Rein BMW Intake Parts for BMW 5 Series E39 (1996-2003)

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One thing drivers and cars have in common is the need for air. Induction systems provide a third of the critical necessities for engines to run, so giving your BMW the best way to breathe is paramount in engine performance. If you need to replace your filter, recharge your reusable pod filter, or upgrade your intake, turbos, or intercooler parts, everything can be found below. We have OEM replacements as well as aftermarket performance upgrades to keep your BMW pristine, powerful, and functioning at peak efficiency.

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Rein Cloth Braided Fuel/Vacuum Hose - Black - 5 Meter
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T#:378470
Part#: N203531-5
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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID
Rein Silicone Vacuum Hoses - Blue - 5 Meters (3.5mm ID)
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T#:379090
Part#: 11731259996-5
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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 - Suction Pump - E39 M54 2.5l, E46 330Ci
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T#:34080767
Part#: 11617545382
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Suction Pump is a crucial component for maintaining optimal vacuum pressure within the engine and brake systems of BMW models. This high-performance part ensures proper vacuum regulation, enhancing overall engine efficiency and brake function. Designed to meet or exceed OEM standards, the Suction Pump provides a precise fit and dependable performance for long-term durability. Available through Turner Motorsport, this pump is an ideal replacement part for BMW owners looking to restore the reliability and performance of their vehicle.

  • Designed specifically for BMW models to ensure a perfect fit
  • Maintains proper vacuum pressure for engine and brake system efficiency
  • Improves overall vehicle performance and brake response
  • Manufactured from durable, high-quality materials for long-lasting use
  • Direct-fit replacement for easy installation
  • Meets or exceeds OEM specifications for reliable performance
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OEM Rein Intake Air Adjustment Unit/DISA Valve - M54 3.0L
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T#:402121
Part#: 11617544805
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03-05-2026

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A bad DISA valve can cause a variety of issues, from a loud racket in the engine bay, hesitation at low rpm and a rough idle with lean codes.

If the valve is making a loud noise, we recommend replacing it as soon as possible. It is possible for the pin holding the flap to be sucked into the motor causing serious damage.

Very easy to replace, just need to undo the 4 bolts holding it to the intake manifold.

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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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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.
Crankcase Pressure Regulator Valve
For vehicles with production date up to 09/1998
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T#:594300
Part#: 11151703484
In Stock at Vendor
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$ 48.44 USD
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BMW has an issue with oil separators freezing in cold weather if the engine is not fully warmed up during driving. Common symptoms are a howling noise followed by oil leaks.

OEM Rein Intake Air Adjustment Unit/DISA Valve - M54 2.5L
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T#:402120
Part#: 11617544806
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$ 234.64 USD
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Air adjustment unit controls the path of the air in the intake manifold, allowing either a shorter or longer runner length. A common source of trouble causing low RPM sluggishness and accompanied by a clicking sound from the engine bay.
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Rein Crankcase Breather Valve | BMW E39 E52 S62 5.0L Engine
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T#:38195432
Part#: 11151406788
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$ 32.47 USD
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Rein Crankcase Breather Valve | BMW E39 E52 S62 5.0L Engine is a high-quality replacement designed to address common crankcase ventilation issues in BMW engines. A failing breather valve can lead to excessive oil consumption, vacuum leaks, and even freezing in colder temperatures, causing performance issues and potential engine damage. This direct-fit replacement effectively regulates the removal of oil vapors, preventing system failures and ensuring smooth engine operation. For optimal results, it is recommended to replace all related oil separator components simultaneously.

  • Prevents oil separator freezing and vacuum leaks in cold weather
  • Ensures proper crankcase ventilation to avoid excessive oil consumption
  • Direct-fit replacement for BMW E39 and E52 S62 5.0L engines
  • Helps maintain optimal engine performance and efficiency
  • Manufactured to meet or exceed OEM quality standards
  • Recommended to replace with other oil separator components for long-term reliability
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Crankcase Vent Valve - Rein - BMW E39 M5 E52 Z8
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T#:38229086
Part#: 11151406789
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This product was last offered at the strikethrough price on
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$ 42.74 USD
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Crankcase Vent Valve - Rein - BMW E39 M5 E52 Z8 is a crucial component for maintaining proper crankcase ventilation and preventing harmful oil buildup in the engine. Over time, the vent valve can become clogged with oil, leading to excessive crankcase pressure, poor engine performance, and increased carbon deposits. A failing valve can result in rough idling, misfires, and blue smoke from the exhaust. Replacing the crankcase vent valve at regular intervals ensures optimal engine efficiency and longevity.

