Rein BKK0146 Rack and Pinion Bellows Kit
OE Quality 60-Day Returns
Rein

Rein BKK0146 Rack and Pinion Bellows Kit

Brand Rein BKK0146
Application Type Applicationspecific
Bullet Point 1 Rein boot kits come with all the needed hardware and components f
Bullet Point 2 All components are manufactured to strict engineering standards/s
Bullet Point 3 Rein also offers a full line of individual boots.
Bullet Point 4 Matches original equipment design specifications
Color Black
Container Type Bg
Country of Origin Cn
Installation Instructions Included No
Is the Installation Hardware Included No
Item Height 2.7500
Item Length 7.5000
Item Level GTIN 888544066535
Item Qty 1
Item Quantity Size 1
Item Quantity Size UOM Ea
Item UOM Ea
Item Weight 0.1550
Item Weight Unit UOM Lb
Item Width 2.7500
Product Desc Invoice 40 Rein steering rack boot kit
Product Desc Long 80 Rein oe quality power steering rack boot kit
Product Desc Short 20 Steering rack boot
Warranty Distance 24000
Warranty Time 24
Fits BMW · 235 vehicles

OE-quality design. Matches original equipment specifications for a proper fit and function.

Complete repair kit. Includes the needed components for a full boot replacement.

Precision-built. Made to strict engineering standards for materials and tolerances.

Cross-references 32106779622, 32106795845 and 32106870519 for the same application. See all 3.

$21.87Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $21.87
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Rack and Pinion Bellows Kit options

OE-Quality Steering Rack Boot Kit

Rein BKK0146 is an application-specific rack and pinion bellows kit for BMW steering systems. It is built to match original equipment design specifications and includes the components needed for a proper repair on supported BMW 230i, 330i, 430i, X3, X5, and related models.

For BMW steering rack boot replacement, this OE-quality power steering rack boot kit helps restore the protective seal around the rack and pinion assembly. Rein BKK0146 is engineered to strict material and tolerance standards for a direct-fit service part.

  • Application-specific rack and pinion bellows kit
  • Matches original equipment design specifications
  • Manufactured to strict engineering standards for materials and tolerances
  • Complete repair-focused kit for supported BMW steering applications
  • Rein also offers individual boots for separate service needs

Detailed Product Information

The Rein BKK0146 steering rack boot is used to protect the steering rack joint from dirt, sand, and other road contaminants that can accelerate wear when the bellows are damaged or missing. This part is a direct replacement for BMW steering systems across a wide range of 2007-2021 applications, including BMW X3, X5, X6, 3 Series, 4 Series, and 2 Series models listed in the fitment data. This part cross-references BMW OE numbers 32106779622 and 32106795845 for the same application.

When replacing a worn BMW rack and pinion bellows, BKK0146 helps maintain the protective barrier around the steering gear and supports a clean, factory-style repair. It is a practical choice for BMW steering rack boot replacement on vehicles with Variable Sport Steering or Active Steering where noted in the fitment list.

Common Repair Uses

  • Torn or cracked steering rack boot
  • Contamination entering the rack and pinion bellows area
  • Loss of protection around the steering gear joint
  • Steering rack service on BMW models with OE-style bellows requirements
  • Restoration of a damaged power steering boot on supported BMW applications

Installation Notes

Verify the vehicle’s steering configuration and fitment notes before installation, especially on BMW models with Variable Sport Steering or Active Steering. Inspect the rack, tie rod ends, and surrounding components for wear before installing the new bellows. Follow the vehicle service procedure for proper alignment and sealing after replacement.

Quality Assurance

Rein manufactures this boot kit to strict engineering specifications and OE design standards for consistent fit and function. BKK0146 is backed by a 24-month/24,000-mile warranty.

