Wosp
WOSPerformance is an international manufacturer producing high quality bespoke rotating electrics.
We supply a niche market demanding high quality products to suit Porsche classic and race cars, particularly robust, light weight, high torque starter motors and alternators.
World market leaders in bespoke charging and starting systems. By using the latest and most technically advanced platforms WOSP tailor each unit to the customer’s specific requirements or to overcome an inherit issue. Using only OE based units and parts these upgraded and indexable units offer numerous advantages over the items they are designed to replace.
Upgrade your classic vehicle’s charging system without compromising its period-correct appearance, with Wosp’s Dynator – a high-performance 6 or 12V alternator cleverly disguised as a traditional dynamo or generator.
Designed and manufactured in-house in the United Kingdom from billet, these units deliver approximately double the output of the original dynamo they replace, while offering greater efficiency and weighing just 60% (approx.) as much.
Fits:
Porsche 912 1965-68
Porsche 356 B 1.6L 1960-63
Porsche 356 C 1.6L 1964-65
Fitment Information:
The diameter of this unit is slightly larger than that of the original dynamo (90mm), meaning the cradle it mounts on will need to be machined to accommodate the increased size.
These internally regulated units are direct replacements for the original dynamo. You simply have to bypass your regulator box or replace it with one of our dummy bulkhead mounted regulator boxes to eliminate any wiring modifications.
-Specifications-
Voltage: 6V or 12V
Amperage: 50A
Polarity: Positive or Negative Earth (Please Select Below)
B+ Terminal Position: Fixed
Pulley: Uses Original Pulley
Build Standard: Manufactured to BSI ISO 9002
-Dimensions-
Total Length Excluding Rotor: 155mm
Total Length Including Rotor: 245mm
About WOSPerformance:
At WOSP we design & manufacture bespoke starting & charging systems in the UK & USA and distribute them via a dealer network. We have produced alternators, starter motors and dynators for over 40 years to the highest standards. Working with and supplying some of the industries top names such as Aston Martin, Cosworth, Dallara, Ginetta, Jaguar, Lamborghini, McLaren, Renault Sport and race series such as F3, GP3, Supercar lites Rally X and Indy lights. Albeit our roots are firmly in Motorsport we also cater for areas of the industry such as Aviation, Industrial, Marine, Plant, Agricultural, and Vintage/Classic/ Historic applications.A family-run company with a fully equipped in house CNC machine shop, we refuse to be beaten on service and quality, whilst pushing the boundaries of what is possible.
Widely regarded as the world leader WOSP offer a full range of starter motors designed to be high torque, reliable, lightweight and completely serviceable. Catering for well over 2000 different starter motor applications it is rare we don’t have the answer for what you require. Whether it is 6, 12 or 24 volt ranging between 1kW and 11kW we use different form factors to ensure easy fitment with no obstruction. All of our units are built to the highest standards using only O.E. parts and units.
Complementary to our starter motors we also produce a complete range of alternators varying in outputs, fitments, size and more. Whether it is a new high quality Lucas replacement or an upgraded lightweight CNC billet plug & play unit there’s usually multiple options. Additionally, growing in awareness our dynators which are alternators disguised as dynamos for the classic car market. Built to be the most authentic looking and reliable on the market they now produce over 200 different models.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
LMDPOR001
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Alternator 12v 90amp with upstand carrier.
Fits:
Porsche 912 - 1969
Wasp 200 Series, 90amp alternator.
Designed and manufactured from billet in house, these more conventional alternators in comparison to our 300 Series give you the choice of fitment options, range of outputs, terminal connections and units to suit the unique requirements of Lithium Ion batteries.
• Voltage: 12
• Polarity: Negative
• Amp: 90
• Billet
• Pully not supplied
• Connection - B+ / lamp
Upstand for VW fitment
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
LMA072
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)

Direct replacement for original unit
WOSP starter motor has 11 teeth as opposed to 9 teeth on original unit. This design is intentional.
Fits Cars with 901/915 Gearbox
Porsche 911 - 1965 to 1986
Porsche 912
Porsche 914
Kilowatts: 2.0 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.
91160410101
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 914 (1970-1976)
- Porsche 912E 4CYL 1976

Fits:
For cars with Tiptronic transmission (I249) and Manual transmission (I480/481)
Porsche 987.1 Boxster 2007-08
Porsche 987C.1 Cayman 2007-08
Porsche 997.1 Carrera 2007-09
Porsche 997.1 Turbo 2007-09
Porsche 997 GT3 2010-11
Plug type

Click 'Zoom in' for large parts diagram.
Diagram ref no 20
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99760302205
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 997 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche 997 TURBO 2007>>
- Porsche 997 GT3 2007>>
- Porsche 997 GT2 2007>>
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

