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 Vacuum Pump
    Dorman Vacuum Pump for 2015-2018 Ford Transit-150 3.5L V6
    Special Price $166.22 Regular Price $236.99
  2. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 2002-2005 Mercury Mountaineer 4.6L V8
    Special Price $39.15 Regular Price $55.99
  3. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1994-1997 Ford Thunderbird 4.6L V8
    Special Price $39.15 Regular Price $55.99
  4. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1997-1999 Ford F-250 4.6L 5.4L V8
    Special Price $39.15 Regular Price $55.99
  5. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Right Exhaust Manifold Hardware Kit for 1976 Ford P-350 6.6L V8
    Special Price $41.87 Regular Price $59.99
  6. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Right Exhaust Manifold Hardware Kit for 1976 Ford P-400 6.6L V8
    Special Price $42.73 Regular Price $60.99
  7. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 2001-2016 GMC Sierra 2500 HD 6.0L V8
    Special Price $44.88 Regular Price $63.99
  8. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 2008-2010 Hummer H3 5.3L V8
    Special Price $44.88 Regular Price $63.99
  9. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1996-2002 GMC Savana 3500 5.7L V8
    Special Price $52.76 Regular Price $74.99
  10. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1999-2000 Cadillac Escalade 5.7L V8
    Special Price $52.76 Regular Price $74.99
  11. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1987-1996 GMC G3500 5.7L V8
    Special Price $53.84 Regular Price $76.99
  12. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1988-1999 Chevrolet K1500 5.0L 5.7L V8
    Special Price $53.84 Regular Price $76.99
  13. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1992-1999 GMC K2500 Suburban 5.7L V8
    Special Price $53.84 Regular Price $76.99
  14. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1996-2002 GMC Savana 2500 5.0L 5.7L V8
    Special Price $53.84 Regular Price $76.99
  15. Holstein Engine Variable Valve Timing (VVT) Adjuster Magnet
    2 pc Holstein Variable Timing Adjuster Magnets for 2013-2015 BMW 320i xDrive 2.0L L4
    Special Price $100.60 Regular Price $143.99
    Out of stock
  16. Dorman TECHoice Vacuum Pump
    Dorman TECHoice Vacuum Pump for 1999-2010 Ford F-250 Super Duty 6.0L 6.4L 7.3L V8
    Special Price $126.12 Regular Price $179.99
  17. Dorman TECHoice Vacuum Pump
    Dorman TECHoice Vacuum Pump for 2000-2003 Ford E-350 Super Duty 7.3L V8
    Special Price $126.12 Regular Price $179.99
  18. Dorman TECHoice Vacuum Pump
    Dorman TECHoice Vacuum Pump for 2003-2004 Dodge Ram 3500 5.9L L6
    Special Price $128.69 Regular Price $183.99
  19. Dorman Vacuum Pump
    Dorman TECHoice Vacuum Pump for 1999-2007 Ford F-350 Super Duty 6.0L 7.3L V8
    Special Price $128.69 Regular Price $183.99
  20. Dorman Vacuum Pump
    Dorman Vacuum Pump for 2015-2019 Chevrolet Tahoe 5.3L 6.2L V8
    Special Price $224.33 Regular Price $319.99
  21. Dorman TECHoice Vacuum Pump
    Dorman TECHoice Vacuum Pump for 1994-2002 Dodge Ram 3500 5.9L L6
    Special Price $299.85 Regular Price $427.99
  22. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro ES 75118 Exhaust Manifold Hardware Kit
    Special Price $28.88 Regular Price $40.99
  23. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro ES 75114 Exhaust Manifold Hardware Kit
    Special Price $32.06 Regular Price $45.99
  24. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 2011-2015 Ram 3500 6.7L L6
    Special Price $32.45 Regular Price $45.99
    Out of stock
  25. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 2004-2010 Dodge Ram 2500 5.9L 6.7L L6
    Special Price $32.45 Regular Price $45.99
    Out of stock
  26. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 2004-2010 Dodge Ram 3500 5.9L 6.7L L6
    Special Price $33.12 Regular Price $46.99
    Out of stock
  27. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 2011-2015 Ram 2500 6.7L L6
    Special Price $33.12 Regular Price $46.99
    Out of stock
  28. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro ES 75120 Exhaust Manifold Hardware Kit
    Special Price $33.56 Regular Price $47.99
  29. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro ES 75116 Exhaust Manifold Hardware Kit
    Rating:
    100%
    Special Price $34.19 Regular Price $48.99
  30. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1995-2002 Lincoln Continental 4.6L V8
    Special Price $38.36 Regular Price $54.99
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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.