Bremmen Parts BMW Intake Boots & Hoses for BMW 4 Series F32 (2014+)

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The intake boot provides a pathway for air from the air flow sensor to the intake manifold. On most BMWs the boot is made of rubber with an accordian shape that allows the engine to shift and vibrate. As with any rubber component the rubber can dry out and crack and that can lead to serious running and drivability issues. A crack in the boot means that air is entering the engine that is not being monitored by the airflow sensor. The engine computer relies on data from the airflow sensor to set the fuel mixture in the engine. Excess unmetered air can result in lean condition faults, rough running, misfires, and other performance issues. For misfire and lean condition faults, check your intake boots first.

As an alternative to the original rubber, we also offer silicone boots that are both stronger and last longer with a 4-layer silicone design. Samco silicone boots can also decrease your BMW's intake turbulence and restriction by replacing the accordian design with a smoothed internal surface. Samco boots are also perfect as part of a kit to eliminate the factory traction control system (sometimes called an ASC delete boot).
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Bremmen PCV / CCV Breather Hose
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Bremmen Parts - Corporate Logo
T#:36032356
Part#: 11127599753
In Stock
Sale - Save 20% $ 47.99

This product was last offered at the strikethrough price on
05-03-2026

$ 38.34 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 47.99

This product was last offered at the strikethrough price on
05-03-2026

$ 38.34 USD
Free Shipping on orders $49 and up
BMW B46 B48 Crankcase Vent Hose - (NO LONGER AVAILABLE)
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Bremmen Parts - Corporate Logo
T#:28138187
Part#: 11157623745
In Stock
Sale - Save 15% $ 52.99

This product was last offered at the strikethrough price on
05-03-2026

$ 45.04 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 52.99

This product was last offered at the strikethrough price on
05-03-2026

$ 45.04 USD
Free Shipping on orders $49 and up

BMW B46 B48 Crankcase Vent Hose

Looking for a high-quality crankcase vent hose replacement for your BMW B46 or B48 engine? Turner Motorsport presents the BMW B46 B48 Crankcase Vent Hose. This vent hose ensures efficient ventilation of the crankcase, preventing pressure buildup and maintaining optimal engine performance. Crafted with durable materials and precision engineering, it offers the following benefits:

  • Efficient ventilation of the crankcase
  • Prevents pressure buildup for optimal engine performance
  • Crafted with durable materials for long-lasting use
  • Compatible with BMW B46 and B48 engines for easy installation
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