Fits:
Porsche 964 1989-94
Porsche 993 1994-98
• Weight: 6.9kg
• Amp: 240
• Connections: B+ / Lamp
• Construction: Full Billet
• All units are produced to BSI ISO 9002 standards.
• All units have their own serial number for traceability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96460315601
The product you are viewing cross references to these numbers
- 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
This alternator fits the original fan housings.
Fits:
Porsche 911 up to 1973
For cars up to 1973 the alternator is a direct fit.
Replacing Porsche alternator:
90160311800 / 91160310652 / 91160311800 / 91160312000
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160311800
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)

Direct replacement for original unit
Fits:
Porsche 993 C2 / C4 / C2S / C4S - 1994 - 1998 Manual Only
Porsche 987 Boxster Gen 2 - 2009 to 2012
Porsche 987 Boxster S Gen 2 - 2009 to 2012
Porsche 987 Cayman Gen 2 - 2009 to 2012
Porsche 987 Cayman S Gen 2 - 2009 to 2012
Porsche 997 Carrera / Carrera 4 - 2009 to 2012
Porsche 997 Carrera S / Carrera 4S - 2009 to 2012
Porsche 997 turbo Gen 2 - 2010 to 2013
Kilowatts: 1.80 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.
9A160410300
The product you are viewing cross references to these numbers
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche 997 MKII Carrera C2 3.6L 2009>>
- Porsche 997 MKII Carrera C4 3.6L 2009>>
- Porsche 997 MKII Carrera C2S 3.8L 2009>>
- Porsche 997 MKII Carrera C4S 3.8L 2009>>
- Porsche 997 MKII GT3 2010>>
- Porsche 997 MKII Turbo 2009>>
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12

Direct replacement for original unit
Fits:
Porsche 356 - 6v
Wosp 'Super-Duty' 1.4kw starter motor
Kilowatts: 1.40 kW
Voltage: 6 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.
61660410100
The product you are viewing cross references to these numbers
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Direct replacement for original unit
Fits:
Porsche 981 Boxster / Boxster S
Porsche 981 Cayman / Cayman S
Porsche 991 Carrera 2 / Carrera 4 3.4ltr
Porsche 991 Carrera 2S/ Carrera 4S 3.8ltr
Porsche 991 turbo / turbo S
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.
9A160410900
The product you are viewing cross references to these numbers
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster S 981 3.4L 2012-16
- Porsche 991 Carrera C2 3.4L (350Bhp)
- Porsche 991 Carrera C2S 3.8L (400Bhp)
- Porsche 991 Carrera C4 3.4L (350Bhp)
- Porsche 991 Carrera C4S 3.8L (400Bhp)
- Porsche 991 Turbo 3.8L (520bhp)
- Porsche 991 Turbo S 3.8L (560Bhp)
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S 3.4L 981 2013-16

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 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

Direct replacement for original unit
Fits:
Porsche 958 Cayenne Diesel V6 3.0ltr - 2010 to 2014
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.
94860421402
The product you are viewing cross references to these numbers
- Porsche Cayenne V6 3.0L Diesel 245HP

Direct replacement for original unit
Please check build date
94860420600W has a 68mm locating spigot diameter
94860420601W has a 60mm locating spigot diameter
Fits:
Porsche 957 Cayenne S / GTS 4.8ltr - 2007 to 2010
Porsche 957 Cayenne turbo / turbo S 4.8ltr - 2007 to 2010
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.
9486042060
The product you are viewing cross references to these numbers
- Porsche Cayenne S/GTS 4.8L 2007>>
- Porsche Cayenne Turbo / Turbo S 4.8L 2007>>

Direct replacement for original unit
Fits:
Porsche 955 Cayenne S 4.5ltr - 2003 to 2006
Porsche 955 Cayenne turbo / turbo S 4.5ltr - 2003-2006
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.
94860410600
The product you are viewing cross references to these numbers
- Porsche Cayenne S 4.5L V8 2003>>
- Porsche Cayenne Turbo 4.5L 2003>>
- Porsche Cayenne Turbo S 4.5L 2006>>

Direct replacement for original unit
Fits:
Porsche 964 C2 / C4 - 1989 Only
Porsche 964 C2 Tiptronic - 1989 Only
Porsche 993 C2 / C4 / C2S / C4S - Tiptronic 1994 to 1998
Kilowatts: 2.00 kW
Voltage: 12 V
Original Pinion is 9 tooth - WOSP is 11 with an offset plate. This is done for increased torque, smoother / faster cranking, and durability.
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.
91160410201
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97

Direct replacement for original unit
Fits
Porsche 928 - All
Kilowatts: 1.4 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.
92860410306
The product you are viewing cross references to these numbers
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95

Direct replacement for original unit
WOSP starter motor has 11 teeth as opposed to 9 teeth on original unit. This design is intentional.
Fits Cars with 901/915 Gearbox
Porsche 911 - 1965 to 1986
Porsche 912
Porsche 914
Kilowatts: 1.4 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.
91160410101
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 914 (1970-1976)
- Porsche 912E 4CYL 1976