Related reading

This part fits 235 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeDrive TypeLitersCylindersFuel TypePositionNotes
2021BMW230i xDrive—Convertible—2.0LL4—N/A—
2021BMWM240i———3.0LL6—N/A—
2021BMWM240i xDrive———3.0LL6—N/A—
2020BMW230i xDrive—Convertible—2.0LL4—N/A—
2020BMW430i—Convertible—2.0LL4—N/A—
2020BMW430i Gran Coupe———2.0LL4—N/A—
2020BMW430i xDrive—Convertible—2.0LL4—N/A—
2020BMW430i xDrive Gran Coupe———2.0LL4—N/A—
2020BMW440i—Convertible—3.0LL6—N/A—
2020BMW440i Gran Coupe——RWD3.0LL6—N/Aw/Variable Sport Stg.
2020BMW440i xDrive—Convertible—3.0LL6—N/A—
2020BMW440i xDrive Gran Coupe——AWD3.0LL6—N/A—
2020BMWM240i———3.0LL6—N/A—
2020BMWM240i xDrive———3.0LL6—N/A—
2019BMW230i xDrive—Convertible—2.0LL4—N/A—
2019BMW330i xDrive———2.0LL4—N/A—
2019BMW340i GT xDrive———3.0LL6—N/A—
2019BMW430i—Convertible—2.0LL4—N/A—
2019BMW430i Gran Coupe———2.0LL4—N/A—
2019BMW430i xDrive—Convertible—2.0LL4—N/A—
2019BMW430i xDrive Gran Coupe———2.0LL4—N/A—
2019BMW440i—Convertible—3.0LL6—N/A—
2019BMW440i Gran Coupe——RWD3.0LL6—N/Aw/Variable Sport Stg.
2019BMW440i xDrive—Convertible—3.0LL6—N/A—
2019BMW440i xDrive Gran Coupe——AWD3.0LL6—N/A—
2019BMWM240i———3.0LL6—N/A—
2019BMWM240i xDrive———3.0LL6—N/A—
2019BMWX6——AWD3.0LL6—N/Aw/Active Stg.
2019BMWX6xDrive50i——4.4LV8—N/Aw/Active Stg.
2018BMW230i xDrive—Convertible—2.0LL4—N/A—
2018BMW320i———2.0LL4—N/Aw/Variable Sport Stg.
2018BMW320i xDrive———2.0LL4—N/A—
2018BMW328d———2.0LL4DIESELN/Aw/Variable Sport Stg.
2018BMW328d xDrive———2.0LL4DIESELN/A—
2018BMW330e———2.0LL4—N/A—
2018BMW330i———2.0LL4—N/Aw/Variable Sport Stg.
2018BMW330i xDrive———2.0LL4—N/A—
2018BMW340i———3.0LL6—N/Aw/Variable Sport Stg.
2018BMW340i GT xDrive———3.0LL6—N/A—
2018BMW340i xDrive———3.0LL6—N/A—
2018BMW430i—Convertible—2.0LL4—N/A—
2018BMW430i Gran Coupe———2.0LL4—N/A—
2018BMW430i xDrive—Convertible—2.0LL4—N/A—
2018BMW430i xDrive Gran Coupe———2.0LL4—N/A—
2018BMW440i—Convertible—3.0LL6—N/A—
2018BMW440i Gran Coupe——RWD3.0LL6—N/Aw/Variable Sport Stg.
2018BMW440i xDrive—Convertible—3.0LL6—N/A—
2018BMW440i xDrive Gran Coupe——AWD3.0LL6—N/A—
2018BMWM240i———3.0LL6—N/A—
2018BMWM240i xDrive———3.0LL6—N/A—
2018BMWX4———2.0LL4—N/A—
