The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
Enter your vehicle info so we can recommend the right products for you.
Can't find it? Call us at 866-737-4966 for free advice.
Water Meth Inj Kits
We specialize in diesel performance parts, if you do not see what you are looking for, stop clicking and call us at 866-737-4966 for free advice.
We offer a huge selection of stock replacement parts for your diesel!
Diesel Tips Shirts
Show your support with a Thoroughbred Diesel t-shirt, sweatshirt, or sticker decal.
Make heads turn with custom truck accessories from Thoroughbred Diesel.
Diamond Eye Performance
DPF Upgrade Kits
What is a Core?
Many stock replacement parts such as turbos, injectors, injection pumps, and high pressure oil pumps have a core charge that is associated with the new replacement part. You must return the old part to receive a refund on the core charge. All cores must be like for like and include all parts and pieces that were received on your new replacement product.
Core Return Label
The core return label is a new option offered by Thoroughbred Diesel to customers that buy products that have a core charge. For a small fee Thoroughbred Diesel will send you a core return tag either to your email or right to your mail box. This will save you money on the return shipping and will make sure your cores get returned correctly. The label will be insured to protect your core. This will make it a complete hassle free process. Only available for the 48 contiguous states. If you have any questions on it contact firstname.lastname@example.org.
No upfront Core Charge
Thoroughbred Diesel has implemented a policy on many products that eliminates the upfront core charge at the time of purchase to reduce the out of pocket cost for customers. On parts that are not charged a core, you will have 14 business days from the time you receive the product to get the core back to Thoroughbred. You will be sent a pre-paid shipping label separate through email. If you have any problems contact email@example.com.
PayPal & All Other Non-Credit Card Orders
All non-credit card orders, such as PayPal and eBay, will require that we have a credit card on file on orders where the core wasn’t charge upfront. The on file credit card will not be charged unless the core is not returned in the specified time frame. A Thoroughbred Diesel Sales Agent will contact you to obtain a credit card for your order.
Core Physical Condition
All cores must be in re-buildable condition to receive a full refund of the core charge. There are some conditions that you will not receive full credit. On these conditions it is up to the manufacture on the amount of credit issued.
Core Charge Timeline
Core Return Procedure
*If you are charged for the core upfront you are responsible for the return shipping cost.
*If for any reason, you decide to return the part, DO NOT use the return label provided because it will be processed as a core.
*Customers outside the continental US (lower 48 states) will be responsible for shipping the core back. UPS return service labels can only be sent to customers in the lower 48 US states.
*If you are responsible for shipping the core back to Thoroughbred Diesel, please provide a tracking number to firstname.lastname@example.org. Without a confirmed tracking number, we cannot guarantee your core refund.