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Satin-chrome mortise lever lock with mechanical pushbutton keypad, left-hand orientation

Simplex

Simplex 8148M-LH-26D Satin Chrome Mechanical Pushbutton Mortise Left Hand Lever Door Lock

SKU CH-ZWJK-T8YEM MPN 8148M-LH-26D

Mechanical pushbutton mortise lever lock with key override for LFIC cores, left-hand operation, satin chrome finish, 70 mm backset, fits doors 44 to 57 mm thick, three-hour fire rating

  • Backset distance2-3/4 in
  • Lock keyingKeyed Different
  • Surface finishSatin Chrome
  • Sold asBox
  • Mechanical pushbutton entry needs no batteries
  • Left-hand mortise lever fits 44–57 mm doors
  • 70 mm backset with 19 mm anti-friction latch
  • Accepts LFIC Medeco, Assa Abloy, Yale 5- or 6-pin cores
  • 3-hour UL/ULC fire rating on A-labelled doors

Product Identification

The Simplex 8148M-LH-26D is a heavy-duty mechanical pushbutton mortise lever lock finished in satin chrome. It provides keyless exterior access via a vandal-resistant keypad with solid metal pushbuttons and allows free egress from the interior. The lock operates without batteries and supports a single access code programmed at the keypad.

Handing and Core Compatibility

This unit is configured for left-hand doors measuring 44 to 57 mm thick and requires a standard 86 mortise preparation. It accepts LFIC Medeco, Assa Abloy or Yale cores in 5 or 6 pin lengths, which are sold separately. Buyers needing right-hand operation, a different backset or an integrated core should consider other models.

Decisive Specification

The lock features a 70 mm backset paired with a 19 mm two-piece anti-friction latch. This combination determines fit within the mortise pocket and alignment with the strike plate. Verify these dimensions against your door prep before ordering.

How it compares

Measured against everything we stock in Door Lock Sets & Deadbolts, at today’s prices. Recalculated every night.

Price $939.99
Pricier than about 94% of the 2,145 comparable items (median $55.99).

Specifications

Product
Brand nameSimplex
Model name8148M-LH-26D
Size & build
Surface finishSatin Chrome
Backset distance2-3/4 in
More details
Lock keyingKeyed Different

Questions about this item

How long will the mechanical pushbutton mechanism last under heavy daily traffic?

The lock is built with a cast front housing, unified trim plate and fixed ADA-compliant lever for heavy-duty commercial use.

Does the lock generate any noise or heat during continuous operation?

It is a fully mechanical pushbutton mortise lock with no electronics, batteries or motor, so it produces no audible noise or heat.

Which LFIC core must I already own for the key override to function?

The lock accepts Medeco, Assa Abloy or Yale large-format interchangeable cores in 5- or 6-pin lengths; the core is sold separately.

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