The drivetrain is what gets power from the engine to the wheels. When a part fails, your car isn’t going anywhere. That’s where we come in. Sixity Auto is your source for top-quality car drivetrain parts that get the job done right without the steep price tag. We carry reliable components for your vehicle that meet or exceed original specifications. So, whether you need to swap out that drive belt or some driveshaft joints, you’re in the right place.
Your Go-To Source for Drivetrain Auto Parts and More
Our catalog is packed with quality drivetrain parts and everything else you need to keep your vehicle running like new. All our parts are built for an OEM-like fit and made from materials that offer long-term durability without any extravagant markups. At Sixity Auto, we believe that quality doesn’t have to cost a fortune; that’s why our prices are set to beat local auto parts stores and dealerships every time.
Shop Car Drivetrain Parts With Confidence
We get it: buying parts online can be a gamble. That’s why we back every part with our 100% fitment guarantee. We’ve been at this for over 20 years and have shipped over 10 million parts. We’re a brand you can trust.
Get Help From Our US-Based Experts
Do you want dependable customer service from a US-based team? Call us with any questions about our aftermarket transmission parts. Whether you need to confirm a part number or ask about your order, we’re here to help you find quality drivetrain auto parts and get your project done.
Frequently Asked Questions
What’s included in a car’s drivetrain?
The drivetrain includes everything that gets power from the engine to the wheels, like the transmission, driveshaft, axles, and differentials.
Why should I choose aftermarket drivetrain parts over OEM?
Our aftermarket car drivetrain parts give you the same (or better) performance and reliability as OEM parts because they are made to meet or beat the original specs — just without the high dealership prices.
How does the 100% fitment guarantee work for drivetrain parts?
It’s our promise that the drivetrain auto parts you buy from us will fit your vehicle as advertised. No guesswork, no hassle.












FAST & FREE SHIPPINGOn eligible items
At SixityAuto.com, we offer free shipping on thousands of eligible items. We also ship FAST. Over 99% of all items ordered will ship within one business day. Plus, we ship from our strategically located warehouses on the East and West Coast to save precious shipping time.
100% FITMENT GUARANTEEYour parts will fit as advertised
Shop with confidence, knowing that your purchase from Sixity Auto will fit your vehicle. If after purchase you determine that your part does not fit the vehicle we advertised, simply contact us to initiate a return. We want your parts to fit!
RAVE REVIEWS5-Star Rated on Sitejabber
Don't take it from us - check out our feedback from our customers! Sixity Auto has partnered with Sitejabber, the industry leader in tracking customer loyalty and feedback, to bring genuine product and customer service reviews.
Plus read thousands of authentic reviews on Trustpilot, Google, Reseller Ratings, the Better Business Bureau, and more!
WE'RE HERE TO HELP(888) 679-6279Monday through Friday, 8am-8pm Eastern
We speak your language. Our staff has decades of experience selling auto parts to enthusiasts like you. Whether it's for your car, truck, or van, we have staff on hand that can answer your questions and make sure you get the part you're looking for.
For phone sales or help with product fitment questions, our U.S.-based customer service staff in California and Indiana is available weekdays, 8am-8pm ET.
BUILT FOR BUSINESSTax-exempt shopping available
Sixity Auto works with a wide range of business customers—from repair shops and dealerships to fleet operators, government organizations, and others that purchase parts for resale or operational use.
If you are a qualified tax-exempt or resale customer, submit your documentation and we'll set you up for tax-free shopping. Check out all the details here.
MILITARY DISCOUNTSave 10% on every purchase
Sixity Auto is proud to support our Active-Duty Service Members, Vets, and their immediate families. To show a token of our thanks, we extend a 10% discount on your entire purchase, every single day.
We use VerifyPass (formerly ID Discount) to help us manage our Military Discount program. Click here for all the details!