2018BMWX4———3.0LL6—N/A—
2018BMWX5———3.0LL6DIESELN/Aw/Active Stg.
2018BMWX5——AWD3.0LL6GASN/Aw/Active Stg.
2018BMWX5xDrive50i——4.4LV8—N/Aw/Active Stg.
2018BMWX6——AWD3.0LL6—N/Aw/Active Stg.
2018BMWX6xDrive50i——4.4LV8—N/Aw/Active Stg.
2017BMW230i———2.0LL4—N/Aw/Variable Sport Stg.
2017BMW230i xDrive———2.0LL4—N/A—
2017BMW320i———2.0LL4—N/Aw/Variable Sport Stg.
2017BMW320i xDrive———2.0LL4—N/A—
2017BMW328d———2.0LL4DIESELN/Aw/Variable Sport Stg.
2017BMW328d xDrive———2.0LL4DIESELN/A—
2017BMW330e———2.0LL4—N/A—
2017BMW330i———2.0LL4—N/Aw/Variable Sport Stg.
2017BMW330i xDrive———2.0LL4—N/A—
2017BMW340i———3.0LL6—N/Aw/Variable Sport Stg.
2017BMW340i GT xDrive———3.0LL6—N/A—
2017BMW340i xDrive———3.0LL6—N/A—
2017BMW430i———2.0LL4—N/Aw/Variable Sport Stg.
2017BMW430i Gran Coupe———2.0LL4—N/A—
2017BMW430i xDrive———2.0LL4—N/Aw/Variable Sport Stg.
2017BMW430i xDrive Gran Coupe———2.0LL4—N/A—
2017BMW440i———3.0LL6—N/Aw/Variable Sport Stg.
2017BMW440i Gran Coupe——RWD3.0LL6—N/Aw/Variable Sport Stg.
2017BMW440i xDrive———3.0LL6—N/Aw/Variable Sport Stg.
2017BMW440i xDrive Gran Coupe——AWD3.0LL6—N/A—
2017BMWM240i———3.0LL6—N/A—
2017BMWM240i xDrive———3.0LL6—N/A—
2017BMWX3———2.0LL4DIESELN/A—
2017BMWX3———2.0LL4GASN/A—
2017BMWX3———3.0LL6—N/A—
2017BMWX4———2.0LL4—N/A—
2017BMWX4———3.0LL6—N/A—
2017BMWX5———3.0LL6DIESELN/Aw/Active Stg.
2017BMWX5——AWD3.0LL6GASN/Aw/Active Stg.
2017BMWX5xDrive50i——4.4LV8—N/Aw/Active Stg.
2017BMWX6——AWD3.0LL6—N/Aw/Active Stg.
2017BMWX6xDrive50i——4.4LV8—N/Aw/Active Stg.
2016BMW228i———2.0LL4—N/Aw/Variable Sport Stg.
2016BMW228i xDrive———2.0LL4—N/A—
2016BMW320i———2.0LL4—N/Aw/Variable Sport Stg.
2016BMW320i xDrive———2.0LL4—N/A—
2016BMW328d———2.0LL4DIESELN/Aw/Variable Sport Stg.
2016BMW328d xDrive———2.0LL4DIESELN/A—
2016BMW328i———2.0LL4—N/Aw/Variable Sport Stg.
2016BMW328i GT xDrive———2.0LL4—N/A—
2016BMW328i xDrive———2.0LL4—N/A—
2016BMW330e———2.0LL4—N/A—
2016BMW335i GT xDrive———3.0LL6—N/A—
2016BMW340i———3.0LL6—N/Aw/Variable Sport Stg.
2016BMW340i xDrive———3.0LL6—N/A—
2016BMW428i——RWD2.0LL4—N/Aw/Variable Sport Stg.
2016BMW428i Gran Coupe——RWD2.0LL4—N/Aw/Variable Sport Stg.
2016BMW428i xDrive——AWD2.0LL4—N/A—
2016BMW428i xDrive Gran Coupe——AWD2.0LL4—N/A—
