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. MAHLE Engine Valve Cover Gasket
    MAHLE VS50426S Engine Valve Cover Gasket
    Special Price $11.77 Regular Price $16.99
  2. MAHLE Engine Valve Cover Gasket
    MAHLE VS39564 Valve Cover Gasket
    Special Price $11.78 Regular Price $16.99
  3. MAHLE Engine Valve Cover Gasket
    MAHLE VS50419 Engine Valve Cover Gasket
    Special Price $17.55 Regular Price $24.99
  4. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1988-1994 Dodge B250
    Special Price $21.07 Regular Price $29.99
  5. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1983-1989 Plymouth Reliant
    Special Price $21.07 Regular Price $29.99
  6. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1982-1993 Dodge D250
    Special Price $21.07 Regular Price $29.99
  7. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1988-1994 Dodge B350
    Special Price $21.51 Regular Price $30.99
  8. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1988-1994 Dodge B350
    Special Price $21.51 Regular Price $30.99
  9. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1988-1995 Plymouth Grand Voyager
    Special Price $21.51 Regular Price $30.99
  10. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1988-1994 Plymouth Sundance
    Special Price $21.51 Regular Price $30.99
  11. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1982-1993 Dodge D150
    Special Price $21.51 Regular Price $30.99
  12. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1985 Chrysler Executive Limousine
    Special Price $21.51 Regular Price $30.99
  13. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1988-1995 Dodge Grand Caravan
    Special Price $21.51 Regular Price $30.99
  14. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1983-1984 Chrysler Executive Sedan
    Special Price $21.51 Regular Price $30.99
  15. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 2003-2004 Mercury Marauder
    Special Price $23.82 Regular Price $33.99
  16. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1998-2006 Mercury Grand Marquis
    Special Price $24.31 Regular Price $34.99
  17. MAHLE Engine Valve Cover Gasket
    MAHLE VS50658SL Engine Valve Cover Gasket
    Special Price $265.51 Regular Price $378.99
  18. MAHLE Engine Valve Cover Gasket
    MAHLE VS50427S Valve Cover Gasket
    Special Price $5.53 Regular Price $7.99
  19. MAHLE Engine Valve Cover Gasket
    MAHLE VS50060 Engine Valve Cover Gasket
    Special Price $8.13 Regular Price $11.99
  20. MAHLE Engine Valve Cover Gasket
    MAHLE VS38425 Valve Cover Gasket
    Special Price $8.41 Regular Price $11.99
    Out of stock
  21. MAHLE Engine Valve Cover Gasket
    MAHLE VS39687 Valve Cover Gasket
    Special Price $11.46 Regular Price $15.99
  22. MAHLE Engine Valve Cover Gasket
    MAHLE VS39747 Engine Valve Cover Gasket
    Special Price $11.51 Regular Price $15.99
  23. MAHLE Engine Valve Cover Gasket
    MAHLE VS50608 Valve Cover Gasket
    Special Price $12.67 Regular Price $17.99
  24. MAHLE Engine Valve Cover Gasket
    MAHLE VS39751 Engine Valve Cover Gasket
    Special Price $12.68 Regular Price $17.99
  25. Dorman Fuel Filler Neck Seal
    Dorman 577-500 Fuel Filler Neck Seal
    Special Price $13.05 Regular Price $18.99
  26. MAHLE Engine Valve Cover Gasket
    MAHLE VS30020 Valve Cover Gasket
    Special Price $13.89 Regular Price $19.99
    Out of stock
  27. MAHLE Engine Valve Cover Gasket
    MAHLE VS50746 Engine Valve Cover Gasket
    Special Price $15.02 Regular Price $20.99
  28. MAHLE Engine Valve Cover Gasket
    MAHLE VS50916 Valve Cover Gasket
    Special Price $15.04 Regular Price $20.99
  29. MAHLE Engine Valve Cover Gasket
    MAHLE VS39693 Valve Cover Gasket
    Special Price $15.69 Regular Price $21.99
  30. Dorman Fuel Filler Neck Seal
    Dorman 577-501 Fuel Filler Neck Seal
    Special Price $15.71 Regular Price $21.99
  31. MAHLE Engine Valve Cover Gasket
    MAHLE VS50284 Engine Valve Cover Gasket
    Special Price $16.01 Regular Price $22.99
  32. MAHLE Engine Valve Cover Gasket
    MAHLE VS50437 Valve Cover Gasket
    Special Price $16.14 Regular Price $22.99
  33. MAHLE Engine Valve Cover Gasket
    MAHLE VS50000TC Valve Cover Gasket
    Special Price $16.79 Regular Price $23.99
  34. MAHLE Engine Valve Cover Gasket
    MAHLE VS50888 Engine Valve Cover Gasket
    Special Price $18.29 Regular Price $25.99
  35. MAHLE Engine Valve Cover Gasket
    MAHLE VS38432 Valve Cover Gasket
    Special Price $19.00 Regular Price $26.99
  36. MAHLE Engine Valve Cover Gasket
    MAHLE Valve Cover Gasket for 2005-2006 Acura MDX 3.5L V6
    Special Price $19.35 Regular Price $27.99
  37. MAHLE Engine Valve Cover Gasket
    MAHLE VS50710 Valve Cover Gasket
    Special Price $19.52 Regular Price $27.99
  38. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1982-1990 Plymouth Horizon
    Special Price $21.07 Regular Price $29.99
  39. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1982-1990 Dodge Omni
    Special Price $21.07 Regular Price $29.99
  40. Dorman Fuel Filler Neck Seal
    Dorman Fuel Filler Neck Seal for 1982-1984 Dodge Rampage
    Special Price $21.07 Regular Price $29.99
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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.