Tier 4 Final (<751 hp) Fluids and Filtration

def containersDiesel Exhaust Fluid (DEF)

DEF is a critical element of the Tier 4 Final aftertreatment system. The DEF you purchase should meet and display certification for one or more of the following standards: American Petroleum Institute (API), German Institute of Standardization DIN70700 or the International Organization of Standardization (ISO) 2224-1. DEF is widely available throughout North America and Europe. Popular websites such as finddef.com and discoverdef.com provide guidance on purchase outlets.

Maintaining Fuel Cleanliness and Quality

nanonet filterCummins Tier 4 Final engines must be operated on Ultra-Low Sulfur Diesel (ULSD) with a maximum sulfur content of 15 ppm or less. This is a regulatory requirement; failure to do so will result in damage to the engine and aftertreatment system within a short period of time. This damage could cause the engine and aftertreatment to become inoperable, and failures attributable to the use of incorrect fuels will be denied warranty coverage. The High Pressure Common Rail (HPCR) fuel systems used for all Tier 4 Final engines require a new level of cleanliness. Internal components such as the fuel injectors can be damaged by particles as small as 5 microns. Injector wear reduces engine performance and fuel efficiency – and can lead to severe damage of other engine components. Fleetguard fuel filters with NanoNet media provide up to 13 times better protection against harmful particles, particularly under high vibration and fuel surge conditions.

Low Ash Lube Oil

Ash from in-cylinder combustion can plug up your aftertreatment system. Using a low-ash engine oil promotes cleaner combustion and helps the aftertreatment system perform optimally. Recommended engine oils such as API CJ-4 or ACEA-E9 engine oil should be used.

air filterCummins Direct Flow™ Air Filtration

Cummins Direct Flow Air Cleaner holds 30 percent more dust particles than conventional filters in 50 percent less space, enabling longer service intervals. Replace primary and secondary filter elements as recommended for maximum airflow. With enhanced filtration efficiency, Direct Flow offers the opportunity to extend filter service intervals and reduce operating costs.

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