Rein 9497534 Volvo Crankcase Breather Hose (Valve Cover to Oil Trap)

The Rein 9497534 is a high-quality replacement crankcase breather hose designed for Volvo 5-cylinder engines. This hose connects the oil trap to the cylinder head, serving as a critical component in the vehicle's Positive Crankcase Ventilation (PCV) system.

Function and Importance:

The PCV system allows pressure to escape from the crankcase in a controlled manner, venting positive pressure caused by engine blow-by gas from the combustion event that leaks past the pistons. This blow-by gas is routed back into the intake air stream thereby reducing the emission of unburned hydrocarbons into the atmosphere.

Key Features:

• Designed to be a direct replacement for OE hoses and assemblies
• Identical to OE predecessors, from size and shape to thermoplastic quick connect fittings
• Manufactured to OE quality standards for reliable performance
• Replaces superseded Volvo part number 30713469

Why Replace:

Damaged crankcase breather hoses are a common source of engine vacuum leaks and often a source of check engine lights in modern vehicles. Regular inspection and replacement of deteriorated PCV hoses helps maintain proper engine performance and emissions control.

Rein Automotive specializes in OE-quality replacement parts including coolant hoses, suspension components, and essential maintenance items for European vehicles. This crankcase breather hose provides a cost-effective alternative to genuine OEM parts without sacrificing quality or fit.