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. 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
  2. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro ES 75116 Exhaust Manifold Hardware Kit
    Rating:
    100%
    Special Price $34.19 Regular Price $48.99
  3. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1997-2010 Ford F-150 4.6L 5.4L V8
    Special Price $39.15 Regular Price $55.99
  4. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1992-2011 Mercury Grand Marquis 4.6L V8
    Special Price $39.15 Regular Price $55.99
  5. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Right Exhaust Manifold Hardware Kit for 1997 Ford F-250 HD 5.8L V8
    Special Price $41.87 Regular Price $59.99
  6. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro ES 75119 Exhaust Manifold Hardware Kit
    Special Price $42.56 Regular Price $60.99
  7. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1999-2004 GMC Sierra 2500 5.3L 6.0L V8
    Special Price $43.98 Regular Price $62.99
  8. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1991-2001 Jeep Cherokee 4.0L L6
    Special Price $44.61 Regular Price $63.99
  9. 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
  10. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 2007 GMC Sierra 1500 HD Classic 6.0L V8
    Special Price $44.88 Regular Price $63.99
  11. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1992-1999 GMC C2500 Suburban 5.7L V8
    Special Price $52.76 Regular Price $74.99
  12. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1992-1999 GMC K1500 Suburban 5.7L V8
    Special Price $52.76 Regular Price $74.99
  13. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1988-2000 Chevrolet K2500 5.0L 5.7L V8
    Special Price $52.76 Regular Price $74.99
  14. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1992-2000 GMC Yukon 5.7L V8
    Special Price $53.84 Regular Price $76.99
  15. 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
  16. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1995-2000 Chevrolet Tahoe 5.7L V8
    Special Price $53.84 Regular Price $76.99
  17. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro ES 75118 Exhaust Manifold Hardware Kit
    Special Price $28.88 Regular Price $40.99
  18. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro ES 75114 Exhaust Manifold Hardware Kit
    Special Price $32.06 Regular Price $45.99
  19. 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
  20. 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
  21. 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
  22. 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
  23. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro ES 75120 Exhaust Manifold Hardware Kit
    Special Price $33.56 Regular Price $47.99
  24. 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
  25. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 2001-2002 Qvale Mangusta 4.6L V8
    Special Price $38.36 Regular Price $54.99
  26. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 2002 Lincoln Blackwood 5.4L V8
    Special Price $38.36 Regular Price $54.99
  27. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 1999-2000 Panoz AIV Roadster 4.6L V8
    Special Price $38.36 Regular Price $54.99
  28. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 2001-2007 Panoz Esperante 4.6L V8
    Special Price $38.36 Regular Price $54.99
  29. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 2005-2006 Ford GT 5.4L V8
    Special Price $38.36 Regular Price $54.99
  30. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 2003-2004 Mercury Marauder 4.6L V8
    Special Price $38.36 Regular Price $54.99
  31. Fel-Pro Exhaust Manifold Hardware Kit
    Fel-Pro Exhaust Manifold Hardware Kit for 2003-2005 Lincoln Aviator 4.6L V8
    Special Price $38.36 Regular Price $54.99
  32. Dorman EGR Vacuum Modulator
    Dorman 911-609 EGR Vacuum Modulator
    Special Price $38.68 Regular Price $54.99
    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.