BEST 1E7434 Mortise Cylinder w...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$191.80
$136.21
BEST 1E7434 Mortise Cylinder, SFIC Housing

BEST 1E7434 Mortise Cylinder with SFIC Housing for Standard Mortise Applications

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Model: 1E7434C140RP3626
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$191.80
$136.21
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BEST 1E7434 Mortise Cylinder with SFIC Housing for Standard Mortise Applications

Professional SFIC Mortise Cylinder Component

The BEST 1E7434 mortise cylinder with SFIC housing is engineered for standard mortise lock applications requiring reliable interchangeable core functionality. This cylinder features machined brass or bronze bar stock construction with diagonal set screw security mounting and compatibility with BEST's 1E-C4 cam system. The SFIC housing design allows integration into existing BEST master key systems while providing enhanced security through the diagonal set screw that securely holds the cylinder in the housing.

Professional Features & Benefits

  • SFIC Housing Design: Small Format Interchangeable Core system allows quick core changes without disassembly for enhanced security management.
  • Machined Construction: Precision-machined from brass or bronze bar stock for exceptional durability and long-term performance in commercial applications.
  • Enhanced Security Mounting: Diagonal set screw mounts in cylinder wall and securely holds the cylinder in housing when tightened.
  • Standard Cam Compatibility: Includes standard 1E-C4 cam for mortise applications with option for different cams to work with other manufacturers' locks.
  • Master Key Integration: Compatible with existing BEST master key systems for comprehensive access control management.
  • Versatile Compatibility: Can be altered with different cams and cylinder rings for various manufacturer lock compatibility.
  • Professional Grade Materials: Available in multiple finishes to match existing hardware and architectural requirements.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Electronic: No
  • Lock Type: Mortise
  • Parts and Accessories Type: Replacement Parts
  • Product Attribute: Parts and Accessories
  • Product Category: Parts and Accessories
  • Product Group: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Parts and Accessories
  • Subcategory: Parts and Accessories

Installation & Operation

This mortise cylinder component is designed for use with compatible mortise lock systems. Refer to the parent mortise lock installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation.

Professional Applications

  • Commercial Office Building Access Control
  • Educational Facility Security Systems
  • Healthcare Institution Master Key Systems
  • Government and Municipal Buildings
  • Multi-Tenant Residential Properties
  • Industrial Facility Security Management
  • Retail Establishment Access Control

Why Choose BEST Quality?

BEST mortise cylinders deliver professional-grade reliability with precision-machined brass or bronze construction and diagonal set screw security mounting. The SFIC housing design provides enhanced security management capabilities while maintaining compatibility with existing BEST master key systems. Engineered for demanding commercial applications where dependable access control and security are essential.

Manufacturer Resources

Key and Core Brochure

Product Specs

Lock Type:
Mortise
Commercial/Residential:
Commercial
Product Group:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Attribute:
Parts and Accessories
Electronic:
No
Parts and Accessories Type:
Replacement Parts
Product Category:
Parts and Accessories
Department:
Door Hardware

