FAA-PMA N300 Cessna, Mooney & Piper Replacement & Upgrade Alternators

12 or 24 VOLT 70 or 100 AMP Retrofit Alternators

National 70-Amp N300 Installation In Cessna C-210


For PREMIUM PERFORMANCE alternators with unmatched reliability, the National N300 70, 85 or 100 amp direct retrofit alternators offer one of the most desired electrical system upgrades available for Cessna, Mooney, Piper and other aircraft operators.  Read about Reid Priors trip around the world and his National Airparts testimonial at Priortrip.com  To:” Al Petrone and his company in Deland, FL, National Air Parts, which built, certified, and sold me the mil-spec 100 amp alternator that gave me adequate power to run all my accessories and with the reliability necessary for long overwater operation.”
The National N300 alternators are built to high standards of fit, finish and performance, using premium quality components specified for aircraft use applications.

Critical electrical hardware is stainless steel, and cases are of a special corrosion resistant finish. During manufacture, emphasis is given to precision-balance the rotor for ultra-smooth operation at high speeds. Extensive radio suppression measures are incorporated into the basic alternator design. These design features tend to “cure” many of the common problems associated with typical aircraft electrical systems, long notorious for “noise” related issues.

National 70-Amp N300 Installation on PA-38-112 TomahawkOperators benefit from increased output at normal engine operating speeds, much lower radio noise and a marked increase in overall reliability. The N300 easily mounts with existing OEM hardware. Its enhanced design offers smoother operation and lower vibration with cooler operation and greatly extended service life.

All Heavy Duty National alternators are approved as direct replacements for lower-powered OEM units, with no wiring or voltage regulator change required. The rugged 70 or 100 amp N300 has approximately the same weight as the light-duty OEM alternator and easily mounts with all of the OEM hardware

For Cessna operators demanding the ultimate in power handling capacity, National produces an ultra-heavy duty 12 volt 100 amp FAA-PMA small case version of the National N300. This replacement for 60 amp OEM Cessna/Ford alternators allows Cessna owners to replace their anemic, tired and much-overhauled alternators with the most powerful alternator available for their aircraft..
View typical Ford 28-volt retrofit alternator data and specs

Note for operators of early model belt-driven GENERATOR EQUIPPED Cessna aircraft:

National 100-Amp N300 Installation on PA-28R-200 ArrowMany Piper operators have also upgraded their aircraft to the National N300 70 amp alternators., benefiting from increased output at normal . Because of operator demand for additional power, National offers its ultra-heavy duty 14 volt 100 amp small case alternators. These replacements for 60 and 70 amp OEM Prestolite alternators allow Piper operators to replace their trouble-prone Prestolite alternators with BRAND NEW heavy duty alternators able to satisfy the most demanding electrical requirements — on virtually any Piper model.

While all of these new National alternators are approved as direct replacements for lower-powered OEM units, with no wiring or voltage regulator change required, most operators obviously elect to perform a simple wiring upgrade on the aircraft system, allowing full benefit of the N300’s much improved power generating capacity. Rated at 12 volts, 100 amps output, the increased current capability of the National alternator translates into increased performance margins, cooler operation and greatly extended service life, compared to the OEM 60-70 amp alternators. The enhanced design of the National N300 also provides much smoother operation, lower vibration and increased clearances in the engine compartment. At a weight of approximately 11 lb., the N300 also boasts a weight savings over most of the OEM units.

The National C312R replacement for Chrysler alternators allows vast numbers of Piper Cherokee operators to replace their old-technology Chrysler alternators with modern, BRAND NEW heavy duty alternators rated at either 70 or 100 amps continuous output. The increased current capability of the National alternator translates into a substantial performance margin, cooler operation and greatly extended service life compared to the OEM 40-60 amp alternators. As with the Prestolite replacement alternators, most operators obviously elect to perform a simple wiring upgrade of the aircraft system in order to take full advantage of the alternator’s greater capability.

The National C312R Chrysler retrofit alternators are built to critical standards of fit, finish and performance, using premium quality components specified for aircraft use applications. Critical electrical hardware is stainless steel, and cases are of a special corrosion resistant finish. During manufacture, emphasis is given to precision-balance the rotor for ultra-smooth operation at high speeds, and extensive radio suppression measures are incorporated into the basic alternator design. This results in an extremely quiet, long-life alternator capable of the performance demanded by today’s high electrical use requirements.

Warranty for these alternators, as with all new National AirParts alternators, remains at the industry-setting standard of 2 years or 600 operating hours. Contact National AirParts, Inc., at 386-734-3365 or toll free at 800-713-1111 for more information. Factory Rebuilt alternators with a serviceable National AirParts core are also available.