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Porsche > 924 (1977-1988) > 924 Turbo 2.0L 1982-84 > Gearbox / Transmission >

Transmission Cooling

Transmission Cooling

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M12 Banjo Bolt with Various Applications. Porsche 911 / 964 / 993 / 924 / 928 - 90017502001
2
M12 Banjo Bolt with Various Applications. Porsche 911 / 964 / 993 / 924 / 928
Special Order item
90017502001
Product Information
Product Information

M12 Banjo Bolt – Various applications
Sold each

M12 banjo bolt  designed for multiple applications across Porsche models including the 911, 964, 993, 924, and 928.

Fits:

  • Porsche 911 1975-1977 3.0L Turbo (930)
  • 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 924 Turbo 2.0L 1979-81
  • Porsche 924 Turbo 2.0L 1982-84
  • Porsche 924 Carrera GT 2.0L 1981
  • Porsche 924 Carrera GTS 2.0L 1982
  • Porsche 928 4.5L 1978-82

Diagram ref no 39 

This versatile banjo bolt is used to secure banjo fittings on wastegates, fuel pipes, gearbox oil pipes and power steering systems, ensuring a strong and leak-free connection under pressure. It is particularly important in turbocharged applications where reliable sealing is critical for maintaining correct oil and fuel flow.

Manufactured to OEM specifications, this bolt delivers precise fitment and dependable sealing performance across multiple systems, making it ideal for maintenance, repair, or restoration of Porsche vehicles.

Key Features

• M12 banjo bolt for multiple Porsche applications
• Suitable for wastegate, fuel pipes, and power steering systems
• Compatible with 911, 964, 993, 924, and 928 models
• Designed for high-pressure fluid systems
• Ensures secure, leak-free connections
• OEM-style fit and specification
• Durable construction for long-term reliability

Function and Purpose

This banjo bolt is a critical fastening component used across several systems.

It helps to:
• Secure banjo fittings to wastegate oil lines
• Connect fuel pipes within the fuel delivery system
• Fasten power steering fluid lines
• Maintain proper sealing under pressure
• Ensure consistent fluid flow and system performance

Why Replace Banjo Bolts

Over time, banjo bolts can wear or degrade due to pressure, heat, and fluid exposure.

Common issues include:
• Oil or fuel leaks at connection points
• Thread wear or damage
• Corrosion over time
• Reduced sealing performance

Replacing worn bolts ensures safe operation and maintains system integrity across multiple vehicle systems.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90017502001
90017502001

The product you are viewing cross references to these numbers
M12 Banjo Bolt with Various Applications. Porsche 911 / 964 / 993 / 924 / 928 - 90017502001 - PHSM12
4
M12 Banjo Bolt with Various Applications. Porsche 911 / 964 / 993 / 924 / 928
90017502001/1
Product Information
Product Information

M12 Banjo Bolt – Various applications
Sold each

M12 banjo bolt  designed for multiple applications across Porsche models including the 911, 964, 993, 924, and 928.

Fits:

  • Porsche 911 1975-1977 3.0L Turbo (930)
  • 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 924 Turbo 2.0L 1979-81
  • Porsche 924 Turbo 2.0L 1982-84
  • Porsche 924 Carrera GT 2.0L 1981
  • Porsche 924 Carrera GTS 2.0L 1982
  • Porsche 928 4.5L 1978-82

Diagram ref no 39 

This versatile banjo bolt is used to secure banjo fittings on wastegates, fuel pipes, gearbox oil pipes and power steering systems, ensuring a strong and leak-free connection under pressure. It is particularly important in turbocharged applications where reliable sealing is critical for maintaining correct oil and fuel flow.

Manufactured to OEM specifications, this bolt delivers precise fitment and dependable sealing performance across multiple systems, making it ideal for maintenance, repair, or restoration of Porsche vehicles.

Key Features

• M12 banjo bolt for multiple Porsche applications
• Suitable for wastegate, fuel pipes, and power steering systems
• Compatible with 911, 964, 993, 924, and 928 models
• Designed for high-pressure fluid systems
• Ensures secure, leak-free connections
• OEM-style fit and specification
• Durable construction for long-term reliability

Function and Purpose

This banjo bolt is a critical fastening component used across several systems.

It helps to:
• Secure banjo fittings to wastegate oil lines
• Connect fuel pipes within the fuel delivery system
• Fasten power steering fluid lines
• Maintain proper sealing under pressure
• Ensure consistent fluid flow and system performance

Why Replace Banjo Bolts

Over time, banjo bolts can wear or degrade due to pressure, heat, and fluid exposure.

Common issues include:
• Oil or fuel leaks at connection points
• Thread wear or damage
• Corrosion over time
• Reduced sealing performance

Replacing worn bolts ensures safe operation and maintains system integrity across multiple vehicle systems.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90017502001
90017502001

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
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About Transmission Cooling

Porsche Transmission Cooling - Protect Gearbox Performance & Longevity

Porsche transmission cooling components are designed to regulate gearbox temperatures under load, helping maintain optimal oil viscosity, smooth shifting, and long-term transmission reliability. By dissipating excess heat generated during high-speed driving, towing, or track use, transmission coolers and associated components protect critical internal parts from premature wear and failure.

Available from Design911, Porsche transmission cooling solutions are ideal for both preventative maintenance and performance-focused upgrades, ensuring your gearbox operates within safe temperature limits.

What Do Porsche Transmission Cooling Components Do?

Transmission cooling systems manage heat build-up within the gearbox and transmission oil.

Core Functions:

  • Reduce gearbox and transmission oil temperatures
  • Maintain consistent lubrication under load
  • Prevent thermal breakdown of transmission fluid
  • Support smooth shifting and drivetrain efficiency
  • Protect internal gears, bearings, and seals

Effective transmission cooling is essential for sustained performance and durability.

Why Do Transmission Cooling Components Fail?

Transmission cooling components are exposed to heat, pressure, and environmental factors that can cause wear over time.

Common Causes of Failure:

  • Blocked or restricted cooling lines
  • Degraded hoses or seals due to heat cycling
  • Oil cooler contamination or internal blockage
  • Physical damage from road debris
  • Increased thermal load from performance driving

When cooling efficiency drops, transmission temperatures rise, accelerating internal wear.

When Should Transmission Cooling Components Be Replaced?

Porsche transmission cooling parts should be inspected or replaced if any of the following occur:

  • Rising transmission temperatures or warning messages
  • Transmission fluid leaks around cooler lines
  • Burnt or degraded gearbox oil
  • Poor shifting performance under load
  • During gearbox servicing or performance upgrades

Replacing worn cooling components early helps prevent costly gearbox repairs.

Highlights

  • Essential Porsche gearbox cooling components
  • Helps control transmission oil temperatures
  • Protects internal gearbox parts from heat damage
  • Suitable for road, fast-road, and track use
  • OEM-spec and performance-focused solutions       

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