633962 - Continental Aerospace Technologies - Alternator Assembly

633962 – Continental Aerospace Technologies OEM 28V, 100A Alternator Assembly

Available now on the Airparts.aero Marketplace.

Overview

The 633962 is a high-output, genuine Original Equipment Manufacturer (OEM) alternator assembly from Continental Aerospace Technologies. This is a flight-critical component, engineered to serve as the primary electrical power source for Continental's modern, high-performance 550-series piston engines. With a powerful continuous output rating of 100 amps at 28 volts, this belt-driven alternator is specifically designed to meet the significant electrical demands of today's technically advanced, glass-cockpit aircraft.

As the authentic Continental factory part, the 633962 is the only alternator guaranteed to meet the precise performance, cooling, and reliability specifications required by the engine's type certificate. It is the cornerstone of the electrical system for some of the most popular high-performance single and twin-engine aircraft in general aviation.

Key Features

• Genuine Continental OEM Part: Guarantees the part is manufactured and tested to the exact engineering standards of the engine designer, ensuring full compatibility and airworthiness.

• High-Output: 100-Amp, 28-Volt: A powerful alternator designed to reliably support heavy and continuous electrical loads, such as large-format avionics displays, air conditioning, and Flight Into Known Icing (FIKI) systems.

• Belt-Driven Design: Features a robust V-belt pulley and mounting configuration for installation on Continental's powerful six-cylinder engines.

• Engineered for 550-Series Engines: Specifically designed for the performance characteristics and accessory drive configuration of the Continental IO-550, TSIO-550, and TSIOL-550 engine families.

• Factory New for Maximum Reliability: As a factory-new component, it offers the highest possible level of reliability and service life compared to overhauled or remanufactured units.

Technical Specifications

• Part Number: 633962

• Component Type: Engine-Driven Alternator Assembly

• OEM Manufacturer: Continental Aerospace Technologies

• Voltage Rating: 28 VDC (Nominal)

• Maximum Continuous Amperage: 100 Amps

• Drive Type: Belt-Driven

• Engine Application (Typical): Continental IO-550, TSIO-550, and TSIOL-550 series engines.

• Governing Specification: Continental Aerospace Technologies Engineering Drawings and Manuals.

Aircraft Compatibility

This high-output alternator is the factory-standard component for the powerful Continental engines that drive a premier fleet of modern, high-performance general aviation aircraft.

• Primary Aircraft Platforms:

  • Cirrus SR22, SR22T

  • Beechcraft Bonanza A36, G36

  • Beechcraft Baron G58

  • Cessna TTx (Cessna 400)

Note: Verification of applicability is the absolute responsibility of the installer. The engine's current Illustrated Parts Catalog (IPC) for its specific serial number is the final authority for confirming part number eligibility.

Applications

• Sole Application: To serve as the primary source of 28VDC electrical power for the aircraft's systems and for charging the batteries, especially in aircraft with high electrical demands.

Why Choose 633962?

The electrical demands of a modern, all-glass, FIKI-equipped aircraft can easily exceed the capacity of a standard alternator, particularly during low-RPM operations. The genuine Continental 633962 is the only alternator certified to meet these demands reliably across the engine's full operating range. It is engineered as an integral part of the engine system. Using an unapproved or lower-rated alternator risks a complete electrical system failure under high-load conditions, such as an instrument approach in icing conditions—a scenario where electrical power is absolutely critical to flight safety.

A significant engineering challenge for a high-output alternator like the Continental 633962 is maintaining sufficient power generation at low engine RPMs. An alternator's power output is directly proportional to its rotational speed. During low-RPM operations such as taxiing or final approach, a standard alternator's output can drop below the aircraft's electrical load, leading to a battery discharge. The 633962 is designed as a system matched to the engine. Continental engineers have carefully selected the alternator's drive pulley diameter in relation to the engine's crankshaft pulley to create an optimal drive ratio. This, combined with the alternator's internal winding configuration and the voltage regulator's response characteristics, ensures that it can produce a substantial portion of its rated output even at engine idle. This ability to meet high electrical loads across the entire operational spectrum is a critical design feature for the safety of modern, electrically-dependent aircraft.

Note: This is a flight-critical component. Installation must be performed by a certified A&P mechanic in strict accordance with the Continental engine maintenance manual. The drive belt must be new and correctly tensioned using a tension gauge. Overtightening will lead to premature bearing failure. This alternator requires a compatible, high-capacity external voltage regulator for proper operation. After installation, a full electrical system load analysis and functional check must be performed.

Documentation

All technical data, installation procedures, and service information for this component are proprietary to Continental Aerospace Technologies and are contained within the official Maintenance and Overhaul Manuals for the applicable 550-series engine.