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Cabrio
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12

This is a pair of complete replacement gears in plastic incl. central pinion in plastic (no need to retain factory metal pinion from the old broken gear) for both the LEFT and RIGHT convertible top drive mechanism transmissions.
The angle of the teeth are from left to right on the LEFT gear and right to left on the RIGHT gear.
Fits:
Porsche 986 Boxster 2000>>
Porsche 987 Boxster
Click 'Zoom in' for large parts diagram.
Fits to no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9875611800X
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08

These are replacement convertible roof top drive gears incl. central pinon in Heavy duty Brass.
Available for both the LEFT or RIGHT Convertible top drive mechanism transmissions. The angle of the teeth are from left to right on the LEFT gear and right to left on the RIGHT gear.
Fits:
Porsche 986 Boxster from 2000>>
Porsche 987 Boxster
HD Metal Replacement Gear for Left or Right Side Top Transmission Contains:
(1) Brass Gear
(1) Grease packet
• Brass Replacement Gear for Plastic Gear on the Left or Right Side Top Transmission
• Manufactured to match plastic OE gear dimensions for proper fit and operation
• High-strength brass material outlasts fragile plastic
• Withstands electric motor cycling and heat for longer lifespan
• Guaranteed fitment
• Manufactured to match plastic OE convertible top transmission gear dimensions for proper fit and operation
• Withstands motor housing heat and cycling for long lifespan
• 24 Month Unlimited Mileage Warranty
Download the detailed installation instructions
Click 'Zoom in' for large parts diagram.
Fits to no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9875611
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
Fits:
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Click 'Zoom in' for large parts diagram.
Diagram ref no 23
Related reference numbers
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98756192500
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
Fits:
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Click 'Zoom in' for large parts diagram.
Diagram ref no 17
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98756177301
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12

Fits:
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98756191500
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12

Fits:
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98756191500
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
Sold Each.
x2 Required Per Car.
Fits Left And Right.
Fits:
Porsche 987 Boxster / Boxster S MKI 2005>>2008
Porsche 987 Boxster / Boxster S MKII 2009>>2012
Diagram Ref No 17
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98756142100
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
Fits:
Porsche 987.1 Boxster 2007-08 with chassis no:
F 98-7T700 251>>
F 98-7T720 276>>
F 98-7T710 141>>
F 98-7T730 069>>
Porsche 987.2 Boxster 2009-12
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
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98756110700
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
Fits:
Porsche 987 Boxster 2005-08
Porsche 987 Boxster 2009-12
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
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98756132702
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
Fits:
Porsche 987 Boxster MKI & MKII 2005>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 34
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98756144
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12

Fits:
Porsche 987 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Click 'Zoom in' for large parts diagram.
Diagram ref no 16
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98756157
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12

Fits:
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Click 'Zoom in' for large parts diagram.
Diagram ref no 10
Related reference numbers
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9875615
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12

Fits:
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Porsche 997.2 Speedster 2011>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 9
Related reference numbers
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98756140
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08

