Please wait… 
Please wait while we process your order,
do not press the back button…
do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Category Filter
Air filter housing for auxiliary air injection. Porsche 911 74-83 - 93011312001
93011312001
Vehicle Group
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Information
Air filter housing for the auxiliary air injection.
Fits:
Porsche 911 Turbo 1975-89
Porsche 964 Turbo 1991-94
Click 'Zoom in' for large parts diagram.
Diagram ref no 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93011312001
The product you are viewing cross references to these numbers
Fits:
Porsche 911 Turbo 1975-89
Porsche 964 Turbo 1991-94
Click 'Zoom in' for large parts diagram.
Diagram ref no 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93011312001
93011312001
The product you are viewing cross references to these numbers
Price: €239.61
Orderable
Related products
Vehicle Group
- 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 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
Information
Air pump
This Porsche Genuine OE Secondary Air Pump is an original factory emissions-control component designed for Porsche 986 Boxster and Porsche 911 (996) models. This pump is part of the Secondary Air Injection (SAI) system, which works with the engine management and catalytic converters to reduce exhaust emissions during cold engine start-up.
Fits:
Porsche 986 Boxster / Boxster S 2000 - 2004
Porsche 996 C2 / C4 / C4S 2000 - 2005
Porsche 996 Turbo 2001 - 2005
Diagram ref no 1
This part supersedes earlier Porsche part numbers: 99660510400, 99660510401.
The secondary air pump injects fresh air into the exhaust system immediately after a cold start. The additional oxygen helps burn unburned hydrocarbons in the exhaust gases, allowing the catalytic converters to reach their operating temperature more quickly and significantly reducing harmful emissions.
The pump operates automatically under control of the engine control unit (ECU) and works together with air valves and sensors to maintain efficient emissions performance.
Functions & Technical Role
• Secondary air injection: Pumps fresh air into the exhaust stream during cold start
• Emission reduction: Helps oxidize unburned fuel in exhaust gases
• Catalytic converter warm-up: Improves catalyst efficiency during engine warm-up
• ECU-controlled operation: Integrates with engine management and emission sensors
• OE reliability: Manufactured to Porsche specifications for correct airflow and durability
Fitment / Position on Car
• Fitting position: Engine compartment / emissions system
• Location: Installed within the secondary air injection system, connected to the exhaust air passages
• System: Exhaust emissions control system
Secondary air pumps operate during every cold start and are exposed to heat, moisture, and frequent operation cycles. Over time, internal components may wear or fail, which can cause:
• Check engine light related to the secondary air system
• Increased cold-start emissions
• Rough idle or unusual pump noise
• Failure during emissions testing
Replacing a faulty pump with a genuine Porsche OE unit restores proper emissions system performance and ensures the vehicle meets factory operating standards.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660510404
The product you are viewing cross references to these numbers
This Porsche Genuine OE Secondary Air Pump is an original factory emissions-control component designed for Porsche 986 Boxster and Porsche 911 (996) models. This pump is part of the Secondary Air Injection (SAI) system, which works with the engine management and catalytic converters to reduce exhaust emissions during cold engine start-up.
Fits:
Porsche 986 Boxster / Boxster S 2000 - 2004
Porsche 996 C2 / C4 / C4S 2000 - 2005
Porsche 996 Turbo 2001 - 2005
Diagram ref no 1
This part supersedes earlier Porsche part numbers: 99660510400, 99660510401.
The secondary air pump injects fresh air into the exhaust system immediately after a cold start. The additional oxygen helps burn unburned hydrocarbons in the exhaust gases, allowing the catalytic converters to reach their operating temperature more quickly and significantly reducing harmful emissions.
The pump operates automatically under control of the engine control unit (ECU) and works together with air valves and sensors to maintain efficient emissions performance.
Functions & Technical Role
• Secondary air injection: Pumps fresh air into the exhaust stream during cold start
• Emission reduction: Helps oxidize unburned fuel in exhaust gases
• Catalytic converter warm-up: Improves catalyst efficiency during engine warm-up
• ECU-controlled operation: Integrates with engine management and emission sensors
• OE reliability: Manufactured to Porsche specifications for correct airflow and durability
Fitment / Position on Car
• Fitting position: Engine compartment / emissions system
• Location: Installed within the secondary air injection system, connected to the exhaust air passages
• System: Exhaust emissions control system
Secondary air pumps operate during every cold start and are exposed to heat, moisture, and frequent operation cycles. Over time, internal components may wear or fail, which can cause:
• Check engine light related to the secondary air system
• Increased cold-start emissions
• Rough idle or unusual pump noise
• Failure during emissions testing
Replacing a faulty pump with a genuine Porsche OE unit restores proper emissions system performance and ensures the vehicle meets factory operating standards.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660510404
99660510400
99660510401
99660510404
The product you are viewing cross references to these numbers
Price: €1,896.79
Orderable
Vehicle Group
- 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 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
Information
Air pump
This OE Match secondary air injection pump (SIR pump) is an emissions control component designed for Porsche 986 Boxster and Porsche 911 (996) models. It forms part of the secondary air injection system, which pumps fresh air into the exhaust system during cold engine start-up to help reduce emissions.
