PRESSURE SWITCH (P/N m4006-4) - New Surplus
P/N: m4006-4
Category: Switches
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 5 Available |
Product Description
The m4006-4 is an oil pressure switch that monitors engine oil pressure and activates a Hobbs hour meter. This normally open SPST unit closes when oil pressure reaches approximately 4 psi, triggering time-logging when the engine starts. It mounts via a 1/8-27 NPT male thread directly into the engine oil gallery port.
When oil pressure rises after engine startup, the switch engages, starting the Hobbs meter to track flight time. Installation requires connecting the switch to the designated oil gallery port per the aircraft maintenance manual and wiring the unit to the Hobbs meter circuit.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the PRESSURE SWITCH (P/N m4006-4)?
The m4006-4 is an oil pressure switch that monitors engine oil pressure and activates a Hobbs hour meter. This normally open SPST unit closes when oil pressure reaches approximately 4 psi, triggering time-logging when the engine starts.
Is the m4006-4 compatible with my aircraft's avionics suite?
Avionics compatibility depends on your aircraft model and existing installation. The PRESSURE SWITCH is available in: New Surplus. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.
Does the m4006-4 come with an 8130-3 airworthiness tag?
Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.
Do you offer bench testing for the m4006-4?
We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.
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