McCauley A-1633-40, 5/32 ID X 1/16 Cross Section Lift Rod O-ring - Tempest PMA
Tempest AGA-1633-40-PMA
The Tempest AGA-1633-40 (McCauley OEM A-1633-40) is an FAA-PMA overhaul 5/32 id x 1/16 cross section lift rod o-ring for McCauley applications.
- Helps prevent oil leakage along the lift rod path where motion and vibration can challenge seal life.
- Supports consistent governor response by maintaining oil pressure integrity in a moving control interface.
- Common replacement during overhaul and reseal work, especially if the existing seal shows hardening, cuts, or compression set.
This O-ring is intended for aviation McCauley governor maintenance where correct part number cross references streamline overhaul builds.
Installation notes
Always refer to the applicable aircraft and governor maintenance manual for complete installation procedures.
- Inspect the lift rod surface for scoring or corrosion that could cause premature seal wear.
- Use approved lubricant and avoid rolling or twisting the O-ring during assembly.
Applications and fitment
Used on McCauley governors where OEM A-1633-40 is specified. Confirm compatibility by matching the OEM part number and reviewing governor model and serial number applicability in approved maintenance data.
Tempest AGA-1633-40 is the direct replacement for OEM A-1633-40. Match the OEM part number and confirm applicability by governor model and serial number in the approved maintenance data.
Pilot John International offers Tempest PMA propeller governor parts for propeller overhaul shops, FBOs, and aviation technicians to support aircraft maintenance and ground support.
| General Information | |
|---|---|
| Part # | AGA-1633-40 |
| Manufacturer | Tempest |
| Shipping Information | |
|---|---|
| Product Weight | 0.01 lbs. |
| Product Dimensions | 0.2 x 0.1 x 0.1 in. |
| Schedule B | 8807300010 |
| ECCN | 9A991.d |
| Specifications | |
|---|---|
| Approval | FAA-PMA replacement part |
| OEM P/N | A-1633-40 |
| Size | 5/32 inch ID x 1/16 inch cross section |
| System | McCauley propeller governor, lift rod sealing |
| Tempest P/N | AGA-1633-40 |
| Type | Lift rod O-ring |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* | |
|---|---|
| Hawker Beechcraft | 95-55 - Baron , 95-A55 - Baron , 95-B55 - Baron , 95-C55 - Baron , D55 - Baron |
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QUESTIONS & ANSWERS
Tempest AGA-1633-40 is a direct FAA-PMA replacement for McCauley P/N A-1633-40. Always verify compatibility with your specific propeller governor model and applicable maintenance documentation before placing an order.
The Tempest AGA-1633-40 Lift Rod O-Ring is designed for use in aircraft equipped with McCauley model DCFUS290D9 propeller governors. Matching replacement parts to the correct governor model is essential to ensure proper fit, function, and reliable operation.
The Tempest AGA-1633-40 Lift Rod O-Ring seals the lift rod passage, preventing oil leakage that could impair governor responsiveness and hydraulic pressure integrity. Maintaining a reliable seal around moving lift rod components helps ensure consistent oil flow and accurate propeller speed control throughout governor operation.
PJi offers the Tempest AGA-1633-40 as an FAA-PMA-approved replacement for the McCauley A-1633-40 lift rod O-ring. View our full selection of Tempest propeller governor parts to find the correct component for your application.
For a deeper look at how propeller governors work, why proper maintenance matters, and how to identify compatible replacement components, refer to our Ultimate Guide to Aircraft Propeller Governor Maintenance.
