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Part # AA86146

CHT PROBE BAYONET THERMISTOR


$557.28 Retail Price: $696.59
In Stock

Product Details

Specifications

Approval
FAA PMA
Condition
New
Manufacturer
Tempest
Dimensions
N/A
Weight
0.09 lbs
Unit of Measure
Each
McFarlane Part Number
AA86146

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

Reverse

0.66 +/- .10 Ohms

86253

CHT Probe

K - Red and Yellow

Bayonet, Screw-in **

Grounded

Reverse

0.65 +/- .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.

For more information on probes, go to Thermocouple Probes.

ALCOR Instruments and Probes

Don't waste your money on cheap instruments and probes. There is a big difference! Increase engine life and enhance safety through proper monitoring

  • Faster responding probes than low dollar alternatives
  • Temperature compensated gauges for accuracy all year round at any altitude
  • Single gauges monitor one cylinder, dual gauges for twin engine aircraft monitor one cylinder per engine. Add a selector switch to make an economical full engine analyzer. Lighted gauges and custom dials also available!

Alcor: A name you can trust

  • Over 50 years' experience - Designed, manufactured and supported in the USA
  • Generous warranty: 3 years for gauges, 5 years for grounded probes, 1 year for ungrounded probes
  • FAA-PMA/STC approved for all aircraft with reciprocating engines

Simple installation

  • No power required from the aircraft (lighted gauges require power)
  • Works even with an electrical failure
  • Great for homebuilt or antique aircraft with no electrical system
  • Gauges include all mounting hardware
  • Standard 2 1/4" or 3 1/8" gauge sizes

Save with complete kits!

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

Eligible Aircraft
Make Model Start S/N End S/N Eligibility Chart
Cessna 310P310PS/N 310P0001 – 310P0240310P0240Eligibility Chart 6630
Cessna 310Q310QS/N 310Q0001 – 310Q1160310Q1160Eligibility Chart 6630
Cessna 401401S/N 401-0001 – 401-0322401-0322Eligibility Chart 6630
Cessna 401A401AS/N 401A0001 – 401A0132401A0132Eligibility Chart 6630
Cessna 401B401BS/N 401B0001 – 401B0221401B0221Eligibility Chart 6630
Cessna 402402S/N 402-0001 – 402-0322402-0322Eligibility Chart 6630
Cessna 402A402AS/N 402A0001 – 402A0129402A0129Eligibility Chart 6630
Cessna 402B402BS/N 402B0001 – 402B1384402B1384Eligibility Chart 6630
Cessna 404404S/N 404-0001 – 404-0859404-0859Eligibility Chart 6630
Piper PA-31PA-31S/N 31-2 – 31-831201931-8312019Eligibility Chart 6630
Piper PA-31-300PA-31-300S/N 31-2 – 31-831201931-8312019Eligibility Chart 6630
Piper PA-31-325PA-31-325S/N 31-7400990 – 31-831201931-8312019Eligibility Chart 6630
Cross Reference

Reference only: Please verify the product is eligible for your aircraft before adding to your cart.

  • 102-00007
  • 8013601-6
  • 86146
  • 453-751
  • 8013601-4
  • AN5546-1
  • MS24482-1
Documents

Maintenance and Product Guides

Installation, Use, and Maintenance Instructions

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