McFarlane Aviation Products FAA-PMA Replacement Aircraft Parts

Product Search Results for "aero twin"

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X Category: Leads

Alcor Leads

  • High quality stranded material for flexibility and long life
    (cheapy single stranded leads are prone to break)
  • Used to attach a thermocouple probe to a gauge
  • Must be of the same type as the thermocouple
    (e.g. A type K probe must use type K leads)

 

Save with complete kits!

 

CHT Leads:

  • Integrated resistor ensures the same resistance regardless of length
  • Choose leads based on the distance from the probe to the gauge

 

CHT Type J Black and Yellow 

 

P/N 

Resistance 

Length 

42535 

7.76 +/- .20 Ohms 

90" 

42536 

7.76 +/- .20 Ohms 

144" 

42543 

7.76 +/- .20 Ohms 

216" 

42537 

7.76 +/- .20 Ohms 

240" 

 

EGT/TIT Leads:

  • Each length has a different resistance
  • Total resistance of the lead and the probe must match the calibration of the gauge
  • Choose replacement leads based on the calibration of the existing gauge
  • For a new system, choose leads based on the distance from the probe to the gauge and choose a gauge with the corresponding calibration.

 

EGT Type K Red and Yellow 

P/N 

Resistance 

Length 

42525 

4.34 +/- .08 Ohms 

90" 

42526 

2.71 +/- .06 Ohms 

144" 

42528 

6.52 +/- .11 Ohms 

216" 

42527 

7.25 +/- .12 Ohms 

240" 

 

Calibration note:
EGT gauges with relative lean to peak markings may be easily recalibrated in flight per the instructions provided with the gauge. TIT, CHT and EGT gauges with True Temperature markings must either be recalibrated with an Alcal System Tester or returned to Alcor for recalibration if the total lead and probe resistance does not match the gauge calibration.

 

Digital or amplified gauges from other manufacturers are not sensitive to lead resistance, therefore leads may be shortened as needed for these applications without requiring recalibration.
Part Number Description Your Price Stock
42523 EGT LEAD ADAPTER $11.58
42525 EGT LEADS 90"" TYPE K $55.62
42526 EGT LEADS 144"" TYPE K $68.26
42527 EGT LEADS 240"" TYPE K $97.28
42528 EGT LEADS 216"" TYPE K $95.97
42535 CHT LEADS 90"" 8 ohm TYPE J $60.59
42536 CHT LEADS 144"" 8 ohm TYPE J $73.31
42537 CHT LEADS 240"" 8 ohm TYPE J $107.57
42543 CHT LEADS 216"" 8 ohm TYPE J $92.60
98211 WIRE, BULK TYPE K $0.57

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