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.
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
Water Coolant Pipe to Expansion Tank
Maintain the reliability and efficiency of your Porsche 924
cooling system with this OE Match Water Coolant Pipe to the Expansion Tank. This coolant hose connects the engine cooling system to the
expansion tank, allowing coolant to circulate correctly while accommodating
thermal expansion and contraction during engine operation.
Fits:
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
Diagram ref no 5
The expansion tank plays a vital role in maintaining correct coolant levels and system pressure. The connecting coolant pipe ensures that excess coolant can flow into the expansion tank as temperatures rise and return to the cooling system as the engine cools. Without a properly functioning hose, coolant circulation and pressure management can be compromised, potentially leading to overheating and coolant loss.
Manufactured to OE Match specifications, this replacement hose provides the correct fit, flexibility and durability required for reliable long-term operation.
What Does the Coolant Pipe to Expansion Tank Do?
The coolant pipe forms part of the engine's closed cooling system.
Its primary functions include:
- Connecting the cooling system to the expansion tank
- Allowing coolant expansion and return flow
- Maintaining correct coolant levels
- Supporting cooling system pressure regulation
- Preventing coolant loss
- Assisting engine temperature control
- Helping maintain overall cooling system efficiency
A properly functioning hose is essential for reliable engine cooling and long-term engine protection.
Why Do Coolant Pipes Fail?
Cooling system hoses are constantly exposed to heat cycles, pressure fluctuations and coolant chemicals.
Common causes of failure include:
- Rubber deterioration due to age
- Heat-related hardening and cracking
- Internal hose degradation
- Coolant contamination
- Pressure fatigue
- Engine bay heat exposure
- Perished rubber connections
- General wear and ageing
As the hose ages, it may become brittle, swollen, cracked or develop leaks.
When Should the Coolant Pipe Be Replaced?
Cooling system hoses should be inspected regularly during routine servicing.
Common signs replacement is required include:
- Coolant leaks
- Cracked or split hose surfaces
- Soft or swollen hose sections
- Coolant smell within the engine bay
- Visible hose deterioration
- Cooling system pressure loss
- Unexplained coolant level drops
- Preventative maintenance during cooling system refurbishment
Replacing ageing hoses before failure helps avoid costly overheating damage.
Why Replacement Matters
A failed coolant hose can quickly lead to coolant loss and engine overheating.
Benefits of replacement include:
- Improved cooling system reliability
- Reduced risk of coolant leaks
- Better engine temperature control
- Protection against overheating
- Improved cooling system pressure retention
- Increased long-term reliability
- Reduced risk of roadside breakdowns
- Restoration of factory cooling performance
For classic Porsche models, preventative cooling system maintenance is one of the best investments in long-term engine health.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
047121060
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
- Porsche 9YA.2 Cayenne V6 3.0L Petrol (353Hp) 2023>>
- Porsche 9YA.2 Cayenne Coupe V6 3.0L (353Hp) 2023>>
- Porsche 9YA.2 Cayenne E-Hybrid V6 3.0L (470Hp) 2023>>
- Porsche 9YA.2 Cayenne E-Hybrid Coupe V6 3.0L (470Hp) 2023>>
- Porsche 9YA.2 Cayenne S E-Hybrid V6 3.0L (519Hp) 2023>>
- Porsche 9YA.2 Cayenne S E-Hybrid Coupe V6 3.0L (519Hp) 2023>>
- Porsche 9YA.2 Cayenne GTS V8 4.0L Bi-Turbo Petrol 2023>>
- Porsche 9YA.2 Cayenne GTS Coupe V8 4.0L Bi-Turbo 2023>>
Line Holder Included.
Fits:
Porsche 9YA Cayenne 2.9L V6 Petrol 2018>>2024
Porsche 9YA Cayenne 3.0L V6 Petrol 2018>>2024
Cars With Option Codes:
0K0 - Without Alternative Drive System
Porsche 9YA Cayenne 3.0L V6 E-Hybrid 2018>>2024
Cars With Option Codes:
0K3 - Hybrid Propulsion System PHEV
Porsche 9YB Cayenne 3.0L V6 Petrol 2023>>
Cars With Option Codes:
0K0 - Without Alternative Drive System
Porsche 9YB Cayenne 3.0L V6 E-Hybrid 2023>>
Cars With Option Codes:
0K3 - Hybrid Propulsion System PHEV
Diagram Ref No 11 (Diagram Ref No 12 Included)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB12108115
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
- Porsche 9YA.2 Cayenne V6 3.0L Petrol (353Hp) 2023>>
- Porsche 9YA.2 Cayenne Coupe V6 3.0L (353Hp) 2023>>
- Porsche 9YA.2 Cayenne E-Hybrid V6 3.0L (470Hp) 2023>>
- Porsche 9YA.2 Cayenne E-Hybrid Coupe V6 3.0L (470Hp) 2023>>
- Porsche 9YA.2 Cayenne S E-Hybrid V6 3.0L (519Hp) 2023>>
- Porsche 9YA.2 Cayenne S E-Hybrid Coupe V6 3.0L (519Hp) 2023>>
- Porsche 9YA.2 Cayenne GTS V8 4.0L Bi-Turbo Petrol 2023>>
- Porsche 9YA.2 Cayenne GTS Coupe V8 4.0L Bi-Turbo 2023>>
The Coolant Expansion Tank Breather Line is a OE MATCH cooling system component designed to vent air and vapour from the coolant expansion tank. This breather hose ensures proper pressure regulation within the cooling system while supporting efficient coolant circulation and recovery.
Fits:
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
- Porsche 9YA.2 Cayenne V6 3.0L Petrol (353Hp) 2023>>
- Porsche 9YA.2 Cayenne Coupe V6 3.0L (353Hp) 2023>>
- Porsche 9YA.2 Cayenne E-Hybrid V6 3.0L (470Hp) 2023>>
- Porsche 9YA.2 Cayenne E-Hybrid Coupe V6 3.0L (470Hp) 2023>>
- Porsche 9YA.2 Cayenne S E-Hybrid V6 3.0L (519Hp) 2023>>
- Porsche 9YA.2 Cayenne S E-Hybrid Coupe V6 3.0L (519Hp) 2023>>
Diagram Ref No 11
What This Product Does:
- Allowing trapped air and vapour to vent from the coolant reservoir
- Maintaining correct cooling system pressure balance
- Preventing airlocks within the coolant circuit
- Supporting efficient coolant recovery and circulation
- Helping ensure stable engine temperature regulation
Symptoms Of Wear Or Failure:
- Coolant leaks near the expansion tank
- Cracked, brittle, or split hose material
- Coolant smell from the engine bay
- Low coolant warning light
- Air present in the cooling system after bleeding
- Fluctuating engine temperature readings
- Coolant residue around hose fittings
Why Replacement Matters:
- Maintain correct cooling system pressure
- Prevent airlocks and circulation issues
- Protect the engine from overheating damage
- Restore reliable cooling system performance
- Avoid costly repairs caused by cooling system failure
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB12108115
The product you are viewing cross references to these numbers