S&S Diesel Motorsport Regulated Fuel Filter Head – FDS-RFH-ASM (6.7 Cummins)

The S&S Diesel Motorsport Regulated Filter Head (FDS-RFH-ASM) is a compact, high-performance fuel filtration and regulation solution designed for 6.7L Cummins applications. It combines a built-in pressure regulator, stock Cummins mounting flange, pre- and post-filter pressure ports, and a 4-port fuel distribution block into one durable unit.

Engineered from billet 6061 aluminum with hard-coat anodizing and a steel insert for the filter threads, it resists wear, oxidation, and corrosion under demanding conditions. It pairs with the S&S SP3000 Supply Pump to create a complete Fuel Delivery System capable of supporting setups from daily-driven trucks to race applications exceeding 3,000 horsepower. Multiple regulator springs are included so you can select the correct pressure for your build (available options include 5, 15, 120, 140, and 180 psi). The regulator port can also be blocked off if you only need filtration.

Key Features

• Built-in pressure regulator optimized for zero-chatter operation
• Stock Cummins mounting flange for straightforward installation
• Pre-filter and post-filter pressure sensing ports (1/8" NPT)
• 4-port fuel distribution block
• Hard-coat anodized billet 6061 aluminum body with steel filter thread insert
• Includes Donaldson 3-micron fuel filter (P551311 or equivalent; 99% efficiency at 3 microns)
• Tested to 3,000 liters per hour
• Works with all CP3 configurations
• Suitable for daily driver through race use

This is the regulated filter head used in S&S Diesel Motorsport high-flow fuel delivery systems for serious 6.7 Cummins builds.