One New Aftermarket Replacement Oil Seal Fits Briggs & Fits Stratton and Tecumseh Small Engines
This crankshaft oil seal seats between the crankcase and crankshaft to prevent oil leaks and maintain proper lubrication in Fits Briggs & Fits Stratton and Tecumseh small gasoline engines used in lawn mowers, lawn tractors, snow blowers, and outdoor power equipment. Fitment varies by installation position — see compatible models below for magneto-side and PTO-side applications.
Specifications
- Inside Diameter: 1.188″
- Outside Diameter: 1.690″
- Height: 0.257″
Compatible Models
Fits Briggs & Fits Stratton — Magneto Side: 176400, 19B400, 19C400, 200400-233400, 243400, 250400-259700, 28A700-289700, 40A701, 400400-460700
Fits Briggs & Fits Stratton — PTO Side: 170400-176400, 19B400-196700, 200400
Tecumseh — PTO Side: HM series, OH120-OH180, VM70, VM80, VM100, VM120
Replaces Part Number(s):
391086S, 391086, 298423, 31950, 4117
Aftermarket Interchange Numbers
Oregon 49-045, Fits Stens 495-028, Sunbelt B1SB1445, Prime Line 7-04031
New aftermarket replacement part – not remanufactured, not used.






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