Auxiliary Fuel Filter Kit, Fits 2001-2012 LB7/LLY/LBZ/LMM Chevy/GMC 2500HD/3500 6.5' Short Bed Duramax Diesel, Uses CAT Fuel Filter 2 micron
Help protect your Duramax Diesel Injectors with this Auxiliary CAT Fuel Filter Kit for your GM 2001-2012 Duramax Truck. This is a complete kit consisting of the filter head, mounting bracket, tall filter, lines, fittings, clamps, and full-color directions. The installation is straight-forward and will work with either the stock (OEM) or TransferFlow replacement fuel tanks. The bracket is CNC cut from one piece of 3/16" steel and features an integrated deflector plate to guard against road debris. It comes in a black, powder-coated finish. Spare filters CAT Part # 1R-0749 are reasonably priced and can be found here or at any CAT dealer
The Duramax Diesel Engine uses a high-pressure Bosch common-rail fuel injection system. This injection system is very sensitive to contaminants, which is why fuel filtration is so important in promoting long, healthy injector and fuel system life. The current US Spec. diesel fuel is not clean enough for these high-pressure (up to 28,000 PSI) injection systems.
According to a research study conducted by CAT, the 7 micron particle has been shown to be the cause of accelerated fuel pump and injector wear. CAT filters are manufactured to the highest level of quality in a plant specifically designed to produce 'zero tolerance' filters. CAT has built a factory that builds the filter from beginning to end without a human being touching the filter. Filter manufacture can be a tedious, boring process, resulting in human error.
CAT filter medium is a combined synthetic cellulose element which results in excellent filter dirt capacity yet with excellent cold weather flow characteristics. A 100% cellulose filter has a high amount of inherent water in its construction. As a cellulose filter approaches freezing, the water in the filter begins to expand, restricting flow on what is already thickened fuel. In the CAT synthetic blend medium, the medium is much less affected by cold temperatures, providing excellent cold flow characteristics. That said, when one is purchasing fuel from a fuel source that may or may not be winter blended, the use of an additive such as Primrose 409 will never hurt. Primrose 409 will reduce pour point 20 to 30 degrees (depending on fuel) to provide more than enough protection for just about any environment. Primrose 409 is essentially 405 with pour point depressant, so we also tie up free water. Free water can/will freeze anywhere it exists in the system further exacerbating winter running conditions/startup problems. By tying up the free water, no freezing can occur, further assisting.. Also, no free water to absorb into the cellulose medium, reducing filter swell, allowing the medium to flow better in cold weather.
The OEM filter has been shown to be something over 50% efficient filtering the 7 micron particle size. Given the amount of contaminants in diesel fuel, fuel system life is going to be greatly compromised without the use of a supplemental fuel filter such as the Auxiliary CAT Fuel Filter Kit.
The use of the Auxiliary CAT Fuel Filter Kit is a very inexpensive fuel insurance policy that will pay for itself in greatly increased system life and significant fuel efficiency/power gain.
The use of the Auxiliary CAT Fuel Filter Kit will allow the OEM fuel filter to work more efficiently resulting in a synergistic relationship with the two filters. Clearly the key to extended fuel system life is the combination of both clean and water/bacteria free fuel.
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