Model # SK278

Internet #203468207

IDEAL Security Replacement Cylinder

IDEAL Security

Replacement Cylinder

  • Replacement lock cylinder fits all standard cylinder holes
  • Also works with ideal security garage door latches
  • Made of brass, with 5 pins and Segal keyway blank
$850 /each
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Frequently Bought Together

Product Overview

Replacement locking cylinder. Five pin brass cylinder replaces standard locking cylinders, and locking cylinder in SK7160 garage door lock. Works with SK7115 to unlock unit, along with SKT9303 to lock the unit.

  • Fits all standard size cylinder holes
  • Five pin brass cylinder
  • Also works with SK7115 and SKT9303 or SKL9201 for garage doors
  • For all residential locks
  • Garage door hardware



Product Depth (in.)
Product Height (in.)
Product Width (in.)



Warranty / Certifications

Manufacturer Warranty
Limited one year warranty: With proof of purchase. Contact Ideal’s customer service for information on missing parts or specific application situations. Customer service: 1-800-361-2236 x 230 or visit our web site at

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Customer Questions & Answers

Can I get 2 of these that are keyed alike?

Asked by: Brian
No, we don't have them in stock, and we don't do custom orders.
Answered by: IdealSecurity
Date published: 2016-11-07

how long is the spindle?

inadequate answer given. please specify the entire length of the spindle, NOT JUST THE EXPOSED PART!!!!
The overall length of the attached spindle in the SK278 is 2.15" (54.59 mm).
Answered by: IdealSecurity
Date published: 2015-09-20

how long is the spindle

Ideal Security Inc. SK278 Replacement Cylinder, Brass by Ideal Security
The exposed portion of the spindle is 2"
Answered by: IdealSecurity
Date published: 2015-09-20
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Customer Reviews

Replacement Cylinder is rated 4.2 out of 5 by 6.
Rated 5 out of 5 by from exact replacement lock cylinder we have an old garage door and unfortunately we lost the key to the built-in garage door lock. we were not very confident we would find an exact replacement lock since the door was so old and we would end up having to replace the entire locking mechanism. initially, we were unsuccessful until we checked home depot's website and not only found the complete lock for our door, but also the lock cylinder which could be purchased separately. we purchased the lock cylinder only and it fit into the opening of my garage door and operated the locking mechanism perfectly. we saved a bunch of cash.
Date published: 2013-10-17
Rated 1 out of 5 by from Waste of time, even bigger waste of money! Decent lock with a very big problem. You can't get extra keys! I needed an extra key after the warranty was up and no one, Home Depot, Lowes, hardware stores, and professional locksmiths could make a working key. Locksmith was closest but too thick. Had to replace the cylinder lock with an American lock that I could get extra keys made. Learned my lesson. Make sure you can get extra keys when you buy the lock. If not, run!!!
Date published: 2015-01-08
Rated 4 out of 5 by from fit the old door. Could use a gasket My garage door lock froze after 18 years of service. Ordered this, and it it fit perfectly well in the slot. However, there was enough play between the lock and the inside lever that I had to make my own gasket out of cardboard to keep it from being too loose. Otherwise no issues. Initially installed it upside down because I didn't feel like reading directions (figured I had a 50/50 shot). I bought two in case the other door lock freezes up.
Date published: 2015-04-28
Rated 5 out of 5 by from great vlue the process was very easy to install fits well and works well great value for the money
Date published: 2015-12-29
Rated 5 out of 5 by from Easy to install I had lost the key to the garage door of a house that I was selling. I was not able to get a locksmith to fit a new key to it because of rules regarding garage doors and patio doors, so I ordered this lock online for around $10.00. It was easy to install and was a cheap fix for my problem. The long blade that goes into the hole and turns with the key, has grooves in it so that it can be shortened to the length you need. The lock works well,
Date published: 2014-07-22
Rated 5 out of 5 by from description was right on I have an older security door, and it was hard to find the right lock. The lock fit perfect.
Date published: 2014-01-07
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