Engine Block Hoses

O-Ring, 19.6 X 3.53N.
The O-Ring 19.6 x 3.53N is a genuine Porsche OEM sealing ring designed to create a tight, leak-free seal between coolant pipe connections and related engine cooling system components. Manufactured to precise dimensions, this O-ring fits into the mating groove of the pipe joint to prevent coolant loss and maintain correct system pressure. It is an essential replacement seal used on various Porsche coolant and inlet pipe applications.

Fits:

• Porsche 957 Cayenne S/GTS 4.8L 2007-10
• Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
• Porsche 958 Cayenne S V8 4.8L Petrol 400HP 2010-17
• Porsche 958 Cayenne GTS V8 4.8L Petrol 400HP 2010-17
• Porsche 958 Cayenne Turbo V8 4.8L Petrol 500HP 2010-17
• Porsche 958 Cayenne Turbo S V8 4.8L Petrol 550HP 2010-17
• Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
• Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
• Porsche 970.1 Panamera S V8 4.8L 2009-13
• Porsche 970.1 Panamera 4S V8 4.8L 2009-13
• Porsche 970.1 Panamera GTS V8 4.8L 2011-13
• Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
• Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
• Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
• Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
• Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
• Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
• Porsche 970.2 Panamera Turbo V8 Executive 2014-16
• Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16 

• Seals coolant pipe joints to prevent coolant leaks between connected pipes and fittings.
• Maintains correct cooling system pressure, which is essential for efficient engine temperature control.
  
• Creates a tight seal between metal components by compressing inside a groove when the pipe connection is tightened.

• Coolant may seep or drip from the joint where the O-ring seals the connection.
• A worn O-ring can cause slow coolant loss, leading to frequent topping up.
• Loss of coolant or system pressure can reduce cooling efficiency and contribute to overheating.
• A leaking O-ring often produces a noticeable coolant smell near the engine bay.
• The O-ring may show cracking, flattening (loss of shape), swelling, hardening or brittleness
  
• Modern Porsche models may trigger low coolant warnings if leakage occurs.

• Prevents coolant leaks at pipe connections, avoiding coolant loss and contamination.
• Maintains correct system pressure, which is essential for efficient engine cooling performance.
  
• Helps prevent engine overheating, since even a small leak can lead to low coolant levels and temperature rise.
  
• Protects surrounding components, as leaking coolant can damage hoses, sensors, connectors, and nearby engine parts.
  
• Ensures reliable long-term sealing, since old O-rings harden and flatten over time due to heat and pressure cycles.

The Vent Hose is a genuine Porsche OEM coolant vent/overflow hose designed to route coolant vapours and excess pressure within the engine cooling system. This hose helps maintain proper cooling system balance by directing overflow coolant and vented pressure to the coolant reservoir, supporting stable engine temperatures and reliable cooling performance. Manufactured to Porsche specifications, it provides precise fitment, durability, and long-term resistance to heat and coolant exposure for Porsche Panamera (970) models.

Fits:

• Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
• Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
• Porsche 970.1 Panamera S V8 4.8L 2009-13
• Porsche 970.1 Panamera 4S V8 4.8L 2009-13
• Porsche 970.1 Panamera GTS V8 4.8L 2011-13
• Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
• Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
• Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
• Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
• Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
• Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
• Porsche 970.2 Panamera Turbo V8 Executive 2014-16
• Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16  

• Vents excess pressure from the cooling system during temperature changes.
  
• Routes coolant vapours or overflow safely to the coolant expansion/reservoir tank.
  
• Helps maintain correct system pressure, which is essential for stable engine cooling.
  
• Prevents coolant from escaping into the engine bay, helping keep the cooling system sealed and efficient.

• Coolant may seep from cracks or connection points, leaving dried residue around the hose or nearby components.
• A leaking vent hose can cause gradual coolant loss, leading to frequent top-ups.
• If the vent hose cannot manage pressure correctly, the cooling system may not regulate pressure as designed.
• A noticeable coolant smell in the engine bay or near the rear of the vehicle often indicates a leak.
• Common signs include cracking or splitting, brittle or hardened rubber, loose or deformed hose ends, wet staining or discoloration.
  
• Low coolant or pressure-related issues may trigger warning messages on the dashboard.

• Prevents coolant leaks that can lead to low coolant levels and cooling system pressure loss.
  
• Maintains correct cooling system venting, allowing pressure to stabilise during heat expansion and cooling cycles.
  
• Helps avoid overheating, since coolant loss or pressure imbalance can reduce cooling efficiency.
  
• Protects surrounding components, as leaking coolant can damage hoses, wiring, sensors, and engine bay parts.
  
• Restores reliable cooling system operation, ensuring overflow coolant is routed correctly back to the reservoir.

The Vent Hose is a OE MATCH coolant vent/overflow hose designed to route coolant vapours and excess pressure within the engine cooling system. This hose helps maintain proper cooling system balance by directing overflow coolant and vented pressure to the coolant reservoir, supporting stable engine temperatures and reliable cooling performance. It provides precise fitment, durability, and long-term resistance to heat and coolant exposure for Porsche Panamera (970) models.

Fits:

• Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
• Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
• Porsche 970.1 Panamera S V8 4.8L 2009-13
• Porsche 970.1 Panamera 4S V8 4.8L 2009-13
• Porsche 970.1 Panamera GTS V8 4.8L 2011-13
• Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
• Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
• Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
• Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
• Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
• Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
• Porsche 970.2 Panamera Turbo V8 Executive 2014-16
• Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16  

• Vents excess pressure from the cooling system during temperature changes.
  
• Routes coolant vapours or overflow safely to the coolant expansion/reservoir tank.
  
• Helps maintain correct system pressure, which is essential for stable engine cooling.
  
• Prevents coolant from escaping into the engine bay, helping keep the cooling system sealed and efficient.

• Coolant may seep from cracks or connection points, leaving dried residue around the hose or nearby components.
• A leaking vent hose can cause gradual coolant loss, leading to frequent top-ups.
• If the vent hose cannot manage pressure correctly, the cooling system may not regulate pressure as designed.
• A noticeable coolant smell in the engine bay or near the rear of the vehicle often indicates a leak.
• Common signs include cracking or splitting, brittle or hardened rubber, loose or deformed hose ends, wet staining or discoloration.
  
• Low coolant or pressure-related issues may trigger warning messages on the dashboard.

• Prevents coolant leaks that can lead to low coolant levels and cooling system pressure loss.
  
• Maintains correct cooling system venting, allowing pressure to stabilise during heat expansion and cooling cycles.
  
• Helps avoid overheating, since coolant loss or pressure imbalance can reduce cooling efficiency.
  
• Protects surrounding components, as leaking coolant can damage hoses, wiring, sensors, and engine bay parts.
  
• Restores reliable cooling system operation, ensuring overflow coolant is routed correctly back to the reservoir.