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Porsche > Cayenne 9YA.2 (E3 II) 2023>> > 9YA.2 Cayenne Coupe V6 3.0L (353Hp) 2023>> > Engine Cooling > Coolant Hoses and Pipes (Front engine cars) >

Engine Block Hoses

Engine Block Hoses

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DISPLAYING 17 to 20 (of 20 products)
1 2
O-Ring for Thermo-Pneumatic Valve. Porsche 971/976 Panamera / 9YA/9YA-2 Cayenne / 95B-2 Macan
4
O-Ring for Thermo-Pneumatic Valve. Porsche 971/976 Panamera / 9YA/9YA-2 Cayenne / 95B-2 Macan
Special Order item
9A712117100
Product Information
Product Information
O-ring for thermo-pneumatic valve - sits between coolant pipe and the valve itself.

porsche

Fits:
Porsche 971.1 Panamera / Panamera 4 3.0L V6 2017-21
Porsche 971.1 Panamera 4S 2.9L V6 2017-21
Porsche 971.1 Panamera 4 E-Hybrid 2.9L V6 2017-21

--
Porsche 971.2 Panamera / Panamera 4 2.9L V6 2021-24
Porsche 971.2 Panamera 4S 2.9L V6 2021-24
Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-24
Porsche 971.2 Panamera 4S E-Hybrid 2.9L V6 2021-24
--
Porsche 976 Panamera / Panamera 4 2.9L V6 2024>>
--
Porsche 9YA Cayenne 3.0L V6 2018-24
Porsche 9YA Cayenne S 2.9L V6 2018-24
--
Porsche 9YA-2 Cayenne 3.0L V6 2023>>
--
Porsche 95B-2 Macan S / GTS / Turbo 2.9L V6 2019-25

Click 'Zoom in' for large parts diagram.
Diagram ref no 15

Water Pipe O-Ring, 41.8x1.85. Porsche 95B.2 Macan / 971.1 / 971.2 / 976 Panamera / 9YA / 9YB Cayenne 2017>> - 9A712143713, 9A712143712
2
Water Pipe O-Ring, 41.8x1.85. Porsche 95B.2 Macan / 971.1 / 971.2 / 976 Panamera / 9YA / 9YB Cayenne 2017>>
Special Order item
9A712143713
Product Information
Product Information
Water Pipe O-Ring, 41.8x1.85. 

Fits:
Porsche 95B.2 Macan S 3.0L V6 Petrol MKII 2019>>2021
Porsche 95B.2 Macan GTS 2.9L V6 Petrol MKII 2019>>2021
Porsche 95B.2 Macan Turbo 2.9L V6 MKII 2019>>2021
Cars With Engine Codes:
DLZ / DLZB / DGR / DGRB / DGRC

Porsche 971.1 Panamera 3.0L V6 MKI 2017>>2020
Porsche 971.1 Panamera 2.9L / 2.9L E-Hybrid MKI 2017>>2020
Cars With Engine Codes:
CSZ / CSZA / CSZB / CXT / CXTA / DGP / DGPA

Porsche 971.2 Panamera 2.9L / 2.9L E-Hybrid MKII 2021>>2023
Cars With Option Codes:
0K0 - Without Alternative Drive System
0K3 - Hybrid Propulsion System PHEV

Porsche 976 Panamera 2.9L / 2.9L E-Hybrid 2023>>

Porsche 9YA Cayenne 3.0L / 3.0L E-Hybrid 2018>>2023
Porsche 9YA Cayenne 2.9L / 2.9L E-Hybrid 2018>>2023
Cars With Engine Codes:
DCAB / DCA / DCBE / DCB

