BMW Intake Boots & Hoses for BMW 5 Series E28 (1982-1988)

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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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Rein Cloth Braided Fuel/Vacuum Hose - Black - 5 Meter
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Rein - Corporate Logo
T#:378470
Part#: N203531-5
In Stock
$ 59.99 USD
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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID
Genuine BMW Breather Hose - E30 E34 E28, M20
For vehicles with production date from 12/1986
Genuine BMW - Corporate Logo
T#:406085
Part#: 11151708801
In Stock
$ 26.99 USD
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$ 26.99 USD
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Universal Throttle Body Coupler - 45 Degree 2.5" (63.50mm) ...
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ECS - Corporate Logo
T#:382969
Part#: 003402ECS03A-16
In Stock
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$ 22.79 USD
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$ 22.79 USD
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Elevate your BMW project with ECS Tuning silicone couplers and elbows, providing a high-quality, precision-engineered solution for various applications. Whether you're installing an intercooler, fabricating a custom intake system, or pursuing other automotive projects, ECS Tuning delivers reliable performance and durability. Trust ECS Tuning to meet your needs and enhance your BMW project.

  • High-quality silicone couplers and elbows for BMW projects
  • Precision-engineered for reliability and performance
  • Versatile solution for intercooler installations, custom intake systems, and more
  • Ensures durability and longevity for your automotive projects
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Rein Silicone Vacuum Hoses - Blue - 15 Feet, 3.5mm
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Rein - Corporate Logo
T#:379090
Part#: 11731259996-5
In Stock
$ 35.99 USD
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$ 35.99 USD
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Replace your cracked or frayed vacuum lines. 3.5mm

Genuine BMW - Corporate Logo
T#:367864
Part#: 13711261370
In Stock
4% off MSRP $ 72.99
$ 69.99 USD
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4% off MSRP $ 72.99
$ 69.99 USD
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Genuine BMW - Corporate Logo
T#:42839
Part#: 13711287327
In Stock
12% off MSRP $ 48.99
$ 42.99 USD
Limited Qty Sale
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12% off MSRP $ 48.99
$ 42.99 USD
Limited Qty Sale
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Replace your cracked or damaged intake air boot to maintain proper performance and engine longevity. This Genuine BMW intake hose directs air into the factory air box assembly from outside.

This item fits the following BMWs:
2/1983-1988 E28 BMW 524td 528e 533i 535i 535is M5
2/1983-1989 E24 BMW 633csi 635csi M6
2/1983-1987 E23 BMW 733i 735i
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Genuine BMW Air Intake Boot - E28 528e E30 325e 325es
For vehicles with production date between 03/1987 and 11/1988
Genuine BMW - Corporate Logo
T#:7292
Part#: 13711707785
Ships Jul 1, 2025
$ 60.99 USD
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$ 60.99 USD
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Genuine BMW Rubber Boot -
This item fits the following BMW Chassis:
E30

Fits BMW Engines including:
M20


Genuine BMW Rubber Boot - 528e, E30 325e
Fits up to 03/87 production date
Genuine BMW - Corporate Logo
T#:367865
Part#: 13711285479
Ships Jul 1, 2025
$ 108.99 USD
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$ 108.99 USD
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Plastic Vacuum Tubing Kit - black - 8 Feet
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ECS - Corporate Logo
T#:360488
Part#: 5097T321-8FT-A
In Stock
Sale - Save 30% $ 35.99
$ 25.19 USD
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$ 25.19 USD
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Ensure optimal engine performance with the replacement of your vacuum system hoses. The vacuum system plays a crucial role in the engine's functionality, transforming it into an efficient pump that influences air-fuel mixture and combustion. Damaged vacuum hoses can lead to various performance issues, from rough idle to difficulties starting the engine. If you're experiencing these issues, it's time to upgrade to this plastic hose with a 2.3mm inner diameter. The hose is black, arrives in an 8-foot section, and can be easily cut to the desired size for a perfect fit.

Key Features:

  • Engine Optimization: Replacing old hoses ensures the vacuum system operates at peak performance.
  • 2.3mm Inner Diameter: Designed to meet specific engine requirements.
  • Black Color: Blends seamlessly with the engine components.
  • 8-Foot Section: Provides flexibility to cut the hose to the required length.
  • Easy Installation: Upgrade without hassle for improved engine efficiency.

Upgrade your vacuum system with this high-quality plastic hose, addressing performance issues and ensuring your engine runs smoothly.

