CATERPILLAR ENGINES
C4 / C6 / C9
The Caterpillar C4, C6, and C9 engines are mid-range diesel engine families commonly used in medium-duty trucks, buses, construction equipment, agricultural equipment, industrial machines, generators, and marine applications.
- They are often found in equipment that sees mixed-duty operation, including stop-and-go work, long idle time, dusty jobsite conditions, off-road vibration, seasonal storage, and varying fuel quality depending on whether the engine is in a truck, machine, generator, or marine setup.
- Engine Displacement
- C4 → 4.4 L
- C6 → 6.6 L
- C9 → 8.8 L
- A FASS System can:
- Help C4, C6, and C9 engines because these Caterpillar mid-range engines often work in dirty, high-vibration, fuel-storage-heavy environments where water, sediment, tank debris, and fuel aeration can shorten injector life, cause hard starts, reduce power under load, and create fuel restriction issues before the factory fuel system ever gets a chance to do its job.
- Makes secondary filter post maintenance priming unnecessary.
C7 ACERT / C9 ACERT / C15 ACERT
The Caterpillar C7 ACERT, C9 ACERT, and C15 ACERT are electronically controlled, turbocharged Cat diesel engines built with Caterpillar’s Advanced Combustion Emissions Reduction Technology (ACERT).
- The Caterpillar C7 ACERT, C9 ACERT, and C15 ACERT engines are electronically controlled diesel engines used in medium-duty trucks, vocational trucks, buses, RVs, construction equipment, agricultural equipment, industrial machines, and heavy-duty highway tractors.
- Engine Displacement
- C7 ACERT → 7.2 L
- C9 ACERT → 8.8 L
- C15 ACERT → 15.2 L
- A FASS System can:
- Help Caterpillar ACERT engines because their electronically controlled injection systems and emissions-era combustion strategy depend on stable, restriction-free fuel supply, and many C7, C9, and C15 ACERT applications are now old enough to deal with tank debris, water contamination, suction-side leaks, fuel aeration, and filter restriction that can contribute to hard starts, injector wear, low power under load, rough idle, and poor throttle response.
- Makes secondary filter post maintenance priming unnecessary.
C10 / C12 / C13 / C15 / C16 / C18
The Caterpillar C10, C12, C13, C15, C16, and C18 engines are heavy-duty inline-6 diesel engines used in Class 8 trucks, vocational equipment, construction machines, industrial power units, marine applications, and generators.
- These engines range from lighter heavy-duty and vocational use with the C10/C12, to fleet highway and construction use with the C13/C15, to higher-horsepower severe-duty, heavy-haul, marine, generator, and industrial applications with the C16/C18.
- Engine Displacement
- C10 → 10.3 L
- C12 → 12.0 L
- C13 → 12.5 L
- C15 → 15.2 L
- C16 → 15.8 L
- C18 → 18.1 L
- A FASS System can:
- Help Caterpillar engines because many of them operate in high-load, high-fuel-demand applications where restriction, aeration, water contamination, or aging tanks and fuel lines can cause hard starts, injector wear, low power under load, rough idle, poor throttle response, and inconsistent fuel delivery before the factory fuel system can maintain the pressure and volume the engine needs.
- Makes secondary filter post maintenance priming unnecessary.
3126
The Caterpillar 3126 is a medium-duty inline-6 diesel engine commonly used in box trucks, school buses, medium-duty Freightliner and International trucks, RVs, tow trucks, utility trucks, and some marine or industrial applications.
- The 3126 is a 7.2L electronically controlled diesel engine that commonly used Caterpillar’s HEUI fuel system, where high-pressure engine oil is used to hydraulically actuate the injectors.
- Engine Displacement
- 3126 → 7.2 L
- A FASS System can:
- Help the Caterpillar 3126 because the HEUI injectors are expensive and sensitive to fuel quality, and many older 3126-powered trucks now deal with tank debris, water contamination, fuel restriction, suction-side leaks, and aeration that can contribute to hard starts, rough idle, weak throttle response, injector wear, and low power under load.
- Makes secondary filter post maintenance priming unnecessary.
3406B
The Caterpillar 3406B is a heavy-duty inline-6 diesel engine commonly used in Class 8 highway trucks, vocational trucks, construction equipment, agricultural equipment, generators, and industrial applications.
- It is especially known in older Peterbilt, Kenworth, Freightliner, International, and vocational trucks where owners value its simplicity, torque, rebuildability, and ability to work hard without modern electronics or emissions complexity.
- Engine Displacement
- 3406B → 14.6 L
- A FASS System can:
- Help the 3406B because its older mechanical injection system still depends heavily on steady fuel volume and clean supply, and many 3406B trucks now have aged tanks, old fuel lines, suction leaks, sediment, algae, or water contamination that can cause hard starts, fuel starvation under load, injector wear, smoke, poor throttle response, and loss of pulling power.
- Makes secondary filter post maintenance priming unnecessary.
3406E
The Caterpillar 3406E is a heavy-duty inline-6 diesel engine commonly used in Class 8 highway trucks, vocational trucks, heavy-haul applications, construction equipment, industrial power units, and some marine or generator setups.
- It is especially common in older Peterbilt, Kenworth, Freightliner, International, and Western Star trucks where owners like its balance of mechanical strength, electronic control, strong torque, and pre-ACERT simplicity.
- Engine Displacement
- 3406E → 14.6 L
- A FASS System can:
- Help the 3406E because its electronic injectors need consistent fuel supply and clean fuel to perform correctly, while many older 3406E trucks now deal with aging tanks, suction-side leaks, fuel aeration, water contamination, and restriction that can cause hard starts, rough idle, injector wear, low power under load, and inconsistent throttle response.
- Makes secondary filter post maintenance priming unnecessary.
CATERPILLAR ENGINES
Caterpillar diesel engines are well-known powerplants used in trucks, construction equipment, agriculture, marine, industrial machines, generators, and power-unit applications. They are recognized for durable heavy-duty performance, electronic engine controls on later models, and a wide range of sizes from compact industrial engines to large high-horsepower platforms. Exact parts and service requirements depend on the engine model, serial number, emissions label, and application.
Need a FASS System for an engine that is not listed contact us below and we can discuss a solution for you.
