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Instruments, Probes and Leads

123 products

EGT KIT, 90" Lead 2-1/4"

$534.78
Retail Price: $668.47
Expected ship date is 05-27-2026.

EGT KIT, 90" Leads 4 Cyl 2-1/4

$1,363.78
Retail Price: $1,704.72
Expected ship date is 07-07-2026.

EGT KIT, 90" Leads 6 Cyl 2-1/4

$1,733.28
Retail Price: $2,166.60
Expected ship date is 07-07-2026.

EGT KIT, 144" Lead 2-1/4"

$553.79
Retail Price: $692.23
Expected ship date is 05-27-2026.

CHT KIT, 90" Lead 2-1/4"

$577.67
Retail Price: $722.08
Expected ship date is 05-21-2026.

CHT KIT, 90" Leads 4 Cyl 2-1/4

$1,535.34
Retail Price: $1,919.17
Expected ship date is 07-07-2026.

CHT KIT, 144" Lead 2-1/4"

$589.95
Retail Price: $737.44
Expected ship date is 05-21-2026.

CHT/EGT KIT, 90" Leads 2-1/4"

$1,284.32
Retail Price: $1,605.40
Expected ship date is 05-27-2026.

CHT/EGT KIT, 90" Leads 4 Cyl 2

$2,856.82
Retail Price: $3,571.02
Expected ship date is 05-27-2026.

CHT/EGT KIT, 144" Leads 2-1/4"

$1,315.62
Retail Price: $1,644.52

CHT/EGT KIT, 144" Leads 6 Cyl

$3,869.39
Retail Price: $4,836.74

CHT/EGT KIT, 90" Leads 3-1/8"

$1,104.67
Retail Price: $1,380.83
Expected ship date is 05-27-2026.

EGT Kit, Dual 240, Leads 3-1/

$1,179.01
Retail Price: $1,473.77
Expected ship date is 05-21-2026.

CONNECTOR, Omega Male, Type K

$8.46
Retail Price: $10.57

CONNECTOR, Omega Male, Type J

$10.35
Retail Price: $12.94

CONNECTOR, Omega Female, Type K

$10.35
Retail Price: $12.94

CONNECTOR, Omega Female, Type J

$10.35
Retail Price: $12.94

WELD BOSS (for B probe)

$37.03
Retail Price: $46.29

GASKET THERMOCOUPLE ADAPTER (1004-72)

$93.95
Retail Price: $117.44

CHT ADAPTER (for Bayonet Probe

$37.59
Retail Price: $46.99

Don't waste your money on cheap instruments and probes. There is a big difference!

McFarlane is your lowest price and quickest source for Alcor products!
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

Save with complete kits!

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