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Sky-Tec Sts-M12 Battery/Master Solenoid By Lamar

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Part numbers : RX1-07-03564 , STS-M12 , 07-03564
Unit of Measure: EA

118.97 EUR / EA 118.97 EUR 118.97 € excl. VAT

118.97 EUR / EA excl. VAT

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Availability
Up to 23 EA ready to ship on Thursday 2026-09-03
Order before 16:00 CET Tomorrow
Up to 29 EA ready to ship on Monday 2026-09-07
Order before 16:00 CET Tomorrow
31 EA available on request, fees apply
Special order from vendor stock.

The Sky-Tec STS-M12 by Lamar is a 12 V continuous-duty battery/master solenoid for aircraft electrical-system maintenance and replacement requirements.

Its conventional terminal layout and single coil terminal support straightforward installation where the applicable STS-M12 configuration is specified. The coil is activated by grounding the S terminal; the opposite side of the coil is connected to the battery terminal.

  • Manufacturer part number: STS-M12
  • 12 V continuous-duty battery/master solenoid
  • Silver contacts rated by the supplied product information for 300 A in-rush and 150 A continuous-duty capability
  • All-metal case construction
  • Low-current coil and light spring design
  • FAA-PMA approved, according to the supplied product information

Associated product documentation listed for this solenoid includes FAA-PMA eligibility information, ST80001 drawing and installation instructions, Service Bulletin No. 72 Rev A, and an STS-M12 certificate. Verify the applicable part number, installation data and approval basis against the aircraft records before purchase or installation.

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Overview

FAA-PMA APPROVED for Certified Aircraft

Continuous Duty (Battery/Master Solenoid). Available in 12V and 24V. Activation: -(Ground) to S-Terminal. (Floating ground frame).

All stock meets Service Bulletin 72.

Features

  • Silver Contacts provide 300A in-rush & 150A continuous-duty capability Much higher than OE units
  • Light spring and low-current coil for excellent engagement and holding capability
  • Single coil terminal (other end of coil connected to Battery terminal)

Specifications

  • FAA-PMA Certified - stop using automotive parts and operating in the 'gray area' (aka. non-conformance) of the FAR's!
  • Lamar has retooled & upgraded the GOOD, "old-school" aircraft solenoids!
  • High Quality Manufacturing designed to take the beating our piston aircraft dish out
  • Upgraded to perform best with today's lightweight, high torque starters
  • Not automotive store parts with extra mystery terminals
  • Same OE terminal layout used for decades on our aircraft - simple to install
  • Silver contacts (vs. copper) for high-current capability and long-life
  • All-metal case construction



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