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.
Fuel Pumps
By OE Match
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- 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
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- 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
Domed Cap Nut – Fuel Pump & Fuel Rail Fixing M12 x 15,5
High-quality domed cap nut designed for securing components within the Porsche fuel system, including the fuel pump and fuel rail assemblies.
Used across a wide range of models including Porsche 924S,
944, 968, 928, and 964, this cap nut provides a secure fastening solution while
protecting exposed threads with its domed design. It plays an important role in
maintaining the integrity and safety of fuel system connections.
Fits:
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- 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
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- 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
Diagram ref no 38
Manufactured to OEM specifications, this component ensures precise fitment, corrosion resistance, and long-term durability—making it ideal for maintenance, repair, or restoration work.
Reference Number: 92811047505
Key Features
• Domed cap nut for fuel system applications
• Used on fuel pump and fuel rail assemblies
• Suitable for multiple Porsche models
• Protects threads while securing components
• OEM-style fit and finish
• Durable, corrosion-resistant construction
Function and Purpose
This cap nut is a key fastening component within the fuel system.
It helps to:
• Secure fuel pump and fuel rail components
• Protect threaded studs from damage and corrosion
• Maintain safe and stable fuel system assembly
• Ensure proper sealing and fastening integrity
Why Replace Cap Nuts
Over time, hardware components can degrade or become damaged.
Common issues include:
• Corrosion or rust
• Rounded or damaged threads
• Loss of proper torque retention
• Compromised fastening security
Replacing worn hardware ensures reliable and safe system assembly.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92811047505
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 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 964 C2 / C4 / RS - 1989 to 1994
Porsche 993 C2 / C4 / Carrera S / Carrera 4S / RS - 1994 to 1997
Porsche 993 turbo - 1994 to 1996
Click 'Zoom in' for large parts diagram.
Diagram ref no 37
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96462095100
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 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
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 964 1990-94
Porsche 993 1994-97
Porsche 928S2 4.7L 1983-86 (M28.19/20 - M28.21/22)
Porsche 928 GT / GTS 1989-95
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92860810406
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- 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
Sold each.

Fits:
Porsche 911 1978-86 (3 pcs per car)
Porsche 911 1987-89 (2 pcs per car)
Porsche 964 1989-94 (3 pcs per car)
Porsche 964 Turbo 1991-94 (2 pcs per car)
Porsche 993 1995-98 (3 pcs per car)
Porsche 993 Turbo 1995-98 (3 pcs per car)
Click 'Zoom in' for large parts diagram.
Diagram ref no 21 (911) / no 12 (964) / no 15, 16 (964 Turbo) / no 12 (993)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970338401
The product you are viewing cross references to these numbers
OEMatch Fuel Pumps — Fit, Function, Confidence
A fuel pump supplies pressurised fuel from the tank to the engine, maintaining the pressure and flow your Porsche needs for reliable starting, smooth idling and predictable throttle response. OEMatch selects pumps suited to Porsche models, from restoration projects to routine replacement tasks.
Available Types
- In-tank electric pumps and modules
- External mechanical and electric pumps
- Pump modules with integrated sender units
- High-flow units for specific performance applications
Understanding OEMatch Fuel Pumps
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original fuel pumps.
OE (Original Equipment) refers to parts matching original specifications for the fuel pumps and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM fuel pumps engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
The pump moves fuel from the tank to the injectors at the pressure required by the engine management system. In many Porsche models the pump is mounted inside the tank as a sealed module, while other models use an external unit. Pumps depend on clean fuel and a stable electrical supply; some assemblies also include a sender or strainer. Choosing the correct type for the model and fuel system layout helps maintain consistent delivery and avoids premature wear.
Benefits Include
- Restores and maintains correct fuel pressure for stable combustion
- Improves starting reliability and throttle response
- Reduces risk of stalling and hesitation under load
Why Fuel Pumps Wear and Fail
- Contamination from dirt, rust or water in the tank
- Running low on fuel, causing overheating or cavitation
- Electrical faults such as intermittent power or corroded connections
- Clogged filters or blocked lines reducing flow and stressing the motor
The Importance of Replacing with OEMatch Fuel Pumps
Replacing a worn or failing pump restores the fuel pressure and flow the engine needs to run cleanly and responsively. Correct replacement helps prevent misfires, extended cranking and potential damage to injectors or fuel lines. OEMatch parts are chosen to suit Porsche systems and can support both routine maintenance and vehicle restoration efforts.
Advantages
- Direct-fit replacements engineered to match original dimensions and tolerances
- Corrosion-resistant materials and sealed assemblies for longer service life
- Options that match factory electrical and mounting interfaces for straightforward installation
Support & Advice
Fitting can appear straightforward but may require procedures such as correct torque settings and careful routing of hoses. If you lack the correct tools or model-specific knowledge, we recommend professional installation. Recheck fasteners and connections after initial running and observe for any diagnostic codes or fuel odours.