058 103 493A – Breather Hose (OEM)

Description

The 058 103 493A breather hose is a critical component of the engine’s crankcase ventilation system. This specialized pipe routes blow-by gases from the crankcase back into the intake system to be burned during combustion. By managing these gases, the hose helps regulate internal engine pressure.

Hard plastic vacuum pipes and breather lines are common in modern engine bays, but they are susceptible to damage. Over time, constant exposure to extreme engine heat and varying weather conditions weakens the plastic. Consequently, the tubing becomes brittle and prone to cracking or snapping.

Why the 058 103 493A Breather Hose Matters

Maintaining a sealed PCV (Positive Crankcase Ventilation) system is essential for engine health and emissions compliance. When the 058 103 493A breather hose cracks, it creates a significant vacuum leak. This allows unmetered air to enter the engine, which disrupts the air-fuel mixture and leads to poor drivability.

Replacing a damaged breather pipe with an OEM-quality unit ensures the crankcase can breathe correctly. Restoring this connection eliminates vacuum leaks and helps maintain the internal pressure balance required to protect engine seals.

Signs Your Breather Hose Needs Replacing

Monitor your vehicle for these symptoms of a failing ventilation pipe:

• Rough or erratic engine idle.

• Check engine light (CEL) with lean mixture or trim codes.

• Visible cracks, breaks, or oil seepage on the plastic tubing.

• Hissing sounds coming from the engine bay during operation.

• Sudden decrease in fuel economy or engine stumbling.

• Brittle texture that snaps easily when handled during other maintenance.

If you observe oil residue around the breather connections, it usually indicates a hairline crack or a failed seal. Addressing these issues early prevents oil sludge buildup and further vacuum-related performance problems.

Key Features

• OE Part Number: 058 103 493 A

• Function: Transfers crankcase vapors to the intake system to regulate engine pressure.

• Construction: High-grade, heat-resistant plastic designed for engine bay environments.

• Direct Fit: Molded to factory specifications for a secure and simple installation.

• Direct Replacement: Replaces the original factory hose without modifications.

• Quality Standard: OEM-quality design ensures reliable performance and a proper seal.

Compatibility & Applications

Always verify fitment by VIN before ordering.

Cross Reference Numbers

• 058 103 493 A

• 058103493A

• 058-103-493-A

• 058.103.493.A

Additional information