Check valves are now NLA - We only have a limited stock left! Fits 1980 to 1985 U.S. 240D, 300D, 300CD, 300TD and 300SD - Full Repair kits NLA, but we can offer this kit to help improve vacuum output.
121 page PDF troubleshooting manual by Kent Bergsma. Learn how to diagnose problems YOURSELF on the older 1961 to 1985 OM615 OM616 and OM617 rugged diesel engines.