Melling Select Performance SB Ford 351W Hi-Volume Oil Pump - 25% Volume Increase - Bolt-On Pickup SPBXL4 Replacement fuel pressure regulator diaphragm

Replacement fuel pressure regulator diaphragm repair kit for Holley 12-803BP fuel pressure regulator

and 5" bolt circles

100 in Long

Sizes 5-16

1/8" NPT sensor

Melling Select Performance SB Ford 351W Hi-Volume Oil Pump - 25% Volume Increase - Bolt-On Pickup SPBXL4 Replacement fuel pressure regulator diaphragmMelling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. High volume performance upgrade for M 83. 25% increased volume over stock pump. Gerotor set assembled to an extended drive shaft that allows for additional support in the cover. Supporting the drive shaft in both the housing and cover eliminates dynamic shaft deflection at increased RMP levels. The cover is doweled to