FASS Fuel System for 6.7L Cummins

A proven fuel system upgrade designed to protect injectors and improve fuel delivery on 6.7L Cummins trucks.

The FASS Fuel System for 6.7L Cummins is a proven upgrade designed to improve fuel delivery, enhance filtration, and protect your injectors from fuel starvation and contamination. If you rely on your truck for towing, daily driving, or long-term reliability, a quality fuel system upgrade is essential.

Factory fuel systems can struggle to maintain consistent fuel pressure under load, especially on modified or high-mileage trucks. The FASS system delivers a steady supply of clean, air-free fuel to your injection system, helping extend injector life and improve overall engine performance.

Trusted by diesel owners nationwide, the FASS Fuel System is one of the most popular reliability upgrades for 6.7L Cummins trucks.

KEY FEATURES

• Improves fuel flow and pressure consistency

• Enhances fuel filtration for cleaner fuel delivery

• Helps protect injectors from premature wear

• Reduces fuel aeration and cavitation

• Supports stock and modified trucks

• Ideal for towing, daily driving, and longevity

Designed for 6.7L Cummins diesel engines.
Please confirm year and application before ordering to ensure proper fitment.

FAQS

Why upgrade the fuel system on a 6.7L Cummins?

Upgrading the fuel system helps ensure consistent fuel delivery, improves filtration, and protects injectors — especially under towing or heavy load conditions.

Is a FASS Fuel System good for stock trucks?

Yes. Many owners install a FASS system on stock trucks to improve reliability and fuel system longevity.

Does this add horsepower?

The primary benefit is improved fuel delivery and injector protection. While throttle response may improve, the main goal is reliability and consistent performance.