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- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
This OE Match rubber mount is a replacement vibration isolator used to secure the rear fuel pump on Porsche 911 models from 1974 to 1989. It is designed to match the original-style fitment and helps hold the fuel pump securely while reducing vibration transfer to the body.
Sold each
Fits:
Porsche 911 1974 - 1979 (2 pcs per car)
Porsche 911 Turbo 1975 - 1989 (3 pcs per car)
Diagram ref no 6
The rubber mount supports the fuel pump in its mounting position and helps absorb vibration generated by pump operation and vehicle movement. It keeps the pump correctly located, reduces noise, and helps protect the fuel pump and mounting bracket from excess stress.
Functions
• Secures the rear fuel pump to its mounting bracket
• Helps isolate fuel pump vibration from the body
• Reduces fuel pump noise and resonance
• Supports correct pump alignment and fitment
• Helps protect fuel lines and pump fittings from movement stress
• Replaces perished, cracked, loose, or missing original rubber mounts
• OE Match replacement for fuel system repair or restoration.
Why Replace This Part?
Rubber fuel pump mounts can harden, crack, split, collapse, or detach with age, fuel exposure, heat, and road vibration. A worn mount may allow the fuel pump to move, vibrate, or create extra noise, and can place stress on fuel lines and electrical connections. Replacing the mount helps restore secure fuel pump installation and quieter, more reliable operation.
When to Replace This Part
• The fuel pump mount is cracked, perished, split, or missing
• The fuel pump feels loose or moves on its bracket
• There is increased fuel pump noise or vibration
• The rear fuel pump or fuel lines are being replaced
• The mounting hardware has been removed during fuel system service
• Fuel pump alignment or bracket security needs to be restored
• The vehicle is undergoing classic Porsche fuel system restoration.
Where it fits on the car
This rubber mount fits at the rear fuel pump mounting point, securing the fuel pump to its bracket or body mounting area. It forms part of the fuel pump support assembly on Porsche 911 models using a rear-mounted fuel pump arrangement.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970338401
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- 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
Fits:
Porsche 911 3.2L 1984 - 89
Porsche 924S 1986 - 88
Porsche 944 2.5L 1982 - 88
Porsche 944 Turbo M44.52
Porsche 944 2.7L 1989 - 91
Porsche 944S2 3.0L 16V 1989 - 91
Porsche 968 1992 - 95
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94460810206
The product you are viewing cross references to these numbers
- 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 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
Rubber mount with 6 mm Studs for pump support bracket.
Sold each.
Fits:
Porsche 924 S 1987 - 1988
Porsche 928 / S / S4 / GT / GTS 1978 - 1995
Porsche 944 / S / S2 / Turbo 1983 - 1991
Diagram ref no 15
This bonded rubber mount / fuel pump mount (rubber isolator) used to support fuel pump, fuel filter, and/or fuel accumulator brackets on various classic Porsche models. It isolates the fuel‐system components from chassis vibrations and engine movement, helping to ensure clean, reliable fuel delivery.
This mount reduces vibration and noise from the fuel pump and filter assembly, protecting hoses, lines, and fittings from damage. It keeps fuel-system components securely in place, preventing movement that could cause leaks. By ensuring stability, it supports consistent fuel flow and pressure while protecting electrical connections and overall system integrity.
Replacing a worn fuel pump mount is crucial for both safety and performance. Over time, degraded rubber can allow excessive movement, leading to leaks, noisy vibrations, and added strain on fuel lines or seals. A fresh mount keeps the pump properly aligned, ensuring efficient fuel delivery and extending component life. For classic Porsches, it also preserves reliability and protects surrounding parts from unnecessary wear.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94461011500
The product you are viewing cross references to these numbers
.jpg?width=197 "Domed Cap Nut Fuel Pump and Fuel Rail. Porsche 911 / 924S / 928 / 944 / 968 / 964 - 92811047504, 9281104750Y, 92811047500, 92811047501, 92811047503, 92811047505 - PHMEL")
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- 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