Car Engine Parts Online

From air filters to fuel delivery, online engine parts are essential for automotive repairs, maintenance, and even performance upgrades. Whether you’re an experienced mechanic or automotive enthusiast working on your daily driver or restoring a classic, Sixity Auto has you covered. Dive into our catalog below to find the car engine parts you need to keep your vehicle running smoothly.

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  1. Dorman Catalytic Converter
    Dorman Front Catalytic Converter for 2011-2016 Chevrolet Cruze 1.4L L4
    Special Price $586.18 Regular Price $836.99
  2. Dorman Catalytic Converter
    Dorman Front Catalytic Converter for 2013-2019 Chevrolet Trax 1.4L L4
    Special Price $586.18 Regular Price $836.99
  3. Gates Turbocharger Oil Return Line
    Gates TL108 Turbocharger Oil Return Line
    Special Price $14.41 Regular Price $20.99
  4. SKF Catalytic Converter
    SKF 19215 Catalytic Converter
    Special Price $15.16 Regular Price $21.99
    Out of stock
  5. Gates Turbocharger Oil Return Line
    Gates TL105 Turbocharger Oil Return Line
    Special Price $25.73 Regular Price $36.99
    Out of stock
  6. Gates Turbocharger Oil Return Line
    Gates Turbocharger Oil Return Line for 2012-2020 Chevrolet Sonic 1.4L L4
    Special Price $35.86 Regular Price $50.99
    Out of stock
  7. Gates Turbocharger Oil Return Line
    Gates Turbocharger Oil Return Line for 2016 Chevrolet Cruze Limited 1.4L L4
    Special Price $35.86 Regular Price $50.99
    Out of stock
  8. Gates Turbocharger Oil Return Line
    Gates Turbocharger Oil Return Line for 2013-2020 Buick Encore 1.4L L4
    Special Price $36.60 Regular Price $51.99
    Out of stock
  9. Gates Turbocharger Oil Return Line
    Gates Turbocharger Oil Return Line for 2011-2016 Chevrolet Cruze 1.4L L4
    Special Price $36.60 Regular Price $51.99
    Out of stock
  10. Gates Turbocharger Oil Return Line
    Gates Turbocharger Oil Return Line for 2013-2020 Chevrolet Trax 1.4L L4
    Special Price $36.60 Regular Price $51.99
    Out of stock
  11. Rein Turbocharger Oil Return Line
    Rein TRP0312 Turbo Oil Return Line
    Special Price $37.20 Regular Price $52.99
    Out of stock
  12. Holstein Engine Variable Valve Timing (VVT) Adjuster Magnet
    Holstein 2VTS0211 Variable Timing Adjuster Magnet
    Special Price $41.84 Regular Price $59.99
    Out of stock
  13. Rein Turbocharger Oil Return Line
    Rein TRP0311 Turbo Oil Return Line
    Special Price $46.93 Regular Price $66.99
  14. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2011-2016 Mini Cooper Countryman 1.6L L4
    Special Price $47.49 Regular Price $67.99
    Out of stock
  15. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2007-2015 Mini Cooper 1.6L L4
    Special Price $47.49 Regular Price $67.99
    Out of stock
  16. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2013-2016 Mini Cooper Paceman 1.6L L4
    Special Price $48.46 Regular Price $68.99
    Out of stock
  17. Rein Turbocharger Oil Return Line
    Rein TRP0342 Turbo Oil Return Line
    Special Price $49.92 Regular Price $70.99
  18. Rein Turbocharger Oil Return Line
    Rein TRP0313 Turbo Oil Return Line
    Special Price $50.08 Regular Price $71.99
  19. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2011-2013 BMW 135i 3.0L L6
    Special Price $57.05 Regular Price $81.99
  20. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2013-2015 BMW 740i 3.0L L6
    Special Price $57.05 Regular Price $81.99
  21. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2013-2015 BMW ActiveHybrid 7 3.0L L6
    Special Price $57.05 Regular Price $81.99
  22. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2014-2016 BMW 435i 3.0L L6
    Special Price $57.05 Regular Price $81.99
  23. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2014-2016 BMW 435i xDrive 3.0L L6
    Special Price $57.05 Regular Price $81.99
  24. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2011-2016 BMW 535i 3.0L L6
    Special Price $57.05 Regular Price $81.99
  25. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2013-2015 BMW 740Li 3.0L L6
    Special Price $57.05 Regular Price $81.99
  26. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2011-2017 BMW 535i GT xDrive 3.0L L6
    Special Price $57.05 Regular Price $81.99
  27. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2015-2018 BMW X4 3.0L L6
    Special Price $57.05 Regular Price $81.99
  28. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2013 BMW 135is 3.0L L6
    Special Price $57.05 Regular Price $81.99
  29. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2011-2015 BMW 335i xDrive 3.0L L6
    Special Price $57.05 Regular Price $81.99
  30. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2014-2019 BMW 640i xDrive Gran Coupe 3.0L L6
    Special Price $57.05 Regular Price $81.99
  31. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2010-2017 BMW 535i GT 3.0L L6
    Special Price $58.22 Regular Price $82.99
  32. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2012-2018 BMW 640i 3.0L L6
    Special Price $58.22 Regular Price $82.99
  33. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2014-2018 BMW 640i xDrive 3.0L L6
    Special Price $58.22 Regular Price $82.99
  34. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2013-2015 BMW 740Li xDrive 3.0L L6
    Special Price $58.22 Regular Price $82.99
  35. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2016-2018 BMW M2 3.0L L6
    Special Price $58.22 Regular Price $82.99
  36. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2011-2017 BMW X3 3.0L L6
    Special Price $58.22 Regular Price $82.99
  37. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2015-2016 BMW 435i Gran Coupe 3.0L L6
    Special Price $58.22 Regular Price $82.99
  38. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2012-2016 BMW ActiveHybrid 5 3.0L L6
    Special Price $58.22 Regular Price $82.99
  39. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2011-2016 BMW 535i xDrive 3.0L L6
    Special Price $58.22 Regular Price $82.99
  40. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2013-2015 BMW ActiveHybrid 3 3.0L L6
    Special Price $58.22 Regular Price $82.99
  41. Rein Turbocharger Oil Return Line
    Rein Turbo Oil Return Line for 2013-2015 BMW X1 3.0L L6
    Special Price $58.22 Regular Price $82.99
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High-Quality Engine Parts for Your Motor Vehicle

