CHT Type K Thermocouple, Bayonet (3/8-24)

  • Backed by an industry leading 5-year warranty
  • Small element diameter provides for near instantaneous instrument response
  • Provides sufficient electrical power for Alcor unamplified instruments
  • Intended for use with Type K CHT instruments and leads
  • Not stand alone FAA approved (contact Alcor for FAA approved installations)
  • Alcor probes are designed, manufactured, and supported in the U.S.A.
  • If using bulk wire for installation, hardware kit P/N 38091 will need to be purchased separately. P/N38091 includes 1ea 632 captive nut, #6 screw, #8 terminal, #6 terminal, #6 lock washer and 4ea #4 terminal.

CHT/EGT Types J & K Dual Meter, 2-1/4″

  • The best value in the industry backed by a generous 3-year warranty
  • Save on fuel costs through precision leaning—running as little as 100° too rich can cost $1,000 in wasted fuel over 100 hours, see the proof here
  • Quick visual reference to peak EGT
  • Set reference to peak EGT where you want with easy in-flight calibration—special screwdriver included
  • Increase the life of your engine and enhance safety through proper monitoring
  • CHT calibrated to true temperature—500 degrees Fahrenheit at 8 Ω (Yellow and Black)
  • Designed to provide temperature compensation for accurate readings year round, on the ground and at altitude
  • No risk of malfunction during electrical failure—requires no external source of power for operation
  • Attention homebuilders—easy installation with no electrical system required
  • All necessary mounting hardware included
  • Alcor instruments are designed, manufactured, and supported in the U.S.A.

A complete system would include:
46126 EGT/CHT Meter
86202 CHT Thermocouple (gasket style) (or 86251 w/ 28202 adapter)
86255 EGT Thermocouple (clamp style)
42525 EGT Lead, 90″
42535 CHT Lead, 90″

For more information, see EGT Myths Debunked by aviation writer Mike Busch.

Your certified mechanic may choose to file a simple Field Approval Form 337 for major instrument changes. See the applicable FAA definition of major alterations in Part 43 Appendix A.

Alcor recommends in-flight EGT calibration for every installation of p/n 46126. See the manual for easy
to follow instructions.

CHT Type K Thermocouple, Bayonet Reverse Stagger

  • Backed by an industry leading 5-year warranty
  • Small element diameter provides for near instantaneous instrument response
  • Lead wires are configured in reverse stagger(long red and short yellow)
  • Intended for use with Type K CHT instruments and leads, typically found in digital systems.
  • Most engine cylinders require use of Bayonet adaptor, part number 28202 for a secure fit
  • PMA and FAA approved for all reciprocating powered aircraft
  • Alcor probes are designed, manufactured, and supported in the U.S.A.

CHT Type J Thermocouple, Bayonet

  • Backed by an industry leading 5-year warranty
  • Small element diameter provides for near instantaneous instrument response
  • Provides sufficient electrical power for Alcor unamplified instruments
  • Intended for use with Type J CHT instruments and leads
  • Most engine cylinders require use of Bayonet adaptor, part number 28202, for a secure fit
  • PMA and FAA approved for all reciprocating powered aircraft
  • Alcor probes are designed, manufactured, and supported in the U.S.A.

Don’t see your part number? No problem!

CHT Type J Gasket Style Thermocouple, 18mm

  • Backed by an industry leading 5-year warranty
  • Small element diameter provides for near instantaneous instrument response
  • Provides sufficient electrical power for Alcor unamplified instruments
  • Intended for use with Type J CHT instruments and leads
  • Gasket style design fits standard 18mm spark plugs
  • PMA and FAA approved for all reciprocating powered aircraft
  • Alcor probes are designed, manufactured, and supported in the U.S.A.

Don’t see your part number? No problem!

With Alcor’s blanket STC, p/n 86202 can replace many existing Gasket style Type J CHT probes, including old or obsolete part numbers.