Medeco 12028006-18-G3 Cylinder...
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$75.48
$65.77
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Medeco 12028006-18-G3 Cylinder Plug for Maxum Deadbolt, Biaxial 6-Pin G3 Keyway, Bright Nickel

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Model: 12028006-18-G3

In Stock (leaves warehouse same day if ordered before 3pm ET)

$75.48
$65.77
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Medeco 12028006-18-G3 Cylinder Plug for Maxum Deadbolt, Biaxial 6-Pin G3 Keyway, Bright Nickel

The Medeco 12028006-18-G3 is a precision-engineered replacement cylinder plug designed specifically for the Medeco Maxum Deadbolt (except Captive models), featuring Medeco's renowned Biaxial technology with a 6-pin configuration and G3 keyway in a Bright Nickel finish. As a genuine Medeco part, this cylinder plug maintains the full high-security performance of the Maxum deadbolt platform, delivering the elevated pick and drill resistance that Medeco products are engineered to provide. Intended for commercial-grade applications, it is a direct-fit replacement that restores factory-level security and function to compatible Maxum installations.

Key Features

  • Biaxial Technology: Medeco's Biaxial pin tumbler design requires keys cut at precise angles as well as heights, providing significantly elevated resistance to picking and unauthorized key duplication compared to standard cylinders.
  • 6-Pin Configuration: Six-pin cylinder construction delivers enhanced key combination complexity for superior key control and security depth in commercial deployments.
  • G3 Keyway: G3 keyway specification ensures controlled key access, restricting key blanks to the Medeco system and supporting key control programs.
  • Maxum Deadbolt Compatibility: Engineered as a direct replacement plug for Medeco Maxum Deadbolt cylinders, excluding Captive variants, preserving factory-level security performance and fit.
  • Bright Nickel Finish: Bright Nickel surface treatment provides a polished aesthetic suitable for coordinating with complementary door hardware finishes in commercial environments.
  • Genuine Medeco Replacement Part: Classified as an authentic Medeco part and accessory, ensuring proper tolerances, material quality, and compatibility with the Maxum deadbolt platform.
  • Commercial-Grade Application: Rated and intended for commercial use, supporting high-security access control requirements in demanding professional environments.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Cylinder Plug
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 12028006-18-G3
  • Features: Medeco Tools, Parts and Accessories

Typical Applications

  • Commercial Office Buildings Requiring High-Security Key Control
  • Educational Facilities with Controlled Access Programs
  • Healthcare Institutions with Restricted Key Distribution
  • Government and Municipal Buildings
  • Financial Institutions and Banks
  • Multi-Tenant Commercial Properties
  • Industrial Facilities Requiring Cylinder Plug Replacement or Rekeying

Why Medeco Maxum?

Medeco's Maxum Deadbolt platform is engineered around the Biaxial pin tumbler system, a design that demands keys cut to precise angular specifications in addition to standard depth cuts, raising the bar for pick resistance and key control well beyond conventional cylinders. The 6-pin G3 keyway configuration further tightens unauthorized duplication control, making this genuine Medeco replacement plug the correct choice for restoring the full security integrity of any compatible Maxum installation.

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Cylinder Plug
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
12028006-18-G3
Features:
Medeco Tools, Parts and Accessories

