For Sale Western Unimount Rebuilt Pump Isarmatic mark III Part #49253 Rebuild done by Western snow plowsÂ trained technician. This pump requires core. This pump was completely disassembled, all seals and worn parts replaced, filled with Western genuine oil and painted using Western original paint. Pump fully tested. 30 Day warranty. For more information, please call 201-642-PLOW (7569) We ship nationwide.