Product review (3 stars): STOP.....before you buy read this
If you are buying this for a Samsung Top Loading Washer model: WA400PJHDWR/AA, check out the report at: http://www.saferproducts.gov/ViewIncident/1399901
The same thing happened to my washer this weekend 10 Jan 2015.  I purchased the washer in Nov 2012. So its 2 years out of factory warranty and 1 month out of the extended 2 year warranty we purchased.
The good news is that Samsung agreed to replace the pump at no cost to me.  All it took was 1 email and 1 phone call.