Schlage L583-045 Locking Catch...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$38.90
Schlage L583-045 Locking Catch Replacement Part for L Series Mortise Locks

Schlage L583-045 Locking Catch Replacement Part for L Series Mortise Locks

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Model: L583-045

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

$38.90
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Schlage L583-045 Locking Catch Replacement Part for L Series Mortise Locks

The Schlage L583-045 is a genuine OEM locking catch designed as a direct replacement component for Schlage L Series mortise locks (excluding L9080EL/EU models). This commercial-grade replacement part ensures continued reliable latch operation in high-demand environments where dependable door security is essential. Engineered to Schlage's precise manufacturing standards, this locking catch integrates seamlessly with compatible L Series hardware for a straightforward, accurate fit.

Key Features

  • Genuine Schlage OEM Component: Manufactured to Schlage's exact specifications, ensuring a precise fit and reliable performance in compatible L Series mortise lock assemblies.
  • Broad L Series Compatibility: Designed for use with the full Schlage L Series mortise lock lineup, with the exception of L9080EL and L9080EU models, offering wide-ranging replacement applicability.
  • Commercial-Grade Construction: Built to meet the rigorous demands of commercial door hardware applications where consistent latch engagement and long-term durability are required.
  • Direct Drop-In Replacement: Functions as a drop-in replacement part, simplifying service and maintenance of existing L Series installations without the need for door or frame modification.
  • Locking Catch Function: Provides the critical locking catch mechanism integral to the L Series mortise lock's latching and security operation, maintaining door security integrity.

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: Latches
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: L583-045
  • Features: Schlage Parts

Typical Applications

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

Why Schlage L583-045?

Schlage L Series replacement parts like the L583-045 are manufactured to the same exacting standards as the original components, ensuring that repaired mortise locks perform as intended in demanding commercial environments. Choosing a genuine Schlage part preserves the integrity of the installed L Series hardware and minimizes service disruption in high-traffic facilities.

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:
Latches
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
L583-045
Features:
Schlage Parts

Schlage L583-045 – Frequently Asked Questions

1) Will the Schlage L583-045 locking catch work in any L Series mortise lock?
The L583-045 locking catch fits the Schlage L Series mortise lock line with one exception: it is not for the L9080EL or L9080EU electrified models. If the lock body in your door is either of those, this catch is the wrong part.
2) My door has a drive-in tubular latch, not a mortise lock - what should I order instead of the Schlage L583-045?
The L583-045 only serves Schlage L Series mortise locks, so it will not help a bored door prepped for a tubular latch. For a drive-in latch, the Deltana DLE23875 is an adjustable drive-in latch with an Entry function for doors 1-3/8 inch to 2 inch thick, and the Deltana DLP23875 covers Passage/Privacy function with an adjustable 2-3/8 inch or 2-3/4 inch backset over the same door thickness range.
3) Can a Kwikset RCAL adjustable latch be used in place of a Schlage L583-045 locking catch?
No. The Schlage L583-045 is a locking catch component that goes inside a Schlage L Series mortise lock body as a genuine OEM replacement part, not a standalone latch. The Kwikset 83518 RCAL Adjustable Square Drive UL 3 hour Latch is a complete latch unit for bored cylindrical locksets, so it has no place inside a mortise case. To repair an L Series mortise lock, the L583-045 is the part that fits the assembly.
4) Do I have to remove the door or re-mortise to install the L583-045?
No door or frame modification is involved. The L583-045 is a drop-in service part for the L Series lock case, so the work is pulling the lock body and swapping the catch, not cutting new prep.
5) Is this a genuine Schlage part or an aftermarket copy?
It is a genuine Schlage OEM locking catch, built to Schlage's own specifications for the L Series mortise lock. That matters on a service call because an off-spec internal catch is what causes intermittent latch engagement after a repair.
6) What does the locking catch actually do inside a mortise lock?
The catch is the internal component that holds the latch in its locked state, so it is part of how the lock case keeps the door secured rather than free-swinging. When it wears, the lock stops holding reliably even though the lever and cylinder still feel normal, which is why it gets replaced as a standalone part.
7) Can I use a drive-in latch like the Deltana DLE23875 instead of replacing this Schlage catch?
No. The L583-045 is an internal part of a mortise lock case, while the Deltana DLE23875 is a complete drive-in entry latch for a bored (cylindrical) door prep with a 1-3/8 inch to 2 inch door thickness range. They serve different door preps entirely, so a mortise lock repair needs the Schlage catch, not a tubular latch.
8) Is there an equivalent locking catch for a pocket door privacy latch?
No - the Schlage L583-045 is an internal locking catch for L Series mortise lock cases and is not a pocket door part. For pocket door service, the Emtek 83228 is a faceplate and screws set with square corners for a tubular pocket door privacy latch, a Privacy/Bed/Bath function part. The two address entirely different hardware families.
9) What is the difference between the Schlage L583-045 and an Emtek LC9-DBLTCH motorized deadbolt latch?
The Schlage L583-045 is a mechanical OEM locking catch that replaces a worn component inside a Schlage L Series mortise lock, with no electrical function of its own. The Emtek LC9-DBLTCH is an EMPowered series motorized deadbolt latch, a complete powered latch assembly. One is a service part for an existing mortise case; the other is the latch itself for an electrified deadbolt application.
10) I need a fire-rated latch for a 2-3/8 inch backset bored door - does the Schlage L583-045 cover that?
No. The L583-045 is a commercial replacement locking catch for Schlage L Series mortise locks and is not a bored-door latch. For a square corner plain latch at 2-3/8 inch backset, the Kwikset 84290 Square Corner Plainlatch is a UL part, and the Kwikset 83521 RCAL Plain Latch is a UL 3 hour latch listed for BBL, KNL, CNL and PLL locksets.
11) Is the L583-045 rated for high traffic commercial openings like schools and hospitals?
It is a commercial-grade component, and the intended settings are commercial offices, schools, healthcare, government buildings, retail, industrial facilities and multi-tenant residential. It is not a residential-duty part.
How fast can I get the Schlage L583-045 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 Schlage L583-045 come with a warranty?
Absolutely. The Schlage L583-045 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 Schlage L583-045?
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 Schlage L583-045 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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