I am looking for service manual for Murry lawn mover model #21745X41B, if any one know where I can get it.

Hi Najamb,

Try the manuals online website. I believe it is lawnandgarden.manualsonline.com
They have all sorts of manuals for lawn mowers. Good luck to you.

Murray is now owned by Small Engines, Lawn Mower Engines and Generators by Briggs & Stratton (http://www.briggsandstratton.com). There is also a Walk-Behind Mowers - Riding Mowers - Tractors - Cultivators - Snowthrowers | Murray (http://www.murray.com) website.

I did come up empty.

If you know the model/type and code and it's a briggs engine, parts breakdown and engine service should be available there. Engine service will cost $.

This came up empty, too. http://www.outdoordistributors.com/Murray/Murraypartslists.html