Shop replacement repair parts for Simplicity Lawn Mower model 990541

Briggs & Stratton 4-Cycle Engine Oil. (48oz Bottle)
Briggs & Stratton Lawn Mower Oil is formulated for 4-cycle air-cooled engines. For optimum performance, change the oil in your small engine after the first five hours of use and then annually, or every 50 hours of use (whichever comes first).

Ball bearing, 1.78 in OD, .75 in ID

Retainer ring 1/2

Hn 5/16c gr5 yz

Pin 0.375 x 2.00



Lockwasher split 1/4


Washer flat


Lockwasher split 3/8

Collar

Nut