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Probes

Part No.PHOTODescriptionCARTPrice
ALC 86251 Probe CHT, Bayonet Type, Alcor $69.00  
ALC 86245 Probe EGT, Welded Boss Type, Alcor $77.00  
ALC 86255 Probe EGT, 3 Year, Alcor $62.00  
ALC 86240 Probe EGT, Welded Boss Type, Alcor $77.00  
ALC 86146   Probe CHT Bayonet, Alcor $210.00  
ALC 86156 Probe EGT, Alcor $123.00  
ALC 86251

Bayonet Type CHT Probe
Length 15.0"
Probe Length 2.62" Max.
Yellow/Black Lead
Resistance 0.8+-0.1 Ohm

ALC 86245

Welded Boss Type EGT
Screw Type
Size 7/16-20
Length 12.2"
Red/Yellow Lead
Resistance 0.24 +-0.05 Ohm

ALC 86255

3 Year EGT Probe
Clamp Type
Size 3 3/8" max dia.
Length 13.81"
Red/Yellow Lead
Resistance 0.8 +-0.1 Ohm

ALC 86240

Welded Boss Type EGT
Screw Type
Size 7/16-20
Length 12.2"
Red/Yellow Lead
Resistance 0.8+-0.1 Ohm

ALC 86293

Clamp Type EGT Probe
Size 3 3/8" max dia.
Length 30"
Red/Yellow Lead
For ungrounded Mooney

ALC 86156

EGT Probes
Clamp Type
Size 3 1/4" max dia.
Length 9.56"
Red/Brown

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AN 5546-1

Part No.PHOTODescriptionCARTPrice
AN 5546-1 Probe AN Bayonet $215.00  

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CESSNA

Part No.PHOTODescriptionCARTPrice
CES S2334-3 Probe CHT Cessna $180.00  

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Electronics International Probes

Part No.PHOTODescriptionCARTPrice
EI P100 Probe CHT Screw-in Type, 3/8" -24 700 degree Max, Electronics International $85.00  
EI P101 Probe CHT Military Bayonet Type, 1/4 turn lock 700 degree Max, Electronics International $85.00  
EI A101 Probe CHT Bayonet Adapter, 3/8"-24, Electronics International $12.00  
EI P102 Probe CHT Gasket Type, 18mm 700 degree Max, Electronics International $85.00  
EI P102-38 Probe CHT Gasket Type, (Tanis), Electronics International $85.00  
EI P104   Probe CHT Universal Type, 700 degree Max, Electronics International $85.00  
EI P110 Probe EGT/TIT Hose Clamp Type, 13/64" hole, Electronics International $85.00  
EI P111 Probe TIT, 1/8" NPT with adjustable depth to 1.5", Electronics International $85.00  
EI P112 Probe TIT, 7/16"-20 with adjustable depth to 1.5", Electronics International $85.00  
EI P114   Probe TIT, 1/4" NPT with adjustable depth to 1.5", Electronics International $85.00  
EI P120 Probe Oil Temperature, 700 degree Max, Electronics International $85.00  
EI P128 Probe OAT/ Carburetor Temp, Electronics International $85.00  
EI RC-1 Tachometer Drive Plug, Electronics International $7.00  
NPT - National Pipe Thread Taper
Note! Pipe thread sizes do not refer to any physical dimensions. The outside diameter of a pipe or fitting must be measured and referenced to a table for size identification.
Note! Inserting a NPT tapered fitting into a port tapped for a straight thread fitting and tightening it can break or severely damage the item the fitting is being installed in.
Pipe Size
(inch)
Thread Pitch
TPI
Fitting O.D.
(inch)
NPT Specifications
1/16"270.313"
  • Tapered thread 1° 47'
  • Flat truncation of thread roots and crests
  • Thread angle 60°
  • Thread Pitch measured in threads per inch
1/8"270.405"
1/4"180.540"
3/8"180.675"
1/2"140.840"

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Temperature Probes

Exhaust Gas Probes

Part No.PHOTODescriptionCARTPrice
GEM 2870 Probe EGT Hose Clamp Type, Insight $53.50  
GEM 2871 Probe TIT Hose Clamp Type, Insight $114.50  
GEM 2872 Probe TIT Screw-in Type, Insight $135.00  

EGT Probe consists of a Chrome/Alumel thermocouple enclosed in a special long life alloy sheath attached to a stainless steel clamp. The probe tip is installed in a small hole in the exhaust stack, and held by the clamp. Probe wire leads are protected by a stainless steel overbraid. A grounded junction provides fast response.


