Turbocharger Actuator 3776171 3776171N for Cummins Diesel Engine. Note: This Actuator already contains the program. All Actuator will have to be calibrated with scan tool. Turbocharger Actuator 3776171N for Cummins Diesel Engine. Replace Part Number: 3776171N, 3776171. Fit For Cummins Diesel Engine. It is mandatory to check part numbers prior to ordering. Please make sure it is correct. If you don’t receive package over 30 business workdays, please notify us. We appreciate your Postive Feedback, and will do the same in return. We believe our items are so outstanding. All products are quality checked. Otherwise deal is final. We will be happy to resolve any issues you may have in a cordial and friendly manner.