Engine Cooling Components

Keeping your vehicle cool is essential for optimum engine performance. You’ll find all the engine cooling components you need here at Sixity Auto. From drive belts to radiator parts, our inventory has everything you need at affordable prices. And with our US warehouse network, your order gets delivered fast, often at no cost to you. So, whether you’re looking for a serpentine belt, water pumps, or other car cooling system parts, you’ll find what you need below. Just browse our selection or use our vehicle search tool to find the parts you need.

Select Your Vehicle

Filter By Part Details
View as Grid List

38 Items

Set Ascending Direction
  1. Rein Accessory Drive Belt Tensioner Bolt
    Rein HWB0036 Drive Belt Tensioner Bolt
    Special Price $6.00 Regular Price $8.99
  2. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2000-2006 Audi TT Quattro 1.8L L4
    Special Price $9.28 Regular Price $12.99
  3. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2000-2006 Audi TT 1.8L L4
    Special Price $9.48 Regular Price $13.99
  4. Rein Accessory Drive Belt Tensioner Bolt
    2 pc Rein Drive Belt Tensioner Bolts for 2006-2014 Volkswagen Beetle 2.5L L5
    Special Price $11.20 Regular Price $15.99
  5. Rein Accessory Drive Belt Tensioner Bolt
    2 pc Rein Drive Belt Tensioner Bolts for 2010-2014 Volkswagen Golf 2.5L L5
    Special Price $11.44 Regular Price $15.99
  6. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2007-2008 BMW 328xi 3.0L L6
    Special Price $12.88 Regular Price $17.99
  7. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2008-2013 BMW 128i 3.0L L6
    Special Price $12.88 Regular Price $17.99
  8. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2006-2007 BMW 525i 3.0L L6
    Special Price $12.88 Regular Price $17.99
  9. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2006-2011 BMW Z4 3.0L L6
    Special Price $12.88 Regular Price $17.99
  10. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2007-2012 BMW X3 3.0L L6
    Special Price $12.88 Regular Price $17.99
  11. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2006 BMW 330i 3.0L L6
    Special Price $12.88 Regular Price $17.99
  12. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2007-2013 BMW 328i 3.0L L6
    Special Price $12.88 Regular Price $17.99
  13. Rein Accessory Drive Belt Tensioner Bolt
    3 pc Rein Drive Belt Tensioner Bolts for 2009-2014 Audi TTS Quattro 2.0L L4
    Special Price $13.12 Regular Price $18.99
  14. Rein Accessory Drive Belt Tensioner Bolt
    3 pc Rein Drive Belt Tensioner Bolts for 2007-2009 Volkswagen Eos 2.0L L4
    Special Price $13.12 Regular Price $18.99
  15. Rein Accessory Drive Belt Tensioner Bolt
    3 pc Rein Drive Belt Tensioner Bolts for 2006-2008 Volkswagen Passat 2.0L L4
    Special Price $13.12 Regular Price $18.99
  16. Rein Accessory Drive Belt Tensioner Bolt
    3 pc Rein Drive Belt Tensioner Bolts for 2006-2008 Audi A3 2.0L L4
    Special Price $13.12 Regular Price $18.99
  17. Rein Accessory Drive Belt Tensioner Bolt
    3 pc Rein Drive Belt Tensioner Bolts for 2012-2013 Audi TT Quattro 2.0L L4
    Special Price $13.12 Regular Price $18.99
  18. Rein Accessory Drive Belt Tensioner Bolt
    3 pc Rein Drive Belt Tensioner Bolts for 2008-2013 Audi TT 2.0L L4
    Special Price $13.12 Regular Price $18.99
  19. Rein Accessory Drive Belt Tensioner Bolt
    3 pc Rein Drive Belt Tensioner Bolts for 2006-2008 Volkswagen GTI 2.0L L4
    Special Price $13.12 Regular Price $18.99
  20. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2006 BMW 325xi 3.0L L6
    Special Price $13.14 Regular Price $18.99
  21. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2006-2007 BMW 530xi 3.0L L6
    Special Price $13.14 Regular Price $18.99
  22. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2008 BMW 528xi 3.0L L6
    Special Price $13.14 Regular Price $18.99
  23. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2006-2007 BMW 525xi 3.0L L6
    Special Price $13.14 Regular Price $18.99
  24. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2006-2007 BMW 530i 3.0L L6
    Special Price $13.14 Regular Price $18.99
  25. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2009-2013 BMW 328i xDrive 3.0L L6
    Special Price $13.14 Regular Price $18.99
  26. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2006-2011 BMW 323i 2.5L L6
    Special Price $13.14 Regular Price $18.99
  27. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2008-2011 BMW 528i 3.0L L6
    Special Price $13.14 Regular Price $18.99
  28. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2006 BMW 330xi 3.0L L6
    Special Price $13.14 Regular Price $18.99
  29. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2006 BMW 325i 3.0L L6
    Special Price $13.14 Regular Price $18.99
  30. Rein Accessory Drive Belt Tensioner Bolt
    Rein Drive Belt Tensioner Bolt for 2009-2010 BMW 528i xDrive 3.0L L6
    Special Price $13.14 Regular Price $18.99
  31. Rein Accessory Drive Belt Tensioner Bolt
    3 pc Rein Drive Belt Tensioner Bolts for 2012-2013 Volkswagen Golf R 2.0L L4
    Special Price $13.39 Regular Price $18.99
  32. Rein Accessory Drive Belt Tensioner Bolt
    3 pc Rein Drive Belt Tensioner Bolts for 2006-2008 Audi A3 Quattro 2.0L L4
    Special Price $13.39 Regular Price $18.99
  33. Rein Accessory Drive Belt Tensioner Bolt
    3 pc Rein Drive Belt Tensioner Bolts for 2007-2009 Volkswagen Jetta City 2.0L L4
    Special Price $13.39 Regular Price $18.99
  34. Rein Accessory Drive Belt Tensioner Bolt
    3 pc Rein Drive Belt Tensioner Bolts for 2007-2010 Volkswagen Golf City 2.0L L4
    Special Price $13.39 Regular Price $18.99
per page

OEM-Quality Automotive Cooling Components

Why pay more for the same high-quality parts? Sixity Auto understands quality isn’t about the price; it’s about performance. Our inventory contains only OEM-quality and above parts and accessories. The OEM engine cooling components we sell are from the best brands and offered at great prices. 

Rapid Fulfillment

Sixity Auto knows that timing matters. When you’re working on your car, you need parts delivered on time and ready to install. Our warehouse network ensures a fast delivery, with 99% of our orders shipping out within one business day of ordering.

Experience and Access

We have 20+ years in business under our belt. We’ve shipped over 10 million auto parts over that period, and we’ve learned a thing or two, especially regarding customer support. While we pride ourselves on our inventory and expertise, our customer support is bar none.

Frequently Asked Questions

What are the main engine cooling components?

Car cooling system parts include the radiator, water pump, thermostat, and cooling fans. These parts work in concert to prevent overheating and maintain ideal system temperatures.

Is there a problem with my car’s cooling system?

Check out the temperature gauge when your car’s running. Is it high? That’s usually the most obvious sign of a problem. Other signs could include grinding noises, coolant puddles, or steam rising from the engine bay.

Why should you buy automotive cooling components from Sixity Auto?

Sixity Auto sells OEM-quality engine cooling components at affordable prices (no dealership or store markups here). You also get the benefit of buying from a US-based company with more than two decades of experience. 


© 2026 Sixity, Inc. Part of Proximity Group, an American-owned and operated online retailer. All Rights Reserved.