2007.5-2018 Cummins Regulated Return Fuel Distribution Block Fleece Performance GM Silverado/Sierra " Improved clutch holding capacity for

2007.5-2018 Cummins Regulated Return Fuel Distribution Block Fleece Performance GM Silverado/Sierra " Improved clutch holding capacity for2007. 5 2018 Cummins Regulated Return Fuel Distribution Block. The Fleece Performance Cummins Regulated Return Fuel Distribution block takes our standard fuel distribution block to the next level by fully integrating a high flow pressure regulator. This feature in combination with high flow aftermarket electric fuel pumps without built in pressure regulation provides more consistent fuel pressure at the CP3. It also has one additional return line

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