McCauley A-1633-41, 3/8" ID X 1/16" Cross Section Cylinder Relief Valve O-ring - Tempest PMA
Tempest AGA-1633-41-PMA
The Tempest AGA-1633-41 (McCauley OEM A-1633-41) is an FAA-PMA overhaul 3/8" id x 1/16" cross section cylinder relief valve o-ring for McCauley applications.
- Helps maintain relief valve sealing so the governor can regulate oil pressure without external seepage or internal bypass.
- Supports consistent RPM control by protecting pressure integrity in the relief valve area, a key part of governor stability.
- Commonly replaced during overhaul and any time the relief valve is serviced to reduce repeat leaks after reassembly.
This O-ring supports aviation governor maintenance and overhaul where OEM part number cross references are essential for correct replacement.
Installation notes
Always consult the applicable maintenance manual for the full installation procedure before performing this work.
- Inspect the relief valve bore and edges for scoring or burrs that can cut the O-ring.
- After reassembly, verify pressure regulation function per approved governor and aircraft maintenance procedures.
Applications and fitment
Used on McCauley governors where OEM A-1633-41 is specified. Confirm eligibility by matching the OEM part number and reviewing governor model and serial number applicability in approved maintenance data.
Tempest AGA-1633-41 is the direct replacement for OEM A-1633-41. Match the OEM part number and confirm applicability by governor model and serial number in the approved maintenance data.
Pilot John International supplies Tempest PMA propeller governor components to propeller overhaul shops, FBOs, MROs, and aviation maintenance technicians supporting aircraft maintenance and ground support.
| General Information | |
|---|---|
| Part # | AGA-1633-41 |
| Manufacturer | Tempest |
| Shipping Information | |
|---|---|
| Product Weight | 0.01 lbs. |
| Product Dimensions | 0.5 x 0.5 x 0.1 in. |
| Schedule B | 8807300010 |
| ECCN | 9A991.d |
| Specifications | |
|---|---|
| Approval | FAA-PMA replacement part |
| OEM P/N | A-1633-41 |
| Size | 3/8 inch ID x 1/16 inch cross section |
| System | McCauley propeller governor, relief valve sealing |
| Tempest P/N | AGA-1633-41 |
| Type | Cylinder relief valve O-ring |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* | |
|---|---|
| Cessna | 182 , 210 |
| Hawker Beechcraft | A24 , A24R - Sierra 200 , Beech Bonanza , Musketeer |
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QUESTIONS & ANSWERS
Tempest AGA-1633-41 is a direct FAA-PMA replacement for McCauley P/N A-1633-41. Always verify compatibility with your specific propeller governor model and applicable maintenance documentation before placing an order.
The Tempest AGA-1633-41 Cylinder Relief Valve O-Ring is designed for use in aircraft equipped with McCauley model C290D3 propeller governors. Matching replacement parts to the correct governor model is essential to ensure proper fit, function, and reliable operation.
The Tempest AGA-1633-41 Cylinder Relief Valve O-Ring seals the relief valve bore to prevent internal pressure loss. Effective sealing ensures accurate relief valve response and stable oil pressure regulation.
PJi offers the Tempest AGA-1633-41 as an FAA-PMA-approved replacement for the McCauley A-1633-41 cylinder relief valve 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.