Sixity Auto works with top brands to build our inventory of OEM-quality engine parts online, ensuring you have access to reliable and cost-effective components. We promise that every part fits as advertised and meets or exceeds expectations. 

We want to make sure that whether you’re performing routine maintenance or making a major repair, you can find the best parts at a fair price. Our focus is always on delivering affordable solutions without compromising the strict tolerances for your vehicle’s longevity. 

Fast, Reliable Shipping

We know that when you order car engine parts, you need them right away. Our network of US warehouses enables us to offer fast, dependable shipping across the US, with 99% of orders shipping within one business day. Many of the items in our catalog also come with free shipping. 

A Reputation You Can Count On

Sixity Auto has been in business for over 20 years and has shipped over 10 million engine parts from our online storefront. Our customers praise our products and timely delivery. If you have any questions about us or our inventory, contact our US-based customer service department. We’re happy to be of service.

Frequently Asked Questions

How fast will your engine parts arrive?

Timing is a top priority. We use our extensive network of warehouses to ensure speedy delivery, with most orders shipping within one business day. That said, the exact delivery time will depend on the parts ordered, your location, and the delivery options selected during checkout.

Are the parts on Sixity Auto comparable to what I’d find in a store?

Absolutely! We stock only top-quality OEM-replacement auto parts that meet or exceed original equipment specifications. The crucial difference between Sixity Auto and the other guys is price. We offer these high-quality parts at prices typically lower than those at your local auto parts store.

Do you offer any discounts for the engine parts sold online?

Yes. We’re proud to offer a 10% discount on everything for military personnel


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