Tier 4 Without Tears

By 2015 all new off-road diesel equipment will be Tier 4 compliant, requiring additional maintenance considerations.

Dec 20, 2012 | by Peter Kenter |

Tier 4 Diesel Particulate Filter (DPF) U.S. Environmental Protection Agency (EPA)

Tier 4 Without Tears — Standards for off-road vehicles with engines of 25 to 74 hp will be implemented in January 2013, and 75 to 749 hp beginning January 2014 and concluding in January 2015. Canadian regulations are designed to mirror those of the EPA, but at slightly later implementation dates. (Photos courtesy of John Deere)

Tier 4 Without Tears — Standards for off-road vehicles with engines of 25 to 74 hp will be implemented in January 2013, and 75 to 749 hp beginning January 2014 and concluding in January 2015. Canadian regulations are designed to mirror those of the EPA, but at slightly later implementation dates. (Photos courtesy of John Deere)

Tier 4 Without Tears — Standards for off-road vehicles with engines of 25 to 74 hp will be implemented in January 2013, and 75 to 749 hp beginning January 2014 and concluding in January 2015. Canadian regulations are designed to mirror those of the EPA, but at slightly later implementation dates. (Photos courtesy of John Deere)

Tier 4 Without Tears — Standards for off-road vehicles with engines of 25 to 74 hp will be implemented in January 2013, and 75 to 749 hp beginning January 2014 and concluding in January 2015. Canadian regulations are designed to mirror those of the EPA, but at slightly later implementation dates. (Photos courtesy of John Deere)

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Final Tier 4 (FT4) diesel engines standards have already been implemented for newly manufactured on-road vehicles with the 2010 EPA emission regulations, but the switch has just begun for off-road vehicles. Off-road diesel owners need to understand the specific maintenance needs of these engines, and where state or local end-user regulations may require them to use Tier 4 equipment. Manufacturers must meet the EPA's FT4 requirements according to engine horsepower range. Standards for off-road vehicles with engines of 25 to 74 hp will be implemented in January 2013, and 75 to 749 hp beginning

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