BEST 1EE Series Slabbed Lost M...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$286.00
$261.31
BEST BEST 1EE Series Slabbed Lost Motion Mortise Cylinder 7-Pin with Premium Core, 1-5/32" Diameter BES-1EE-PREMIUM

BEST 1EE Series Slabbed Lost Motion Mortise Cylinder with Premium Core - 7-Pin 1-5/32" Diameter

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Model: BES-1EE7E4-C4RP3626-PC
From the E Series Cylinders Collection
$286.00
$261.31
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$286.00
$261.31
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BEST 1EE Series Slabbed Lost Motion Mortise Cylinder with Premium Core - 7-Pin 1-5/32" Diameter

Professional Mortise Cylinder with Premium Security Core

The BEST 1EE Series mortise cylinder delivers professional-grade security with a premium 7-pin core configuration and 1-5/32" diameter construction. This slabbed lost motion design features solid brass or bronze construction with 1-1/4" effective length for 7-pin applications. The cylinder includes C229 cam and RP2 ring package standard, providing reliable operation for commercial mortise lock applications.

Professional Features & Benefits

  • Premium 7-Pin Security: Enhanced security configuration with 1-1/4" effective length for superior key control and pick resistance.
  • Precision Diameter: 1-5/32" diameter ensures proper fit in standard mortise lock applications with consistent operation.
  • Heavy-Duty Construction: Solid brass or bronze materials provide exceptional durability and corrosion resistance for long-term performance.
  • Complete Hardware Package: Includes C229 cam and RP2 ring package standard for immediate installation without additional components.
  • Lost Motion Design: Slabbed lost motion mechanism prevents unauthorized manipulation while maintaining smooth key operation.
  • Flexible Configuration: Available in right-hand (RH) or left-hand (LH) configurations to match specific door hardware requirements.
  • Special Length Options: Custom 2" and 2-1/4" cylinder lengths available for specialized applications requiring extended reach.

Technical Specifications

  • Collection: E Series Cylinders
  • Commercial/Residential: Residential
  • Department: Door Hardware
  • Parts and Accessories Type: Replacement Parts
  • Product Attribute: Parts and Accessories
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Product Subgroup: Cylinders
  • Product Type: Cylinders
  • Series: 1EE Series
  • Subcategory: Parts and Accessories

Installation & Operation

This replacement cylinder is designed for use with compatible BEST mortise lock hardware. 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
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities

Why Choose BEST Quality?

BEST 1EE Series cylinders deliver professional-grade reliability with solid brass or bronze construction engineered for demanding commercial applications. The premium 7-pin core configuration provides enhanced security while the lost motion design ensures dependable operation. Backed by comprehensive technical documentation and service support for long-term performance assurance.

Manufacturer Resources

E Series Service Manual

Product Specs

Series:
1EE Series
Subcategory:
Parts and Accessories
Product Group:
Parts and Accessories
Product Subgroup:
Cylinders
Product Type:
Cylinders
Commercial/Residential:
Residential
Collection:
E Series Cylinders
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Category:
Mechanical Locks
Department:
Door Hardware

