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. Wells Exhaust Gas Recirculation (EGR) Valve
    Wells WVE 4F1329 EGR Valve
    Special Price $39.29 Regular Price $55.99
  2. Wells Exhaust Gas Recirculation (EGR) Valve
    Wells WVE EGR Valve for 2009-2011 Mercury Mariner Milan 3.0L V6
    Special Price $118.64 Regular Price $168.99
    Out of stock
  3. Wells Exhaust Gas Recirculation (EGR) Valve
    Wells WVE EGR Valve for 2009-2012 Ford Escape Fusion 3.0L V6
    Special Price $118.64 Regular Price $168.99
    Out of stock
  4. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 2000-2005 GMC Safari 4.3L V6
    Special Price $13.16 Regular Price $18.99
    Out of stock
  5. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1988-1990 Plymouth Horizon
    Special Price $18.74 Regular Price $26.99
  6. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 2008-2012 Jeep Liberty 3.7L V6
    Special Price $20.71 Regular Price $29.99
    Out of stock
  7. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1986-1995 Ford Escort 1.8L 1.9L L4
    Special Price $20.98 Regular Price $29.99
    Out of stock
  8. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1990-1995 Lincoln Town Car 4.6L 5.0L V8
    Special Price $21.00 Regular Price $29.99
  9. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1991-1996 Buick Park Avenue 3.8L V6
    Special Price $21.12 Regular Price $29.99
  10. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1985-1986 Pontiac Parisienne 4.3L V6
    Special Price $21.12 Regular Price $29.99
  11. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1986-1992 Oldsmobile Toronado 3.8L V6
    Special Price $21.12 Regular Price $29.99
  12. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 2005-2010 Dodge Ram 2500 5.7L 5.9L 6.7L L6 V8
    Special Price $21.14 Regular Price $29.99
    Out of stock
  13. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 2007-2017 Jeep Compass 2.0L 2.4L L4
    Special Price $21.14 Regular Price $29.99
    Out of stock
  14. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1980-1984 Ford F-350 6.6L 7.5L V8
    Special Price $21.29 Regular Price $29.99
    Out of stock
  15. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1984-1987 Buick Regal 3.8L V6
    Special Price $21.56 Regular Price $30.99
  16. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1985-1990 Buick Electra 3.0L 3.8L V6
    Special Price $21.56 Regular Price $30.99
  17. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1987-1992 Cadillac Allante 4.1L 4.5L V8
    Special Price $21.56 Regular Price $30.99
  18. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1982-1992 Cadillac Seville 4.1L 4.5L 4.9L V8
    Special Price $21.56 Regular Price $30.99
  19. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 2004-2009 Hummer H2 6.0L 6.2L V8
    Special Price $23.22 Regular Price $32.99
    Out of stock
  20. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 2005-2006 GMC Sierra 1500 HD 6.0L V8
    Special Price $23.22 Regular Price $32.99
    Out of stock
  21. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 2005-2009 Chevrolet Uplander 3.5L 3.9L V6
    Special Price $23.69 Regular Price $33.99
    Out of stock
  22. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 2004-2013 GMC Yukon XL 2500 6.0L 8.1L V8
    Special Price $23.69 Regular Price $33.99
    Out of stock
  23. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2004-2017 Chevrolet Silverado 2500
    Special Price $26.84 Regular Price $37.99
  24. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2004-2014 Chevrolet Suburban 1500
    Special Price $26.84 Regular Price $37.99
  25. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2004-2015 Chevrolet Malibu
    Special Price $27.39 Regular Price $38.99
  26. GMB Fuel Tank Lock Ring
    GMB Fuel Tank Lock Ring for 2001-2003 Chevrolet Silverado 1500 HD 6.0L V8
    Special Price $28.89 Regular Price $40.99
  27. Wells Exhaust Gas Recirculation (EGR) Valve
    Wells WVE 4F1001 EGR Valve
    Special Price $64.24 Regular Price $91.99
  28. Wells Exhaust Gas Recirculation (EGR) Valve
    Wells WVE EGR Valve for 1998-2001 Nissan Altima 2.4L L4
    Special Price $83.32 Regular Price $118.99
  29. Wells Exhaust Gas Recirculation (EGR) Valve
    Wells WVE 4F2069 EGR Valve
    Special Price $98.76 Regular Price $140.99
    Out of stock
  30. Wells Exhaust Gas Recirculation (EGR) Valve
    Wells WVE 4F1842 EGR Valve
    Special Price $114.74 Regular Price $163.99
  31. Delphi Sparta Fuel Tank Lock Ring
    Delphi Sparta PN9003 Fuel Tank Lock Ring
    Special Price $5.81 Regular Price $7.99
  32. Carter Fuel Tank Lock Ring
    Carter TLR12 Fuel Tank Lock Ring
    Special Price $6.01 Regular Price $8.99
    Out of stock
  33. Delphi Fuel Tank Lock Ring
    Delphi FA10023 Fuel Tank Lock Ring
    Special Price $6.11 Regular Price $8.99
  34. Airtex Fuel Tank Lock Ring
    Airtex LR3003 Fuel Tank Lock Ring
    Special Price $8.66 Regular Price $11.99
    Out of stock
  35. Carter Fuel Tank Lock Ring
    Carter TLR10 Fuel Tank Lock Ring
    Special Price $9.57 Regular Price $13.99
    Out of stock
  36. Carter Fuel Tank Lock Ring
    Carter TLR9 Fuel Tank Lock Ring
    Special Price $10.41 Regular Price $14.99
    Out of stock
  37. Carter Fuel Tank Lock Ring
    Carter TLR5 Fuel Tank Lock Ring
    Special Price $10.67 Regular Price $14.99
  38. Carter Fuel Tank Lock Ring
    Carter TLR8 Fuel Tank Lock Ring
    Special Price $10.67 Regular Price $14.99
  39. Carter Fuel Tank Lock Ring
    Carter TLR6 Fuel Tank Lock Ring
    Special Price $10.88 Regular Price $15.99
  40. Carter Fuel Tank Lock Ring
    Carter TLR14 Fuel Tank Lock Ring
    Special Price $12.08 Regular Price $16.99
    Out of stock
  41. Carter Fuel Tank Lock Ring
    Carter TLR1 Fuel Tank Lock Ring
    Special Price $12.45 Regular Price $17.99
  42. Carter Fuel Tank Lock Ring
    Carter TLR3 Fuel Tank Lock Ring
    Special Price $12.61 Regular Price $17.99
    Out of stock
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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.