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. Hitachi Fuel Pump Driver Module
    Hitachi Astemo FPC2926-HU Fuel Pump Driver Module
    Special Price $56.03 Regular Price $79.99
  2. Hitachi Fuel Pump Driver Module
    Hitachi Astemo FPC2921-HU Fuel Pump Driver Module
    Special Price $72.05 Regular Price $102.99
  3. GMB Fuel Tank Lock Ring
    GMB Fuel Tank Lock Ring for 2000-2003 Chevrolet Suburban 2500 6.0L 8.1L V8
    Special Price $28.89 Regular Price $40.99
  4. Dorman Fuel Pump Driver Module
    Dorman Fuel Pump Driver Module for 2015-2018 Ford Transit-350 HD 3.2L L5
    Special Price $69.63 Regular Price $98.99
  5. Dorman Fuel Pump Driver Module
    Dorman Fuel Pump Driver Module for 2009-2015 Ford E-350 Super Duty
    Special Price $71.05 Regular Price $101.99
  6. Walker Exhaust Elbow
    Walker 41818 Exhaust Elbow
    Special Price $9.07 Regular Price $12.99
  7. Delphi Sparta Fuel Tank Lock Ring
    Delphi Sparta Fuel Tank Lock Ring for 1996-2000 Chevrolet K3500 5.7L 6.5L 7.4L V8
    Special Price $14.87 Regular Price $20.99
  8. Delphi Sparta Fuel Tank Lock Ring
    Delphi Sparta Fuel Tank Lock Ring for 2000-2005 Buick LeSabre 3.8L V6
    Special Price $15.18 Regular Price $21.99
  9. Delphi Sparta Fuel Tank Lock Ring
    Delphi Sparta Fuel Tank Lock Ring for 2000-2005 GMC Safari 4.3L V6
    Special Price $15.18 Regular Price $21.99
  10. Delphi Fuel Tank Lock Ring
    Delphi Fuel Tank Lock Ring for 2002-2004 Oldsmobile Silhouette 3.4L V6
    Special Price $15.19 Regular Price $21.99
  11. Delphi Fuel Tank Lock Ring
    Delphi Fuel Tank Lock Ring for 1997-2002 Cadillac Eldorado 4.6L V8
    Special Price $15.19 Regular Price $21.99
  12. Delphi Fuel Tank Lock Ring
    Delphi Fuel Tank Lock Ring for 1997-2004 Cadillac Seville 4.6L V8
    Special Price $15.50 Regular Price $21.99
  13. Delphi Fuel Tank Lock Ring
    Delphi Fuel Tank Lock Ring for 2004-2009 Cadillac XLR 4.4L 4.6L V8
    Special Price $15.50 Regular Price $21.99
  14. Delphi Fuel Tank Lock Ring
    Delphi Fuel Tank Lock Ring for 2005-2009 Chevrolet Equinox 3.4L 3.6L V6
    Special Price $15.50 Regular Price $21.99
  15. Airtex Fuel Tank Lock Ring
    Airtex Fuel Tank Lock Ring for 2001-2003 GMC Sierra 1500 HD 6.0L V8
    Special Price $16.61 Regular Price $23.99
    Out of stock
  16. Airtex Fuel Tank Lock Ring
    Airtex Fuel Tank Lock Ring for 2002-2004 Chevrolet Trailblazer 4.2L L6
    Special Price $16.61 Regular Price $23.99
    Out of stock
  17. Airtex Fuel Tank Lock Ring
    Airtex Fuel Tank Lock Ring for 2000 Buick Century 3.1L V6
    Special Price $16.61 Regular Price $23.99
    Out of stock
  18. Airtex Fuel Tank Lock Ring
    Airtex Fuel Tank Lock Ring for 2000 Buick Regal 3.8L V6
    Special Price $16.95 Regular Price $23.99
    Out of stock
  19. Airtex Fuel Tank Lock Ring
    Airtex Fuel Tank Lock Ring for 2003-2004 Chevrolet Express 1500 4.3L 5.3L V6 V8
    Special Price $16.95 Regular Price $23.99
    Out of stock
  20. Airtex Fuel Tank Lock Ring
    Airtex Fuel Tank Lock Ring for 2001-2003 GMC Sierra 2500 HD 6.0L 8.1L V8
    Special Price $16.95 Regular Price $23.99
    Out of stock
  21. Airtex Fuel Tank Lock Ring
    Airtex Fuel Tank Lock Ring for 2004 Buick Rainier 4.2L 5.3L L6 V8