BEST BES-1EE7E4-C4RP3626-PC – Frequently Asked Questions

1) What has to be specified when ordering a BEST 1EE mortise cylinder?
Four things are required on the order: keyway (WA, WB, WC, WD, WE, WG, WH, WK or WY), handing (right hand or left hand), keymark, and marking number. Handing matters on this one because the slabbed lost motion design is built RH or LH, not reversible in the field. Finish, cam/spindle option, and ring are the remaining choices.
2) Is the BEST 1EE a 6-pin or 7-pin cylinder, and how long is it?
It is a 7-pin premium core cylinder with a 1-1/4 inch effective length for 7-pin applications, in the 1-5/32 inch diameter body. If you need a longer cylinder to reach through thicker trim or a deeper prep, special 2 inch and 2-1/4 inch lengths are offered.
3) Does the BEST 1EE cylinder come with a cam and ring, or do I order those separately?
A C229 cam and RP2 ring package ship with the cylinder as standard, so no separate cam or collar order is needed for a normal mortise installation. If your application differs you can select an alternate cam or spindle, and the ring choice covers 3E mortise, 6-pin mortise, 7-pin mortise, rim cylinder and tapered cylinder.
4) I need a mortise cylinder but my locks are Schlage or Corbin Russwin keyed. What else is there?
The BEST 1EE runs BEST keyways (WA through WY), so it fits a BEST keying system. For other systems ZenSupply carries the Corbin Russwin 1000 Grade 1 mortise cylinder in 1-1/2 inch with an A02 straight cam, the Corbin Russwin 1080 1-1/2 inch LFIC 6-pin with an A01 cam for Schlage L9000 mortise locks, and the Detex MC65 mortise cylinder in 1-1/8 inch 6-pin with a Schlage C keyway.
5) Can I keep my existing keys if I swap in a BEST 1EE cylinder?
Yes, provided your system uses one of the BEST keyways offered (WA, WB, WC, WD, WE, WG, WH, WK, WY) and you supply the keymark for your system. Keymark and marking number are required entries on the order, which is how the cylinder is cut to your existing key system rather than keyed at random.
6) Will the BEST 1EE mortise cylinder work on an Adams Rite MS deadlock?
The 1EE can be ordered with an Adams Rite MS cam as a cam option, which is what an MS deadlock requires. If you would rather use Adams Rite's own part, the 4036 is a Grade 1 mortise cylinder with five-pin security and a 1/2 inch minimum door thickness. For MS1847 deadlock and deadlatch openings needing a pull, the Adams Rite 4024 mounts with a trim plate and the 4025 is a five pin tumbler cylinder pull with through-screws.
7) What is the closest equivalent to the BEST 1EE Series mortise cylinder from another manufacturer?
For a 1-1/4 inch mortise housing, the Corbin Russwin 1070 Grade 1 Series is the nearest peer: it is a 1-1/4 inch 6-pin mortise housing supplied with an A01 cloverleaf cam. The BEST 1EE differs in pinning and cam - it is a 7-pin premium core cylinder with 1-1/4 inch effective length, furnished with a C229 cam and RP2 ring package. If the lock body needs a longer cylinder, the Corbin Russwin 1000 Grade 1 Series mortise cylinder is 1-1/2 inch with an A02 straight cam.
8) I need a mortise cylinder for a Schlage L9000 mortise lock - is the BEST 1EE the right part?
The BEST 1EE Series is built for compatible BEST mortise lock hardware and ships with a C229 cam. For Schlage L9000 mortise locks, the Corbin Russwin 1080 Grade 1 Series is the part specified for that application - a 1-1/2 inch large format interchangeable core mortise cylinder, 6-pin, with the A01 Schlage L cam.
9) I need a replacement cylinder for a key-in-lever lock, not a mortise lock - what should I order?
The BEST 1EE is a mortise cylinder and will not fit a key-in-lever chassis. For key-in-knob and key-in-lever work, the Kaba Ilco 1539 Series is a key-in-knob/lever universal cylinder, the 1579 Series is a knob and lever cylinder for Sargent, and the 1599 Series is a key-in-knob replacement cylinder. The Falcon A23161-05 G is a key in lever cylinder in the RU/T Series 6-pin G keyway, keyed different with two cut keys.
10) My building is keyed on Schlage C - can I match that with the BEST 1EE?
The BEST 1EE is ordered in BEST keyways WA, WB, WC, WD, WE, WG, WH, WK and WY, so it keys into a BEST system rather than a Schlage C system. For a Schlage C mortise cylinder, the Detex MC65 is a 1-1/8 inch 6-pin commercial grade mortise cylinder in the Schlage C keyway, and the Schlage 20-057-C is a full size interchangeable core in the C keyway.
