This is an Enderle Large "Barn Door" Injector Body, too long for a 671 or an 871 blower. It is meant for the longer blower series as the mounting holes are nearly 2" longer than a 671, measuring approximately 13 3/8 inches long end-to-end. The injector is polished and appears to have no issues and weighs 11 1/2 lbs. Shipping will be the buyer's responsibility. When is the last time you've seen one of these for sale?