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. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1978-2003 Pontiac Grand Prix
    Special Price $16.70 Regular Price $23.99
  2. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1967-1997 Chevrolet Camaro
    Special Price $17.05 Regular Price $23.99
  3. Dorman Turbocharger Coolant Line
    Dorman Return Turbo Coolant Line for 2011-2016 Chevrolet Cruze 1.4L L4
    Special Price $38.04 Regular Price $53.99
  4. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1975-1978 GMC K25 Suburban
    Special Price $16.70 Regular Price $23.99
  5. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1947-1950 GMC FC280
    Special Price $17.05 Regular Price $23.99
  6. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1954 Chevrolet 1500
    Special Price $17.05 Regular Price $23.99
  7. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1947 GMC EC283
    Special Price $17.05 Regular Price $23.99
  8. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1975-1978 GMC C15
    Special Price $17.05 Regular Price $23.99
  9. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 2004-2007 Mercury Monterey
    Special Price $20.43 Regular Price $28.99
  10. Rein Turbocharger Coolant Line
    Rein TCH0190 Turbo Coolant Line
    Special Price $21.68 Regular Price $30.99
  11. Gates Turbocharger Coolant Line
    Gates Return Turbo Coolant Line for 2011-2016 Ford F-250 Super Duty 6.7L V8
    Special Price $38.19 Regular Price $54.99
  12. Dorman Turbocharger Coolant Line
    Dorman Return Turbo Coolant Line for 2011-2016 Ford F-350 Super Duty 6.7L V8
    Special Price $39.76 Regular Price $56.99
  13. Rein Turbocharger Coolant Line
    Rein Return Turbo Coolant Line for 2012-2018 BMW 320i 2.0L L4
    Special Price $60.07 Regular Price $85.99
  14. Rein Turbocharger Coolant Line
    Rein Return Turbo Coolant Line for 2015-2016 BMW 428i Gran Coupe 2.0L L4
    Special Price $60.07 Regular Price $85.99
  15. Rein Turbocharger Coolant Line
    Rein Return Turbo Coolant Line for 2015-2018 BMW X4 2.0L L4
    Special Price $60.07 Regular Price $85.99
  16. Rein Turbocharger Coolant Line
    Rein Return Turbo Coolant Line for 2015-2016 BMW 228i xDrive 2.0L L4
    Special Price $60.07 Regular Price $85.99
  17. Rein Turbocharger Coolant Line
    Rein Return Turbo Coolant Line for 2012-2016 BMW 528i 2.0L L4
    Special Price $60.07 Regular Price $85.99
  18. Rein Turbocharger Coolant Line
    Rein Supply Turbo Coolant Line for 2016-2018 BMW X5 2.0L L4
    Special Price $61.86 Regular Price $87.99
  19. Rein Turbocharger Coolant Line
    Rein Supply Left Turbo Coolant Line for 2012-2015 Mercedes-Benz ML550 4.7L V8
    Special Price $66.10 Regular Price $93.99
  20. Rein Turbocharger Coolant Line
    Rein Return Turbo To Pipe Turbo Coolant Line for 2012-2015 Audi A6 2.0L L4
    Special Price $109.06 Regular Price $155.99
  21. Rein Turbocharger Coolant Line
    Rein CHE0139R Turbo Coolant Line
    Special Price $5.77 Regular Price $7.99
  22. Rein Turbocharger Coolant Line
    Rein Return Turbo Coolant Line for 1997-2005 Audi A4 Quattro 1.8L L4
    Special Price $14.84 Regular Price $20.99
  23. Rein Turbocharger Coolant Line
    Rein Return Turbo Coolant Line for 1998-2005 Volkswagen Passat 1.8L L4
    Special Price $15.15 Regular Price $21.99
  24. Rein Turbocharger Coolant Line
    Rein Return Turbo Coolant Line for 1997-2006 Audi A4 1.8L L4
    Special Price $15.15 Regular Price $21.99
  25. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1946 Chevrolet CK
    Special Price $16.70 Regular Price $23.99
  26. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1959 Chevrolet 3C
    Special Price $16.70 Regular Price $23.99
  27. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1946 Chevrolet DR
    Special Price $16.70 Regular Price $23.99
  28. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1975-1986 Chevrolet C20
    Special Price $16.70 Regular Price $23.99
  29. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1975-1978 GMC P25
    Special Price $16.70 Regular Price $23.99
  30. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1985-2005 Chevrolet Astro
    Special Price $16.70 Regular Price $23.99
  31. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1967-1974 GMC G15 G1500 Van
    Special Price $16.70 Regular Price $23.99
  32. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1979-1999 GMC C1500 Suburban
    Special Price $16.70 Regular Price $23.99
  33. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1967 Chevrolet C20 Panel
    Special Price $16.70 Regular Price $23.99
  34. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1946 Chevrolet DS
    Special Price $16.70 Regular Price $23.99
  35. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1947-1950 GMC FC150
    Special Price $16.70 Regular Price $23.99
  36. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1950-1959 GMC Truck
    Special Price $16.70 Regular Price $23.99
  37. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1966 GMC PB2500 Van
    Special Price $16.70 Regular Price $23.99
  38. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1958 Chevrolet Yeoman
    Special Price $16.70 Regular Price $23.99
  39. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1959 Chevrolet 3E
    Special Price $16.70 Regular Price $23.99
  40. National Engine Timing Cover Harmonic Balancer Sleeve
    National Timing Cover Harmonic Balancer Sleeve for 1963-1965 GMC 1500 Series
    Special Price $16.70 Regular Price $23.99
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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.