Technical Service Bulletin

A small number of our 2010-2014 Dodge Cummins 6.7L EGR deletes shipped to cusomters with a non-Viton o-ring on the coolant hose connector. The issue has since been remedied and all units are now shipped with the correct Viton o-ring. If you have purchased a Sinister Diesel EGR Delete Kit for a 2010-2014 Dodge Cummins 6.7L and have experienced leaking around the coolant hose connector o-ring, please fill out this form and we will send you a new updated o-ring to remedy this issue. If you have any questions, please don't hesitate to contact us at 916-772-9253 for additional information.

In case we need to contact you about your order, a home, work, or cell number is required.