Please wait… 
Please wait while we process your order,
do not press the back button…
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.
Category Filter
Coolant Expansion Tank, Breather Line. Porsche 9YA / 9YB Cayenne 2018>> - PAB12108115
PAB12108115
Vehicle Group
- 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>>
Information
Coolant Expansion Tank, Breather Line.
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>>
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB12108115
The product you are viewing cross references to these numbers
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
PAB12108115
The product you are viewing cross references to these numbers
Price: €58.91
Orderable
Related products
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
Information
Water Hose.
Renew the coolant overflow connection on your Porsche Boxster with this genuine OEM overflow hose. Designed for the Boxster 1997-2008, this main fill/overflow hose links the cooling system to the expansion reservoir, ensuring proper coolant expansion, return flow and system pressure stability.
Fits:
Diagram Ref No 29
What This Product Does:
Symptoms Of Wear Or When To Replace:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610626703
The product you are viewing cross references to these numbers
Renew the coolant overflow connection on your Porsche Boxster with this genuine OEM overflow hose. Designed for the Boxster 1997-2008, this main fill/overflow hose links the cooling system to the expansion reservoir, ensuring proper coolant expansion, return flow and system pressure stability.
Fits:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
Diagram Ref No 29
What This Product Does:
- This hose functions as the connection between the cooling system (likely radiator or coolant header) and the overflow/expansion reservoir. When coolant expands under heat or pressure, surplus fluid flows into the reservoir; conversely when the system cools, fluid returns.
- Ensures that cooling system overflow is safely directed, that the reservoir receives the fluid, and that the cooling circuit maintains correct pressure, volume and recirculation.
- Proper operation helps avoid coolant loss, maintain correct cooling system levels, and helps prevent boil-over or overheating due to un-controlled coolant expansion.
Symptoms Of Wear Or When To Replace:
- Coolant leakage around the reservoir, hose clamps, or along the path of the overflow hose — e.g., dripping coolant, crusty residue near joints.
- Overheating or low coolant, where the expansion reservoir remains dry, suggesting the hose isn’t delivering returning fluid or has collapsed.
- Burst, cracked or hardened hose— rubber hoses degrade with heat/age, causing soft spots, bulges, cracks or collapse under pressure.
- Hose slack or loose clamps— if the hose is long out of service it might sag, the ends may be brittle, or clamps may be corroded leading to poor seal.
- If the vehicle is running very hot or the coolant level drops unexpectedly, and checks show the overflow system not functioning properly.
- On older Boxsters many cooling-system hoses are aged and replacement is preventive maintenance.
Why Replacement Matters:
- Maintains cooling system integrity: A faulty overflow hose can lead to coolant loss, pressure escape or improper reservoir return—affecting system performance and engine cooling.
- Prevents overheating or coolant loss: Since the hose handles expansion flows, failure can result in overflow at wrong points or low reservoir levels, which may lead to engine overheating or damage.
- Reliability and longevity: Rubber coolant hoses degrade over time due to heat, vibration and pressure cycles — replacing them restores system reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610626703
99610626703
99610626702
99610626700
The product you are viewing cross references to these numbers
€36.34
Now €32.71
In stock