Propane Engine Conversion

aztec engine conversion kits

PurePower by Aztec offers professionally engineered and EPA certified Liquid Propane Gas conversions for Original Equipment Manufacturers’ indoor and outdoor power equipment engine needs.

PurePower is a brand created by Aztec for OEM LPG applications. The PurePower brand was created to help differentiate the OEM’s brand from Aztec branded equipment.

LPG is an excellent fuel source for powering commercial equipment. It burns exceptionally cleanly without sacrificing power or performance, when properly carbureted with high quality, patented brand-name LPG carburetors and catalytic mufflers.

Each PurePower engine is converted with high-quality brand name components, based on a customized carburetion formula approved and certified by the EPA. Each engine is individually tested. Aztec retains emission test reports by engine serial number.

PurePower by Aztec Engine Base Brand Choices

All PurePower engines are converted with a customized carburation formula, tested individually and certified for indoor use by the EPA.

PREMIUM ENGINE BASE BRANDS

Honda

A manufacturing powerhouse, Honda makes a wide variety of machines from trimmers, to motorcycles, to heavy construction vehicles, to solar cells and airplanes. Honda’s worldwide production surpassed 120 million units in more than 150 countries in 2014. Includes a 2-year engine warranty

Kawasaki

Kawasaki Heavy Industries Group began more than 100 years ago with the General Purpose Petro Engine division starting in 1957. Kawasaki is proud of its reputation of pushing the boundaries of 4-stroke engine technology. Kawasaki has a powerplant partnership with John Deere and a network of over 7000 dealers. Includes a 2-year engine warranty.

Kohler

Founded in Sheboygan, WI in 1873, Kohler has grown into a global company specializing in premium engines and plumbing products. Includes a 3-year engine warranty.

SUBARU

As one of the largest engine manufacturers in the world, Subaru produces more than 1.2 million engines annually for every type of market. Subaru offers a parts and service network with over 5000+ locations. Includes a 5-year engine warranty.

ECONOMY ENGINE BASE BRANDS PUREPOWER ECONOPRO:

The PurePower EconoPro brand exists for OEMs that need a solid quality, inexpensive option for a low-power or particularly dirty application.

The EconoPro engine line is priced to be a swappable option in environments that are unwarrantable for branded engines or that require so little power that an expensive premium engine is a waste. Includes a 1-year engine warranty.

Some Facts About Us:

  • PurePower is committed to customer safety with all conversions utilizing a catalytic muffler whether or not it is required by law.
  •  All machine manufacturing, engine conversions, R&D projects and administrative support occurs in the USA, by Aztec employees.
  • Aztec offers its OEM partners reliability and long-term stability, with all current ownership, management and key research and development personnel in place for over 20 years.
  • PurePower by Aztec believes strongly in responding to our customer’s needs.
  • Don’t see the engine that you want listed? Custom carburetion projects are welcome!

Kawasaki FS Series

PurePower by Aztec propane engine conversion
  • 3 Year warranty
  • Overhead 90deg V-Twin
  • Pressurized Lubrication System
  • Electronic Spark Ignition
  • Automatic Compression Release
  • Cast Iron Cylinder Liners
  • Hardened Valve Heads
  • Bendix Type Starter

ModelFS481V
TypeOverhead V-Valve
Displacement603
Max Output18.5/3600
Drive ShaftVerticle
Cylinders2
Bore x Stroke73x72
Lubrication TypePressure System
Oil Capacity (oz/cc)57.6/1700
Dimensions (LxWxH) mm483x429/362
Dry Weight (lb/kg)81/37
.

Subaru EX Series

  • 5 Year Warranty
  • Chain Driven Overhead Cam
  • Dual Ball-Bearing Crankshaft Support
  • Hemispherical Combustion Chamber
  • Case-Hardened Steel Timing Chain

ModelEX27EX40
TypeChain-Driven OHCChain-Driven OHC
Displacement CC265404
Max Output (HP/RPM)9.0/400014/3600
Drive Shaft OrientationHorizontalHorizontal
Cylinders11
Bore x Stroke75x6089x65
Lubrication TypeSplash with Chain CarrySplash with Chain Carry
Oil Capacity (oz/cc)34/100040.5/1200
Dimensions (LxWxH) mm351x420x410389x450x443
Dry Weight (lb/kg)46/2173/33

Kohler Command Pro Series

  • 3 Year Warranty
  • Cast Iron Cylinder Liners
  • Aluminum Block
  • Heavy Duty Bearings
  • Hardened Crank Shaft Journals
  • Large Dual Oil Drains
  • Nylon Cam Gear
  • Hydraulic Valve Lifters
  • Large Top-Mounted In-Line Fuel Filter

ModelCH1000
TypeOverhead Valve
Displacement CC999
Max Output (HP/RPM)37/3600
Drive Shaft OrientationHorizontal
Cylinders2
Bore x Stroke90x78.5
Lubrication TypePressure System
Oil Capacity (oz/cc)64/2000
Dimensions (LxWxH) mm389x483x699
Dry Weight (lb/kg)81/37

Subaru EH Series

PurePower by Aztec engine conversion
PurePower by Aztec propane engine conversion
  • 5 Year Warranty
  • Cast Iron Cylinder Liners
  • High Carbon Steel Crankshaft
  • Large Main Bearing Support on PTO Side of Crankshaft
  • Low Oil Pressure Sensor
  • HotSpark Ignition System
  • Large Capacity Air Cleaner with Dual Elements

ModelEH65VEH99V
TypeOverhead ValveOverhead Valve
Displacement CC653999
Max Output (HP/RPM)22/360040/3600
Drive Shaft OrientationVerticleVerticle
Cylinders22
Bore x Stroke84x6590x78.58
Lubrication TypePressure SystemPressure System
Oil Capacity (oz/cc)68/200070/2070
Dimensions (LxWxH) mm475x469x353488x465x485
Dry Weight (lb/kg)93/42119/54

Honda GX 390 Series

PurePower by Aztec
PurePower by Aztec
  • 3 Year Warranty
  • Cast Iron Cylinders
  • Heavy Duty Ball Bearing Supported Crankshaft
  • Precision Camshaft
  • Dual Element Air Filter
  • Dual Oil Drains
  • Easy-Access Spark Plug

ModelGXV390GXV390
TypeOverhead ValveOverhead Valve
Displacement CC389389
Max Output (HP/RPM)13/360013/3600
Drive Shaft OrientationHorizontalVertical
Cylinders11
Bore x Stroke90x5188x63.5
Lubrication TypeForced SplashForced Splash
Oil Capacity (oz/cc)85/38.590/41

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