  • Prevents oil-rich vapors from entering the intake system
  • Reduces the risk of carbon buildup and engine misfires
  • Direct-fit replacement for BMW E39 M5 and E52 Z8 models
  • Ensures proper crankcase ventilation for optimal performance
  • Helps eliminate excessive crankcase pressure and oil leaks
  • Manufactured to meet or exceed OEM quality standards
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Rein - Brake Booster Check Valve E38 740iL, E52 Z8 Alpina
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T#:33980399
Part#: 11611440135
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Brake Booster Check Valve by Rein is an essential part of your vehicle’s braking system, designed to maintain proper vacuum pressure for enhanced brake performance. This valve ensures that the brake booster retains sufficient vacuum pressure to deliver consistent, responsive braking, even in challenging conditions. Built from durable, high-quality materials, the Brake Booster Check Valve by Rein is engineered to withstand high temperatures and provide long-lasting reliability. Available at Turner Motorsport, this check valve is a direct fit replacement, ensuring easy installation and compatibility with your vehicle’s OEM specifications.

  • Maintains optimal vacuum pressure, ensuring consistent brake performance
  • Improves braking response, enhancing safety and vehicle control
  • Constructed from high-quality materials for durability and long-term use
  • Direct fit replacement, allowing for easy installation and perfect compatibility with OEM standards
  • Supports the overall efficiency of the brake booster system, ensuring reliable braking in all conditions

Turner Motorsport offers the Brake Booster Check Valve by Rein as a dependable solution to enhance your vehicle's braking system, ensuring safe and efficient performance.

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BMW Intake Air Adjustment Unit/DISA Valve | E39 E46 Z3 - M52tu 2.5L /...
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T#:39059265
Part#: 11611440049
In Stock
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This product was last offered at the strikethrough price on
06-29-2026

$ 154.97 USD
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BMW Intake Air Adjustment Unit/DISA Valve | E39 E46 Z3 - M52 2.5L / 2.8L Engine is designed to regulate airflow into the engine, optimizing performance and fuel efficiency. A faulty DISA valve can cause a variety of issues such as loud noises from the engine bay, hesitation at low RPM, rough idling, and lean codes. If you notice any unusual noise from the valve, it’s important to replace it immediately to prevent further damage. The pin holding the flap can become dislodged and sucked into the motor, causing potentially severe engine damage.

  • Ensures proper airflow into the engine for smoother performance
  • Fixes issues such as rough idle, hesitation, and lean codes
  • Prevents costly engine damage by replacing a faulty DISA valve
  • Easy installation with just four bolts to remove and replace the valve
  • Compatible with BMW E39, E46, and Z3 models with M52 2.5L / 2.8L engines
  • Durable design for long-lasting, reliable performance

Replace your faulty DISA valve to restore engine performance and prevent further damage with this easy-to-install, high-quality replacement part.

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Rein Cloth Braided Fuel/Vacuum Hose - Black - 1 Meter
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T#:363139
Part#: N203531-1
In Stock
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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 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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Replace your cracked or frayed vacuum lines. 3.5mm
Intake Boot
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T#:402080
Part#: 13547505838
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Connects to the mass airflow meter
Rein Silicone Vaccum Hose - Black - 65 Feet
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T#:378475
Part#: 5173125797120BLK
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Replace your cracked or frayed vacuum lines. 3.5mm

Intake Boot
For vehicles with production date up to 09/1998 and with secondary throttle body
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T#:402027
Part#: 13541740931
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Intake boot for the air flow meter

Rein Cloth Braided Fuel/Vacuum Hose - Black - 20 Meter
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T#:378471
Part#: N203531-20
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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID
Intake Boot
For vehicles with production date from 09/1998
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T#:591892
Part#: 13541435625
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Boot that attaches to the mass air sensor

Rein Air Intake Boot - E39, E46, Z3
For vehicles with production date from 09/1998
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T#:362650
Part#: 13541435627
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Connects directly to the throttle body
Intake Boot
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T#:594356
Part#: 13541703726
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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.