Medeco 12028006-18-G3 – Frequently Asked Questions

1) Will the Medeco 12028006-18-G3 plug fit any Maxum deadbolt?
It fits Medeco Maxum Deadbolt cylinders with one exception: Captive models are excluded. If the deadbolt in the door is a Captive Maxum, this plug is not the right part. For all other Maxum deadbolts it goes in as a direct replacement plug.
2) Do I need G3 keyway blanks for this Medeco cylinder plug?
Yes. The plug is cut for the Medeco Biaxial G3 keyway, so it keys only to G3 blanks within the Medeco restricted system. If your building's key system runs a different Medeco keyway, this plug will not take your existing keys and you would need the plug in your own keyway section.
3) Can a Corbin Russwin cylinder plug be used to repair a Medeco Maxum deadbolt?
No. The Medeco 12028006-18-G3 is a Biaxial 6-pin plug with a G3 keyway made as a direct-fit replacement for the Medeco Maxum Deadbolt (except Captive models), so its plug geometry and pin chambers match the Medeco Biaxial system only. Corbin Russwin plugs such as the 121K11-D2 and 121K11-L4 are mortise cylinder plugs for the Corbin Russwin 1000 Series, and the 253K66 is a plug for the Corbin Russwin 3000 rim cylinder. Those are different cylinder platforms and different keyways, so a Maxum repair needs the Medeco plug.
4) Is this a 5-pin or 6-pin Medeco plug?
Six-pin. The 12028006-18-G3 is a 6-pin Biaxial plug, so the keys must match a 6-pin Maxum bitting. A 5-pin key from another Medeco cylinder will not operate it.
5) What is Biaxial and does it change how I cut keys for this plug?
Biaxial is Medeco's pin tumbler system that requires each cut at a precise angle as well as a depth. Cutting keys for this plug takes Medeco Biaxial code and angle data on a machine set up for it, not a standard depth-only duplicator. That is also what gives the plug its pick and unauthorized-duplication resistance.
6) My Maxum deadbolt was picked or drilled. Do I replace the whole lock or just the plug?
If the deadbolt body and housing are sound and the damage is in the plug, this genuine Medeco plug restores the cylinder to factory function and security without swapping the entire deadbolt. It is made to Medeco tolerances for the Maxum platform, so fit and pin alignment match the original.
7) I need a plug for a rim cylinder on an exit device. Is the Medeco 12028006-18-G3 the right part?
No. The Medeco 12028006-18-G3 is a cylinder plug for the Medeco Maxum Deadbolt. For a rim cylinder, the Corbin Russwin 253K66 is a 3000 rim cylinder plug and is the correct part type for that housing.
8) Is a cylinder plug retainer the same thing as a cylinder plug?
No, and they are not interchangeable. The Medeco 12028006-18-G3 is the rotating plug itself, carrying the Biaxial 6-pin chambers and G3 keyway that the key enters. The Corbin Russwin 219F88-8 is a Grade 1 cylinder plug retainer, the small component that holds a plug in its shell. If the key cuts or pin chambers are the problem you need a plug; if the plug is loose in the shell you are looking at a retainer.
9) For standardizing key control across a commercial facility, how does the Medeco Maxum plug differ from the Corbin Russwin plug options?
The Medeco 12028006-18-G3 uses Biaxial pin tumbler technology, which requires keys cut at precise angles as well as depths, with a 6-pin configuration and a restricted G3 keyway that keeps key blanks inside the Medeco system. The Corbin Russwin mortise plugs 121K11-D2 and 121K11-L4 are Grade 1 1000 Series plugs identified by their own keyway designations. The choice follows whichever keying system the facility already maintains, since a plug only serves the cylinder platform it was made for.
10) What finish does the Medeco Maxum replacement plug come in?
Bright Nickel, finish code 618. That is the only finish offered on this plug, so if the rest of the deadbolt trim is a brass or bronze finish the plug face will read brighter than the surrounding hardware.
11) Is this Medeco plug a residential or commercial part?
Commercial. It is catalogued for commercial use and is aimed at key control programs in offices, schools, healthcare, government buildings, banks and multi-tenant properties, where restricted keyways matter more than they do on a house.
12) Is a plug retainer included with the Medeco 12028006-18-G3?
What ships is the replacement plug itself. Retainers are ordered separately as their own part; on the Corbin Russwin side, for example, the 219F88-8 is a stand-alone Grade 1 cylinder plug retainer. Plan on reusing the retaining hardware from the Maxum cylinder you are servicing.
How fast can I get the Medeco 12028006-18-G3 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Medeco 12028006-18-G3 come with a warranty?
Absolutely. The Medeco 12028006-18-G3 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Medeco 12028006-18-G3?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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