Porsche 9YB Cayenne / Cayenne S 3.0L / 3.0L E-Hybrid 2023>>

Diagram Ref No 11

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

9A712143713
9A712143713
9A712143712

The product you are viewing cross references to these numbers
Water Pipe. Porsche 9YA / 9YA.2 Cayenne 2.9L / 3.0L 2018>> - PAB81992700
2
Water Pipe. Porsche 9YA / 9YA.2 Cayenne 2.9L / 3.0L 2018>>
Special Order item
PAB81992700
Product Information
Product Information
Water Pipe.
The Porsche Water Pipe is a genuine Porsche cooling system component designed to provide a reliable passage for engine coolant between key cooling system components. Manufactured to Porsche's exact specifications for fit, flow characteristics and durability, this water pipe ensures efficient coolant circulation, helping maintain the correct engine operating temperature and protecting the engine from overheating.  

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 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>> 
 
Diagram Ref No 5

Constructed from high-quality corrosion-resistant metal and precision-engineered to match the original factory design, the water pipe is built to withstand high coolant pressures, extreme temperature variations, engine vibration and prolonged exposure to coolant. Its OE-quality construction ensures accurate routing, secure connections and long-lasting, leak-free performance.  

What This Product Does:
  • Transfers engine coolant between cooling system components.
  • Maintains continuous coolant circulation.
  • Helps regulate engine operating temperature.
  • Supports efficient heat transfer throughout the cooling system.
  • Provides a secure, leak-free coolant pathway.
  • Helps prevent engine overheating.
  • Protects critical engine components through effective cooling.
  • Forms an essential part of the engine cooling system.

Symptoms Of Wear Or Failure:
  • Visible coolant leaks.
  • Low coolant level.
  • White or coloured coolant residue around the pipe or joints.
  • Corrosion or rust on the pipe.
  • Cracked or damaged pipe sections.
  • Engine overheating.
  • Coolant warning light illumination.
  • Steam from the engine bay.
  • Sweet coolant smell after driving.
  • Frequent coolant top-ups.

Why Replacement Matters:

  • The water pipe operates continuously in demanding conditions, where it is exposed to pressurised coolant, high operating temperatures, engine vibration and environmental contaminants. Over time, corrosion, fatigue or physical damage can weaken the pipe or its sealing surfaces, leading to coolant leaks and reduced cooling system efficiency.
  • A leaking or damaged water pipe can result in coolant loss, causing the engine to overheat and increasing the risk of serious damage such as cylinder head distortion, head gasket failure and premature wear of internal engine components. Even small leaks can reduce cooling efficiency and lead to expensive repairs if not addressed promptly.
  • Replacing a worn or damaged water pipe restores reliable coolant circulation and ensures the cooling system performs as Porsche intended. A genuine Porsche replacement guarantees factory-correct fitment, premium-quality materials and exceptional durability, helping maintain optimum engine temperature, reliability and the high-performance standards expected from your Porsche.



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

PAB81992700
PAB81992700

The product you are viewing cross references to these numbers
Water Pipe. Porsche 9YA / 9YA.2 Cayenne 2.9L / 3.0L 2018>> - PAB81992700 - 84559
2
Water Pipe. Porsche 9YA / 9YA.2 Cayenne 2.9L / 3.0L 2018>>
PAB81992700/1
Product Information
Product Information
Water Pipe.
The OE MATCH Water Pipe is a genuine Porsche cooling system component designed to provide a reliable passage for engine coolant between key cooling system components. This water pipe ensures efficient coolant circulation, helping maintain the correct engine operating temperature and protecting the engine from overheating.  

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 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>> 
 
Diagram Ref No 5

Constructed from high-quality corrosion-resistant metal and precision-engineered, the water pipe is built to withstand high coolant pressures, extreme temperature variations, engine vibration and prolonged exposure to coolant.

What This Product Does:
  • Transfers engine coolant between cooling system components.
  • Maintains continuous coolant circulation.
  • Helps regulate engine operating temperature.
  • Supports efficient heat transfer throughout the cooling system.
  • Provides a secure, leak-free coolant pathway.
  • Helps prevent engine overheating.
  • Protects critical engine components through effective cooling.
  • Forms an essential part of the engine cooling system.

