CHT LEADS 216 8 OHM TYPE J (P/N 42543) - New Surplus

Part 42543 is a Type J thermocouple lead for cylinder head temperature (CHT) measurement in piston-engine aircraft. This 216-inch lead connects the CHT probe mounted on the engine to the cockpit temperature indicator, with approximately 8 ohms circuit resistance. The thermocouple wire transmits engine heat signals as electrical output for real-time temperature monitoring.

Installation requires routing per FAA AC 43.13-1B guidance and verification against your aircraft's Illustrated Parts Catalog to ensure probe and gauge compatibility.

What is the CHT LEADS 216 8 OHM TYPE J (P/N 42543)?

Part 42543 is a Type J thermocouple lead for cylinder head temperature (CHT) measurement in piston-engine aircraft. This 216-inch lead connects the CHT probe mounted on the engine to the cockpit temperature indicator, with approximately 8 ohms circuit resistance.

Is the 42543 calibrated and ready to install?

Calibration status depends on the condition. Overhauled instruments come fully calibrated with an 8130-3 tag. The CHT LEADS 216 8 OHM TYPE J is available in: New Surplus. Contact us to confirm calibration status for your selected condition.

Can the 42543 be used as a direct replacement in my aircraft?

The CHT LEADS 216 8 OHM TYPE J 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 42543?

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 42543.