Cylinder Head Probes

ILLUS   ILLUS

Four types of CHT probes are available from Insight. While either type is satisfactory, the low profile style is more often used since it does not have to be disturbed when removing spark plugs. Engines equipped with electrical cylinder head heaters must use the gasket type probe.

Part No.PHOTODescriptionCARTPrice
GEM 2853 Probe CHT, Insight
The gasket probe replaces the spark plug gasket.
$53.50  
GEM 2855 Probe CHT Bayonet Adapter, Insight
allows you to avoid using a gasket probe on the cylinder your CHT gauge monitors. For bayonet type probes.
$135.00  
GEM 2856 Probe CHT Threaded Adapter, Insight
allows you to avoid using a gasket probe on the cylinder your CHT gauge monitors. For screw-in type probes.
$135.00  
GEM 2852 Probe CHT Screw-in Type, Insight
The low profile style screws into threaded socket in cylinder head, common to virtually all aircraft engines.
$53.50  

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JPI Replacement Probes and Sensors

Part No.PHOTODescriptionCARTPrice
JPI M111 EGT probe, High Response, JP Instruments $95.00  
JPI M113 CHT probe, spark plug gasket, JP Instruments $95.00  
JPI 5050T CHT probe, threaded bayonet, JP Instruments $95.00  
JPI M111T TIT probe and extension lead, clamp on, JP Instruments $155.00  
JPI 400510 OAT probe, with shield and extension lead, JP Instruments $155.00  
JPI 400505LC Oil temperature probe, 1/8 NPT, Lycoming and Continental, JP Instruments $155.00  
JPI 400503   Oil probe collar adapter, 5/8-18 port to 1/8 NPT, JP Instruments $45.00  
JPI 400128 Carburetor Temperature probe, 1/4-24 thread or slim OAT probe, JP Instruments $155.00  
JPI M111IAT Induction air probe, 1/8 pipe or clamp, JP Instruments $155.00  
JPI M111CDT   Compressor discharge probe, 1/8 pipe or clamp, JP Instruments $155.00  
JPI 604010 Manifold pressure sensor, 0 to 60 inches Hg, 1/8 NPT, JR Instruments $230.00  
JPI 3060-18 Oil Pressure Sensor, 0-160 psi, 1/8 NPT, JP Instruments $142.00  
JPI 3060-17 Fuel Pressure Sensor, 5-32 psi, 1/8 NPT, JP Instruments $142.00  
JPI 420806   RPM pressurized mag sensor, for Bendix 20 series, JP Instruments $395.00  
JPI 420807   RPM pressurized mag sensor, for Bendix 1200 series, JP Instruments $395.00  
JPI 420809   RPM pressurized mag sensor, for Slick 4000, 6000 series, JP Instruments $395.00  
JPI 420815-2 Standard RPM vent plug sensor, fits any Bendix, JP Instruments $354.50  
JPI 420815-1 Standard RPM vent plug sensor, fits any Slick, JP Instruments $354.50  
JPI 159920   Shunt, 50 mV / 100 amp, JP Instruments $90.00  
JPI FF TESTER   Fuel flow tester, Generates pulses simulating Flow Scan fuel flow transducer, JR Instruments $35.00  
JPI 700901-1 Fuel Flow Pressure Transducer, 0.6-60 GPH, JP Instruments $375.00  
JPI 700901-2   Fuel Flow Pressure Transducer, 3-90 GPH, JP Instruments $375.00  
JPI 201   Flow Scan Pressure, JP Instruments $395.00  
JPI 231   Flow Scan Gravity, JP Instruments $395.00  
NPT - National Pipe Thread Taper
Note! Pipe thread sizes do not refer to any physical dimensions. The outside diameter of a pipe or fitting must be measured and referenced to a table for size identification.
Note! Inserting a NPT tapered fitting into a port tapped for a straight thread fitting and tightening it can break or severely damage the item the fitting is being installed in.
Pipe Size
(inch)
Thread Pitch
TPI
Fitting O.D.
(inch)
NPT Specifications
1/16"270.313"
  • Tapered thread 1° 47'
  • Flat truncation of thread roots and crests
  • Thread angle 60°
  • Thread Pitch measured in threads per inch
1/8"270.405"
1/4"180.540"
3/8"180.675"
1/2"140.840"

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UMA Replacement Probes and Senders>

UMA Probes & Senders

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Corp Replacement Probes

Part No.PHOTODescriptionCARTPrice
UN 111 Probe EGT K-Type, Universal Corp $53.00  
UN 112 Probe EGT E-Type, Universal Corp $53.00  
UN 510 Probe CHT, K-Type AN5541-1, Universal Corp $52.00  
UN 511 Probe CHT, J-Type AN5541-1, Universal Corp $55.00  

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