At Caterpillar, we know you’re under constant pressure to do more work at a lower total cost with less environmental impact. Our Tier 4 solutions help you do that. We redesigned the product line from the inside out, putting decades of innovation expertise to work on your behalf. The result is a new generation of engines that meets your high expectations for reliability, performance, fuel efficiency and component life, while producing significantly fewer emissions.
Systems integration boosts power, saves fuel
Cat® product designers work collaboratively, using advanced modeling
and analysis tools to integrate components, systems, electronics and
aftertreatment technologies. You benefit from our integration experience
as it allows us to optimize power, fuel economy and emissions reduction.
Integrated manufacturing improves quality
Our position as the largest vertically integrated manufacturer in our
business gives us the power to build premium-quality products. We
integrate manufacturing advancement into product designs and use
common production processes across the manufacturing base. As a
result, we can deliver exceptional quality right from the start.
Testing and validation enhance reliability
The newest generation of Cat engines has been subjected to the largest
testing and validation program in Caterpillar history. Powerful design tools
allow sophisticated simulation and analysis, and a comprehensive fieldtesting
program provides real-world validation. With more than one million
operating hours logged on test units, you can be confident in the quality
and value of your Cat Tier 4 investment.
TIER 4 EMISSIONS REDUCTION
Cat Tier 4 engines meet tough emissions standards and deliver the performance and efficiency that successful businesses demand. Like all manufacturers of diesel engines, Caterpillar is required to deliver engines that meet government emissions standards that are being phased-in throughout the United States, Canada, European Union and Japan.
CLEANER FUEL & OILS
Also part of the upcoming emissions standards, industry technology requires <15 parts per million (mg/kg) Ultra Low Sulfur Diesel Fuel (ULSD) for use in Tier 4 Interim engines. In Cat engines, not only will ULSD need to be used, but also low sulfated ash oils. These cleaner fuels and oils will help reduce ash and maintain service intervals, contributing to low emissions and reduced operating costs. The new Cat engines will also have B20 biodiesel capability, adding even greater sustainability where desired or required.
Emissions standards have been systematically reducing levels of Particulate Matter (PM) and Oxides of Nitrogen (NOx) since 1996 when the first standards went into effect.
From Tier 1 (1996) levels to Tier 3 (2006), emissions standards required an approximate 65 percent reduction in PM and a 60 percent reduction in NOx.
The current phase of emissions standards, called Tier 4 Interim in the U.S., took effect in 2011. Compared to Tier 3 levels, Tier 4 Interim standards require a 90 percent reduction in PM and a 50 percent decrease in NOx. Tier 4 Final standards, which will become effective in 2014, reduce NOx by an additional 80 percent, taking PM and NOx emissions to near-zero levels.
* Engines rated 56–130 bkW (75–175 bhp) are required to meet Tier 4 Interim standards in 2012 and Tier 4 Final regulations in 2015. Engines rated >560 bkW (750 bhp) will meet Tier 4 Interim standards in 2011 and Tier 4 Final regulations in 2015 (EPA only). Standards differ by power category.