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. 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 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2009-2013 Nissan Versa
    Special Price $11.18 Regular Price $15.99
  9. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Upper Fuel Injector O-Ring Kit for 2009-2016 Nissan Versa 1.6L L4
    Special Price $10.96 Regular Price $15.99
  10. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1998-2007 Toyota Land Cruiser 4.7L V8
    Special Price $19.34 Regular Price $27.99
  11. Dorman Fuel Injector O-Ring Kit
    Dorman Fuel Injector O-Ring Kit for 1994-1997 Ford F-350 7.3L V8
    Special Price $24.48 Regular Price $34.99
  12. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro ES 70599 Fuel Injector O-Ring Kit
    Special Price $4.17 Regular Price $5.99
  13. MAHLE Fuel Injector O-Ring Kit
    MAHLE GS33276 Fuel Injector O-Ring Kit
    Special Price $4.34 Regular Price $5.99
  14. Walker Muffler / Exhaust Putty
    Walker 35958 Muffler Exhaust Putty
    Special Price $9.38 Regular Price $12.99
  15. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1991-2011 Jeep Wrangler 3.8L 4.0L L6 V6
    Special Price $10.96 Regular Price $15.99
  16. 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
  17. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Lower Fuel Injector O-Ring Kit for 2012-2016 Nissan NV2500 5.6L V8
    Special Price $10.96 Regular Price $15.99
  18. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1992-2011 Mercury Grand Marquis 4.6L V8
    Special Price $10.96 Regular Price $15.99
  19. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2004-2012 GMC Canyon
    Special Price $10.96 Regular Price $15.99
  20. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2004-2012 GMC Canyon
    Special Price $10.96 Regular Price $15.99
  21. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2006-2011 Chevrolet HHR
    Special Price $10.96 Regular Price $15.99
  22. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2013 Infiniti JX35 3.5L V6
    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 2004-2007 Chevrolet Optra 2.0L L4
    Special Price $11.18 Regular Price $15.99
  24. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Lower Fuel Injector O-Ring Kit for 2011-2013 Ram 1500 4.7L V8
    Special Price $11.18 Regular Price $15.99
  25. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2000-2013 GMC Yukon
    Special Price $11.18 Regular Price $15.99
  26. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1992-1998 Oldsmobile Achieva 2.3L 2.4L L4
    Special Price $11.18 Regular Price $15.99
  27. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Upper Fuel Injector O-Ring Kit for 2012-2020 Nissan NV2500 4.0L V6
    Special Price $11.18 Regular Price $15.99
  28. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2009-2011 Mazda Tribute
    Special Price $11.18 Regular Price $15.99
  29. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Upper Fuel Injector O-Ring Kit for 1999-2002 Daewoo Lanos 1.5L 1.6L L4
    Special Price $11.18 Regular Price $15.99
  30. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Lower Fuel Injector O-Ring Kit for 2006-2011 Buick Lucerne 4.6L V8
    Special Price $11.18 Regular Price $15.99
  31. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Lower Fuel Injector O-Ring Kit for 2008-2010 Saturn Vue 3.6L V6
    Special Price $11.95 Regular Price $16.99
  32. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2007-2009 Pontiac G6
    Special Price $11.95 Regular Price $16.99
  33. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1988-2002 Toyota 4Runner 3.0L 3.4L V6
    Special Price $12.12 Regular Price $16.99
  34. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1995-2004 Toyota Avalon 3.0L V6
    Special Price $12.12 Regular Price $16.99
  35. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1990-2005 Mazda Miata 1.6L 1.8L L4
    Special Price $12.37 Regular Price $17.99
  36. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Lower Fuel Injector O-Ring Kit for 2003-2006 Chevrolet SSR 5.3L 6.0L V8
    Special Price $13.33 Regular Price $18.99
  37. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2000-2004 Buick Regal
    Special Price $13.33 Regular Price $18.99
  38. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Lower Fuel Injector O-Ring Kit for 2000-2004 Oldsmobile Alero 3.4L V6
    Special Price $13.33 Regular Price $18.99
  39. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 2006-2008 Buick Lucerne
    Special Price $13.61 Regular Price $18.99
  40. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Lower Fuel Injector O-Ring Kit for 2004 Saturn L300 2.2L L4
    Special Price $13.61 Regular Price $18.99
  41. Fel-Pro Fuel Injector O-Ring Kit
    Fel-Pro Fuel Injector O-Ring Kit for 1999-2004 Oldsmobile Alero
    Special Price $13.61 Regular Price $18.99
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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.