Fits:
Porsche 986 Boxster / Boxster S 2000 - 2004
Porsche 996 C2 /C4 / C4S 2000 - 2005
Porsche 996 Turbo 2001 - 2005
Diagram ref no 1
This part supersedes earlier Porsche part numbers: 99660510400, 99660510401.
The secondary air injection pump, often referred to as a SIR pump or air injection pump, is a key component in the engine emissions system. It operates primarily during cold starts, forcing fresh air into the exhaust manifold. This additional oxygen helps burn remaining fuel vapours in the exhaust gases before they pass through the catalytic converters.
The OE Match secondary air injection pump follows the original Porsche design specifications for airflow capacity, electrical connections and mounting points. This ensures the pump works correctly with the vehicle’s engine control unit (ECU) and secondary air valves.
When the engine is started cold, the pump injects fresh air into the exhaust system. The extra oxygen promotes more complete combustion of residual hydrocarbons in the exhaust stream and allows the catalytic converters to heat up faster.
This process significantly reduces cold-start emissions and helps the vehicle meet environmental regulations.
Function
• Secondary Air Injection: Pumps fresh air into the exhaust system during cold start
• Emission Reduction: Helps burn unburned hydrocarbons in exhaust gases
• Catalytic Converter Warm-Up: Accelerates catalyst operating temperature
• Engine Management Integration: Works with ECU and secondary air valves
Secondary air pumps operate during every cold start and are exposed to moisture, temperature changes and exhaust gases. Over time the internal motor or pump mechanism may fail, which can trigger a check engine light and increase emissions output. Replacing a faulty pump restores proper operation of the emissions system and ensures efficient engine performance.
When to Replace. Consider replacing the secondary air pump if you notice:
• Check engine light related to secondary air injection faults
• Unusual whining or whistling noise during cold start
• Rough idle during cold start
• Vehicle fails emissions testing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660510404
The product you are viewing cross references to these numbers
This OE Match secondary air injection pump (SIR pump) is an emissions control component designed for Porsche 986 Boxster and Porsche 911 (996) models. It forms part of the secondary air injection system, which pumps fresh air into the exhaust system during cold engine start-up to help reduce emissions.
Fits:
Porsche 986 Boxster / Boxster S 2000 - 2004
Porsche 996 C2 /C4 / C4S 2000 - 2005
Porsche 996 Turbo 2001 - 2005
Diagram ref no 1
This part supersedes earlier Porsche part numbers: 99660510400, 99660510401.
The secondary air injection pump, often referred to as a SIR pump or air injection pump, is a key component in the engine emissions system. It operates primarily during cold starts, forcing fresh air into the exhaust manifold. This additional oxygen helps burn remaining fuel vapours in the exhaust gases before they pass through the catalytic converters.
The OE Match secondary air injection pump follows the original Porsche design specifications for airflow capacity, electrical connections and mounting points. This ensures the pump works correctly with the vehicle’s engine control unit (ECU) and secondary air valves.
When the engine is started cold, the pump injects fresh air into the exhaust system. The extra oxygen promotes more complete combustion of residual hydrocarbons in the exhaust stream and allows the catalytic converters to heat up faster.
This process significantly reduces cold-start emissions and helps the vehicle meet environmental regulations.
Function
• Secondary Air Injection: Pumps fresh air into the exhaust system during cold start
• Emission Reduction: Helps burn unburned hydrocarbons in exhaust gases
• Catalytic Converter Warm-Up: Accelerates catalyst operating temperature
• Engine Management Integration: Works with ECU and secondary air valves
Secondary air pumps operate during every cold start and are exposed to moisture, temperature changes and exhaust gases. Over time the internal motor or pump mechanism may fail, which can trigger a check engine light and increase emissions output. Replacing a faulty pump restores proper operation of the emissions system and ensures efficient engine performance.
When to Replace. Consider replacing the secondary air pump if you notice:
• Check engine light related to secondary air injection faults
• Unusual whining or whistling noise during cold start
• Rough idle during cold start
• Vehicle fails emissions testing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660510404
99660510400
99660510401
0580000022
The product you are viewing cross references to these numbers
Price: €388.60
In stock