DESCRIPTION |
FEATURES |
SPECIFICATIONS |
DOCUMENTS |
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DESCRIPTION
The **Plane-Power ALT-8521R** is a rebuilt, Prestolite-style, belt-driven aircraft alternator assembly rated at **24 V and 50 A**.
Hartzell Engine Tech’s Prestolite-style alternators feature a refined and improved Prestolite design. This alternator style has been widely used on legacy OEM aircraft applications.
The base ALT-8521 is an FAA-PMA replacement for Electrosystems alternator **ALT-8421** and is eligible for specified Lycoming O-320, O-360, IO-360, O-540, IO-540 and IO-720 engine applications.
The ALT-8521R is no longer available under this order code. Use **ALT-8521-OH** as the current Hartzell Aviation MRO order code.
*Images are representative and may not show the exact product for sale.*
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## Applications
- Lycoming O-320 Series engines
- Lycoming O-360 Series engines
- Lycoming IO-360 Series engines
- Lycoming O-540 Series engines
- Lycoming IO-540 Series engines
- Lycoming IO-720 Series engines
- Compatible 24 V aircraft electrical systems
- Belt-driven aircraft alternator replacement applications
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## Why CJ Aerospace?
CJ Aerospace supplies a comprehensive range of **Plane-Power aircraft alternators, alternator replacements, voltage regulators and associated electrical components**.
Our team can assist with identifying the appropriate alternator based on the existing part number, aircraft model, engine model, electrical system and installation requirements.
- 🇦🇺 **Australian-owned and operated**
- 📦 **Extensive range of aircraft alternators and associated components**
- 🔧 **Technical assistance with product selection and compatibility**
- ✈️ **Reliable support for aircraft owners, operators and aviation professionals**
> ✉️ [Contact us at sales@cjaerospace.com.au](mailto:sales@cjaerospace.com.au)
> Need help identifying the correct Plane-Power aircraft alternator? Contact our team for assistance.
FEATURES
- Rebuilt aircraft alternator assembly
- Supplied on an exchange basis
- 24 V aircraft electrical-system compatibility
- 50 A rated output
- Belt-driven configuration
- Prestolite-style design
- Refined and improved Prestolite alternator design
- ALT-8521 FAA-PMA replacement configuration
- Suitable for specified Lycoming engine applications
- Superseded for ordering by ALT-8521-OH
SPECIFICATIONS
Package Dimensions
| Length | 27.9 cm |
| Height | 24.1 cm |
| Width | 28.6 cm |
| Weight | 7.67 kg |
Details
| **Specification** | **Details** |
|-------------------|-------------|
| **Part Number** | ALT-8521R |
| **Current Order Code** | ALT-8521-OH |
| **Base Part Number** | ALT-8521 |
| **Product Family** | Prestolite Style |
| **Product Type** | Rebuilt Aircraft Alternator Assembly |
| **Condition** | Rebuilt |
| **Supply Basis** | Exchange – Core Deposit Applies |
| **Availability** | No Longer Available Under This Order Code |
| **Voltage** | 24 V |
| **Current Rating** | 50 A |
| **Drive** | Belt |
| **Compatible Engine Manufacturer** | Lycoming |
| **Lycoming O-320 Engine Applications** | All O-320 models listed under the FAA-PMA eligibility |
| **Lycoming O-360 Engine Applications** | All O-360 models listed under the FAA-PMA eligibility |
| **Lycoming IO-360 Engine Applications** | All IO-360 models listed under the FAA-PMA eligibility |
| **Lycoming O-540 Engine Applications** | All O-540 models listed under the FAA-PMA eligibility |
| **Lycoming IO-540 Engine Applications** | All IO-540 models listed under the FAA-PMA eligibility |
| **Lycoming IO-720 Engine Applications** | All IO-720 models listed under the FAA-PMA eligibility |
| **Replaces Electrosystems P/N** | ALT-8421 |
| **FAA-PMA Supplement for ALT-8521** | 1R2 |
| **Approval Basis** | FAA-PMA eligibility of base ALT-8521 |
| **Brand** | Plane-Power |
| **Manufacturer** | Hartzell Engine Tech LLC |
BROCHURES & DOCUMENTATIONS
List of Brochures
List of Documentation
ALTERNATOR & STARTER APPLICATION DATA FOR REFERENCE ONLY
VIDEO
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