Starter Motors
Direct replacement for original unit
Fits:
Porsche 986 Boxster / Boxster S
Porsche 987 Gen1 Boxster / Boxster S
Porsche 987 Gen1 Cayman/ Cayman S
Porsche 996 Carrera 2 / Carrera 4 / Carrera 4S
Porsche 997 Gen1 Carrera / Carrera S
Porsche 997 Gen1 Carrera 4 / Carrera 4S
Kilowatts: 2.00 kW
Voltage: 12 V
WOSP high torque, lightweight, gear reduction starter motors are manufactured in the UK. Unlike alternatives in the market place these are built using only 100% OE parts and units, therefore can't be rivalled on quality.
In most cases WOSP starters are designed with an indexable 360 degree mounting plate meaning no obstruction should get in your way when installing.
The main advantages over the original starter is the durability along with a weight and space saving. The improved performance means they also reduce loads on the vehicle's battery and electrical system.
Direct replacements to the original item, plug & play / fit & forget.
All units come with instillation instructions and a 12 month warranty.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660410301
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
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
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12 Month Warranty
Worldwide Delivery
The starter motor is a crucial component in the starting system of internal combustion engines. Its primary function is to initiate the engine's operation by turning the flywheel, which in turn starts the engine's internal combustion process. In Porsche vehicles, the starter motor is designed to handle the specific demands of high-performance engines, ensuring reliable and efficient engine starts.
Sold as a brand-new, no-core-required replacement, OE Match brand made to match original equipment manufacturers standards. Power output: Approximately 1.7 kW and Voltage: 12V
Fits:
Porsche 996 3.4L-3.6L 09/1997-08/2005
Porsche 997 3.6L-3.8L 07/2004>>
Porsche 986 Boxster 2.5L-3.2L 09/1996-12/2004
Porsche 987 Boxster 2.7L-3.4L 11/2004>>
Porsche Carrera GT 5.7L 07/2003>>
Porsche 987C Cayman 2.7L-3.4L 11/2005>>
Starters, as wear-and-tear items, can present various failure symptoms:
- Slow Cranking, one of the most common indicators—when the engine turns over sluggishly
- Clicking Noises: A rapid clicking sound suggests the solenoid engages, but the starter motor isn't turning — often caused by worn brushes or internal failure
- No Crank / No Reaction: Turning the key results in silence or only one click — could indicate complete starter failure or an issue in the related circuit
- Intermittent Start Behaviour: The starter works sometimes but not always — points to degrading internal components or connection issues
Recommendations
- Regular Maintenance: Periodically inspect the starter motor and associated components to ensure proper functioning.
- Address Issues Promptly: If starting issues arise, diagnose and address them promptly to prevent further damage.
- Professional Installation: Consider professional installation to ensure the starter motor is correctly fitted and aligned.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660410300
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
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Carrera GT
Shop Securely
12 Month Warranty
Worldwide Delivery
.jpg?width=197&height=148 "Starter motor. Porsche 996 / 997.1 / 986 - 99660410300, 0986022470, 98660410400, 99660410400, 99660410301, 996604103AX, 996604103BX, 986604104X, 996604104X, 996604103X, 986604104, 99660410302")
Reconditioned Starter motor 12V 1.7kw
Please note:
Fits:
Porsche 996 3.4L-3.6L 09/1997-08/2005
Porsche 997 3.6L-3.8L 07/2004>>
Porsche 986 Boxster 2.5L-3.2L 09/1996-12/2004
Porsche 987 Boxster 2.7L-3.4L 11/2004>>
Porsche Carrera GT 5.7L 07/2003>>
Porsche 987C Cayman 2.7L-3.4L 11/2005>>
- The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
- Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
- Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
- All surcharges and exchanges are subject to our terms and conditions.
PLEASE NOTE:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660410300
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
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 986 Boxster - 1997 to 2004
Porsche 987.1 Boxster - 2005 to 2008
Porsche 987.1 Cayman - 2005 to 2008
Porsche 996 - 1997 to 2005
Porsche 997.1 - 2005 to 2008
Porsche 991.1 - 2012 to 2016
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A700815900
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
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Shop Securely
12 Month Warranty
Worldwide Delivery
Starter Motors – Reliable Engine Starting Power for Porsche Vehicles
Starter motors are essential components that provide the torque needed to start your Porsche’s engine. When you turn the key or press the start button, the starter motor engages the flywheel to crank the engine and initiate combustion. A reliable starter ensures smooth, instant starts every time — whether your Porsche is cold, hot, or under performance load.
At Design911, we stock a wide range of genuine and high-quality starter motors for Porsche models including, amongst others the 911, Boxster, Cayman, Cayenne, Macan, and Panamera. Each unit is engineered to meet the precise power and durability standards required by Porsche’s high-performance engines, ensuring long-term reliability and optimal starting performance.
What Do Starter Motors Do?
Starter motors convert electrical energy from the battery
into mechanical energy to crank the engine. Their key functions include:
- Engaging
the engine flywheel to initiate combustion.
- Delivering
consistent cranking power under all temperature conditions.
- Supporting
quick, smooth starts without hesitation.
- Ensuring reliable operation during repeated starts in traffic or performance use.
A high-quality starter motor ensures dependable ignition response and prevents starting delays, especially in performance-tuned or older Porsche models.
Why Do Starter Motors Fail?
Starter motors operate under intense electrical and
mechanical load, which can lead to wear over time. Common causes of failure
include:
- Worn
brushes or bearings leading to slow or intermittent operation.
- Electrical
faults such as bad solenoids or worn armatures.
- Heat
and vibration degrading internal components.
- Corroded
terminals or poor grounding reducing current flow.
- Age-related mechanical fatigue causing engagement failure.
Typical symptoms include clicking sounds when starting, slow cranking, complete no-start condition, or intermittent starting performance.
Why Replace a Failing Starter Motor?
A worn or failing starter can leave your Porsche unable to start or damage other electrical components. Replacing it ensures reliable ignition performance, consistent power delivery, and peace of mind.
Benefits of replacement include:
- Instant, reliable engine starting.
- Smooth and quiet operation.
- Reduced electrical strain on the battery and alternator.
- Manufacturer-quality performance and long-term durability.
All starter motors in our range feature precision-wound coils, high-strength gears, and heat-resistant housings for dependable operation and extended service life in demanding Porsche applications.
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