Fits:
Porsche Boxster 986 all
Porsche 987 Boxster 2005-08 Chassis no F >>986U7 02822 and F >>986U7 22145
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
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9875611
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
Convertible Top Motor Plastic Drive Gears
Restore the smooth and reliable operation of your Porsche
convertible roof with these Factory Style Convertible Top Motor
Plastic Drive Gears.
Manufactured to OE specifications, these precision-moulded replacement gears
are designed to restore the performance of the original convertible roof drive
motor without the expense of replacing the complete motor assembly.
Fits:
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
Fits to no 1
You will need to retain the original metal central pinion from the broken factory plastic gear being replaced.
The angle of the teeth are from left to right on the LEFT gear and right to left on the RIGHT gear.
The plastic drive gears are a sacrificial component within the roof drive mechanism, transmitting power from the electric motor to the roof transmission. Over years of operation, the original gears can wear, crack or strip their teeth, causing the roof to operate unevenly or stop functioning altogether. Replacing these gears restores smooth power transfer, helping the roof mechanism operate quietly and efficiently once again.
Ideal for preventative maintenance or repairing a faulty roof motor, these OE Match replacement gears provide factory-quality fitment, dependable durability and excellent value.
What Do the Convertible Top Motor Drive Gears Do?
The plastic drive gears transfer rotational power from the electric roof motor to the convertible roof transmission mechanism.
Their primary functions include:
- Transmitting drive from the roof motor.
- Operating the convertible roof mechanism.
- Ensuring smooth and synchronised roof movement.
- Reducing shock loads within the drive system.
- Helping protect more expensive drivetrain components.
- Supporting reliable opening and closing of the roof.
- Maintaining consistent roof motor performance.
As sacrificial components, the gears are designed to wear before more costly components suffer damage.
Why Replace the Convertible Top Motor Drive Gears?
The roof motor gears are subjected to repeated loading every time the convertible roof is operated.
Common reasons for replacement include:
- Worn gear teeth.
- Cracked plastic gears.
- Stripped drive teeth.
- Roof motor slipping.
- Intermittent roof operation.
- Roof motor running without moving the roof.
- Preventative maintenance.
- Roof refurbishment or motor overhaul.
Replacing worn gears restores the efficiency of the roof motor and can often eliminate the need to replace the complete motor assembly.
Symptoms of Worn or Damaged Roof Motor Gears
Common warning signs include:
- Convertible roof stops during operation.
- Roof motor can be heard running without movement.
- Clicking or grinding noises from the motor.
- Uneven roof operation.
- Roof opens or closes slowly.
- Roof fails to complete its cycle.
- Jerky roof movement.
- Visible damage to the original plastic gears during inspection.
Replacing worn gears promptly can help prevent unnecessary strain on the roof motor and transmission assemblies.
Benefits
- Restores reliable convertible roof operation.
- Eliminates worn or stripped drive gears.
- Helps avoid replacing the complete roof motor.
- Smooth, quiet power transmission.
- Factory-quality fitment.
- Long-lasting, wear-resistant construction.
- Cost-effective repair solution.
- Excellent value OE Match replacement.
Installation Recommendations
For the best results, inspect the complete roof drive system
during installation, including:
- Convertible roof drive motor.
- Roof transmission gearboxes.
- Flexible drive cables.
- Roof linkages.
- Pivot points.
- Microswitches.
- Roof control module.
- Roof mounting hardware.
Clean old grease from the gearbox housing and apply a high-quality lubricant suitable for plastic gears during assembly. After installation, ensure the roof mechanism is correctly synchronised and fully tested through several complete operating cycles.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9875611
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
- Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
- Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
- Porsche 970.2 Panamera Turbo V8 Executive 2014-16

Fits:
Porsche 987.1 Boxster - 2005 to 2008
Porsche 987.2 Boxster - 2009 to 2012
Porsche 970.1 / 970.2 Panamera turbo - 2009 to 2016
Related reference numbers
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99991923901
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Maintain the luxury and performance of your convertible with Cabrio roof components from Design911. Our range includes complete soft tops, motors, hydraulic lines, seals, cables, and rear windows for Porsche and other European models.
Each part is designed to restore smooth operation, watertight sealing, and factory fit — ensuring your convertible performs as beautifully as it looks.
What These Products Do
Cabrio roof systems:
- Enable
automatic or manual roof operation for open-air driving.
- Provide weather and noise protection when closed.
- Provide weather and noise protection when closed.
- Preserve the vehicle’s original design lines and interior comfort.
Reasons for Failure
- Hydraulic
or electric motor wear from repeated use.
- Leaking
seals or cracked rear windows.
- Faded
or torn fabric from UV and weather exposure.
- Aging mechanical components causing slow or uneven operation.
Why Replace
Restore
watertight performance and quiet operation.
Improve
appearance and resale value.
Prevent
water ingress and electrical damage.