FASS Cummins Fuel Distribution Block | Triple CP3 Compatible
Jake H • October 1, 2025

The FASS Cummins Fuel Distribution Block is engineered for high-performance setups using up to three (3) CP3 injection pumps, though it’s equally effective for single or dual CP3 configurations.

Its balanced design ensures equal fuel flow and pressure to each pump, preventing starvation and promoting consistency.

Key Features & Benefits:

  • Equal Flow Distribution: Each of the three CP3 feed ports receives a smooth, uniform fuel supply for optimal pump operation.
  • Robust Design: Bolts directly to the engine block on 5.9L and 6.7L common-rail Cummins engines—no need for extra brackets or adapters.
  • High-Quality Ports & Fittings:
    • One
    −10 main fuel inlet
    • Three
    −8 CP3 feed ports
    • One
    −8 fuel return outlet
    • Four
    −6 return inlet ports (for CP3 return and cylinder head return)
    • Two
    1/8” NPT gauge ports included
  • Durable Construction: Built to handle high flow, high pressure environments without compromise.

Ideal Applications:

  • Performance trucks with up to three (3) CP3 injection pumps
  • Heavily modified trucks running multiple injection pumps
  • Any Cummins platform looking for cleaner, balanced fuel delivery across pumps

Why You Need It:

  • Prevents uneven fuel distribution that causes pump starvation or inconsistent performance
  • Ensures each CP3 pump is fed the same pressure and volume, protecting against over work or premature wear
  • Adds reliability and consistency for high output or high-demand builds


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