    Special Price $16.95 Regular Price $23.99
    Out of stock
  22. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1997-2000 Pontiac Grand Prix 3.1L 3.8L V6
    Special Price $17.46 Regular Price $24.99
    Out of stock
  23. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1994-1995 Plymouth Voyager 2.5L 3.0L 3.3L L4 V6
    Special Price $18.85 Regular Price $26.99
  24. Walker Exhaust Elbow
    Walker 41098 Exhaust Elbow
    Special Price $20.50 Regular Price $28.99
  25. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1993-1996 Lincoln Mark VIII 4.6L V8
    Special Price $21.00 Regular Price $29.99
  26. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1985-1993 Chevrolet S10 2.5L 2.8L 4.3L L4 V6
    Special Price $21.56 Regular Price $30.99
  27. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1986-1999 Buick LeSabre 3.0L 3.8L V6
    Special Price $21.56 Regular Price $30.99
  28. Walker Exhaust Elbow
    Walker 41437 Exhaust Elbow
    Special Price $22.91 Regular Price $32.99
  29. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2007-2017 Chevrolet Cheyenne
    Special Price $27.39 Regular Price $38.99
  30. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2006-2016 Chevrolet Colorado
    Special Price $27.39 Regular Price $38.99
  31. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2004-2017 Chevrolet Tahoe
    Special Price $27.39 Regular Price $38.99
  32. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2009-2019 Chevrolet Express Cargo
    Special Price $27.39 Regular Price $38.99
  33. Walker Exhaust Elbow
    Walker 41685 Exhaust Elbow
    Special Price $27.99 Regular Price $39.99
    Out of stock
  34. GMB Fuel Tank Lock Ring
    GMB Fuel Tank Lock Ring for 1999-2003 GMC Sierra 2500 5.3L 6.0L V8
    Special Price $28.89 Regular Price $40.99
  35. GMB Fuel Tank Lock Ring
    GMB Fuel Tank Lock Ring for 2002-2004 Chevrolet Trailblazer 4.2L L6
    Special Price $28.89 Regular Price $40.99
  36. GMB Fuel Tank Lock Ring
    GMB Fuel Tank Lock Ring for 1999-2004 Oldsmobile Bravada 4.2L 4.3L L6 V6
    Special Price $28.89 Regular Price $40.99
  37. GMB Fuel Tank Lock Ring
    GMB Fuel Tank Lock Ring for 2000-2003 Chevrolet Tahoe 4.8L 5.3L V8
    Special Price $29.48 Regular Price $41.99
  38. Walker Exhaust Elbow
    Walker 41769 Exhaust Elbow
    Special Price $52.22 Regular Price $74.99
    Out of stock
  39. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 2000-2003 GMC Yukon XL 2500 6.0L 8.1L V8
    Special Price $52.46 Regular Price $74.99
  40. Walker Exhaust Elbow
    Walker 41532 Exhaust Elbow
    Special Price $58.05 Regular Price $82.99
    Out of stock
  41. Hitachi Fuel Pump Driver Module
    Hitachi Astemo Fuel Pump Driver Module for 2009-2012 Audi Q5 2.0L 3.2L L4 V6
    Special Price $69.52 Regular Price $98.99
  42. Dorman Fuel Pump Driver Module
    Dorman Fuel Pump Driver Module for 2009-2014 Ford E-250
    Special Price $69.63 Regular Price $98.99
  43. Dorman Fuel Pump Driver Module
    Dorman Fuel Pump Driver Module for 2011 Ford Edge
    Special Price $69.63 Regular Price $98.99
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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.