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Part# 13-18500


Skylock is an inexpensive throttle lock for aircraft with Cessna type push-pull throttles. The device will accept shafts up to .375" diameter, and is made of heavy-gauge cadmium plated steel. Skylock affords great peace of mind to aircraft owners at very little cost. Just put in place after every flight, secure with your own favorite padlock, and your throttle cannot be moved! Simple, but it works.


I have the ElectroAir EIS switch panel replacing my key magneto / start switch, so use this for aircraft security when I travel and park outside a hangar. It works perfectly with a combination lock on my Cardinal RG.

Keith M
November 2, 2020

We have 4 of these for club Cessna 172S aircraft. Needed to comply with NJ two lock rule for planes locked outside and with ElectroAirElectronic ignitions that replace key start with rocker switches.

January 26, 2019

Works great! I painted mine bright red and bought a small pad-lock for it.

Jim S
November 26, 2018

Bought it for my 1966 Cessna 150 - fits perfectly - I love it

Virgil R
May 12, 2017

Works great, I used a number dial padlock, also have another one with a keyed hitch pin. Dont like that setup as well as the numbered one.

March 5, 2017

Did not fit ACS own throttle cable as advised it would, still no resolution

Wayne G
December 1, 2017

Although the description states that it will work on Cessna push-pull throttles be advised that it will not fit over the early Cessna throttle knobs that have a larger, more rounded shape (similar to AS part #05-13700).

January 15, 2017


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 weight of one skylock?

These weigh approximately 0.4 lbs each.

Q: Does the SkyLock work with vernier throttles?

No. These do not work on vernier controls. You would have to use the ACS Products Lock p/n 13-08000.

Q: What is the maximum diameter throttle knob that it will accept?

This actually goes on the shaft behind the knob and will accept shafts up to .375" diameter.

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