Briggs & Stratton Air Filter Plus Pre-Filter Air Filter 397795, 397795S, Pre-Filter 399039. Same As John Deere LG397795S, PT11025 Quality Aftrmarket Air Filter and Pre-Filter. Air Filter Replace Briggs & Stratton 397795, 397795S, 395027 Pre-Filter Replace Briggs & Stratton 399039 Width: 4-1/2", Length: 6-5/16", Height: 3/4"