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Old 09-05-2022, 08:05 PM   #52
Bad Moon
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Join Date: Apr 2016
Location: Medford
Posts: 498
M.O.C. #18546
No, the Duramax diesels have not used Bosch CP4 pumps since 2016. Starting with the 2017 model year, the Duramax has used Denso HP4 pump and Denso injectors. A far better unit than the Bosch.
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