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Part # 86268-2

CHT GASKET, Type K, 14mm


$168.90
Retail Price: $211.12
Expected ship date is 12-29-2026.

Product Details

Specifications

Approval
FAA PMA STC
Condition
New
Manufacturer
Alcor
Dimensions
L: 8 x W: 6 x H: 0.5 in
Weight
N/A
Unit of Measure
Each
McFarlane Part Number
86268-2

Application

Universal Part

Universal part. Sizing customizable to fit your needs.

Product Description

CHT Thermocouple Probes

Includes fire sleeve and ring terminal hardware. Two different mount styles are available:

Bayonet Mount
These twist and lock into a screw-in adapter. The probe is spring loaded to ensure contact with metal instead of air. Choose bayonet style if the engine model is equipped with threaded thermowell receptor and/or bayonet adapter in the cylinders.

Gasket Mount
These do not require a screw-in adapter. The 18mm gasket fits on many common spark plugs. Some engine designs, such as radial engines, the O-235 and O-200, may prevent the use of bayonet style or may not allow for the use of a bayonet adapter. Choose gasket style if the engine model is NOT equipped with threaded thermowell receptor and/or bayonet adapter in the cylinders. 

P/N Description Thermocouple Type Mount Grounded or Ungrounded Stagger Resistance

86251*

CHT Probe

J - Black and Yellow

Bayonet

Grounded

Normal

0.24 +/- .05 Ohms

86202

CHT Probe

J - Black and Yellow

Gasket, 18mm

Grounded

Normal

0.13 + .16 Ohms / - .05 Ohms

86252

CHT Probe

K - Red and Yellow

Bayonet

Grounded

Normal

0.66 +/- .10 Ohms

AA86146

CHT Probe

Bayonet

Grounded

0.57 +/-

*A new installation of P/N 86251 requires P/N 28202 as well.
** Does not require bayonet adapter. Screws directly into the thermowell.

WARNING: Cancer and/or Reproductive Harm - California Proposition 65 Resources

Eligible Aircraft
Make Model Start S/N End S/N Eligibility Chart
Many ManyManyS/N 0 – ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZEligibility Chart
Cross Reference

Reference only: Please verify this product is appropriate for your use case before adding to your cart.

  • 86252
Documents

Maintenance and Product Guides

Installation, Use, and Maintenance Instructions

Related Categories