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Coolant expansion tank bottle. Porsche 9J1.1 Taycan 2020-24 - 9J1121407A
9J1121407A/2
Vehicle Group
- Porsche 9J1.1 Taycan 2020-24
- Porsche 9J1.1 Taycan Sport Turismo 2020-24
- Porsche 9J1.1 Taycan 4 Cross Turismo 2020-24
- Porsche 9J1.1 Taycan 4S 2020-24
- Porsche 9J1.1 Taycan 4S Cross Turismo 2020-24
- Porsche 9J1.1 Taycan 4S Sport Turismo 2020-24
- Porsche 9J1.1 Taycan GTS 2020-24
- Porsche 9J1.1 Taycan GTS Sport Turismo 2020-24
- Porsche 9J1.1 Taycan Turbo 2020-24
- Porsche 9J1.1 Taycan Turbo Cross Turismo 2020-24
- Porsche 9J1.1 Taycan Turbo Sport Turismo 2020-24
- Porsche 9J1.1 Taycan Turbo S 2020-24
- Porsche 9J1.1 Taycan Turbo S Cross Turismo 2020-24
- Porsche 9J1.1 Taycan Turbo S Sport Turismo 2020-24
Information
Coolant expansion tank bottle
The MAHLE CRT 392 000S coolant expansion tank is a high-quality replacement reservoir for the Porsche Taycan’s liquid-cooling and thermal-management system. Cross-referenced to Porsche part number 9J1121407A, the unit is supplied with the reservoir cap and coolant-level sensor, providing a practical, complete replacement for a leaking, cracked or damaged original tank.
Fits:
Porsche 9J1.1 Taycan 2020 - 2024
Diagram ref no 1
The expansion tank accommodates changes in coolant volume as the thermal-management system heats and cools. It stores excess coolant from the closed circuit, helps the system manage pressure and provides a reserve supply as the coolant contracts. Maintaining the correct coolant level is essential to the stable operation of the Taycan’s temperature-control system.
Key Features and Benefits
• MAHLE replacement cooling-system component
• Supplied with coolant reservoir cap
• Includes integrated coolant-level sensor
• Direct cross-reference to Porsche 9J1121407A
• Helps restore correct coolant containment and level monitoring
• Designed for dependable, leak-free operation
• Suitable for replacement of cracked, leaking or damaged tanks
Why Replacement Matters
A cracked or leaking expansion tank can cause coolant loss, prevent the system from maintaining the correct fluid level and compromise thermal-management performance. Prompt replacement helps protect the cooling circuit and supports stable temperature control for the vehicle’s electrical drivetrain systems.
When to Replace the Expansion Tank
• Coolant is visible around the reservoir or its connections
• The tank body is cracked, distorted or discoloured
• A low-coolant warning remains after the coolant level is corrected
• The integrated level sensor is faulty
• The reservoir cap or sealing area is damaged
• Coolant level falls repeatedly without an obvious external hose leak
• During cooling-system repair or accident-damage restoration
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9J1121407A
The product you are viewing cross references to these numbers
The MAHLE CRT 392 000S coolant expansion tank is a high-quality replacement reservoir for the Porsche Taycan’s liquid-cooling and thermal-management system. Cross-referenced to Porsche part number 9J1121407A, the unit is supplied with the reservoir cap and coolant-level sensor, providing a practical, complete replacement for a leaking, cracked or damaged original tank.
Fits:
Porsche 9J1.1 Taycan 2020 - 2024
Diagram ref no 1
The expansion tank accommodates changes in coolant volume as the thermal-management system heats and cools. It stores excess coolant from the closed circuit, helps the system manage pressure and provides a reserve supply as the coolant contracts. Maintaining the correct coolant level is essential to the stable operation of the Taycan’s temperature-control system.
Key Features and Benefits
• MAHLE replacement cooling-system component
• Supplied with coolant reservoir cap
• Includes integrated coolant-level sensor
• Direct cross-reference to Porsche 9J1121407A
• Helps restore correct coolant containment and level monitoring
• Designed for dependable, leak-free operation
• Suitable for replacement of cracked, leaking or damaged tanks
Why Replacement Matters
A cracked or leaking expansion tank can cause coolant loss, prevent the system from maintaining the correct fluid level and compromise thermal-management performance. Prompt replacement helps protect the cooling circuit and supports stable temperature control for the vehicle’s electrical drivetrain systems.
When to Replace the Expansion Tank
• Coolant is visible around the reservoir or its connections
• The tank body is cracked, distorted or discoloured
• A low-coolant warning remains after the coolant level is corrected
• The integrated level sensor is faulty
• The reservoir cap or sealing area is damaged
• Coolant level falls repeatedly without an obvious external hose leak
• During cooling-system repair or accident-damage restoration
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9J1121407A
9J1121407A
The product you are viewing cross references to these numbers
Price: £65.00
Orderable
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Information
Engine coolant filler neck lid.
Fits:
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Porsche 982 Spyder 2019-24
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Click 'Zoom in' for large parts diagram.
Diagram ref no 2
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98110604406
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Click 'Zoom in' for large parts diagram.
Diagram ref no 2
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Information
Water tank filler neck.
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Click 'Zoom in' for large parts diagram.
Diagram ref no 7
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Click 'Zoom in' for large parts diagram.
Diagram ref no 7
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Engine water coolant reservoir. Porsche 982 GTS 4.0L / Cayman GT4 / Boxster Spyder
Code: 98110604706
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Engine water coolant reservoir.
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Click 'Zoom in' for large parts diagram.
Diagram ref no 1
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Diagram ref no 1
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