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High Mountain Horsepower is a used heavy truck and parts dealer based in Spokane Valley, Washington, with more than 75 years of combined experience in the industry. We have a large selection of used trucks for sale from such popular brands as Freightliner, International, Kenworth, and Peterbilt. We also specialize in quality parts, including PACCAR components; JOST fifth wheels; Allison and Eaton Fuller transmissions; Caterpillar, Cummins, and Detroit engines; and Dana Spicer, Hendrickson, and Rockwell axles. We also carry fuel tanks, bumpers, fairings, hoods, radiators, and more.