1、Fitment: This impeller housing is professionally designed and manufactured, perfect replacement for MD40B2 14. GEAR CASE (DRIVE SHAFT) MD30/40/50B2 2014; Replacement for MD50B2 14. GEAR CASE (DRIVE SHAFT) MD30/40/50B2 2014; Replacement for MFS40A 11. GEAR CASE (DRIVE SHAFT) 2014; Replacement for MFS50A 11. GEAR CASE (DRIVE SHAFT) 2014. 2、OEM: The OEM of this impeller housing are 3T5650180M and 3C8‑65016‑1 for reference, please check the part number of your item before purchasing. 3、Durable Construction: Our impeller housing is made from stable material for maximum durability and reliability, which has a long service life. 4、Exquisite Workmanship: Rust proof and has great sealing, more flexible and wear resistant, reduces maintenance costs and easy to install. 5、Direct Replacement: Completely conforms to OEM standard, and can directly replace the old or worn part for time and labor saving.