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9A783721505/1
Product Information
Product Information

Left Hand Drive (LHD) Front Drivers Door Lock Mechanism

This LHD front drivers door lock mechanism is a direct replacement part designed to restore secure locking and proper door operation for the left-hand drive, front passenger door on a wide range of Porsche models. It is engineered to meet or exceed OEM specifications for fitment, durability and performance.

Please check part number on the original lock mechanism


Fits:

  • Porsche 971.1 – LHD Drivers Side with Option Codes L0L, GZ0, 4F2, 4I6 04.07.2016>>
  • Porsche 971.2 – LHD Drivers Side with Option Codes GZ0, L0L, 4F2,4I6,8QK
  • Porsche 976 Panamera – LHD Drivers Side
  • Porsche 981 Boxster – LHD Drivers Side with Option Codes 098, -072, -533, IY2
  • Porsche 981 Cayman – LHD Drivers Side with Option Codes 098, -072, -533, IY2
  • Porsche 981 Cayman GT4 – LHD Drivers Side with option Code 098, 534
  • Porsche 981 Boxster Spyder – LHD Drivers Side with Option Code 098, 534
  • Porsche 718 Boxster – LHD Drivers Side
  • Porsche 718 Cayman – LHD Drivers Side
  • Porsche 718 Boxster Spyder – LHD with Option Codes 534, 098, 450, -094
  • Porsche 718 Cayman GT4 – LHD Left
  • Porsche 992.1 – LHD Drivers Side with Option Codes 098, IY2, 2015>>
  • Porsche 991.2 – LHD Drivers Side with Option Codes 098, -072, -533, -250 (for Manual gearbox)
  • Porsche 991 GT3 – LHD Drivers Side 2015>>
  • Porsche 992 GT3 / GT3 RS / ST – LHD Drivers Side
  • Porsche 9YA Cayenne - LHD Drivers Side with Option Codes L0L, GZ0,4F2, 4I6
  • Porsche 95B.1 Macan – LHD Drivers Side 20.06.2016>>
  • Porsche 95B.2 – LHD Drivers Side with Option Code L0L

Diagram Ref No 14

This mechanism works with the vehicle’s central locking system and door latch hardware to ensure secure door closure, correct electrical unlocking and reliable function every time you enter or exit the vehicle.

What the Front Drivers Door Lock Mechanism Does

The door lock mechanism is an essential component of your Porsche’s door security and access system. It performs key functions such as:

  • Securing the front  drivers door when locked via key fob, interior switch or automatic lock
  • Engaging and releasing the latch during door opening and closing
  • Communicating with central locking to synchronise all vehicle doors
  • Ensuring proper alignment between the door and striker plate
  • Maintaining weather and vibration-resistant closure

In modern Porsches, this mechanism often includes electronic actuation combined with mechanical latch elements, ensuring responsive and quiet operation.

Why Door Lock Mechanisms Fail

Door lock mechanisms can wear out or malfunction due to both mechanical and electrical factors:

  • Actuator motor fatigue from frequent use
  • Internal gear wear and plastic component degradation
  • Corrosion or water ingress over time
  • Misalignment or sagging from hinge wear
  • Wiring or connector failure in central locking circuits
  • Physical stress from rough operation or impact

Common signs of a failing door lock mechanism include:

  • Door not locking or unlocking reliably with key fob or interior switch
  • Door stays locked/unlocked intermittently
  • Unusual clicking, grinding or buzzing noises when locking/unlocking
  • Alarm triggering without cause
  • Door not latching securely when shut

Because this mechanism works closely with the vehicle’s central locking and alarm systems, failures can impact security, convenience and peace of mind.

When You Should Replace It

You should consider replacing the front drivers door lock mechanism if:

  • You experience intermittent or failed locking/unlocking
  • The door won’t latch securely or opens unexpectedly
  • The central locking system shows fault codes related to door circuits
  • Audible actuator noises occur without door action
  • You are repairing a vehicle that has been water-damaged or has corroded lock parts

Prompt replacement restores proper security, consistent lock performance and seamless integration with your Porsche’s locking and alarm systems.

 Key Benefits at a Glance

  • OEM-equivalent replacement door lock mechanism
  • Restores secure front drivers door locking
  • Compatible with central locking systems
  • Eliminates intermittent or failed lock action
  • Suitable for multiple Porsche models (Macan, Panamera, 718, 981, 991, Cayenne)
  • Improves convenience, security and reliability       



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9A783721505
8J1837015E

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