INSTRUMENT LT (P/N b4855c) - As Removed

Part b4855c is an instrument light designed for cockpit panel and gauge illumination. This compact lighting component provides readable instrument display without objectionable reflections, meeting FAA requirements under 14 CFR 25.1381. The light integrates with aircraft electrical systems to illuminate flight instruments and avionics during night operations and low-visibility conditions.

Installation follows aircraft maintenance manual specifications and wiring diagrams. Verify compatibility with your aircraft's Illustrated Parts Catalog before installation to ensure proper fit and electrical integration with existing panel lighting circuits.

What is the INSTRUMENT LT (P/N b4855c)?

Part b4855c is an instrument light designed for cockpit panel and gauge illumination. This compact lighting component provides readable instrument display without objectionable reflections, meeting FAA requirements under 14 CFR 25.

Is the b4855c calibrated and ready to install?

Calibration status depends on the condition. Overhauled instruments come fully calibrated with an 8130-3 tag. The INSTRUMENT LT is available in: As Removed. Contact us to confirm calibration status for your selected condition.

Can the b4855c be used as a direct replacement in my aircraft?

The INSTRUMENT LT is designed as a form-fit-function replacement. Verify the part number against your aircraft's Illustrated Parts Catalog (IPC) and instrument panel layout to confirm compatibility before ordering.

Do you offer instrument exchange programs for the b4855c?

Yes, we offer core exchange programs on select instruments. Send your unserviceable unit and receive a discount on the replacement. Call (904) 998-9101 or submit an RFQ to check exchange availability for the b4855c.