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Rein BMW Intake Boots & Hoses

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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Rein PCV / CCV Breather Hose

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T#:4126651

Part#: 11127599753

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06-29-2026

$ 43.69 USD

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Quality Replacement Breather Hose for N55 Engines.

Rein Silicone Vacuum Hoses - Blue - 5 Meters (3.5mm ID)

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T#:379090

Part#: 11731259996-5

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03-17-2026

$ 32.29 USD

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This silicone hose has an inner diameter of 3.5mm and outer diameter of 7.5mm, is blue in color, and arrives in a 5 Meter section that can be cut down to size.

Rein Cloth Braided Fuel/Vacuum Hose - Black - 5 Meter

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T#:378470

Part#: N203531-5

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06-09-2026

$ 59.84 USD

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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID

Intake Boot

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T#:586997

Part#: 13541740073

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05-29-2026

$ 29.44 USD

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Rein Silicone Vacuum Hoses - Black - 5 Meters (3.5mm ID)

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T#:51848535

Part#: 51731257971-5M

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$ 36.73 USD

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This silicone hose has an inner diameter of 3.5mm and outer diameter of 7.5mm, is black in color, and arrives in a 5 Meter section that can be cut down to size.

Rein - Crankcase Vent Hose - F23 230i, G30 530eX, F33 430i

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T#:34080725

Part#: 11157623745

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$ 41.22 USD

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Rein - Crankcase Vent Hose is a high-quality replacement part specifically designed for BMW models to maintain proper engine ventilation. This vent hose is essential for regulating air pressure within the crankcase, preventing pressure build-up and reducing the risk of oil leaks or sludge formation. Engineered to meet or exceed OEM standards, the Rein - Crankcase Vent Hose ensures optimal engine performance and longevity. Available through Turner Motorsport, this direct-fit replacement part offers an easy installation solution for BMW owners looking to maintain their engine’s health.

Designed for BMW models, ensuring perfect fit and compatibility
Prevents pressure build-up, reducing the risk of oil leaks and engine damage
Helps reduce oil sludge formation, promoting cleaner engine operation
Manufactured from durable, high-quality materials for long-lasting performance
Direct-fit replacement for hassle-free installation without modifications
Meets or exceeds OEM specifications for superior reliability and performance

Keep your BMW’s engine running efficiently and smoothly with the Rein - Crankcase Vent Hose, a crucial component for maintaining proper crankcase ventilation.

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Air Intake Boot

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T#:402026

Part#: 13711247031

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06-29-2026

$ 20.89 USD

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Connects to throttle body

Rein Air Intake Boot - E46, Z3

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T#:379640

Part#: 13541438761

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06-29-2026

$ 27.54 USD

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Connects mass airflow sensor to air intake tube

Rubber Intake Boot

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T#:594358

Part#: 13717541069

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$ 28.49 USD

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This boot is a common point of failure as models age. Brittle and cracked intake bellows allow unfiltered air to bypass the air filter, potentially causing premature engine wear. Attaches to the filtered air duct to supply air to your intake.

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Rubber Intake Boot

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T#:586167

Part#: 13717552223

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$ 32.29 USD

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OEM Rein Intake Boot - E83 X3 M54

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T#:386412

Part#: 13543412292

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Rubber intake boots are susceptible to cracking over time. This can lead to rough idling issues and lost performance. Replace your intake boot with an OEM Rein intake boot to save cash without compromising quality!

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Throttle Body Boot

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T#:591895

Part#: 13541440102

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$ 21.11 USD

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Rubber Boot

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T#:586182

Part#: 13717555784

Ships on Jul 21, 2026

Sale - Save 5% $ 84.99

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$ 80.74 USD

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OEM Rein Air Hose - E36 M42 1.8L

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T#:7207

Part#: 13411739650

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$ 29.44 USD

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The rubber hose connects the idle air control valve to the intake boot.

This item fits the following BMW Chassis:
E36

Fits BMW Engines including:
M42

Rein Cloth Braided Fuel/Vacuum Hose - Black - 1 Meter

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T#:363139

Part#: N203531-1

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06-29-2026

$ 12.34 USD

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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID

Rein Air Intake Boot - E46, Z3

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T#:555163

Part#: 13541705209

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06-29-2026

$ 17.09 USD

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Connects directly to the MAF

Rein Silicone Vacuum Hoses - Blue - 3 Feet

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T#:378472

Part#: 11731259996-1

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$ 5.80 USD

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$ 5.80 USD

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Replace your cracked or frayed vacuum lines. 3.5mm

Vent Hose

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T#:9803973

Part#: 11157605186

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$ 33.24 USD

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Rein Cloth Braided Fuel/Vacuum Hose - Black - 20 Meter

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T#:378471

Part#: N203531-20

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Sale - Save 5% $ 363.52

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06-29-2026

$ 345.34 USD

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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID

Rein Fuel Tank Breather Hose - BMW FXX

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T#:52516267

Part#: FBH0118

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$ 39.89 USD

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Restore your BMW's fueling system to peak performance with the Rein FBH0118 Fuel Tank Breather Hose.

Rubber Intake Boot

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T#:599032

Part#: 13721477839

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$ 36.09 USD

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Rein Silicone Vaccum Hose - Black - 65 Feet

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T#:378475

Part#: 5173125797120BLK

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$ 166.75 USD

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Replace your cracked or frayed vacuum lines. 3.5mm

Intake Boot

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T#:402080

Part#: 13547505838

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$ 18.99 USD

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Connects to the mass airflow meter

OEM Rein Air Intake Boot - E46 Z3

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T#:386410

Part#: 13541438759

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$ 14.24 USD

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This intake boot connects directly to the throttle body. Susceptible to cracking over time, this boot could be the cause of a check engine light, showing that the engine is running lean, and rough idle issues.

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Rein Breather Hose - Crankcase Ventilation

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T#:17771604

Part#: 11157595188

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$ 39.89 USD

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Connecting tube of the crankcase ventilation vent pipe, located in the middle, between the left and right vent pipes.

Intake Boot

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T#:402027

Part#: 13541740931

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$ 18.04 USD

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Intake boot for the air flow meter

Rein Air Flow Meter Boot - E83 - M54

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T#:53750111

Part#: 13543412291

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$ 53.04 USD

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Replace a Torn or Cracking Rubber MAF Intake with this OE Level Replacement from Rein. Restoring Proper Intake Flow and Performance

Intake Boot

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T#:591892

Part#: 13541435625

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$ 19.94 USD

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Boot that attaches to the mass air sensor

Rein Air Intake Boot - E39, E46, Z3

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T#:362650

Part#: 13541435627

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$ 14.24 USD

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Connects directly to the throttle body

Intake Boot

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T#:594356

Part#: 13541703726

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$ 30.81

This product was last offered at the strikethrough price on
06-15-2026

$ 22.99 USD

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$ 30.81

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This is the rubber intake boot that the Mass Air Meter clamps to. If your boot has rotted or deteriorated it will cause a rough idle and poor performance.

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