This STC is for a remote oil cooler and/or additional oil cooler installation. The STC requires that you have a forward mounted exhaust installed (i.e. Sutton, Rubbert Aircraft Services, or Dakota Cub) because the oil cooler will be mounted to the firewall. This installation is lighter and more efficient than the original Piper and allows you to use a nose-bowl without the oil scoop (you can use either style nose-bowl). With the oil cooler mounted on the firewall it is not subject to as much vibration from the engine as it would be mounted on the baffling.
Additional Oil Cooler Option
If your aircraft already had a engine baffling mounted oil cooler and you operate in a hot climate (also works well for floatplanes) you can mount an additional in-line oil cooler that is mounted on the firewall.
This STC is paperwork only. You will get drawings to make the required parts to mount the oil cooler. A Niagra or AERO-Classic oil cooler is used (9 or 10 element).
Applicable models are all Piper PA-22, PA-20, PA-19, PA-18, PA-16, PA-14 and PA-12 aircraft.