11) What is a slabbed lost motion mortise cylinder actually for?
Lost motion means the cam has free travel before it engages the lock, so the key can turn past a point without forcing the mechanism. The slabbed body is the flat-sided housing used where a round body will not clear the lock case. On the 1EE it is the 7-pin, 1-5/32 inch diameter version, handed RH or LH.
12) What finishes does the BEST 1EE mortise cylinder come in?
Ten finishes, so you can match existing trim across a building: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 satin bronze oil-rubbed, 619 satin nickel, 622 matte black, 625 bright chrome, 626 satin chrome and 690 statuary dark bronze. The body itself is solid brass or bronze.
13) Can I use the BEST 1EE cylinder in a rim exit device instead of a mortise lock?
The 1EE is a mortise cylinder, though the ring selection does include a rim cylinder ring alongside 3E mortise, 6-pin mortise, 7-pin mortise and tapered cylinder rings. For a dedicated rim application, the Schlage 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam and the 20-022 is the same with a horizontal tailpiece cam; the Corbin Russwin 3070 is a 6-pin rim cylinder housing with a 1-7/8 inch tailpiece.
14) What is the difference between the BEST 1EE lost motion cylinder and a Medeco lazy motion rim cylinder?
Both use a free-play mechanism, but they serve different lock bodies. The BEST 1EE is a slabbed lost motion mortise cylinder with a 7-pin premium core. The Medeco 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1065244 is a 5-pin rim lazy motion cylinder with an Emtek tailpiece, and the 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts. Choose by the lock the cylinder threads into and by the tailpiece it needs.
15) Is there a simpler five-pin option instead of the 7-pin BEST 1EE?
Yes. The BEST 1EE carries a premium 7-pin core for key control and pick resistance. If five pins suit the opening, the Adams Rite 4036 is a Grade 1 mortise cylinder with five-pin security, and the Adams Rite 4026 is a five pin tumbler cylinder pull built for the 5017 wood door deadlock and deadlatch. Note that stepping to five pins changes the keying system the cylinder can join.
16) I need an interchangeable core cylinder rather than a keyed cylinder - what are my options?
The BEST 1EE ships as a mortise cylinder with a premium 7-pin core in one of nine keyways, ordered by keymark and marking number. If the facility standardizes on a full size interchangeable core so cores can be swapped without pulling the housing, the Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam, and the 20-057-C is a full size interchangeable core in the C keyway in 643E aged bronze.
17) Which cylinder should I order for an Emtek handleset or deadbolt?
The BEST 1EE is a mortise cylinder for compatible BEST mortise lock hardware, so it is not the part for Emtek trim. Emtek offers its own CY4 cylinder, sold each. Medeco also builds retrofits for that trim: the 1065140 is a 5-pin retrofit cylinder for the Arrow JL interconnected lock and the Emtek handleset and deadbolt outside cylinder, and the 1065244 is a 5-pin rim lazy motion cylinder with an Emtek tailpiece.
18) I am replacing a cylinder in a deadbolt - is the BEST 1EE mortise cylinder the wrong part?
For a deadbolt, look at cylinders built for that function. The Kaba Ilco 1549 Series is a key-in-deadbolt cylinder, and the 1539, 1579 and 1599 Series are also listed for deadbolt function. The BEST 1EE is a slabbed lost motion mortise cylinder intended for commercial mortise lock applications, ordered with handing and a choice of cam including a standard cam or an Adams Rite MS cam.
19) Is there installation documentation for the BEST E Series cylinders?
Yes, the BEST E Series Service Manual covers these cylinders and is available as a PDF. Since the 1EE is a replacement cylinder, you also want the install instructions for the mortise lock it is going into, because the cam and the lock case have to agree.
How fast can I get the BEST BES-1EE7E4-C4RP3626-PC 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 BES-1EE7E4-C4RP3626-PC come with a warranty?
Absolutely. The BEST BES-1EE7E4-C4RP3626-PC 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 BES-1EE7E4-C4RP3626-PC?
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 BES-1EE7E4-C4RP3626-PC 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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