2016BMW435i———3.0LL6—N/A—
2016BMW435i Gran Coupe———3.0LL6—N/A—
2016BMW435i xDrive———3.0LL6—N/A—
2016BMW435i xDrive Gran Coupe———3.0LL6—N/A—
2016BMWM235i———3.0LL6—N/A—
2016BMWM235i xDrive———3.0LL6—N/A—
2016BMWX3———2.0LL4DIESELN/A—
2016BMWX3———2.0LL4GASN/A—
2016BMWX3———3.0LL6—N/A—
2016BMWX4———2.0LL4—N/A—
2016BMWX4———3.0LL6—N/A—
2016BMWX5———3.0LL6DIESELN/Aw/Active Stg.
2016BMWX5——AWD3.0LL6GASN/Aw/Active Stg.
2016BMWX5xDrive50i——4.4LV8—N/Aw/Active Stg.
2016BMWX6——AWD3.0LL6—N/Aw/Active Stg.
2016BMWX6xDrive50i——4.4LV8—N/Aw/Active Stg.
2015BMW228i———2.0LL4—N/Aw/Variable Sport Stg.
2015BMW228i———2.0LL4—N/ATo 7/14, w/o Variable Sport Stg.
2015BMW228i xDrive———2.0LL4—N/A—
2015BMW320i———2.0LL4—N/Aw/Variable Sport Stg.
2015BMW320i———2.0LL4—N/ATo 7/14, w/o Variable Sport Stg.
2015BMW320i xDrive———2.0LL4—N/A—
2015BMW328d———2.0LL4DIESELN/Aw/Variable Sport Stg.
2015BMW328d———2.0LL4DIESELN/ATo 7/14, w/o Variable Sport Stg.
2015BMW328d xDrive———2.0LL4DIESELN/A—
2015BMW328i———2.0LL4—N/Aw/Variable Sport Stg.
2015BMW328i———2.0LL4—N/ATo 7/14, w/o Variable Sport Stg.
2015BMW328i GT xDrive———2.0LL4—N/A—
2015BMW328i xDrive———2.0LL4—N/A—
2015BMW335i———3.0LL6—N/ATo 7/14, w/o Variable Sport Stg.
2015BMW335i———3.0LL6—N/Aw/Variable Sport Stg.
2015BMW335i GT xDrive———3.0LL6—N/A—
2015BMW335i xDrive———3.0LL6—N/A—
2015BMW428i——RWD2.0LL4—N/ATo 7/14, w/o Variable Sport Stg.
2015BMW428i——RWD2.0LL4—N/Aw/Variable Sport Stg.
2015BMW428i Gran Coupe——RWD2.0LL4—N/ATo 7/14, w/o Variable Sport Stg.
2015BMW428i Gran Coupe——RWD2.0LL4—N/Aw/Variable Sport Stg.
2015BMW428i xDrive——AWD2.0LL4—N/A—
2015BMW428i xDrive Gran Coupe——AWD2.0LL4—N/A—
2015BMW435i———3.0LL6—N/A—
2015BMW435i Gran Coupe———3.0LL6—N/A—
2015BMW435i xDrive———3.0LL6—N/A—
2015BMW435i xDrive Gran Coupe———3.0LL6—N/A—
2015BMWActiveHybrid 3———3.0LL6—N/A—
2015BMWM235i———3.0LL6—N/A—
2015BMWM235i xDrive———3.0LL6—N/A—
2015BMWX3———2.0LL4DIESELN/A—
2015BMWX3———2.0LL4GASN/A—
2015BMWX3———3.0LL6—N/A—
2015BMWX4———2.0LL4—N/A—
2015BMWX4———3.0LL6—N/A—
2015BMWX5———3.0LL6DIESELN/Aw/Active Stg.
2015BMWX5——AWD3.0LL6GASN/Aw/Active Stg.
2015BMWX5xDrive50i——4.4LV8—N/Aw/Active Stg.
2015BMWX6——AWD3.0LL6—N/Aw/Active Stg.
