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Porsche > Macan (95B) MK1 (2014-2018) > 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18 > 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)
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Engine coolant vent line. Porsche 958 Cayenne / 95B.1 Macan / 970.2 Panamera - 94610602660, 94610602661
3
Engine coolant vent line. Porsche 958 Cayenne / 95B.1 Macan / 970.2 Panamera
Special Order item
94610602661
Product Information
Product Information
Engine coolant vent line
This original Porsche coolant vent / breather line forms part of the engine cooling system, helping bleed air and route coolant vapour or coolant flow correctly through the cooling circuit.

Fits:
Porsche 958 Cayenne 3.6L 2011 - 2018
Porsche 95B.1 Macan 3.0L / 3.6L  2014 - 2018
Porsche 970.2 Panamera 3.0L 2013 - 2016

Diagram ref no 12

What This Part Does / Functions
• Helps vent air from the engine cooling system
• Routes coolant or coolant vapour through the correct cooling circuit path
• Supports proper coolant circulation and system bleeding
• Helps reduce the risk of trapped air pockets in the cooling system
• Assists stable engine operating temperature
• Replaces a cracked, brittle, leaking or damaged original vent line
• Provides correct OE Porsche routing, shape and connection fitment
• Supports reliable cooling system performance.

Why Replace This Part?
Coolant vent lines are exposed to heat cycles, coolant pressure, vibration and age-related plastic or rubber deterioration. Over time, the line can become brittle, crack, split or leak. A failed coolant vent line may cause coolant loss, coolant smell, low coolant warnings, pressure loss or overheating. Replacing it with a Genuine Porsche OE engine coolant vent line helps restore correct cooling system venting and factory fitment. This is especially important on Porsche V6 applications where the coolant vent line routing is critical to proper system bleeding and coolant circulation.

Common Symptoms of a Faulty Coolant Vent Line
•  Coolant smell from the engine bay
•  Visible coolant leak or dried coolant residue
•  Low coolant warning
•  Cooling system pressure loss
•  Air trapped in the cooling system
•  Engine temperature fluctuations
•  Brittle, cracked or broken coolant line
•  Coolant seepage after previous cooling system work.

When to Replace
•  This Part If the original vent line is cracked, brittle, leaking or damaged
•  If coolant loss is traced to the vent line
•  During cooling system overhaul or hose replacement
•  When replacing related coolant pipes, hoses or thermostat components
•  If the cooling system is difficult to bleed correctly
•  During intake manifold or engine-top service where the line is disturbed
•  When recommissioning a vehicle with unknown cooling system history

Where It Fits on the Car
This coolant vent line fits in the engine cooling system, routed around the engine coolant pipework / breather circuit. It connects into the coolant venting system and helps remove air from the cooling circuit. Correct routing and secure connections are important to prevent leaks and maintain proper cooling system operation.

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

94610602661
94610602660
94610602661

The product you are viewing cross references to these numbers
Engine coolant vent line. Porsche 958 Cayenne / 95B.1 Macan / 970.2 Panamera 94610602660 - 94610602660, 94610602661 - 946 106 026 60
3
Engine coolant vent line. Porsche 958 Cayenne / 95B.1 Macan / 970.2 Panamera 94610602660
94610602661/1
Product Information
Product Information
Engine coolant vent line
OE Match engine coolant vent line for Porsche 958 Cayenne, 95B.1 Macan, and 970.2 Panamera models. This replacement cooling system vent line helps route coolant and air bleed flow correctly, supporting reliable cooling system operation and proper system bleeding.

Fits:
Porsche 958 Cayenne 3.6L 2011 - 2018
Porsche 95B.1 Macan 3.0L / 3.6L  2014 - 2018
Porsche 970.2 Panamera 3.0L 2013 - 2016

Diagram ref no 12

The coolant vent line helps move trapped air and coolant through the cooling system venting circuit. Correct vent line operation supports cooling system bleeding, helps prevent air pockets, and assists stable coolant circulation during engine operation.

Functions
• Replaces the engine coolant vent line
• Helps route coolant and air bleed flow correctly
• Supports cooling system bleeding and circulation
• Helps prevent trapped air within the coolant system
• Helps maintain stable engine operating temperature
• Suitable for coolant leak repair, engine service, or preventive maintenance
•  OE Match replacement for Porsche cooling system service

Why Replace This Part?
Coolant vent lines can harden, crack, swell, split, leak, or become blocked due to age, heat cycles, coolant exposure, pressure, and engine bay conditions. A damaged or restricted vent line may cause coolant loss, air pockets, overheating symptoms, coolant smell, pressure loss, or visible residue around the engine bay. Replacing the vent line helps restore correct cooling system integrity and reliable air bleeding.

When to Replace This Part
•   Coolant leak is visible from the vent line area
•   Hose or line is cracked, brittle, swollen, split, or soft
•   Cooling system pressure loss is present
•   Coolant smell or residue is noticed in the engine bay
•   Overheating or trapped air symptoms are present
•   Cooling system service or engine repair is being carried out
•   Preventive hose replacement is required during restoration or maintenance.

Where it fits on the car
This vent line fits within the engine cooling system / coolant vent circuit on applicable Porsche 958 Cayenne, 95B.1 Macan, and 970.2 Panamera models.

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

94610602661
94610602660
94610602661

The product you are viewing cross references to these numbers
Hose connector y-piece for Porsche 970 Panamera / 95B Macan - 97010657060, 7PP121237
2
Hose connector y-piece for Porsche 970 Panamera / 95B Macan
7PP121237/1
Product Information
Product Information
Hose connector y-piece.


oematch

Fits:
Porsche 970 Panamera 3.0L 2014-2016 
Porsche 95B Macan V6 Petrol 2014-2018
Porsche 95B.2 Macan 2019*



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

7PP121237
97010657060
7PP121237

The product you are viewing cross references to these numbers
Water coolant pipe with coolant hose. Porsche 95B Macan - 94610605132, 94610605131, 94610605134, 94610605133
4
Water coolant pipe with coolant hose. Porsche 95B Macan
Special Order item
94610605134
Product Information
Product Information
Water coolant pipe with coolant hose. 

porsche

Fits:
Porsche 95B Macan  S 3.0ltr - 2014 to 2018
Porsche 95B Macan GTS 3.0ltr - 2014 to 2018
Porsche 95B Macan turbo 3.6ltr - 2014 to 2018

Click 'Zoom in' for large parts diagram.
Diagram ref no 9


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

94610605134
94610605132
94610605131
94610605134
94610605133

The product you are viewing cross references to these numbers
DISPLAYING 17 to 20 (of 20 products)
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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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