2001-2024 6.6L Duramax Streetfighter Short Block (SFD)

After you have made your purchase, please follow the steps listed below to receive your refundable Core charge. This process must be completed within 60 days of receiving your product(s). Failure to send us the core(s) within the 60 day timeframe will result in you only receiving a partial refund amount of the core deposit. 

1) On the outside of the ORIGINAL box, please write "Core Return" and your Original Invoice Number/Order Number.

2) Ship your core with tracking to:

Unit 6 - 1060 Stevens Road, West Kelowna BC Canada V1Z1A3 

3) Once we receive the Core here at the shop, it will be inspected to ensure that it is rebuildable. After the inspection is passed, your core charge will then be refunded (giving you more money for truck parts!).

Note: 

• Dirty Diesel Customs does not cover return shipping costs for core items. You are responsible for all shipping expenses associated with returning their core.
• If you have purchased a BD Diesel product, please follow their core-return program which can be found here.
• If you have purchased a Fleece Performance product that has a core charge, please follow the Fleece Performance Core Return instructions found here.
• If you have purchased a Randys Transmission product, we must receive the core no later than 30 Days after the product delivery date. 
• Failure to follow these steps may result in a delay/denial of your core refund.
• Failure to send us the core(s) within the 60-day timeframe will result in you only receiving a partial refund amount of the core deposit. 
• 0-60 Days: Full Deposit if the core passes the inspection.
• 61-120 Days: 25% of your eligible core refund amount will be deducted.
• 121-182 Days: 50% of your eligible core refund amount will be deducted.
  
• 183+ Days: Your Core Charge is no longer refundable

Let us know if you have any questions or concerns. We can be reached at 778-754-7090 or feel free to email sales@dirtydieselcustoms.com.