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Genuine BMW - Corporate Logo
T#:37535
Part#: 11747797129
In Stock
Sale - Save 7% $ 39.99
$ 37.15 USD
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Sale - Save 7% $ 39.99
$ 37.15 USD
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Genuine BMW Vacuum Hose Black - 3,5X2,0
Genuine BMW - Corporate Logo
T#:7061
Part#: 11727545323
In Stock
Sale - Save 7% $ 39.99
$ 37.15 USD
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$ 37.15 USD
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GENUINE BMW ENGINE VACUUM HOSE BLACK 11727545323


Genuine BMW Intake Hose - 528e, E30 325, E30 325es, E30 325e ...
For vehicles with production date up to 03/1987
Genuine BMW - Corporate Logo
T#:7039
Part#: 11631278051
Ships in 1-2 days
4% off MSRP $ 24.99
$ 23.99 USD
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4% off MSRP $ 24.99
$ 23.99 USD
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Genuine BMW Hose -
This item fits the following BMW Chassis:
E30

Fits BMW Engines including:
M20

Genuine BMW - Corporate Logo
T#:7222
Part#: 13541272472
Ships Jul 2, 2025
$ 37.99 USD
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GENUINE BMW FUEL PREPARATION RUBBER BOOT 13541272472.--

This item fits the following BMWs:
BMW 5 Series - 533i
BMW 6 Series - 633cSi
BMW 7 Series - 733i

--. Fits BMW Engines including:
M30

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Febi Rubber Boot - E28, E30
Fits up to 03/87 production date
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Febi - Corporate Logo
T#:381834
Part#: 13711285479
Special Order: No Guaranteed ETA
$ 45.99 USD
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$ 45.99 USD
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90 degree elbow that connects to the MAF

1 Meter Vacuum Hose (3.5x7.5)
We Price Match - Give Us A Call or Chat!
Continental - Corporate Logo
T#:9448313
Part#: 11727545323-1M
In Stock
$ 7.99 USD
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Used in many locations on the engine

Forge - Corporate Logo
T#:370915
Part#: VC03R
In Stock
$ 14.99 USD
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Upgrade Your BMW with Forge 3MM Silicone Vacuum Hose - Red - 9 Feet

Upgrade your BMW's vacuum system with the Forge 3MM Silicone Vacuum Hose in Red, a high-quality solution designed for optimal performance and durability. This 9-foot silicone vacuum hose provides superior flexibility and resistance to extreme temperatures, making it ideal for various automotive applications. Engineered with precision, it ensures reliable vacuum pressure for efficient engine operation and component functionality. Whether you're replacing worn-out hoses or customizing your BMW's vacuum setup, the Forge Silicone Vacuum Hose offers reliability and performance you can trust.

  • High-quality silicone construction for durability
  • Superior flexibility for easy installation
  • Resistant to extreme temperatures
  • Ensures reliable vacuum pressure for efficient engine operation
  • Ideal for various automotive applications

Car suffering from vacuum leaks? This vacuum hose has a 3mm inner diameter. 

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Mishimoto - Corporate Logo
T#:25241773
Part#: MMCP-3035B
In Stock
8% off MSRP $ 13.00
$ 11.99 USD
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8% off MSRP $ 13.00
$ 11.99 USD
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This transition coupler is constructed of high-quality heat resistant silicone, making it useful for fitting air intakes, intercooler piping, and more.

12.0" 3.75mm (5/32") ID Black Silicone Vacuum Hose ...
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ECS - Corporate Logo
T#:19825269
Part#: 2101
In Stock
Sale - Save 40% $ 31.99
$ 19.19 USD
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Sale - Save 40% $ 31.99
$ 19.19 USD
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Forge - Corporate Logo
T#:370917
Part#: VC04
In Stock
$ 11.99 USD
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Car suffering from vacuum leaks? This vacuum hose has a 4mm inner diameter. 

Silicone Coupler - Straight 3" (76.20mm)
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ECS - Corporate Logo
T#:376702
Part#: 003402ECS01A-06
In Stock
Sale - Save 40% $ 28.99
$ 17.39 USD
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Sale - Save 40% $ 28.99
$ 17.39 USD
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Silicone Coupler - Straight 3" ID (76.20mm) x 3" L

No matter the project, ECS Tuning silicone couplers and elbows offer a high-quality, precision-engineered solution to your needs. Whether you're installing an intercooler, fabricating a custom intake system, or whatever else you can dream up, ECS Tuning has you covered.

