The Partner Air Filter for Briggs & Stratton 3.5 - 6 HP Engines is a replacement air filter that replaces parts 4101, 399959, 491588, 491588S, 5043B, 5043D and 5043H. Refer to your owner's manual for proper part selection and installation.

　　- Assembled dimension: 5.5 in. W x 1.125 in. D x 8.75 in. H

　　- Fits Briggs & Stratton 3.5 - 6 HP engines

　　- Replaces parts 4101, 399959, 491588, 491588S, 5043B, 5043D and 5043H

　　- OEM-quality replacement air filter

　　- Replaces parts 4101, 399959, 491588, 5043B, 5043D, 5043H

　　- Note: Product may vary by store.