Serial Number Designations The serial number is important to have when ordering replacement parts. Beginning in 1985, the following nomenclature was implemented A = Jan. B = Feb. C = March D = April E = May F = June 85 Year the unit was built G = July H = Aug. I = Sept. J = Oct. K = Nov. L = Dec. A 0000 Month unit was built 5 numbers always follow the letter. In November 2005, the following nomenclature was implemented for products manufactured out of our new ERP System, SAP. 10344333 8-digit numeric serial number 06 Year 10 Month (This unit was built in October 2006) 6|Page