  • High-quality silicone construction for durability
  • Precision-engineered design ensures a perfect fit
  • Versatile solution for various automotive projects
  • Enhances performance and reliability
  • Compatible with BMW and other vehicles
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Forge - Corporate Logo
T#:558490
Part#: FORGEVAC
In Stock
Starting at $ 14.99 USD
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Starting at $ 14.99 USD
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Car suffering from vacuum leaks? Choose from a 4mm, 5mm, or 6mm diameter vacuum hose from Forge to fix your leak and bring your BMW back to life.
Conti Tech Vacuum Hose (3.5x7.5) - 1 Meter
We Price Match - Give Us A Call or Chat!
Continental - Corporate Logo
T#:374693
Part#: 11727545323
In Stock
$ 7.99 USD
Free Shipping on orders $49 and up
Used in many locations on the engine
BMW & MINI Silicone Coupler - Straight 2.38" (60.33mm) ...
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ECS - Corporate Logo
T#:376708
Part#: 003402ECS01A-03
In Stock
Sale - Save 40% $ 28.99
$ 17.39 USD
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Sale - Save 40% $ 28.99
$ 17.39 USD
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Upgrade your BMW or MINI with the BMW & MINI Silicone Coupler - Straight 2.38" (60.33mm). This high-quality silicone coupler is designed to provide a secure and leak-free connection for your vehicle's intake or cooling system. Engineered for durability and flexibility, it ensures optimal performance under various conditions. With its straight design and precise dimensions, this silicone coupler offers easy installation and a perfect fit for your BMW or MINI.

  • Provides a secure and leak-free connection
  • Engineered for durability and flexibility
  • Straight design for easy installation
  • Perfect fit for BMW and MINI vehicles
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Rein Silicone Vacuum Hoses - Blue - 3 Feet
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Rein - Corporate Logo
T#:378472
Part#: 11731259996-1
In Stock
$ 5.99 USD
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Replace your cracked or frayed vacuum lines. 3.5mm
Rein Cloth Braided Fuel/Vacuum Hose - Black - 1 Meter
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Rein - Corporate Logo
T#:363139
Part#: N203531-1
In Stock
$ 11.99 USD
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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID
Silicone Coupler - Straight 3 5/8" (92mm)
10X Entries For Our Spin To Win Sweepstakes!
ECS - Corporate Logo
T#:377483
Part#: 003402ECS01A-07
In Stock
Sale - Save 88% $ 38.99
$ 4.79 USD
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Sale - Save 88% $ 38.99
$ 4.79 USD
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ECS Silicone Coupler

Upgrade your BMW with the ECS Silicone Coupler. This straight 3 5/8" ID (92mm) x 3" L coupler is designed to enhance your vehicle's performance and durability. Crafted from high-quality silicone, it ensures long-lasting reliability and superior performance.

  • Enhances vehicle performance
  • Durable construction for long-lasting reliability
  • Specifically designed for BMW vehicles
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Genuine BMW - Corporate Logo
T#:6533
Part#: 07129952104
In Stock
Sale - Save 15% $ 2.99
$ 2.55 USD
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Sale - Save 15% $ 2.99
$ 2.55 USD
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GENUINE BMW HOSE CLAMP 07129952104

Forge - Corporate Logo
T#:370918
Part#: VC04R
In Stock
$ 15.99 USD
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Enhance Engine Performance with Silicone Vacuum Line

Upgrade your car's vacuum system with the Silicone Vacuum Line, a vital component that significantly impacts engine performance. Engineered to resist heat and contaminants, this silicone hose promises exceptional durability, ensuring prolonged and reliable operation.

Featuring an inner diameter of 4mm and a vibrant red color, this silicone hose arrives in a 9-foot section, offering the flexibility to customize lengths as needed. Damaged vacuum hoses can lead to various performance issues, from rough idling to engine starting problems. Promptly replace worn-out hoses to optimize your vehicle's overall performance.

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46.5mm To 61.0mm Silicone Coupler - Each
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ECS - Corporate Logo
T#:28570863
Part#: 017623ECS08A
In Stock
Sale - Save 40% $ 30.99
$ 18.59 USD
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Sale - Save 40% $ 30.99
$ 18.59 USD
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For optimal performance, consider the 46.5mm To 61.0mm Silicone Coupler.

Engineered with durability and functionality in mind, this silicone coupler provides a reliable connection for various components in your vehicle's intake or cooling system. Its smooth interior surface promotes efficient airflow, while its flexible and reinforced construction ensures a secure fit and prevents leaks. Enjoy hassle-free installation and enhanced performance with this premium silicone coupler.

