Bonnet / Rear Lid / Spoiler Activators & Motors
- 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 - 1974 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Click 'Zoom in' for large parts diagram
Diagram ref no 32
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91151106700
The product you are viewing cross references to these numbers
- 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 - 1974 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Click 'Zoom in' for large parts diagram
Diagram ref no 32
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91151106700
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
Fits:
Porsche 911 1965-89
Porsche 911 (930) Turbo 1978-89
Porsche 964 1989-94
911 Coupe FRONT 2.0-2.4 08/69-07/73
911 FRONT 2.7-3.3 08/73-07/89
911 FRONT 2.0 01/63-07/69
911 REAR 2.0-3.3 01/63-07/89
964 REAR 3.6 07/89-07/90
This product supersedes Porsche's old part numbers:
- 90151107320
Diagram ref no 37
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90151107321
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
Fits:
Porsche 911 1965-89
Porsche 911 (930) Turbo 1978-89
Porsche 964 1989-94
911 Coupe FRONT 2.0-2.4 08/69-07/73
911 FRONT 2.7-3.3 08/73-07/89
911 FRONT 2.0 01/63-07/69
911 REAR 2.0-3.3 01/63-07/89
964 REAR 3.6 07/89-07/90
This product supersedes Porsche's old part numbers:
- 90151107320
Diagram ref no 37
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90151107321
The product you are viewing cross references to these numbers
Bonnet, Rear Lid & Spoiler Activators and Motors for Smooth, Reliable Operation
Bonnet, rear lid, and spoiler activators & motors are crucial components in modern vehicle electrical systems, enabling powered opening, controlled lifting, and automated aerodynamic function. These precision-engineered motors operate through the vehicle’s relay network to ensure seamless movement of front bonnets, rear luggage lids, and adjustable spoilers—components essential to both convenience and performance.
What Bonnet, Rear Lid & Spoiler Activators Do
These motors and activators are responsible for:
- Powering the opening or lifting of bonnets and rear lids
- Enabling automated spoiler deployment at speed for improved aerodynamics
- Providing controlled movement for lifting mechanisms
- Ensuring smooth integration with onboard electronics and safety switches
- Supporting everyday convenience features such as push-button access
Whether used for access or aerodynamic stability, these components must deliver consistent, dependable motion to keep the vehicle operating at its best.
Why These Motors & Activators Commonly Fail
Because they perform repeated mechanical and electrical
operations, bonnet and spoiler activators can experience wear over time.
Common
causes of failure include:
- Internal motor burnout from age or resistance build-up
- Damaged or corroded gears
- Moisture intrusion in rear compartments
- Electrical relay faults or short circuits
- Binding or seizure of lifting mechanisms
- Spoiler deployment systems overworking due to misalignment
Symptoms of failure may include intermittent operation, grinding noises, slow movement, spoiler non-deployment, or complete motor failure.
Why You Should Replace a Faulty Activator or Motor
A failing bonnet, rear lid, or spoiler motor can compromise both safety and vehicle function. Slow or unresponsive motors can prevent you accessing the luggage area, cause spoiler warning lights, or disrupt aerodynamic performance at speed.
Replacing these parts with high-grade, direct-fit
alternative components engineered to meet original performance standards
ensures:
- Restored smooth and reliable lifting action
- Improved electrical efficiency
- Safe, consistent spoiler deployment
- Quiet, precise operation
- Long-term durability under daily use
Design911 supplies performance-tested replacements designed to deliver the same reliability as vehicle-branded parts—without the premium price tag.