Medeco 12028006-05-G3 Cylinder...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$75.48
$65.77
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Medeco 12028006-05-G3 Cylinder Plug for Maxum Deadbolt, Biaxial 6-Pin G3 Keyway Replacement Part

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Model: 12028006-05-G3

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

$75.48
$65.77
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Medeco 12028006-05-G3 Cylinder Plug for Maxum Deadbolt, Biaxial 6-Pin G3 Keyway Replacement Part

The Medeco 12028006-05-G3 is a genuine OEM cylinder plug designed as a direct replacement component for the Medeco Maxum Deadbolt (excluding Captive models). Featuring Medeco's proprietary Biaxial pin tumbler technology with a 6-pin configuration and the G3 restricted keyway, this plug delivers the elevated security performance that Medeco is known for in commercial-grade door hardware. Finished in Bright Brass, it is engineered for seamless integration into compatible Maxum Deadbolt assemblies where plug replacement or rekeying service is required.

Key Features

  • Biaxial Pin Technology: Medeco's Biaxial design requires keys to rotate and elevate pins simultaneously, providing enhanced pick resistance beyond standard pin tumbler cylinders.
  • 6-Pin Configuration: Six-pin cylinder plug delivers a greater number of key combinations and a higher level of security for commercial deadbolt applications.
  • G3 Restricted Keyway: The proprietary G3 keyway is a restricted profile, limiting unauthorized key duplication and supporting controlled key management programs.
  • Maxum Deadbolt Compatibility: Designed specifically for the Medeco Maxum Deadbolt (except Captive models), ensuring a precise fit and reliable operation without modification.
  • Bright Brass Finish: Factory-applied Bright Brass finish coordinates with standard Maxum Deadbolt hardware for a consistent, professional appearance.
  • Genuine OEM Replacement Part: Sourced directly from Medeco as an authorized replacement plug, maintaining the original security specifications of the parent lock assembly.
  • Commercial-Grade Construction: Built to Medeco's commercial hardware standards, appropriate for demanding access control environments requiring high-security cylinder components.

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: 12028006-05-G3
  • Features: Medeco Tools, Parts and Accessories

Typical Applications

  • Commercial Office Buildings Requiring High-Security Deadbolt Maintenance
  • Healthcare Facilities with Controlled Key Management Programs
  • Educational Institutions Utilizing Medeco Restricted Keyway Systems
  • Government and Municipal Buildings with Security-Keyed Deadbolts
  • Retail Establishments Servicing Medeco Maxum Deadbolt Assemblies
  • Multi-Tenant Residential and Mixed-Use Properties with Commercial Lock Specifications
  • Locksmith and Security Professionals Performing Cylinder Plug Replacement

Why Medeco 12028006-05-G3?

Medeco cylinder components are engineered to deliver high-security performance through the combination of Biaxial pin technology and restricted G3 keyway profiles, providing both physical pick resistance and key control in a single plug. As a genuine OEM replacement part for the Maxum Deadbolt line, the 12028006-05-G3 ensures that repaired or rekeyed locks retain their original commercial-grade security specifications. This plug is the correct choice for security professionals and facility managers who require verified compatibility and uncompromised protection in every service call.

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:
12028006-05-G3
Features:
Medeco Tools, Parts and Accessories

