Arrow RLX-44-201 Tailpiece Pac...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$13.13
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Arrow RLX-44-201 Tailpiece Pack for RLX, QL, HK and MLX Series SFIC 6 and 7-Pin Cylinders

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Model: RLX-44-201

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

$13.13
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Arrow RLX-44-201 Tailpiece Pack for RLX, QL, HK and MLX Series SFIC 6 and 7-Pin Cylinders

The Arrow RLX-44-201 Tailpiece Pack is a genuine commercial-grade replacement component designed for use with Arrow RLX, QL, HK, and MLX Series Small Format Interchangeable Core (SFIC) cylinders in both 6-pin and 7-pin configurations. Purpose-built for professional door hardware maintenance and service, this tailpiece pack ensures accurate fit and reliable operation when replacing worn or damaged tailpieces in compatible cylinder assemblies. Engineered to Arrow's exacting commercial standards, this part delivers consistent performance in demanding institutional and commercial environments.

Key Features

  • Broad Series Compatibility: Designed specifically for Arrow RLX, QL, HK, and MLX Series SFIC cylinders, providing a single replacement solution across multiple product lines.
  • 6 and 7-Pin SFIC Support: Compatible with both 6-pin and 7-pin Small Format Interchangeable Core configurations, maximizing flexibility for service technicians and locksmiths.
  • Genuine Arrow Replacement Part: Manufactured as an authentic Arrow component, ensuring proper fit, finish, and function within compatible cylinder assemblies.
  • Commercial-Grade Construction: Built to Arrow's commercial standards for durability and consistent performance in high-demand applications.
  • Simplified Maintenance: Provides the correct tailpiece components in a single pack, streamlining cylinder service and reducing downtime during repairs or upgrades.

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: Cylinders
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: RLX-44-201
  • Features: Arrow Parts

Typical Applications

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

Why Arrow RLX-44-201?

Arrow has long been recognized for engineering commercial-grade door hardware components that meet the rigorous demands of institutional and professional environments. The RLX-44-201 Tailpiece Pack reflects that commitment, delivering an authentic replacement part precisely engineered for RLX, QL, HK, and MLX Series SFIC cylinders in 6 and 7-pin configurations. For facilities managers, locksmiths, and contractors who depend on reliable hardware performance, Arrow parts provide the confidence of a proper OEM fit every time.

Manufacturer Resources

Arrow Express Catalog

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:
Cylinders
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
RLX-44-201
Features:
Arrow Parts

