Just thought I would share some of my information in my files. I have a 2000 Onan 10 kw model HDCAA and have used these files to locate part numbers and proper fitment for my application.
981-0259 Onan HDCAA HDCAB (spec A-D) Diesel Mobile Genset Parts manual (10-2013) 981-0525 Onan HDCAA HDCAB HDCAC HDCAD (spec A-D) Isuzu 3LA1 3LB1 3LD1 Diesel Engine Workshop Service manual 2nd Ed (04-1994)
