Best LPG Conversion Kits for Generators: Top Options for Gas to LPG
For owners seeking reliable fuel flexibility, LPG (propane) conversion kits offer a practical way to run portable generators on propane or natural gas. This guide highlights five high‑quality kits from reputable brands, focusing on compatibility with common GX engines, Generac, Champion, and Honda variants. Each option balances ease of installation, fuel efficiency, and OEM‑style components to support safe, stable performance across multiple power needs.
| Product | Brand | Key Benefit |
|---|---|---|
| YAMAKATO Dual Tri Fuel Carburetor Kit | YAMAKATO | Tri‑fuel flexibility for diverse generators |
| New Manual Choke Dual Fuel Carburetor — LPG/NG | LEIMO KPARTS | Compact dual‑fuel solution for GX390 |
| AUTOKAY Dual Fuel Carburetor — LPG/NG | AUTOKAY | High output for 4.5–5.5 kW range |
| HIPA GX390 Dual Fuel Conversion Kit | Hipa | GX390 compatibility with dual fuels |
| Grenergy Tri‑Fuel Kits for EU Inverters | Grenergy | Propane and natural gas ready, plugin ease |
YAMAKATO Dual Tri Fuel Carburetor Kit For Predators And Generac
The YAMAKATO kit provides tri‑fuel compatibility for several GX 160–224 cc engines and many Champion, Generac, and Honda variants. The package includes non‑asbestos mounting gaskets and is designed to convert gasoline generators to natural gas or LPG. It targets OEM‑quality performance across a wide displacement range (196–224 cc) and is suitable for select Champion and GX clones. Engineered to support safe operation with tri‑fuel capability, it emphasizes reliable ignition and fuel management for emergency or recreational use.
New Manual Choke Dual Fuel Carburetor — LPG/NG
This dual‑fuel carburetor is designed for 4.5–5.5 kW GX390 188F generators. It supports LPG/CNG conversion and covers a broad fitment range, enabling users to switch between gasoline and LPG with ease. The kit emphasizes practical installation for small to mid‑sized generators while delivering steady output in its stated range. Suitable for owners seeking a compact, versatile conversion option for home backup power needs.
AUTOKAY Dual Fuel Carburetor For GX390 — LPG/NG
AUTOKAY’s kit lists a rated output around 5,000 W with a maximum of 5,500 W and targets GX390 188F portable gasoline generators. It notes LPG/NG conversion capability and emphasizes efficient fuel use. The kit is positioned for users who want a robust dual‑fuel option that sustains power for typical residential backup loads without requiring extensive modifications to the engine. It aligns with common GX390 families and similar 4.5–6 kW ranges.
HIPA GX390 Dual Fuel Conversion Kit
Hipa’s dual fuel kit targets GX390 188F portable generators, offering propane and natural gas options. The kit provides a 4.5–5.5 kW output range, suitable for home backup and small shops. It emphasizes compatibility with the GX390 carburetor and mentions Predator and other compatible engines. This option suits users who want a dependable, mid‑range kit with straightforward installation and dual‑fuel flexibility.
YAMAKATO 389cc–459cc Tri Dual Generator Carburetor Kit
YAMAKATO’s larger Tri fuel kit targets a wide range of engines from 389cc to 459cc, including Generac, Champion, Honda, and clone models. It supports LPG LNG CNG conversions and ships with non‑asbestos mounting gaskets. The kit is positioned for users with larger displacement generators who want a turnkey tri‑fuel solution capable of running on multiple fuels with OEM‑quality components and broad engine compatibility.
Grenergy EU2200i Propane, Natural Gas & Gasoline Kit
Grenergy’s EU2200i kit is designed for Honda EU2200i and similar inverter generators, delivering a complete tri‑fuel solution with propane ready out of the box. It emphasizes no carburetor modifications and easy switch between gasoline and propane, with natural gas readiness as an option. The kit is aimed at users seeking an all‑in‑one, plug‑and‑play upgrade for reliable emergency power and portable use, especially in situations where LPG availability is critical.
Grenergy EU3000is Propane, Natural Gas & Gasoline Kit
Grenergy’s EU3000is kit offers a no‑drill lower panel design for quick access to quick disconnects, making installation user‑friendly. It maintains factory power output on propane and supports natural gas readiness with optional hoses and fittings. This kit is suitable for users who want a reliable, inverter‑style generator upgrade with straightforward serviceability and efficient fuel switching for travels or remote work sites.
Buying Guide: Key Considerations For LPG Conversion Kits
- Engine compatibility: Check the kit’s listed engine displacements and model families (GX270/ GX340/ GX390, Generac GP series, Champion, etc.).
- Fuel compatibility: Confirm dual‑fuel or tri‑fuel capabilities (gasoline, LPG, CNG/natural gas) and any recommended gas pressures or hoses.
- Installation effort: Assess whether the kit is designed for simple bolt‑on installation or requires carburetor modification, mounting, or extra gaskets.
- Manufacturing quality: Look for OEM‑quality components, non‑asbestos gaskets, and robust safety features in carburetor design.
- Emergency preparedness: A kit with propane/NG availability benefits long‑term storage and disaster readiness.
- Output targets: Compare the expected power range (4.5–5.5 kW, 5–6 kW, or higher) to your generator’s rated load.
- Warranty and support: Consider brands offering clear warranties and accessible customer support for troubleshooting.
- Infrastructure considerations: Ensure you have access to LPG or natural gas supply and space for hose routing and mounting.
- Maintenance implications: Some kits include ready‑to‑install components that minimize long‑term maintenance, while others may require periodic carburetor tuning.