Replace OEM:

Murray: 94199MA, 494199 and 494199MA.

Fit Models:

Murray:  425000x8A /425000x8B /425001x31A /425001x8A /425001x8B /425001x8C /425001x8D /425001x8E /425001x99A 
/425002x99A /425002x99B /425003x31A /425003x71A /425003x8A /425004x99A /425004x99B /425005x8A /425005x8B 
/425007x92A /425007x92B /425007x92C /425008x31A /425008x8A /425009x31A /425009x8A  

Notes:

12 point splined ID

OD 5 3/8"  Height 7/8"