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Cooling System

Your engine is cooled by a mix of ethylene glycol and water circulated through a radiator by the water pump. Proper maintenance of your MINI or BMW cooling system ensures not only a healthy and well-running engine, but also a comfortable cabin for you and your passengers. In this category you'll find thermostats, water pumps, radiator hoses, radiators, complete BMW and MINI cooling system rebuild kits, and expansion tanks.

For more than four decades, Bavarian Autosport has been helping BMW and MINI enthusiasts maintain, repair, and upgrade their vehicles while saving thousands of dollars in shop fees. Throughout our history it has been our mission to give every MINI or BMW owner the resources to take on nearly any repair or maintenance task themselves. With more than 100 DIY videos and free tech help available on our site, there is no job that is too big. We have a full team of advisors ready to answer your technical questions and help you find the right part for your MINI or BMW by phone or email. And if you aren't 100% satisfied with your purchase, returns are easy and hassle-free.

Set Descending Direction
  • Radiator Cap -JL Germany

    Radiator Cap -JL Germany

    PART#: 54500

    BRAND: JL Germany

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $8.95 / each
    Typically ships in 1-2 days.

    Availability: Direct Ship

    Ships for free if total order exceeds $99
  • Radiator cap

    Radiator Cap - Genuine BMW

    PART#: 17 11 2 227 683

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $17.57 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Expansion Tank Cap - Screw on type - Genuine BMW

    Expansion Tank Cap - Screw on type - Genuine BMW

    PART#: 17 11 4 379 047

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $23.63 / each
    Typically ships in 3-5 days.

    Ships for free if total order exceeds $99
  • Radiator cap

    RADIATOR CAP

    PART#: 11 53 1 486 703

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $20.39 / each
    Typically ships in 5-10 days.

    Ships for free if total order exceeds $99
  • Radiator cap

    COVER LID - Genuine MINI

    PART#: 17 10 7 515 485

    BRAND: Genuine MINI

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $4.39 / each
    Typically ships in 5-10 days.

    Ships for free if total order exceeds $99
  • Radiator cap

    Expansion Tank Cap

    PART#: 17 10 7 515 499

    BRAND: Genuine MINI

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $10.40 / each
    Typically ships in 5-10 days.

    Ships for free if total order exceeds $99
  • Radiator cap

    RADIATOR CAP

    PART#: 17 11 1 709 236

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $20.82 / each
    Typically ships in 3-5 days.

    Ships for free if total order exceeds $99
  • Radiator cap

    Radiator Cap - JL GERMANY

    PART#: 52364

    BRAND: JL Germany

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $6.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Radiator cap

    Radiator Cap - Behr

    PART#: 376743451

    BRAND: Behr

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $8.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Radiator cap

    Radiator Cap - Tab Type

    PART#: 17 11 1 100 848

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $18.77 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Radiator cap

    CAP - Genuine BMW

    PART#: 17 11 1 723 117

    BRAND: Genuine BMW

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $5.86 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Cap for Expansion Tank - Bavarian Autosport

    Cap for Expansion Tank - Bavarian Autosport

    PART#: 55732

    BRAND: Bavarian Autosport

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $5.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99