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UL Power North America LLC is the North American distributor for UL Power light aircraft engines.  These truly modern engines feature FADEC (full authority digital engine control) with multi-point electronic ignition, excellent power-to-weight ratio, and high fuel efficiency in a conventional configuration: Air-cooled, direct drive, horizontally opposed four-cylinder.

Zenith Aircraft Co. has now developed complete Firewall Forward (FWF) packages for the UL Power engine series.

Click here for the complete list of included items.                            Price of UL260i FWF:   $4,490.00 US*
(with UL-350)                                                                                    Price of UL350iS FWF: $4,950.00 US*


Note that the Zodiac CH 601XL/650 and the STOL CH 750 use the same firewalls. So the FWF kits are the same except for the engine mount.   For UL-Power engine prices from Zenair or Zenith Aircraft Co., click here...

The Rotax 912 engine series can be installed in the CH 750 as well as CH 601/650 models. Aside from the Engine Mount and Propeller, the FWF package is the same for both aircraft. Contact Zenith Aircraft for the CH 701 FWF.


 The complete FWF package presently offered by Zenair for the Rotax 912ULS includes:

• Warpdrive propeller
• Stainless steel muffler
• engine cowling
• oil and water radiators with mounting brackets
• engine mount with dynafocal brackets and rubber mounts
• and much, much more...   (click for full list)                                                 Price: $6,500.00 USD*

For owners of a Zenair Rotax 912S FWF package, plans, installation manuals & photo-guides are available HERE.

For complete Jabiru FWF packages and engines for your Zenair, order directly from Jabiru:    http://www.usjabiru.com/Zenith_CH750.html
              or:    http://www.jabirupacific.com/fwf.htm

Lycoming 0-360-A4M 


Elements included in this FWF package include:

• Exhaust System with carb. and cabin heat shroud $1,318.00
• Propeller: Metal fixed-pitch Sensenich (76"), with spinner & bolts $2,990.00
• Engine Cowl Kit (fiberglass, two-part) $759.00 (wider cowling available for the IO-360 series engines)
• Engine baffle kit (air cooling baffles not cut) $351.00
• Carburetor Air Box Assembly (with carb heat) $425.00
• Oil Cooler Radiator Kit $452.00
• Fuel Lines and back-up electric fuel pump $443.00
• Lycoming O-360 engine mount installation package $1,054.00
• Control Cables Kit (throttle, carb, mixture...) $190.00
• and more...

                                                                                                   Complete FWF kit price. $7,982.00*

Note that the STOL CH 801 & Zodiac CH 640 both use the same firewall; they use the same FWF packages.

This FWF package is very similar to the Lycoming 0-360 FWF package. It is customized for the Aero Sport Power Engine IO-375 Engine. Slight variations include a larger cowling, larger baffles, different air intake, etc. Almost the same items supplied for the Lycoming FWF package.  

Click here for the complete list of included items.                          Complete FWF kit price: $7,990.00*

Note that the STOL CH 801 & Zodiac CH 640 both use the same firewall; they use the same FWF packages. See the download area (restricted to builders) for IO-375 assembly photo-guides...

For builders inclined to rebuild their own engine, one of the best values and most reliable options for the Zodiac CH 650 and STOL CH 750 is the Corvair engine.  Many Zenith builders are very happy with their engines, modified as per William Wynne's instructions and top-quality components. The following links have details and pictures of the engines (also available ready-to-install) by William Wynne.

                          CH 601 XL/CH 650B                      STOL CH 750

*Prices in U.S. funds. All prices, equipment and availability subject to change without prior notice.
  Prices do not include crating or shipping charges (FOB Factory).

A note about "deletions" from FWF Packages:
Please note that the above FWF packages have been conceived, produced, sold, and crated to optimize efficiency as well as the value of each package. Individual component deletions result in reduced efficiency and increased costs; credits allowed for deleted components will therefore be adjusted to reflect this. Bottom line: Customers will receive less than retail credit for deleted components (including propeller). Thank you for your understanding.