We provide an all-encompassing kit during the upgrade. We like to call it a NEW firewall forward upgrade. Our goal is to provide all the hardware needed to complete the installation with ease.
Models B thru P (Standard Items)
New Lycoming O-360 Engine
New Sensenich propeller
All new Baffles with baffle seal attached
Engine isolator mounts(four) with mounting bolts
FWD and AFT Spinner Bulkheads
Cowl oil door relocation kit
New Induction Airbox
Carburetor adapter plate
Gaskets and mounting hardware
Fuel & oil lines
Induction air filter element
Oil cooler mounts, Flanges/plates
Throttle mixture support bracket
Installation Hardware and Clamp Kit
STC Authorization, Drawings, and Installation Instructions
Models B thru H (Additional Items)
It is simple. We believe that 180HP and a fixed pitch propeller provides the best combination of power and reduced complexity for a Cessna 172. The proven and reliable factory new Lycoming O-360-A4M engine comes complete from Air Plains with roller tappets, Slick Magneto, EIS (Electronic Ignition System), wiring harness, spark plugs, carburetor and ring gear. The engine is paired with a light weight Sky-Tec starter and Plane-Power alternator.
91AKI / 100L
Our STC upgrade has the option to incorporate the latest technology of the EIS (Electronic Ignition System). Delivered from Lycoming with lighter weight and improved safety that has been field and flight tested. The Lycoming EIS has no moving parts and nearly eliminates scheduled maintenance requirements.
76 - 74.5
All propellers have been matched to provide the best combination of airframe and powerplant. Propeller blades with different pitch rage are available if your goal is to achieve an optimal cruise speed or climb rate. Our fixed pitch propeller provides a light weight installation and low maintenance solution.
Expand your envelope. One of the best benefits of our upgrade is the ability to carry additional weight on your flights. It adds flexibility on your range planning and an additional safety margin. This is why we developed STC SA2196CE. Your Cessna 172 will be a true 4 seat airplane with 1000+ LBS useful load.
Models D thru L
Models M thru P
Need a bigger envelope?
With Air Plains there are a few options to get 180 horsepower into your Skyhawk. We do not sell the "STC Paperwork" only because we believe that the kit parts that we offer with the engine upgrade is the "secret sauce" to a complete, safe and successful installation. We have added several more parts over the 40 years with our continual engineering. Our goal is to make the installer's job as easy as possible. Installation instructions and blueprints safeguard the procedures and standards for installation and maintenance of your new engine... no matter where you choose to have it installed. Did you know that in the state of Kansas there is no sales tax on aircraft maintenance or modification?
Install at Air Plains
Purchase Complete Kit
Installed at our Facilities
One flat fee
Use our Know-How
2 to 3 weeks Turn Time
Install at your FBO
Purchase Complete Kit
Installed by your mechanic
Instructions and Drawings
Tech Support provided
Forward and Aft Spinner Bulkhead
We provide new forward and aft spinner bulkheads with the upgrade to match the propeller and spacer. No other modification is necessary.
New Engine Baffle Set
The new baffle assembly was designed to improve cooling of the engine and to keep cylinder temperatures down. Oil Cooler is located in the rear baffle to improve efficiency.
Installations on models B thru H require a new engine mount provided in our kit. On models I thru P we offer the option to do an inspection of the mount and paint. Weld gussets that help prevent future cracks are also installed.
Battery Tray Installation
We have re-designed the battery tray to allow easier removal of the left magneto for inspection and maintenance.
New Induction Airbox
A new induction airbox is provided to accommodate the bigger engine. We have incorporated several improvements to decrease the wear of the components.
We offer several products that will enhance your aircraft and add more pleasure to your flying. During an engine upgrade we are able to install other products and accessories efficiently since we start with a clean slate.
Besides customer satisfaction, one of our main goals is to provide continual airworthiness for your aircraft. We are never done adding more features to the upgrade kit. This is why we fabricate our FAA-PMA parts in-house. We are able to reduce cost significantly to save you more money and provide a product that meets our kit quality standards. We are here to provide future support in your maintenance. Visit our online store to find STC products and FAA-PMA parts.
OEM Vs. Air Plains
Fly at 20 In. Hg. and set a comfortable cruise
Develop more power at altitude and cruise along
Rich of peak operation at 9,500 feet
20 In. Hg.
Upgrade your aircraft with our 180 Horsepower engine and experience a whole new level of performance. With better cruise speeds and rate of climb, you'll be amazed at the difference. .
Fly above the terrain and get there faster
Carry an additional 250 lbs. of payload and pack all your gear
Climb to new heights and find the tailwind
Congratulations! You own the most popular aircraft ever built. We believe that we have created the ultimate upgrade kit that gives your Cessna 172 more versatility and makes it a true 4 seater. Flying in high density altitude days and adding the capability to carry additional payload are just a few benefits that enhances your flying and adds additional safety. Give your legacy airframe the upgrade it needs to set you apart. You will enjoy a new experience.