and generac/champion models, including GX160/200 and several 196cc–224cc variants. It supports tri-fuel operation with natural gas, propane, and gasoline, making it suitable for diverse inventories or households with multiple generator types. The kit includes non-asbestos mounting gaskets. A limitation is the broad compatibility claims, which may require verification for specific generator combinations before purchasing.
Buying Guide
Fuel flexibility: Choose a kit that explicitly supports your model and provides easy, reversible switching between fuels without permanent carburetor changes.
Compatibility: Confirm model compatibility with your generator’s make and displacement. Wider tri-fuel kits are convenient but may require extra steps for exact fitment.
Installation complexity: Look for kits that use existing carburetor ports and offer straightforward reassembly to minimize downtime during conversions.
Storage and maintenance: Some kits emphasize safe long-term storage of propane, or anti-gumming features for carburetors. Consider your storage conditions and anticipated emergency scenarios.
Caution and limitations: Be aware that some kits target specific models and brands; cross-compatibility may be limited. Always follow manufacturer instructions for installation and switching between fuels.
Frequently Asked Questions
- Do these kits require permanent modification to my generator?
Most listed kits are designed to be non-permanent, using existing carburetor ports to minimize downtime and keep original fuel options intact.
- Can I switch between natural gas and gasoline quickly?
Yes, most kits emphasize reversible changes, with a simple reconnection or bolt-on/bolt-off approach to transition fuels.
- Are tri-fuel kits compatible with all generators?
Tri-fuel kits vary by model. Check the specific kit’s compatibility list for engines and displacement ranges.
- What is the best kit for emergency preparedness?
Tri-fuel kits that provide propane readiness and non-permanent modifications are advantageous for emergency scenarios with propane supply.
- Do these kits affect warranty or safety certifications?
Installing such kits can affect warranties; always verify with the generator manufacturer and kit provider before purchase.