BMW E28 Valve Cover Breather Hose – Genuine & Durable Replacement

Editorial Team Mar 08, 2026

The BMW E28, a timeless icon of performance and design, demands quality maintenance to keep running smoothly. Among the often overlooked components is the valve cover breather hose—critical for regulating airflow and preventing vacuum leaks. Choosing the right replacement ensures engine efficiency and protects against corrosion and wear.

Bmw E28 Valve Cover Breather Hose at Shirley Pierson blog
Bmw E28 Valve Cover Breather Hose at Shirley Pierson blog Source: storage.googleapis.com

Understanding the Role of the Valve Cover Breather Hose

The valve cover breather hose acts as a vital link in your E28’s engine ventilation system. Its primary function is to allow safe passage of air into and out of the valve cover, equalizing pressure and preventing vacuum buildup. When degraded, this hose can cause rough idling, check engine lights, and even damage sensitive engine sensors. Using a high-quality, air-resistant breather hose preserves engine health and supports consistent performance.

Bmw E28 Valve Cover Breather Hose at Shirley Pierson blog
Bmw E28 Valve Cover Breather Hose at Shirley Pierson blog Source: storage.googleapis.com

Why BMW E28 Owners Need Genuine Breather Hoses

Not all breather hoses are created equal. Aftermarket alternatives often use inferior materials that degrade quickly under engine heat and moisture exposure. Genuine BMW E28 valve cover breather hoses are engineered with heat-resistant rubber and reinforced construction to withstand the rigors of daily driving. They meet OEM specifications for fitment, pressure tolerance, and durability—ensuring seamless integration with your vehicle’s system and long-term reliability.

Bmw E28 Valve Cover Breather Hose at Shirley Pierson blog
Bmw E28 Valve Cover Breather Hose at Shirley Pierson blog Source: storage.googleapis.com

Key Benefits of Quality Breather Hose Replacement

Upgrading to a premium breather hose brings multiple advantages: improved engine airflow for better combustion efficiency, reduced risk of vacuum leaks, protection against moisture-induced corrosion, and enhanced engine longevity. By maintaining proper ventilation, you support optimal performance and avoid costly repairs. A quality hose also installs easily and maintains consistent air pressure—critical for modern E28 models with sensitive electronic controls.

Bmw E28 Valve Cover Breather Hose at Shirley Pierson blog
Bmw E28 Valve Cover Breather Hose at Shirley Pierson blog Source: storage.googleapis.com

Investing in a genuine BMW E28 valve cover breather hose is a smart, proactive step for any E28 owner. It ensures smooth engine operation, prevents hidden damage, and supports your vehicle’s peak performance. Choose quality over convenience—your engine will thank you with reliability and power for years to come.

Bmw E28 Valve Cover Breather Hose at Shirley Pierson blog
Bmw E28 Valve Cover Breather Hose at Shirley Pierson blog Source: storage.googleapis.com

Original BMW breather hose connects the valve cover to the intake plenum on E28 M5 and E24 M6 models. 11151306958 - Genuine BMW - Engine Crankcase Breather Hose. If uncertain, reach out to us for assistance.

Bmw E28 Valve Cover Breather Hose at Shirley Pierson blog
Bmw E28 Valve Cover Breather Hose at Shirley Pierson blog Source: storage.googleapis.com

Provide photos of the defect (if possible) along with an explanation of its nature. BMW M5 Sedan E28 3.5L L6 Breather Hose - Valve Cover to Air Accumulator Part Number 11151306958 Quantity needed 1 Manufacturer GENUINE BMW Manufacturer Part# 11. The rubber breather pipes used a number of BMW applications are prone to cracking.

Bmw E28 Valve Cover Breather Hose at Shirley Pierson blog
Bmw E28 Valve Cover Breather Hose at Shirley Pierson blog Source: storage.googleapis.com

Over the years, the engine heat and weather can take their toll and either weaken or cause breaks in these hoses. Genuine OEM Engine Crankcase Breather Hose Valve Cover to Air Accumulator For BMW E24 E28 M5 M6 1987. I've done some searching but can't find an answer.

My valve cover has an outlet for a breather hose, but I can' find out where it's supposed to terminate. Part number on realoem is 11151278804. ECS Tuning calls it a crankcase ventilation hose.

Any ideas where this it supposed to conect? Thanks. BMW Crankcase Breather Hose - Genuine BMW 11157559528 128i, 328i, 328i xDrive, 328xi, 528i, & more. This is the engine PCV vent hose that connects to the valve cover.

A cracked hose can lead to rough idle and poor running. Replace your dry or cracked hose today.1987-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix M3 12/1986. The BMW crankcase vent hose is part of a ventilation system that properly removes the natural buildup of gases from the crankcase.

However, your hose can become clogged or damaged over time, thereby compromising the performance of the engine. That's why BMW provides this replacement crankcase vent hose. Silicone Valve Cover Breather Hose - M20 $ 16.00 Each Clamps Yes (+$ 4.00) 1x Silicone Valve Cover Breather Hose - M20 $16.00 Subtotal $16.00 Add to cart.