BEST 1E7434C140RP3626 – Frequently Asked Questions

1) Does the BEST 1E7434 mortise cylinder take a small format interchangeable core?
Yes. The 1E7434 is a mortise cylinder housing built for BEST small format interchangeable cores, so the core pulls and drops in without taking the cylinder or the lock apart. That is what makes it a maintenance-friendly choice on a building where cores get rotated after turnover or a lost key. It also drops straight into an existing BEST master key system, so the opening can stay on the same hierarchy as the rest of the facility.
2) Which cam do I order with a BEST 1E7434 mortise cylinder?
The standard cam for mortise use is the 1E-C4. If the lock body is another manufacturer's, the cylinder can be ordered with a different cam instead, and nine cam numbers are offered: C140, C403, C405, C408, C413, C416, C417, C428 and C431. Identify the cam your lock body requires before ordering, because the cam is what engages the lock's retractor and the wrong one will turn without operating the lock.
3) Can a BEST SFIC mortise cylinder be used in another brand's mortise lock?
It can, provided you order it with the cam that brand's lock body needs, and add a cylinder ring where the lock face requires one. The 1E7434 is built to be altered with different cams and rings for other manufacturers' locks, which is how a facility standardizing on BEST keying keeps mixed-brand mortise lock bodies on one key system.
4) What else do I need to order to get a BEST SFIC mortise cylinder working?
Three things beyond the cylinder housing itself. An interchangeable core, cut and pinned to your key system, since the housing is the shell that receives it. The correct cam for your lock body. And a cylinder ring if the lock face needs one to make up the gap to the trim. If you pin your own cores, ZenSupply carries GMS small format IC cores un-combinated in 6-pin (IC6-26D) and 7-pin (IC7-26D), supplied as the core body only, without keys, pins, springs or caps.
5) What is an alternative SFIC mortise housing if I need a Yale cam instead of a BEST cam?
The GMS ICM7-ST is a BEST SFIC straight mortise housing in 7-pin with a Yale cam, so it addresses Yale-cam mortise locks directly out of the box. The BEST 1E7434 mortise cylinder with SFIC housing instead takes one of nine cam numbers ordered on the part - C140, C403, C405, C408, C413, C416, C417, C428 and C431 - so the cam is selected at order time rather than fixed. Both accept a small format interchangeable core.
6) I already have the mortise housing - do I need the 1E7434 or just a core?
If the housing is already in the lock and you only need the keyed core, order a core on its own: the GMS IC6-26D is a 6-pin small format IC core only, un-combinated, and the IC7-26D is the 7-pin version, both supplied without keys, pins, springs or caps. The BEST 1E7434 is the mortise cylinder with the SFIC housing itself, including the cam and diagonal set screw mounting, which is what you order when the housing is missing or being replaced.
7) How is the BEST 1E7434 mortise cylinder held in place once it's threaded into the lock?
A diagonal set screw mounted in the cylinder wall clamps the cylinder in the housing when tightened. Practically, that means you thread the cylinder to depth so the cam lines up with the lock retractor, then snug the set screw rather than relying on thread friction alone. The body itself is machined from brass or bronze bar stock.
8) Is the BEST 1E7434 a complete lock or just a replacement part?
It is a replacement cylinder component, not a lock. You install it into an existing mortise lock body, and the lock's own installation instructions govern how the cylinder and cam are set. It is a commercial-duty, non-electronic part intended for mortise lock type applications.
9) What's the difference between the BEST 1E7434 and the GMS straight mortise SFIC housing?
Both are small format IC mortise housings, so either will accept a BEST-compatible SFIC core. The difference is how they are specified. The GMS ICM7-ST is a straight 7-pin Best SFIC mortise housing supplied with a Yale cam, so it is a fixed configuration. The BEST 1E7434 is ordered with one of nine cam numbers and eight finishes, which is what you want when you are matching a specific lock body and existing trim rather than taking a stock cam.
10) We rekey units constantly on turnover. Is an SFIC mortise cylinder worth it over a conventional keyed cylinder?
For any portfolio with regular tenant turnover, yes. With a conventional cylinder you either pull it and repin it or replace it. With the 1E7434 the core swaps out at the door with a control key, no lock disassembly, so a unit turn takes minutes and the rest of the master key hierarchy stays intact. That is the reason SFIC dominates multi-tenant residential, schools, healthcare and office buildings where key control is an ongoing program rather than a one-time install.
11) My cylinder sits too deep or too proud of the trim - is there a fix other than a different cylinder?
For a projection or trim gap issue, the GMS KIT-PART04 collars kit supplies cylinder collars, which is the usual way to take up or dress the gap without changing the cylinder. The BEST 1E7434 mortise cylinder can also be altered with different cams and cylinder rings for compatibility with other manufacturers' locks, so collars and ring selection are part of the same adjustment path.
12) Will the 1E7434 work on a Corbin Russwin 2000 series classroom mortise lock, or do I need something else?
The BEST 1E7434 is a mortise cylinder with SFIC housing that can be altered with different cams and cylinder rings to suit other manufacturers' mortise locks, so cam selection is the deciding factor for a third-party lock body. If what you actually need is the operating trim and lock function for that opening, the ACSI 8500 Gemini is an operator only for a Corbin Russwin 2000 series classroom mortise lever lock body - a different part entirely, since it addresses the lock function rather than the keyed cylinder.
13) What finishes does the BEST 1E7434 mortise cylinder come in to match existing door hardware?
Eight finishes are offered: 605 bright brass, 606 satin brass, 612 satin bronze, 613 satin bronze oil-rubbed, 622 matte black, 625 bright chrome, 626 satin chrome and 690 statuary dark bronze. For a property manager matching a run of doors, 626 satin chrome and 613 oil-rubbed bronze are the two that most often line up with existing commercial lever trim. Only the visible cylinder face and ring show once installed, so match to the lock trim rather than the door.
14) Is a glass door lock strike box or an ASA strike a substitute for this cylinder?
No - those are frame-side parts, not keyed cylinders. The Cal-Royal ASA478 is a template ASA strike for commercial door hardware and the Codelocks CL4000-RSB is a glass door strike box for CL4000 or CL4500 glass door locks; both mount in the frame or glass door and accept the latch. The BEST 1E7434 is the mortise cylinder and SFIC housing that carries the key and turns the cam inside the lock body.
15) For a facility moving to electronic access control, is the 1E7434 still the right part?
The BEST 1E7434 is a non-electronic mortise cylinder for commercial mortise lock applications, keyed and mechanical. If the openings are going to credential-based control, the parts involved are different in kind - for example the Alarm Lock PRE2 is a proximity card enroller for HID and iClass and the DTMIII is a data transfer module for Trilogy electronic access control with 200-lock capacity. Many facilities run both, keeping SFIC cylinders on mechanical openings for master key integration.
How fast can I get the BEST 1E7434C140RP3626 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 BEST 1E7434C140RP3626 come with a warranty?
Absolutely. The BEST 1E7434C140RP3626 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 BEST 1E7434C140RP3626?
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 BEST 1E7434C140RP3626 from ZenSupply?
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