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SKY-TEC STS-M12 BATTERY/MASTER SOLENOID BY LAMAR

$83.75/Each
Part# 07-03564
MFR Model# STS-M12

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
  • Frequently Purchased With
  • Customers Also Viewed

Reviews

My Lycoming I0360A1B6 was cranking like I had a failing battery. The SKY-TEC STS-M12 returned my cranking RPM like a brained battery.

Danny K Verified Purchase

SKY-TEC STS-M12 BATTERY/MASTER SOLENOID BY LAMAR

September 21, 2022

Pafok O Verified Purchase

SKY-TEC STS-M12 BATTERY/MASTER SOLENOID BY LAMAR

July 5, 2022

Simple. Fits. Works.

Brent P Verified Purchase

SKY-TEC STS-M12 BATTERY/MASTER SOLENOID BY LAMAR

June 29, 2022

Works well. Be careful of your wiring as this unit is different than original.

Joseph J Verified Purchase

SKY-TEC STS-M12 BATTERY/MASTER SOLENOID BY LAMAR

June 17, 2022

Purchased but havent yet installed

Jeanne G Verified Purchase

SKY-TEC STS-M12 BATTERY/MASTER SOLENOID BY LAMAR

June 15, 2022

Product worked as expected shipping was on time as expected. I would buy it again if needed and recommended this product. My application was on a C-150 H

Nelson P Verified Purchase

SKY-TEC STS-M12 BATTERY/MASTER SOLENOID BY LAMAR

March 19, 2022

Replaced my original master/battery solenoid on my RV10 with this one. With my high CCA Li battery I needed the high in-rush this product provided versus replacing with cheaper versions. Included wiring diagram helped with install. Original was a 3-post. This is a 4-post. Still early in trying out phase but so good, so far

Dale C Verified Purchase

SKY-TEC STS-M12 BATTERY/MASTER SOLENOID BY LAMAR

December 10, 2021

great service and shipping time

Epic H Verified Purchase

SKY-TEC STS-M12 BATTERY/MASTER SOLENOID BY LAMAR

October 27, 2021

Good quality & good pricing.

Keith M Verified Purchase

SKY-TEC STS-M12 BATTERY/MASTER SOLENOID BY LAMAR

October 16, 2021

Perfect fit in my 1958 Cessna 175

Nathan J Verified Purchase

SKY-TEC STS-M12 BATTERY/MASTER SOLENOID BY LAMAR

May 21, 2021

Q&A

Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What is the total current draw of the solenoid when actuated?

The total current draw is 0.8 amps.

Q: What is the difference between STec-A12 and STec-M12 relays?

The STS-M12 is for the battery master. The STS-a12 is for Auxiliary master, like a GPU.

Q: What size are the power and coil terminals? Also what is the recommended mounting orientation? I note that the 11-03161 (White-Rogers) unit recommends Cap Down orientation.

The coil terminals are #10's and the power terminals are 5/16ths. It is recommended to mount per the airframe specifications. If none, it is recommended to mount with the cap up.

Q: Does this Lamar solenoid include the diode? If not do I need it and what part number would it be?

Per Vendor: This product does not include the diode. You do not need the diode for the part to work correctly, it is simply a safety precaution some like to take. The airframe manufacturer might have a diode they recommend.

Q: What is the warranty for this unit?

12 mo from date of installation of product or 500 hrs - whichever comes first. Log books are required for warranty

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