Woodward 210257, Slotted Port Relief Valve Plunger - Tempest PMA
Tempest AG210257L-PMA
The Tempest AG210257L (Woodward OEM 210257) is an FAA-PMA replacement slotted port relief valve plunger for Woodward applications.
- Supports stable governor operation by helping regulate pressure behavior within the relief valve circuit.
- Helps protect internal components by restoring correct plunger function when wear, scoring, or sticking is found during inspection.
- Assists troubleshooting of pressure-related symptoms such as inconsistent governing response when used with proper diagnostic procedures and approved data.
This plunger is typically replaced during aircraft governor overhaul or repair when the relief system components show wear or contamination damage. Pressure relief and flow control concepts exist in many hydraulic systems outside aviation, but this SKU is supported for aircraft propeller governor maintenance and cross referencing.
Installation notes
Refer to your aircraft and governor maintenance manual for complete installation procedures and torque values.
- Clean the relief valve bore and inspect for scoring or contamination that could cause sticking or leakage.
- Follow the governor manual for any required pressure checks, spring pairing, and assembly sequence to validate correct operation.
Applications and fitment
Confirm compatibility by matching OEM 210257 and reviewing the applicable Woodward governor model documentation and approved maintenance data. Correct relief system configuration is essential for consistent governor behavior.
Tempest AG210257L is the direct replacement for OEM 210257. Confirm applicability by governor model and serial number in approved maintenance data before installation.
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 # | AG210257L |
| Manufacturer | Tempest |
| Shipping Information | |
|---|---|
| Product Weight | 0.03 lbs. |
| Product Dimensions | 1 x 0.3 x 0.3 in. |
| Schedule B | 8807300010 |
| ECCN | 9A991.d |
| Specifications | |
|---|---|
| Approval | FAA-PMA (where applicable by installation and approved data) |
| OEM P/N | 210257 |
| Tempest P/N | AG210257L |
| Type | Relief valve plunger, slotted port |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* | |
|---|---|
| Hawker Beechcraft | 58 - Baron , 95-C55 - Baron , 95-C55A - Baron |
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QUESTIONS & ANSWERS
Tempest AG210257L is a direct FAA-PMA replacement for Woodward P/N 210257. Always verify compatibility with your specific propeller governor model and applicable maintenance documentation before placing an order.
The Tempest AG210257L Slotted Port Relief Valve Plunger is designed for use in aircraft equipped with Woodward model A210780 propeller governors. Matching replacement parts to the correct governor model is essential to ensure proper fit, function, and reliable operation.
The Tempest AG210257L Slotted Port Relief Valve Plunger modulates oil flow during pressure-relief events. Controlled flow helps stabilize pressure response.
PJi offers the Tempest AG210257L as an FAA-PMA-approved replacement for the Woodward 210257 slotted port relief valve plunger. 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.
