Adams Rite MS4043 Hardened Ste...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$51.23
$30.58
Adams Rite MS4043 Hardened Steel Cylinder Guard with Anti-Vandalism Protection

Adams Rite MS4043 Hardened Steel Cylinder Guard with Anti-Vandalism Protection

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Model: MS4043-00-130
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$51.23
$30.58
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Adams Rite MS4043 Hardened Steel Cylinder Guard with Anti-Vandalism Protection

Professional Cylinder Security Solution for Narrow Stile Doors

The Adams Rite MS4043 Cylinder Guard provides essential protection for mortise cylinders in narrow stile door applications. This hardened-steel security ring prevents cylinder removal through vandalism or forced entry attempts, addressing the vulnerability of standard brass cylinders that can be torn from doors using leverage tools. Designed for 1/8" stile walls with optional MS4043-01 variant available for 1/4" thick applications, this cylinder guard offers three-way defense against unauthorized cylinder manipulation.

Professional Features & Benefits

  • Specifically engineered for narrow stile aluminum doors
  • Hollow metal and wood door options available
  • Accepts standard Adams Rite MS® cam mortise cylinders
  • Multiple finish options: US3, US4, US10B, US32, US32D
  • UL Listed models available
  • Compatible with Adams Rite electric strikes for access control
  • An ASSA ABLOY Group brand

Technical Specifications

  • For complete technical specifications, contact Adams Rite at 1-800-626-7590 or visit adamsrite.com.

Installation & Operation

This cylinder guard accessory is designed for use with compatible mortise cylinders in narrow stile door applications. Refer to the parent device installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Adams Rite Quality?

Adams Rite cylinder guard products deliver professional-grade security enhancement with hardened-steel construction engineered to withstand vandalism and forced entry attempts. The MS4043 addresses the critical vulnerability of standard brass cylinders in narrow stile applications, providing reliable protection where security is essential. Engineered for demanding commercial applications where dependable cylinder protection and long-term durability are required.

Product Specs

Series:
MS4043 Series
Product Group:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Subcategory:
Cylinder and Accessories
Commercial/Residential:
Commercial
Product Model:
MS4043
Product Category:
Parts and Accessories
Department:
Door Hardware
Product Type:
Cylinder Guards

Adams Rite MS4043-00-130 – Frequently Asked Questions

1) Will the Adams Rite MS4043 cylinder guard fit my narrow stile aluminum door?
The MS4043 is built for narrow stile aluminum doors, and the number you need before ordering is the stile wall thickness, meaning the thickness of the aluminum face the cylinder passes through. The guard is ordered for either a 1/8 inch stile wall or a 1/4 inch stile wall, so measure that face first. Hollow metal and wood door options are also offered. If your stile wall is 1/4 inch and you order the 1/8 inch guard, it will not seat correctly.
2) What does a cylinder guard actually do, and do I need one on my storefront door?
A cylinder guard is a hardened steel ring that sits around the mortise cylinder in the door face. Standard brass cylinders can be gripped and torn out of a narrow stile door with a pipe wrench or slide hammer, which leaves the lock open in seconds. The MS4043 ring covers that exposed brass so there is nothing to grab. It is not a lock and it does not replace the cylinder, it protects the one you already have. On a storefront aluminum door in a location that has seen pulled cylinders or attempted forced entry, it is the cheapest fix for that specific vulnerability.
3) Which mortise cylinder works with the Adams Rite MS4043 guard?
Standard Adams Rite MS cam mortise cylinders. Order the guard to match the cylinder you are protecting: there are versions for 5 or 6 pin cylinders and a version for cylinders 1-5/16 to 1-7/16 inches long. The cylinder length version is only offered for 1/8 inch stile walls. Get the cylinder length wrong and the ring will either stand proud of the door face or bottom out before the cylinder seats.
4) How do I order the right MS4043, what do I have to specify?
Two choices decide the part. First, stile wall thickness: 1/8 inch or 1/4 inch. Second, the cylinder it goes over, either a 5 or 6 pin cylinder or one measuring 1-5/16 to 1-7/16 inches long. Then pick the finish, 335 black, 313 dark bronze, or 628 clear anodized. The 1/4 inch stile wall version is also catalogued as the MS4043-01. Measure the stile wall and the cylinder before you order, because those two are what a return gets caused by.
5) What finishes does the Adams Rite MS4043 cylinder guard come in, and will it match my existing door hardware?
Three anodized finishes are stocked: 335 black anodized, 313 dark bronze anodized, and 628 clear anodized. Those are the standard aluminum storefront finishes, so 628 matches clear or mill aluminum doors, 313 matches dark bronze storefront, and 335 matches black. All three are offered on both the 1/8 inch and the 1/4 inch stile wall versions, so finish and stile thickness are independent choices. If you are standardizing a building, pick one finish and it carries across every opening regardless of stile wall.
6) Is the MS4043 cylinder guard suitable for a school or hospital, or is it a residential part?
Commercial. The MS4043 is a commercial grade part, and the applications it is built for are office buildings, schools, healthcare facilities, retail, industrial and warehouse buildings, multi tenant residential, and government buildings. For an MRO buyer standardizing across a campus, the same guard covers every narrow stile aluminum entrance in the portfolio, with the stile wall and cylinder length varying opening by opening rather than the part itself.
How fast can I get the Adams Rite MS4043-00-130 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 Adams Rite MS4043-00-130 come with a warranty?
Absolutely. The Adams Rite MS4043-00-130 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 Adams Rite MS4043-00-130?
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 Adams Rite MS4043-00-130 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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