ELITE EATON HYDRO TRANSAXLE 778045 / 1687181SM / 010504. FITS MURRAY CRAFTSMAN ZT7000 HYDRO TRANSMISSION 1687181SM / 010504 / 778045. Note that Murray – Snapper – Simplicity are owned by Briggs and Stratton. Packaging may have Briggs lettering, but this is an OEM part. MSRP 1,699.00. 107.277700 (2277700) – Craftsman ZT7000 Series 50 Zero-Turn Mower, Hydro, 18hp (2004). ZT 1644 E (1694862) – Simplicity 44 Zero-Turn Mower, 16hp Hydro. ZT 1644 E (2690431) – Simplicity 44 Zero-Turn Mower, 16hp Hydro (2005).