  • Durable silicone construction
  • Smooth interior surface for efficient airflow
  • Flexible and reinforced design prevents leaks
  • Secure fit for reliable performance
  • Hassle-free installation
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Forge - Corporate Logo
T#:370919
Part#: VC04B
In Stock
$ 13.99 USD
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Car suffering from vacuum leaks? This vacuum hose has a 4mm inner diameter. 

Engine Vent Hose 11151276485
We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:6676
Part#: 11151276485
Ships in 2 Business Days
Sale - Save 21% $ 3.99
$ 3.17 USD
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Sale - Save 21% $ 3.99
$ 3.17 USD
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ENGINE VENT HOSE 11151276485

Idle Control Valve Hose
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URO - Corporate Logo
T#:373056
Part#: 11631276651
Ships in 2 Business Days
Sale - Save 6% $ 12.99
$ 12.19 USD
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Sale - Save 6% $ 12.99
$ 12.19 USD
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Connects the fuel line to the Idle Control Valve
MTC - Corporate Logo
T#:3215
Part#: 13711285479
Ships Jul 8, 2025
$ 7.99 USD
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This intake boot fits BMW E30 325e 325es 1984-1987 with the M20 engine.Over time, this boot my become dry and cracked. If this boot is cracked it will allow unmetered, and unfiltered air to enter the engine and cause a number of drivability problems.

This item fits the following BMWs:
1984-1987 E30 BMW 325e 325es
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Silicone Elbow - 90 Degree 3"
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Precision Raceworks - Corporate Logo
T#:38195398
Part#: 101-0247
Ships Jul 11, 2025
New Item
$ 31.99 USD
$ 31.99 USD
Precision Raceworks 90-Degree 3" Silicone Elbow – High-Performance, Heat-Resistant Boost Pipe for Custom Intercooler Setups.


Rein Silicone Vaccum Hose - Black - 65 Feet
2X Entries For Our Spin To Win Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:378475
Part#: 5173125797120BLK
Ships Jul 22, 2025
$ 151.99 USD
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$ 151.99 USD
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Replace your cracked or frayed vacuum lines. 3.5mm
Rein Cloth Braided Fuel/Vacuum Hose - Black - 20 Meter
2X Entries For Our Spin To Win Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:378471
Part#: N203531-20
Ships Jul 22, 2025
$ 329.83 USD
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$ 329.83 USD
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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID
3" To 2.5" Silicone Coupler 3" Length
10X Entries For Our Spin To Win Sweepstakes!
ECS - Corporate Logo
T#:363896
Part#: 003402ECS04A-02
Ships on Sep 24, 2025
Sale - Save 15% $ 9.99
$ 8.49 USD
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Sale - Save 15% $ 9.99
$ 8.49 USD
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3" To 2.5" Silicone Coupler 3" Length

Enhance the performance and durability of your BMW or MINI with the 3" To 2.5" Silicone Coupler 3" Length. This silicone coupler provides a reliable connection between components, ensuring optimal airflow and reducing the risk of leaks. Engineered for durability and heat resistance, it withstands high temperatures and harsh conditions. Upgrade your BMW or MINI with this premium silicone coupler for improved performance.

  • Reliable connection for optimal airflow
  • Reduces the risk of leaks for enhanced performance
  • Engineered for durability and heat resistance
  • Fits both BMW and MINI models
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2.25" To 2.5" Silicone Coupler - Each
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ECS - Corporate Logo
T#:28570862
Part#: 003402ECS04A-03
Special Order: No Guaranteed ETA
Sale - Save 40% $ 28.99
$ 17.39 USD
Free Shipping on orders $49 and up
Sale - Save 40% $ 28.99
$ 17.39 USD
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Upgrade your intake system with the 2.25" To 2.5" Silicone Coupler.

Engineered for durability and performance, this silicone coupler is the perfect solution for connecting components in your vehicle's intake or cooling system. With a smooth interior surface and reinforced construction, it ensures optimal airflow and prevents leaks. Enjoy easy installation and a secure fit, thanks to its flexibility and precision design. Enhance your vehicle's performance and reliability with this high-quality silicone coupler.

  • Durable silicone construction
  • Smooth interior surface for optimal airflow
  • Reinforced design prevents leaks
  • Flexible for easy installation
  • Precision-engineered for a secure fit
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