United States - Import Price Index (Harmonized System): Diesel and semi-diesel internal combustion piston engines was 97.30000 Index Dec 2011=100 in December of 2018, according to the United States Federal Reserve. Historically, United States - Import Price Index (Harmonized System): Diesel and semi-diesel internal combustion piston engines reached a record high of 103.10000 in June of 2012 and a record low of 94.70000 in August of 2016. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - Import Price Index (Harmonized System): Diesel and semi-diesel internal combustion piston engines - last updated from the United States Federal Reserve on March of 2024.