KSP 408EXT-LFIC-KIT LFIC Housi...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$273.00
$239.80
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KSP 408EXT-LFIC-KIT LFIC Housing Extension Kit for KSP 408 Housings with 1/2", 3/4", 1", and 2" Stackable Extensions

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Model: 408EXT-LFIC-KIT

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

$273.00
$239.80
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KSP 408EXT-LFIC-KIT LFIC Housing Extension Kit for KSP 408 Housings

The KSP 408EXT-LFIC-KIT is a purpose-built LFIC (Less Full Interchangeable Core) Housing Extension Kit designed specifically for KSP 408 Housings. This commercial-grade replacement parts kit provides the flexibility to accommodate varying door and hardware configurations by including four stackable extension sizes: 1/2", 3/4", 1", and 2". Each kit ships complete with a Stackable Extension, Drive Extension, and all required mounting screws, delivering a ready-to-install solution for professional installers and facilities maintenance teams.

Key Features

  • Multiple Extension Sizes Included: Kit contains 1/2", 3/4", 1", and 2" extension options to accommodate a wide range of door thicknesses and housing configurations.
  • Stackable Extension Design: Includes a dedicated Stackable Extension component allowing installers to combine sizes for precise depth customization on KSP 408 Housings.
  • Drive Extension Included: Comes with a Drive Extension to ensure proper LFIC core engagement and reliable cylinder actuation after housing depth adjustment.
  • Hardware-Complete Kit: All necessary screws are included in the kit, eliminating the need to source additional fasteners for a complete installation.
  • Purpose-Built Compatibility: Engineered specifically for use with KSP 408 Housings, ensuring precise fit and proper LFIC cylinder alignment.
  • Commercial-Grade IC Core Accessory: Classified as a commercial replacement part within the KSP Cylinder Parts & Accessories line, suitable for demanding institutional and commercial environments.

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: IC Core
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 408EXT-LFIC-KIT
  • Features: KSP Cylinder Parts & Accessories

Typical Applications

  • Commercial Office Buildings with KSP 408 Cylinder Housings
  • Educational Facilities Requiring LFIC Core Housing Depth Adjustment
  • Healthcare Institutions Maintaining or Upgrading KSP Cylinder Hardware
  • Government and Municipal Buildings with Standardized KSP Locking Systems
  • Industrial and Warehouse Facilities Using IC Core Access Control
  • Multi-Tenant Residential and Mixed-Use Properties with Commercial Hardware
  • Facilities Maintenance and Door Hardware Service Professionals

Why KSP 408EXT-LFIC-KIT?

KSP Cylinder Parts & Accessories are engineered to maintain the integrity and performance of KSP 408 Housing installations in commercial environments. The 408EXT-LFIC-KIT delivers a complete, hardware-inclusive solution with four distinct extension sizes, a Stackable Extension, and a Drive Extension, giving installers the components needed to properly configure LFIC housings for varied door conditions. Designed for professional use, this kit reflects KSP's commitment to providing precision-fit replacement components for demanding commercial applications.

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:
IC Core
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
408EXT-LFIC-KIT
Features:
KSP Cylinder Parts & Accessories

KSP 408EXT-LFIC-KIT – Frequently Asked Questions

1) What comes in the KSP 408EXT-LFIC-KIT extension kit?
The 408EXT-LFIC-KIT ships with four stackable extension sizes (1/2 inch, 3/4 inch, 1 inch and 2 inch), a Stackable Extension, a Drive Extension, and all the mounting screws needed. No separate fasteners to source.
2) Can I combine the extensions to hit a thickness in between the listed sizes?
Yes. The extensions are stackable, so 1/2, 3/4, 1 and 2 inch pieces can be combined to reach the depth your door and housing configuration needs rather than being limited to one size.
3) Can a Schlage 20-207 core be used in place of the KSP 408EXT-LFIC-KIT extension kit?
No, they do different jobs. The KSP 408EXT-LFIC-KIT is a replacement parts kit of stackable housing extensions for KSP 408 housings, supplied with 1/2 inch, 3/4 inch, 1 inch and 2 inch extensions, a drive extension and the mounting screws, so it changes the depth of the housing rather than controlling the key. The Schlage Commercial 20-207 is a sub-assembled FSIC core only in the S123 keyway, which is the keyed cylinder that drops into a housing. If your KSP 408 housing sits too deep or too shallow for the door, you need the extension kit; if you need the keyed element itself, you are shopping cores.
4) Why does an LFIC housing extension kit include a drive extension?
When you add depth to the housing, the core's drive has to reach further to turn the lock. The included Drive Extension keeps the LFIC core engaged and the cylinder actuating properly after the housing depth is changed. Skip it and the core seats but won't reliably throw the lock.
5) What part number do I order for KSP 408 housing extensions?
Order model 408EXT-LFIC-KIT from KSP. It's a single kit part number covering all four extension sizes, so there is nothing further to specify by size.
6) Our doors vary in thickness across the building - does a stock LFIC core handle that, or do I need the KSP extension kit?
A core does not adjust for door thickness. The Schlage Commercial 20-207 is a fixed sub-assembled FSIC core in the S123 keyway, a single depth regardless of the door. Depth is handled at the housing, which is what the KSP 408EXT-LFIC-KIT addresses for KSP 408 housings: four extension sizes of 1/2 inch, 3/4 inch, 1 inch and 2 inch that stack so one kit can be configured for several door conditions across a commercial facility, with the drive extension keeping core engagement correct after the depth change.
7) Is this KSP extension kit suitable for a commercial building or is it residential hardware?
It's classified commercial door hardware, part of the KSP Cylinder Parts and Accessories line, and is used in offices, schools, healthcare, government buildings and multi-tenant properties running KSP 408 housings.
How fast can I get the KSP 408EXT-LFIC-KIT 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 KSP 408EXT-LFIC-KIT come with a warranty?
Absolutely. The KSP 408EXT-LFIC-KIT 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 KSP 408EXT-LFIC-KIT?
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 KSP 408EXT-LFIC-KIT 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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