There are websites like partstree.com or outdoordistributors.com that allow you to enter your mower's model number and you can bring up an illustrated parts drawing, look at those and it will have the numbers and if you are lucky even the sizes. May be able to find on Murray website also the same drawings. Note if older than 1993 you may not find drawings anywhere, I have not been able to yet for my 1993 Murray 14.5 Hp 42' riding mower.

• Briggs And Stratton Engine Manual
• Briggs And Stratton Ohv Manual

Briggs And Stratton Engine Manual

Also if the engine is the origingal and it is a Briggs and Statton, to find the manufacture date of the mower look for the model-type-code number on the shroud. Sometimes it is stamped sometimes it is on a plate. The last sequence of numbers is the date code. It starts with the last two numbers of the year, followed by the two digit month, then the two digit for the day and then a few other numbers after it. So if the date code is 010427xxxx then the motor was manufactured in 2001, on April 27th. This is the easiest way to get an approximation of a mowers age, if original engine and it is a Briggs and Stratton.

Jul 08, 2011. The Briggs and Stratton 450 series is the engine (4.5 Hp).

Briggs And Stratton Ohv Manual

Is there a model number on the mower deck anywhere? I can probably find you a manual but need that model number. Unless you just want an engine manual. Murray makes a 20 inch MX450 that has the Briggs and Stratton 450 engine on it but there are numerous makes and models (self propelled) that use this engine. MX450 parts manual is here: If you can come up with a good model number I will search avidly for a manual. Thanks for choosing FixYa, Kelly Jun 09, 2011.