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Door internal lock latch. Porsche 911 1972-89 / 964 / 912 ❭ 91153105
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
This internal lock latch operates as the primary engaging mechanism for the door lock assembly, securing the door closed while allowing smooth and reliable opening when actuated.
Fits:
Porsche 911 2.7L-3.3L 08/1972 - 07/1989
Porsche 912
Porsche 964
Note: Uses >>1972 original M5x12 type countersunk mounting screws
Note: Not for cars with Central locking option
Diagram ref no 1
Over years of use, original door locks and latch mechanisms can wear, bind, or fail due to corrosion, contamination, or repeated mechanical stress - resulting in sticking doors, poor lock engagement, or difficulty opening/closing. Replacing the latch with a correctly engineered OE Match unit helps restore dependable door operation and solid lock feel.
The latch is designed for direct swap-in installation with the existing lock assembly, using original mounting points and linkage connections. It is ideal for maintenance, restoration projects, or rejuvenating a worn door locking system on classic Porsche 911 and 912 models.
The door internal lock latch engages the door striker when the door closes and holds it securely in place until the interior or exterior handle is actuated. It ensures that the door stays closed under driving loads and releases smoothly when unlocked.
Function:
• Provides secure engagement with the door striker
• Ensures smooth locking and unlocking action
• Maintains proper door closure, alignment, and feel
A worn, bent, or sticky door latch can cause doors to hang open, fail to latch reliably, or operate roughly. This can lead to poor door fitment, rattles, compromised safety, and frustration when opening or closing doors. Installing an OE Match internal lock latch restores secure engagement, consistent feel, and door confidence - crucial for both everyday use and classic car reliability.
When to replace:
• Door doesn’t latch consistently or closes loosely
• Stiff, sticky, or rough door handle operation
• Rattling or vibration at the door while driving
• Corroded or worn latch hardware
• During restoration or door lock servicing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91153105
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
with Chrome Handles

Inc: 2 X door locks, 1 X ignition lock, 1 X glove box lock 1 X bonnet opening handle and 3 matching keys.
Fits:
Porsche 911 1965-76
Porsche 911 1978-89
Porsche 911 Turbo 3.3L 1978-89
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91153890114
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97

Fits:
Porsche 911 1965-89
Porsche 964 1989-94
Porsche 993 1994-98
Click picture for large parts diagram.
Diagram ref no 35
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99353109103
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Included the lock barrels & keys
Price is for SET OF 2 left & right.

Fits:
Porsche 911 1965 - 71
Porsche 911 1972 - 86
Please note: the illuminated genuine key head will not fit these keys. You would have to order the original shape blank keys and cut them.
Click 'Zoom in' for large parts diagram.
Diagram ref no 15
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91153894209
The product you are viewing cross references to these numbers
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