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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Items 1-48 of 2073

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  1. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2002-2006 Acura RSX 2.0L L4
    Special Price $10.96 Regular Price $15.99
  2. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2002-2012 Jeep Liberty 3.7L V6
    Special Price $14.15 Regular Price $19.99
  3. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Upper and Lower Fuel Injector O-Ring Kit for 2008-2016 Ford Taurus 3.5L V6
    Special Price $28.90 Regular Price $40.99
    Out of stock
  4. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2002-2010 Dodge Ram 1500 3.7L 5.7L V6 V8
    Special Price $10.96 Regular Price $15.99
  5. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2007-2008 GMC Acadia
    Special Price $11.18 Regular Price $15.99
  6. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2005-2017 Honda Odyssey 3.5L V6
    Special Price $11.18 Regular Price $15.99
  7. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2008-2012 Chevrolet Malibu
    Special Price $11.71 Regular Price $16.99
  8. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2003-2013 Chevrolet Express 3500
    Special Price $24.22 Regular Price $34.99
  9. Beck/Arnley Fuel Injector O-Ring Kit
    8 pc Beck/Arnley Fuel Injector O-Ring Kit for 1990-1997 Lexus LS400 4.0L V8
    Special Price $51.65 Regular Price $73.99
  10. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2003-2014 Ford E-150 4.6L 5.4L V8
    Special Price $10.96 Regular Price $15.99
  11. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro ES 72004 Fuel Injector O-Ring Kit
    Special Price $4.28 Regular Price $5.99
  12. MAHLE Fuel Injector O-Ring Kit
    MAHLE GS33276 Fuel Injector O-Ring Kit
    Special Price $4.34 Regular Price $5.99
  13. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2003-2006 Nissan 350Z 3.5L V6
    Special Price $10.96 Regular Price $15.99
  14. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2005-2013 Nissan Frontier
    Special Price $10.96 Regular Price $15.99
  15. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1991-1992 Jeep Comanche 4.0L L6
    Special Price $10.96 Regular Price $15.99
  16. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2011-2018 Ram 2500 5.7L V8
    Special Price $10.96 Regular Price $15.99
  17. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Upper Fuel Injector O-Ring Kit for 2009-2012 Suzuki Equator 2.5L L4
    Special Price $10.96 Regular Price $15.99
  18. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Upper Fuel Injector O-Ring Kit for 2007-2015 Lincoln MKX 3.5L 3.7L V6
    Special Price $10.96 Regular Price $15.99
  19. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2020 Jeep Gladiator 3.6L V6
    Special Price $10.96 Regular Price $15.99
  20. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1999-2015 Hyundai Sonata 2.4L L4
    Special Price $10.96 Regular Price $15.99
  21. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2005-2013 Nissan Xterra
    Special Price $10.96 Regular Price $15.99
  22. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1987-1991 Ford Country Squire 5.0L V8
    Special Price $10.96 Regular Price $15.99
  23. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Upper Fuel Injector O-Ring Kit for 2002-2009 GMC Envoy 4.2L 5.3L L6 V8
    Special Price $10.96 Regular Price $15.99
  24. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1999-2010 Ford F-350 Super Duty 6.8L V10
    Special Price $10.96 Regular Price $15.99
  25. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1991 Ford Taurus 2.5L L4
    Special Price $10.96 Regular Price $15.99
  26. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2004 Ford F-150 Heritage 4.2L V6
    Special Price $10.96 Regular Price $15.99
  27. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1992 Isuzu Stylus 1.8L L4
    Special Price $10.96 Regular Price $15.99
  28. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Lower Fuel Injector O-Ring Kit for 2005-2015 Nissan Armada 5.6L V8
    Special Price $10.96 Regular Price $15.99
  29. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2002-2007 Saturn Vue 3.0L 3.5L V6
    Special Price $11.18 Regular Price $15.99
  30. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2005-2015 Honda Pilot 3.5L V6
    Special Price $11.18 Regular Price $15.99
  31. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2000-2006 Volkswagen Golf 1.8L L4
    Special Price $11.18 Regular Price $15.99
  32. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Upper Fuel Injector O-Ring Kit for 2006-2015 Honda Civic 1.8L L4
    Special Price $11.18 Regular Price $15.99
  33. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2004-2006 Cadillac SRX 4.6L V8
    Special Price $11.18 Regular Price $15.99
  34. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2000-2013 Chevrolet Tahoe
    Special Price $11.18 Regular Price $15.99
  35. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2004-2005 GMC Envoy XUV
    Special Price $11.18 Regular Price $15.99
  36. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2007-2008 Isuzu i-290
    Special Price $11.18 Regular Price $15.99
  37. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2000-2012 Subaru Outback 2.5L H4
    Special Price $11.18 Regular Price $15.99
  38. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1998-2008 Toyota Corolla 1.8L L4
    Special Price $11.18 Regular Price $15.99
  39. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Upper Fuel Injector O-Ring Kit for 2015-2017 Ford Transit-250 3.7L V6
    Special Price $11.18 Regular Price $15.99
  40. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Upper Fuel Injector O-Ring Kit for 2000-2005 Buick Park Avenue 3.8L V6
    Special Price $11.18 Regular Price $15.99
  41. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1996-2000 Chevrolet C2500 7.4L V8
    Special Price $11.18 Regular Price $15.99
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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.