Medeco 12028006-05-G3 – Frequently Asked Questions

1) What keyway and pin count does the Medeco Maxum replacement cylinder plug come in?
Biaxial, 6-pin, cut for the G3 keyway. G3 is a restricted Medeco profile, so keys can only be duplicated through authorized channels, and any existing keys you plan to reuse must already be G3 6-pin Biaxial. A plug in a different Medeco keyway will not accept your current keys.
2) Can I use this Medeco plug to replace a mortise or rim cylinder plug?
No. This one is built for the Maxum deadbolt cylinder and will not serve a mortise or rim housing. For a mortise plug ZenSupply carries the Corbin Russwin 121K11 1000 Series plug (offered in D2 and L4 keyways), and for a rim cylinder the Corbin Russwin 253K66 3000 Rim Cylinder Plug. Those are Corbin keyways, not Medeco, so they will not work in a Medeco key system.
3) Is there a Corbin Russwin cylinder plug that can replace the Medeco 12028006-05-G3 in a Maxum deadbolt?
No. The Medeco 12028006-05-G3 is a genuine OEM plug built specifically for the Medeco Maxum Deadbolt (excluding Captive models), with Biaxial 6-pin tumbler geometry and the restricted G3 keyway, so it only drops into a Maxum housing. Corbin Russwin plugs such as the 121K11-D2 and 121K11-L4 are 1000 Series mortise cylinder plugs on the Grade 1 mortise platform, and the 253K66 is a 3000 rim cylinder plug - different cylinder bodies entirely. If the deadbolt on the door is a Maxum, the Medeco plug is the part that fits; the Corbin Russwin plugs are for Corbin Russwin mortise and rim cylinders.
4) Does the Medeco 12028006-05-G3 come keyed, or does a locksmith have to pin it?
It's the plug itself, a service component for plug replacement or rekeying work on a Maxum deadbolt. Pinning it to your key system is part of the job, and because it is a Biaxial plug the pins have to be both elevated and rotated correctly, which means Medeco tooling and access to G3 key blanks.
5) What finish is the Medeco Maxum cylinder plug and will it match the rest of the deadbolt?
Bright Brass, finish code 605. That is the factory finish that coordinates with standard Maxum deadbolt trim, so on a brass Maxum the face of the plug matches. If your deadbolt is satin chrome or oil-rubbed bronze, the brass plug face will show against it.
6) Is this the right part if my Medeco deadbolt plug spins but the bolt won't throw?
A worn or damaged plug is exactly what this part addresses, and swapping it restores the cylinder side of a Maxum deadbolt. But it only covers the plug. If the failure is in the tailpiece, retainer, or bolt mechanism, replacing the plug alone won't fix it. Confirm the plug is the failed component before ordering.
7) What is the difference between the Corbin Russwin 121K11-D2 and 121K11-L4 plugs?
Both are Grade 1 1000 Series mortise cylinder plugs supplied as plug only, and both are cataloged with a cylinder function. The difference is the keyway suffix - D2 on one and L4 on the other - so the choice is dictated by which Corbin Russwin keyway the building is keyed to. Neither is interchangeable with the Medeco 12028006-05-G3, which uses Medeco's restricted G3 keyway and Biaxial pinning.
8) Is the Corbin Russwin 219F88-8 a substitute for a cylinder plug?
No. The Corbin Russwin 219F88-8 is a Grade 1 cylinder plug retainer - the retaining component that holds a plug in the cylinder body, not the plug itself. If you are replacing the keyed plug in a Medeco Maxum Deadbolt, the 12028006-05-G3 Biaxial 6-pin G3 plug is the part; the 219F88-8 is a Corbin Russwin service part that would be ordered alongside a Corbin Russwin cylinder rebuild.
9) If I do not need a restricted keyway, is there a simpler plug option than the Medeco 12028006-05-G3?
The Medeco 12028006-05-G3 carries the restricted G3 keyway and Biaxial pinning specifically for key control and pick resistance, and that plug is tied to the Medeco Maxum Deadbolt. Conventional alternatives exist only on other cylinder platforms: the Corbin Russwin 121K11-D2 and 121K11-L4 are 1000 Series mortise cylinder plugs and the 253K66 is a 3000 rim cylinder plug. Choosing one of those means changing the cylinder platform on the opening, not just the plug, so it suits a new or rebuilt Corbin Russwin cylinder rather than a service call on an existing Maxum.
10) Is a Medeco plug an aftermarket part or genuine Medeco?
Genuine Medeco OEM. The 12028006-05-G3 is an authorized Medeco replacement plug, so a repaired or rekeyed Maxum keeps the security specification it left the factory with. Aftermarket plugs are not available for Biaxial cylinders in any case, since the pinning geometry is proprietary.
11) Is the Medeco 12028006-05-G3 suitable for a commercial building key system?
It's a commercial-grade component, and the restricted G3 keyway is the point of it for facilities running controlled key management, offices, healthcare, schools, government buildings. Key duplication stays inside the authorized channel, and the Biaxial pinning adds pick resistance over a standard pin tumbler. Standardizing on G3 across a site means one blank and one authorization list.
How fast can I get the Medeco 12028006-05-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 12028006-05-G3 come with a warranty?
Absolutely. The Medeco 12028006-05-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 12028006-05-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
Why buy the Medeco 12028006-05-G3 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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