KSP 408EXT-SFIC-KIT SFIC Housi...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$273.00
$239.80
Image coming soon

KSP 408EXT-SFIC-KIT SFIC Housing Extension Kit for KSP 408 Housings with 1/2", 3/4", 1" and 2" Stackable Extension, Drive Extension and Screws

(No reviews yet) Write a Review

Model: 408EXT-SFIC-KIT

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

$273.00
$239.80
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

KSP 408EXT-SFIC-KIT SFIC Housing Extension Kit for KSP 408 Housings

The KSP 408EXT-SFIC-KIT is a purpose-built SFIC Housing Extension Kit designed specifically for use with KSP 408 Housings. This commercial-grade cylinder housing accessory kit provides the components needed to extend SFIC cylinder housings to the required depth, and includes four extension sizes — 1/2", 3/4", 1", and 2" — along with a stackable extension, drive extension, and all necessary screws. Engineered for professional door hardware applications, this kit ensures proper SFIC cylinder depth alignment across a variety of door thicknesses and configurations.

Key Features

  • Four Extension Sizes Included: Kit contains 1/2", 3/4", 1", and 2" extensions to accommodate a wide range of door thickness requirements and housing depth adjustments.
  • Stackable Extension: Included stackable extension allows components to be combined for custom depth configurations, providing maximum installation flexibility.
  • Drive Extension Included: Drive extension is included in the kit for complete, ready-to-install functionality without the need for additional components.
  • Hardware Included: Kit ships with all necessary mounting screws, ensuring a complete solution for field installation.
  • KSP 408 Housing Compatibility: Specifically engineered for KSP 408 Housings, ensuring precise fit and reliable SFIC cylinder performance in compatible locks.
  • Commercial-Grade Construction: Designed and rated for commercial door hardware applications, meeting the demands of high-use environments.
  • Cylinder Housing Accessory: Classified as a replacement part and cylinder housing component within the KSP Cylinder Parts & Accessories line for straightforward procurement and service.

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

Typical Applications

  • Commercial Office Buildings Requiring SFIC Cylinder Depth Adjustment
  • Educational Facilities with KSP 408 Housing Installations
  • Healthcare Institutions Servicing KSP Mechanical Lock Cylinders
  • Government and Municipal Buildings with Keying System Upgrades
  • Retail and Hospitality Establishments Retrofitting Existing Door Hardware
  • Industrial and Warehouse Facilities Maintaining Commercial Lock Systems
  • Multi-Tenant Residential and Mixed-Use Properties with Commercial-Grade Hardware

Why KSP 408EXT-SFIC-KIT?

The KSP 408EXT-SFIC-KIT delivers a comprehensive, ready-to-install solution for SFIC housing depth extension, purpose-matched to KSP 408 Housings for assured compatibility. By including four extension sizes — 1/2", 3/4", 1", and 2" — along with a stackable extension, drive extension, and screws in a single kit, KSP eliminates the need for multiple separate part orders and simplifies field service for commercial door hardware professionals.

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:
Cylinder Housing
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
408EXT-SFIC-KIT
Features:
KSP Cylinder Parts & Accessories

KSP 408EXT-SFIC-KIT – Frequently Asked Questions

1) What comes in the KSP 408EXT-SFIC-KIT extension kit?
The kit covers four extension sizes, 1/2 inch, 3/4 inch, 1 inch and 2 inch, plus a stackable extension, a drive extension, and the mounting screws. That means one part number instead of several separate orders when you are setting SFIC cylinder depth in the field.
2) Will the KSP 408EXT-SFIC-KIT fit housings other than the KSP 408?
No. The 408EXT-SFIC-KIT is built specifically for KSP 408 housings. If you are extending a different housing, it is not the right part, and nothing in the kit is offered as a universal fit.
3) My SFIC core sits too deep in a KSP 408 housing to turn the lock. Is this the fix?
That is the job this kit is for. It extends the housing to the required depth and includes a drive extension so the core's cam still reaches the lock mechanism after you add length. Both the housing spacers and the drive side are covered, so you are not chasing a second part number.
4) Does this kit include an SFIC core or a cylinder housing itself?
No core and no housing. The 408EXT-SFIC-KIT is a replacement parts kit of extensions, a drive extension and screws only. You supply the KSP 408 housing and your own small format interchangeable core, keyed to your existing system.
5) Will a KSP SFIC housing extension kit work on a large format IC cylinder?
No. The 408EXT-SFIC-KIT is built for small format interchangeable core housings, specifically the KSP 408. Large format IC openings take a different housing entirely, such as the Kaba Ilco S26506, a large format IC core convertible housing in the Schlage size with a mortise function. Confirm whether the opening is SFIC or LFIC before ordering extension components.
6) Can I combine the extensions to hit a depth that is not 1/2, 3/4, 1 or 2 inches?
Yes. The kit includes a stackable extension so components can be combined for custom depth configurations, which is how you land on an in-between depth for an odd door thickness or a deep prep.
7) I need a housing that takes an interchangeable core, not an extension kit. What else is there?
Two different things here. The KSP 408EXT-SFIC-KIT only extends an existing KSP 408 housing. If you need the housing itself, the Kaba Ilco R2800 Series is a small format IC core convertible housing, and the Kaba Ilco S26506 is a large format IC core convertible housing in a mortise function, Schlage size. Pick small format or large format to match the cores your facility already keys.
8) Do I need to buy separate extension lengths, or does one kit cover the range?
One 408EXT-SFIC-KIT covers the range. It carries four extension sizes - 1/2 inch, 3/4 inch, 1 inch and 2 inch - along with a stackable extension that lets pieces be combined for depths in between, plus the drive extension and screws, so a single order handles varying door thicknesses on KSP 408 housings. Buying a convertible housing such as the Kaba Ilco R2800 Series instead addresses core format rather than housing depth.
9) Is the KSP 408 extension kit suitable for commercial, high-traffic doors?
Yes, it is a commercial-grade cylinder housing accessory, listed for commercial rather than residential use. Typical placements are office buildings, schools, healthcare, government facilities, retail and hospitality, and multi-tenant residential running commercial hardware.
10) Do I need to order screws separately for the KSP 408 SFIC extension?
No. All the necessary mounting screws ship with the kit, so it is a complete field install once you have the housing and core on hand.
How fast can I get the KSP 408EXT-SFIC-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-SFIC-KIT come with a warranty?
Absolutely. The KSP 408EXT-SFIC-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-SFIC-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-SFIC-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.
!