Arrow RLX-44-201 – Frequently Asked Questions

1) Which Arrow cylinders does the RLX-44-201 tailpiece pack fit?
The RLX-44-201 tailpiece pack is made for Arrow RLX, QL, HK and MLX Series Small Format Interchangeable Core cylinders, and it covers both 6-pin and 7-pin SFIC configurations. If your housing is one of those four Arrow series, this is the OEM tailpiece part to order.
2) Will an Arrow SFIC tailpiece pack work on a full size interchangeable core cylinder?
No. The RLX-44-201 is a small format interchangeable core (SFIC) part, so it does not serve FSIC housings. For a full size interchangeable core application, look at an FSIC product such as the Schlage Commercial 20-057 6-pin FSIC rim cylinder with convertible tailpiece cam instead.
3) Do I need a different tailpiece for a 7-pin core than a 6-pin core?
Not with this pack. The Arrow RLX-44-201 supports both 6-pin and 7-pin SFIC configurations, so one part number covers either core depth across the RLX, QL, HK and MLX series. That is useful if you keep a mixed 6 and 7-pin system in one building.
4) Is the RLX-44-201 a complete cylinder or just the tailpiece?
It is a replacement tailpiece pack only, not a cylinder or a core. There are no pins, no housing and no keys in it. If you need the whole cylinder, you are shopping a different part; this is the service component you install into an existing Arrow SFIC assembly.
5) Does the Arrow RLX-44-201 include a cylinder core, or do I need to order a core separately?
The RLX-44-201 is a tailpiece pack only - a replacement part for Arrow RLX, QL, HK and MLX Series small format interchangeable core cylinders in 6-pin and 7-pin configurations. It contains the tailpiece components, not a keyed core. If the job needs an actual interchangeable core, that is a separate item such as the BEST 1CB 150 Series interchangeable core cylinder or the BEST 1CDF drill resistant patented 7-pin interchangeable core.
6) What looks like a substitute for the Arrow RLX-44-201 but will not function as one?
Parts that carry a tailpiece in the name are the easy mix-up. The Schlage 20-021 and 20-022 are complete 6-pin rim cylinders with vertical and horizontal tailpiece cams respectively, and the Corbin Russwin 3070 is a 6-pin rim cylinder housing with a 1-7/8 inch tailpiece - those are cylinder assemblies, not loose tailpieces for an Arrow SFIC housing. The BEST 12E Series dummy rim cylinder with a 1-5/32 inch diameter is unkeyed trim and carries no working tailpiece function at all. The RLX-44-201 is specific to Arrow RLX, QL, HK and MLX Series SFIC cylinders in 6-pin and 7-pin builds.
7) Is this an OEM Arrow part or an aftermarket tailpiece?
Genuine Arrow. It is manufactured as an authentic Arrow component for proper fit and function inside compatible Arrow cylinder assemblies, which matters when a facility is standardized on Arrow SFIC hardware and you do not want mixed aftermarket parts in the system.
8) I have an Emtek handleset with a bad cylinder - does the Arrow RLX-44-201 tailpiece fit it?
No. The RLX-44-201 tailpiece pack is engineered for Arrow RLX, QL, HK and MLX Series SFIC cylinders. For Emtek, the Medeco 1065244 is a 5-pin rim lazy motion rim type cylinder supplied with an Emtek tailpiece, the Medeco 1065140 is a 5-pin retrofit cylinder listed for Emtek handleset and deadbolt outside cylinder use, and the Emtek CY4 is an Emtek cylinder sold each.
9) What is the difference between the Arrow RLX-44-201 and a full size interchangeable core cylinder like the Schlage 20-057-C?
They sit at different levels of the assembly and use different core formats. The RLX-44-201 is a tailpiece pack for small format interchangeable core (SFIC) cylinders in Arrow's RLX, QL, HK and MLX Series, covering both 6-pin and 7-pin builds. The Schlage 20-057-C is a full size interchangeable core (FSIC) cylinder in a C keyway with a 643E Aged Bronze finish. SFIC and FSIC cores are not interchangeable with each other, and the Arrow part is a service component rather than a keyed cylinder.
10) Will the Arrow RLX-44-201 work on a mortise cylinder?
The RLX-44-201 is built for Arrow RLX, QL, HK and MLX Series small format interchangeable core cylinders in 6-pin and 7-pin configurations, which use a tailpiece rather than a mortise cam. Mortise applications take a cam-driven cylinder instead, such as the Corbin Russwin 1000 Grade 1 Series mortise cylinder at 1-1/2 inch with an A02 straight cam, the Corbin Russwin 1070 Grade 1 Series 1-1/4 inch 6-pin mortise housing with an A01 cloverleaf cam, or the Detex MC65 mortise cylinder in Schlage C keyway at 1-1/8 inch, 6-pin.
11) Is the Arrow RLX-44-201 a suitable part for a key-in-knob or key-in-deadbolt repair?
No - the RLX-44-201 is a tailpiece pack for Arrow RLX, QL, HK and MLX Series SFIC cylinders, a replacement component rather than a keyed knob or deadbolt cylinder. For key-in-knob and deadbolt replacements, the Kaba Ilco 1539 Series is a key-in-knob and lever universal cylinder, the 1549 Series is a key-in-deadbolt cylinder, the 1579 Series is a knob and lever cylinder for Sargent, and the 1599 is a key-in-knob replacement cylinder.
12) For a storefront or narrow stile aluminum door, is the Arrow RLX-44-201 the right cylinder part?
The RLX-44-201 serves Arrow RLX, QL, HK and MLX Series SFIC cylinders in commercial applications and is a tailpiece component, not a storefront cylinder assembly. Narrow stile aluminum work typically calls for Adams Rite hardware: the 4024 cylinder pull with trim plate mounting and the 4025 five pin tumbler cylinder pull with through-screws are both designed for use with the Adams Rite MS1847 deadlock or deadlatch, while the Adams Rite 4036 is a Grade 1 mortise cylinder with five-pin security and a 1/2 inch minimum door thickness.
13) Is the Arrow RLX-44-201 rated for commercial use or is it a residential part?
Commercial. It is built to Arrow's commercial standards and is intended for institutional and commercial service work, offices, schools, healthcare, government buildings, multi-tenant residential, warehouses and retail.
14) Can I use the Arrow RLX-44-201 to service a key-in-lever cylinder on a Falcon lock?
The RLX-44-201 is matched to Arrow RLX, QL, HK and MLX Series SFIC cylinders, so it is not the service part for another manufacturer's key-in-lever cylinder. For Falcon, the A23161-05 G is a key-in-lever cylinder for the RU/T Series with a 6-pin G keyway, keyed different, supplied with 2 cut keys.
15) How many pieces come in the Arrow RLX-44-201 pack?
It ships as a pack of the correct tailpiece components for one part number, sold as a single orderable item under model RLX-44-201. There is one configuration, so there is nothing to specify beyond the part number when you order.
How fast can I get the Arrow RLX-44-201 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 Arrow RLX-44-201 come with a warranty?
Absolutely. The Arrow RLX-44-201 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 Arrow RLX-44-201?
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 Arrow RLX-44-201 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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