Symptoms Of Wear Or Failure:
  • Visible coolant leaks.
  • Low coolant level.
  • White or coloured coolant residue around the pipe or joints.
  • Corrosion or rust on the pipe.
  • Cracked or damaged pipe sections.
  • Engine overheating.
  • Coolant warning light illumination.
  • Steam from the engine bay.
  • Sweet coolant smell after driving.
  • Frequent coolant top-ups.

Why Replacement Matters:

  • The water pipe operates continuously in demanding conditions, where it is exposed to pressurised coolant, high operating temperatures, engine vibration and environmental contaminants. Over time, corrosion, fatigue or physical damage can weaken the pipe or its sealing surfaces, leading to coolant leaks and reduced cooling system efficiency.
  • A leaking or damaged water pipe can result in coolant loss, causing the engine to overheat and increasing the risk of serious damage such as cylinder head distortion, head gasket failure and premature wear of internal engine components. Even small leaks can reduce cooling efficiency and lead to expensive repairs if not addressed promptly.
  • Replacing a worn or damaged water pipe restores reliable coolant circulation and ensures the cooling system performs as Porsche intended. 



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

PAB81992700
PAB81992700

The product you are viewing cross references to these numbers
DISPLAYING 17 to 20 (of 20 products)
1 2
About Engine Block Hoses

Engine Block Coolant Hoses – Front Engine Porsche Models | Reliable Cooling for Peak Performance

Engine block coolant hoses are critical to maintaining stable engine temperatures and preventing overheating in your Porsche’s front-engine cooling system. These hoses circulate coolant between the engine block, radiator, and heater core, ensuring consistent temperature regulation and efficient heat dissipation — essential for performance, reliability, and longevity.

At Design911, we supply a complete selection of genuine and manufacturer-quality engine block coolant hoses for front-engine Porsche models, including the transaxle models, Cayenne, Panamera, and Macan. Each hose is precisely engineered for a perfect fit and superior heat resistance, offering the same durability, flexibility, and performance as factory-installed components.

What Do Engine Block Coolant Hoses Do?

Coolant hoses in the engine block are responsible for transferring coolant throughout the engine’s cooling circuit. Their main functions include:

  • Carrying coolant between the radiator, water pump, and engine block.
  • Regulating engine temperature for efficient performance.
  • Maintaining system pressure within the cooling system.
  • Preventing heat build-up that can lead to overheating or gasket failure.

Properly functioning coolant hoses are essential for ensuring your Porsche’s front-mounted engine operates within optimal temperature ranges — especially during heavy use or long drives.

Why Do Engine Block Coolant Hoses Fail?

Due to constant exposure to heat, pressure, and coolant chemicals, these hoses naturally degrade over time. Common causes of failure include:

  • Heat damage from prolonged exposure to high engine temperatures.
  • Rubber deterioration or cracking from age and coolant corrosion.
  • Leaks at joints or clamps due to pressure fluctuations.
  • Swelling or soft spots from internal chemical breakdown.
  • Mechanical abrasion from contact with nearby components.

Symptoms of failing hoses include visible coolant leaks, overheating, low coolant levels, or a strong coolant smell from the engine bay.

Why Replace Faulty Engine Block Coolant Hoses?

A leaking or weakened hose can cause serious cooling system failures, including overheating and engine damage. Replacing old or brittle hoses ensures reliable coolant circulation and safeguards your Porsche’s engine performance.

Benefits of replacement include:

  • Restored cooling efficiency and pressure control.
  • Prevention of leaks and overheating.
  • Improved long-term reliability and system safety.
  • Manufacturer-quality materials for perfect fit and heat resistance.

All replacement hoses in this range are constructed using reinforced, high-grade rubber compounds that meet or exceed factory standards, ensuring durability and dependability in all driving conditions.

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