Turning Gas Mowers into Propane Powerhouses: A Smart, Sustainable Upgrade

Commercial landscapers and flooring contractors are increasingly choosing propane conversion kits—and it’s easy to see why. With rising gas prices, tougher emissions rules, and downtime concerns, propane is emerging as a cost-effective, environmentally friendly alternative to gasoline. For businesses using mowers, polishers, and grinders, these kits offer a practical way to switch fuels without replacing entire fleets.
What Is a Propane Conversion Kit?
A propane conversion kit is an aftermarket package that converts a gasoline-powered small engine into one that runs on propane. Instead of replacing your machines, you retrofit them using components like:
• Propane regulators and mixers
• Modified or replacement carburetors
• Fuel lines, mounting brackets, and tank fittings
These kits are engineered for commercial-grade equipment – zero-turn mowers, ride-on polishers, concrete grinders, and more – ensuring both compatibility and reliability.
Who Makes These Kits?
Several companies specialize in creating propane conversion kits tailored to well-known engine brands:
• Alliance Small Engines: Works with Kawasaki, Kohler, and Honda engines often found in mowers.
• Propane Power Systems (PPS): Compatible with Vanguard and Briggs & Stratton engines, including those used indoors.
• Onyx Systems: Designs kits specifically for flooring tools like polishers and grinders.
Dealers usually handle installation, certification, and compliance – making adoption typically very seamless for business owners.
What to Consider Before Switching
Thinking about converting your fleet? Keep these key factors in mind:
• Engine Compatibility
Not all engines can handle propane. Check carefully – manufacturers usually support this verification.
• Professional Installation
Proper installation is crucial. Mistakes can lead to safety issues, void warranties, or reduce performance.
• Regulatory Compliance
Ensure that your chosen kit meets all EPA and CARB standards. Certified kits comply with current emissions and safety regulations.
• Return on Investment
Although upfront costs do exist, most users see a payback within one or two seasons thanks to fuel savings, reduced maintenance, and improved uptime.
Why Propane?
Propane offers a range of distinct advantages:
• Cleaner Combustion: Burns more efficiently, reducing carbon buildup and extending engine life.
• Fuel Savings: Generally cheaper and more price-stable than gasoline, offering predictable budgeting.
• Worksite Safety: Lower emissions make propane safer for indoor and enclosed areas – such as schools, hospitals, and warehouses.
• Environmental Benefits: Fewer harmful emissions, helping businesses meet eco-friendly goals.
These benefits make conversion kits a strategic investment – boosting performance, cutting costs, and reducing emissions.
Final Thoughts
Propane conversion kits are a powerful upgrade tool – turning existing gasoline equipment into cleaner, more efficient propane-powered machines. Trusted providers like Alliance Small Engines, PPS, and Onyx Systems make it easier than ever to convert, comply with regulations, and start saving. For contractors in the landscaping and flooring industries, these kits offer a real competitive edge: financial, operational, and environmental.
Information for this article was provided by the Propane Education & Research Council (PERC).