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 838

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  1. Dorman Engine Intake Manifold Runner Control Valve
    Dorman Intake Manifold Runner Control Valve for 2004-2009 Mazda 3 2.3L L4
    Special Price $111.41 Regular Price $158.99
    Out of stock
  2. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1987-1995 Dodge Caravan 2.5L 3.0L 3.3L L4 V6
    Special Price $19.23 Regular Price $26.99
  3. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1998-1999 GMC K1500 5.7L V8
    Special Price $13.16 Regular Price $18.99
    Out of stock
  4. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 2001-2003 Saturn LW300 3.0L V6
    Special Price $13.43 Regular Price $18.99
    Out of stock
  5. Delphi Sparta Fuel Tank Lock Ring
    Delphi Sparta Fuel Tank Lock Ring for 2005-2009 Chevrolet Equinox 3.4L 3.6L V6
    Special Price $15.18 Regular Price $21.99
  6. Delphi Fuel Tank Lock Ring
    Delphi Fuel Tank Lock Ring for 1996-2000 GMC K3500 5.7L 6.5L 7.4L V8
    Special Price $15.19 Regular Price $21.99
  7. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1987-1997 Ford F-350 4.9L 5.8L 7.5L L6 V8
    Special Price $20.98 Regular Price $29.99
    Out of stock
  8. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1986-1987 Oldsmobile Calais 2.5L 3.0L L4 V6
    Special Price $21.12 Regular Price $29.99
  9. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1991-1996 Ford Explorer 4.0L V6
    Special Price $21.41 Regular Price $30.99
    Out of stock
  10. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1985-1987 Chevrolet El Camino 4.3L V6
    Special Price $21.56 Regular Price $30.99
  11. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1987-1995 Chevrolet G10 4.3L 5.0L 5.7L V6 V8
    Special Price $21.56 Regular Price $30.99
  12. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2005-2009 GMC Envoy
    Special Price $26.84 Regular Price $37.99
  13. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2006-2011 Chevrolet HHR
    Special Price $26.84 Regular Price $37.99
  14. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2014-2016 Chevrolet SS
    Special Price $26.84 Regular Price $37.99
  15. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2011-2017 Buick Regal
    Special Price $26.84 Regular Price $37.99
  16. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2006-2017 Chevrolet Impala
    Special Price $26.84 Regular Price $37.99
  17. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2004-2017 GMC Sierra 2500 HD
    Special Price $27.39 Regular Price $38.99
  18. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2004-2015 Chevrolet Malibu
    Special Price $27.39 Regular Price $38.99
  19. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2006-2009 Pontiac Torrent
    Special Price $27.39 Regular Price $38.99
  20. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2004-2013 Chevrolet Suburban 2500
    Special Price $27.39 Regular Price $38.99
  21. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2004-2017 Chevrolet Tahoe
    Special Price $27.39 Regular Price $38.99
  22. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2010-2017 Chevrolet Camaro
    Special Price $27.39 Regular Price $38.99
  23. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2007-2017 GMC Sierra
    Special Price $27.39 Regular Price $38.99
  24. GMB Fuel Tank Lock Ring
    GMB Fuel Tank Lock Ring for 1999-2003 GMC Sierra 1500 4.3L 4.8L 5.3L 6.0L V6 V8
    Special Price $28.89 Regular Price $40.99
  25. GMB Fuel Tank Lock Ring
    GMB Fuel Tank Lock Ring for 2003 Hummer H2 6.0L V8
    Special Price $28.89 Regular Price $40.99
  26. GMB Fuel Tank Lock Ring
    GMB Fuel Tank Lock Ring for 2000-2003 GMC Yukon XL 1500 5.3L 6.0L V8
    Special Price $29.48 Regular Price $41.99
  27. GMB Fuel Tank Lock Ring
    GMB Fuel Tank Lock Ring for 2000-2003 Chevrolet Suburban 1500 5.3L 5.7L V8
    Special Price $29.48 Regular Price $41.99
  28. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 2001-2003 Chevrolet Silverado 1500 HD 6.0L V8
    Special Price $52.46 Regular Price $74.99
  29. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 2003 Hummer H2 6.0L V8
    Special Price $53.53 Regular Price $75.99
  30. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 2002-2004 Chevrolet Trailblazer 4.2L L6
    Special Price $53.53 Regular Price $75.99
  31. Dorman Engine Intake Manifold Runner Control Valve
    Dorman Intake Manifold Runner Control Valve for 2006-2013 Mazda 6 2.5L L4
    Special Price $66.77 Regular Price $94.99
  32. Dorman Engine Intake Manifold Runner Control Valve
    Dorman 911-902 Intake Manifold Runner Control Valve
    Special Price $108.41 Regular Price $154.99
  33. Dorman Engine Intake Manifold Runner Control Valve
    Dorman Intake Manifold Runner Control Valve for 2005-2008 Mercury Mariner 2.3L L4
    Special Price $113.69 Regular Price $161.99
    Out of stock
  34. Dorman Engine Intake Manifold Runner Control Valve
    Dorman Intake Manifold Runner Control Valve for 2014-2017 Infiniti QX60 3.5L V6
    Special Price $217.86 Regular Price $310.99
  35. Dorman Engine Intake Manifold Runner Control Valve
    Dorman Intake Manifold Runner Control Valve for 2002-2017 Nissan Maxima 3.5L V6
    Special Price $217.86 Regular Price $310.99
  36. Dorman Engine Intake Manifold Runner Control Valve
    Dorman Intake Manifold Runner Control Valve for 2005-2017 Nissan Frontier 4.0L V6
    Special Price $222.31 Regular Price $317.99
  37. Dorman Engine Intake Manifold Runner Control Valve
    Dorman Right Intake Manifold Runner Control Valve for 2007 Dodge Charger 3.5L V6
    Special Price $341.42 Regular Price $487.99
  38. Dorman Engine Intake Manifold Runner Control Valve
    Dorman Right Intake Manifold Runner Control Valve for 2007 Chrysler 300 3.5L V6
    Special Price $341.42 Regular Price $487.99
  39. Dorman Engine Intake Manifold Runner Control Valve
    Dorman Intake Manifold Runner Control Valve for 2007 Dodge Charger 2.7L 3.5L V6
    Special Price $341.42 Regular Price $487.99
  40. Delphi Sparta Fuel Tank Lock Ring
    Delphi Sparta PN9003 Fuel Tank Lock Ring
    Special Price $5.81 Regular Price $7.99
  41. Carter Fuel Tank Lock Ring
    Carter TLR12 Fuel Tank Lock Ring
    Special Price $6.01 Regular Price $8.99
    Out of stock
  42. Delphi Fuel Tank Lock Ring
    Delphi FA10023 Fuel Tank Lock Ring
    Special Price $6.11 Regular Price $8.99
  43. Airtex Fuel Tank Lock Ring
    Airtex LR3003 Fuel Tank Lock Ring
    Special Price $8.66 Regular Price $11.99
    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.