2007.5-2018 Cummins Regulated Return Fuel Distribution Block Fleece Performance

Steady feed pressure at the CP3s

This is Fleece's fuel distribution block with a high-flow pressure regulator built in. Paired with a high-flow electric lift pump that has no regulator of its own, it holds feed pressure at the CP3 more consistently.

It adds a return port and a second feed port. The extra return lets you remove the factory relief valve and injector return hard lines to make room for a side-draft intake, and the two feed ports let you run two lift pumps. Fittings and hose to replace those hard lines are included.

Who it's for

Owners of 2007.5-2018 Ram 6.7L Cummins trucks running two 6.7L CP3s and high-flow lift pumps.

Key specs (per Fleece)

What's included

• Distribution block with built-in 20 psi regulated return
• Push-lock CP3 feed fittings (2)
• -6AN and -8AN push-lock fittings in straight, 45, 90 and 120 degree styles
• -6AN to M12 adapters and straight male adapter fittings
• -6AN (6 ft) and -8AN (4 ft) push-lock hose
• 0-60 psi gauge
• Stainless socket-head cap screws (2)

Fitment notes

• Fits 2007.5-2018 Ram 2500/3500 6.7L Cummins trucks (per Fleece).
• Built for a 6.7L rail with two 6.7L CP3 pumps; it also works on a 5.9L block set up the same way.
• Fleece sets 20 psi as the best point for high-rpm CP3 operation.
• The 1/2 in. (-8AN) or 3/8 in. (-6AN) supply and return lines to the tank are not included.

Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.