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. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman 579-034 Fuel Tank Sending Unit Lock Ring
    Special Price $7.39 Regular Price $10.99
  2. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1985-1997 Ford F-250
    Special Price $23.99 Regular Price $33.99
  3. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1986-1991 Ford E-350 Econoline
    Special Price $24.48 Regular Price $34.99
  4. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1987-1992 Lincoln Mark VII
    Special Price $24.48 Regular Price $34.99
  5. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 2004-2007 Saturn Vue 3.5L V6
    Special Price $10.83 Regular Price $14.99
  6. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 2001-2020 Acura MDX 3.5L 3.7L V6
    Special Price $10.83 Regular Price $14.99
  7. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 1999-2020 Honda Odyssey 3.5L V6
    Special Price $10.83 Regular Price $14.99
  8. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 2014-2020 Acura RLX 3.5L V6
    Special Price $10.83 Regular Price $14.99
  9. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 1997-2003 Acura CL 3.0L 3.2L V6
    Special Price $10.83 Regular Price $14.99
  10. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 1998-2017 Honda Accord 3.0L 3.5L V6
    Special Price $10.83 Regular Price $14.99
  11. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 2010-2014 Acura TSX 3.5L V6
    Special Price $10.83 Regular Price $14.99
  12. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 2013-2018 Acura RDX 3.5L V6
    Special Price $10.83 Regular Price $14.99
  13. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 1999-2014 Acura TL 3.2L 3.5L 3.7L V6
    Special Price $10.83 Regular Price $14.99
  14. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 2015-2020 Acura TLX 3.5L V6
    Special Price $11.05 Regular Price $15.99
  15. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 2005-2012 Acura RL 3.5L 3.7L V6
    Special Price $11.05 Regular Price $15.99
  16. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 2006-2020 Honda Ridgeline 3.5L V6
    Special Price $11.05 Regular Price $15.99
  17. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 2012-2015 Honda Crosstour 3.5L V6
    Special Price $11.05 Regular Price $15.99
  18. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 2010-2013 Acura ZDX 3.7L V6
    Special Price $11.05 Regular Price $15.99
  19. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 2019-2020 Honda Passport 3.5L V6
    Special Price $11.05 Regular Price $15.99
  20. Fel-Pro Engine Oil Pressure Switch Seal
    Fel-Pro Engine Oil Pressure Switch Seal for 2003-2020 Honda Pilot 3.5L V6
    Special Price $11.05 Regular Price $15.99
  21. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1988-2002 Toyota Corolla
    Special Price $15.14 Regular Price $21.99
  22. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1996-2000 Toyota RAV4
    Special Price $15.14 Regular Price $21.99
  23. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1993-1997 Geo Prizm
    Special Price $15.14 Regular Price $21.99
  24. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1990-1991 Lexus ES250
    Special Price $15.14 Regular Price $21.99
  25. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1987-1991 Toyota Camry
    Special Price $15.14 Regular Price $21.99
  26. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1989-1995 Toyota 4Runner
    Special Price $15.46 Regular Price $21.99
  27. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1997-1999 Toyota Paseo
    Special Price $15.46 Regular Price $21.99
  28. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1987-1999 Toyota Tercel
    Special Price $15.46 Regular Price $21.99
  29. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman 579-004 Fuel Tank Sending Unit Lock Ring
    Special Price $15.89 Regular Price $22.99
  30. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1983-1988 Mercury Cougar
    Special Price $23.99 Regular Price $33.99
  31. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1983-1989 Mercury Grand Marquis
    Special Price $23.99 Regular Price $33.99
  32. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1983-1988 Ford Thunderbird
    Special Price $23.99 Regular Price $33.99
  33. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1997 Ford F-250 HD
    Special Price $23.99 Regular Price $33.99
  34. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1983-1988 Ford EXP
    Special Price $23.99 Regular Price $33.99
  35. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1985-1997 Ford F-350
    Special Price $23.99 Regular Price $33.99
  36. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1987-1991 Mercury Colony Park
    Special Price $23.99 Regular Price $33.99
  37. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1988-1994 Mercury Topaz
    Special Price $23.99 Regular Price $33.99
  38. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1983-1987 Lincoln Continental
    Special Price $23.99 Regular Price $33.99
  39. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1985-1988 Ford Ranger
    Special Price $23.99 Regular Price $33.99
  40. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1983 Mercury LN7
    Special Price $23.99 Regular Price $33.99
  41. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1983-1987 Mercury Lynx
    Special Price $23.99 Regular Price $33.99
  42. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1983-1990 Ford Escort
    Special Price $24.48 Regular Price $34.99
  43. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1985-1996 Ford F-150
    Special Price $24.48 Regular Price $34.99
  44. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1988-1994 Ford Tempo
    Special Price $24.48 Regular Price $34.99
  45. Dorman Fuel Tank Sending Unit Lock Ring
    Dorman Fuel Tank Sending Unit Lock Ring for 1985-1990 Ford Bronco II
    Special Price $24.48 Regular Price $34.99
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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.