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.

Select Your Vehicle

Filter By Part Details
View as Grid List

Items 1-48 of 1032

Set Ascending Direction
  1. AISIN Engine Timing Belt Tensioner Hydraulic Assembly
    AISIN Timing Belt Tensioner Hydraulic Assembly for 2001-2006 Lexus LS430 4.3L V8
    Rating:
    100%
    Special Price $48.38 Regular Price $68.99
  2. AISIN Engine Timing Belt Tensioner Hydraulic Assembly
    AISIN Timing Belt Tensioner Hydraulic Assembly for 1990-2000 Lexus LS400 4.0L V8
    Rating:
    100%
    Special Price $48.38 Regular Price $68.99
  3. AISIN Engine Timing Belt Tensioner Hydraulic Assembly
    AISIN Timing Belt Tensioner Hydraulic Asm for 2006-2010 Dodge Charger 3.5L V6
    Special Price $54.50 Regular Price $77.99
  4. Delphi Fuel Tank Lock Ring
    Delphi Fuel Tank Lock Ring for 2001-2005 Pontiac Montana 3.4L V6
    Special Price $15.19 Regular Price $21.99
  5. Walker Exhaust Elbow
    Walker 41098 Exhaust Elbow
    Special Price $20.50 Regular Price $28.99
  6. Carter Fuel Tank Lock Ring
    Carter Fuel Tank Lock Ring for 1985-1994 Chevrolet Astro 2.5L 4.3L L4 V6
    Special Price $21.56 Regular Price $30.99
  7. Dorman Fuel Tank Lock Ring
    Dorman Fuel Tank Lock Ring for 2004-2015 Chevrolet Malibu
    Special Price $27.39 Regular Price $38.99
  8. GMB Fuel Tank Lock Ring
    GMB Fuel Tank Lock Ring for 1999-2004 Oldsmobile Bravada 4.2L 4.3L L6 V6
    Special Price $28.89 Regular Price $40.99
  9. AISIN Engine Timing Belt Tensioner Hydraulic Assembly
    AISIN BTT-002 Timing Belt Tensioner Hydraulic Assembly
    Special Price $61.56 Regular Price $87.99
  10. AISIN Engine Timing Belt Tensioner Hydraulic Assembly
    AISIN Timing Belt Tensioner Hydraulic Assembly for 2001-2002 Acura MDX 3.5L V6
    Special Price $101.49 Regular Price $144.99
  11. Gates PowerGrip Engine Timing Belt Tensioner Hydraulic Assembly
    Gates PowerGrip Timing Belt Tensioner Hydraulic Asm for 2002-2005 Kia Sedona 3.5L V6
    Special Price $123.02 Regular Price $175.99
  12. Delphi Sparta Fuel Tank Lock Ring
    Delphi Sparta PN9003 Fuel Tank Lock Ring
    Special Price $5.81 Regular Price $7.99
  13. Carter Fuel Tank Lock Ring
    Carter TLR12 Fuel Tank Lock Ring
    Special Price $6.01 Regular Price $8.99
    Out of stock
  14. Delphi Fuel Tank Lock Ring
    Delphi FA10023 Fuel Tank Lock Ring
    Special Price $6.11 Regular Price $8.99
  15. Walker Exhaust Elbow
    Walker 41001 Exhaust Elbow
    Special Price $8.43 Regular Price $11.99
    Out of stock
  16. Airtex Fuel Tank Lock Ring
    Airtex LR3003 Fuel Tank Lock Ring
    Special Price $8.66 Regular Price $11.99
    Out of stock
  17. Walker Exhaust Elbow
    Walker 41733 Exhaust Elbow
    Special Price $8.91 Regular Price $12.99
  18. Walker Exhaust Elbow
    Walker 41818 Exhaust Elbow
    Special Price $9.07 Regular Price $12.99
    Out of stock
  19. Carter Fuel Tank Lock Ring
    Carter TLR10 Fuel Tank Lock Ring
    Special Price $9.57 Regular Price $13.99
    Out of stock
  20. Walker Exhaust Elbow
    Walker 41816 Exhaust Elbow
    Special Price $10.37 Regular Price $14.99
  21. Carter Fuel Tank Lock Ring
    Carter TLR9 Fuel Tank Lock Ring
    Special Price $10.41 Regular Price $14.99
    Out of stock
  22. Carter Fuel Tank Lock Ring
    Carter TLR5 Fuel Tank Lock Ring
    Special Price $10.67 Regular Price $14.99
  23. Carter Fuel Tank Lock Ring
    Carter TLR8 Fuel Tank Lock Ring
    Special Price $10.67 Regular Price $14.99
  24. Carter Fuel Tank Lock Ring
    Carter TLR6 Fuel Tank Lock Ring
    Special Price $10.88 Regular Price $15.99
  25. Walker Exhaust Elbow
    Walker 41000 Exhaust Elbow
    Special Price $11.10 Regular Price $15.99
    Out of stock
  26. Carter Fuel Tank Lock Ring
    Carter TLR14 Fuel Tank Lock Ring
    Special Price $12.08 Regular Price $16.99
    Out of stock
  27. Carter Fuel Tank Lock Ring
    Carter TLR1 Fuel Tank Lock Ring
    Special Price $12.45 Regular Price $17.99
  28. Carter Fuel Tank Lock Ring
    Carter TLR3 Fuel Tank Lock Ring
    Special Price $12.61 Regular Price $17.99
    Out of stock
Page
per page

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.