2015BMWX6xDrive50i——4.4LV8—N/Aw/Active Stg.
2014BMW228i———2.0LL4—N/A—
2014BMW320i———2.0LL4—N/A—
2014BMW320i xDrive———2.0LL4—N/A—
2014BMW328d———2.0LL4DIESELN/A—
2014BMW328d xDrive———2.0LL4DIESELN/A—
2014BMW328i———2.0LL4—N/A—
2014BMW328i GT xDrive———2.0LL4—N/A—
2014BMW328i xDrive———2.0LL4—N/A—
2014BMW335i———3.0LL6—N/A—
2014BMW335i GT xDrive———3.0LL6—N/A—
2014BMW335i xDrive———3.0LL6—N/A—
2014BMW428i———2.0LL4—N/A—
2014BMW428i xDrive———2.0LL4—N/A—
2014BMW435i———3.0LL6—N/A—
2014BMW435i xDrive———3.0LL6—N/A—
2014BMWActiveHybrid 3———3.0LL6—N/A—
2014BMWM235i———3.0LL6—N/A—
2014BMWX3———2.0LL4—N/A—
2014BMWX3———3.0LL6—N/A—
2014BMWX5———3.0LL6DIESELN/Aw/Active Stg.
2014BMWX5——AWD3.0LL6GASN/Aw/Active Stg.
2014BMWX5———4.4LV8—N/Aw/Active Stg.
2014BMWX6———3.0LL6—N/A—
2014BMWX6———4.4LV8—N/A—
2013BMW320i———2.0LL4—N/A—
2013BMW320i xDrive———2.0LL4—N/A—
2013BMW328i———2.0LL4—N/A—
2013BMW328i xDrive———2.0LL4—N/A—
2013BMW335i—Sedan—3.0LL6—N/A—
2013BMW335i xDrive—Sedan—3.0LL6—N/A—
2013BMWActiveHybrid 3———3.0LL6—N/A—
2013BMWX3———2.0LL4—N/A—
2013BMWX3———3.0LL6—N/A—
2013BMWX5———3.0LL6DIESELN/A—
2013BMWX5———3.0LL6GASN/A—
2013BMWX5———4.4LV8—N/A—
2013BMWX6———3.0LL6—N/A—
2013BMWX6———4.4LV8—N/A—
2012BMW320i———2.0LL4—N/A—
2012BMW328i———2.0LL4—N/A—
2012BMW335i—Sedan—3.0LL6—N/A—
2012BMWX3———3.0LL6—N/A—
2012BMWX5———3.0LL6DIESELN/A—
2012BMWX5———3.0LL6GASN/A—
2012BMWX5———4.4LV8—N/A—
2012BMWX6———3.0LL6—N/A—
2012BMWX6———4.4LV8—N/A—
2011BMWX3———3.0LL6—N/A—
2011BMWX5———3.0LL6DIESELN/A—
2011BMWX5———3.0LL6GASN/A—
2011BMWX5———4.4LV8—N/A—
2011BMWX6———3.0LL6—N/A—
2011BMWX6M——4.4LV8—N/A—
2011BMWX6xDrive50i——4.4LV8—N/A—
2010BMWX5———3.0LL6DIESELN/A—
2010BMWX5———3.0LL6GASN/A—
2010BMWX5———4.4LV8—N/A—
2010BMWX5———4.8LV8—N/A—
2010BMWX6———3.0LL6—N/A—
2010BMWX6M——4.4LV8—N/A—
2010BMWX6xDrive50i——4.4LV8—N/A—
2010BMWX6xDrive50iA——4.4LV8—N/A—
2009BMWX5———3.0LL6DIESELN/A—
2009BMWX5———3.0LL6GASN/A—
2009BMWX5———4.8LV8—N/A—
2009BMWX6———3.0LL6—N/A—
2009BMWX6———4.4LV8—N/A—
2008BMWX5———3.0LL6—N/A—
2008BMWX5———4.8LV8—N/A—
2008BMWX6———3.0LL6—N/A—
2008BMWX6———4.4LV8—N/A—
2007BMWX5———3.0LL6—N/A—
2007BMWX5———4.8LV8—N/A—
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
321067796223210679584532106870519