796031 Air Filter Kit with Pre-Filter & Fuel Filter for Briggs Stratton, John Deere D100-D140 E100-E130, Husqvarna YTH YTA TS Mowers, Replaces for MIU14395 GY21435 591334 691035 Engine Tune-Up

What It Is

This is a three-piece tune-up kit that replaces the air filter, pre-filter, and fuel filter on small engines used in riding mowers. It’s designed for Briggs & Stratton single-cylinder engines found in select John Deere, Husqvarna, and other lawn tractors.

Fitment & Compatibility

Before buying, confirm your engine model (not just the mower brand). This kit fits Briggs & Stratton engines with a 10-12.5 HP rating and uses a paper air filter measuring roughly 4.25" x 3.25" x 1.5". It replaces OEM parts MIU14395, GY21435, 591334, and 691035. Common compatible mowers include John Deere D100-D140 and E100-E130 series, and Husqvarna YTH, YTA, and TS models. Check your existing filter dimensions and fuel line diameter (typically 1/4" or 5/16") to ensure the fuel filter fits snugly. Cross-reference your mower’s model number with the listed OEM replacements—don’t rely solely on brand name.

Key Things to Buy

• Quality is acceptable for the price, but the paper air filter is thinner than OEM versions—expect shorter life in dusty conditions.
• Installation is straightforward: remove the air filter cover, swap the foam pre-filter, and clamp the fuel filter inline (note fuel flow direction arrow).
• Common gotcha: the fuel filter may be slightly loose on some mowers with 5/16" fuel line—use a zip tie or small clamp if needed.
• The kit includes no spark plug; if you need a full tune-up, buy the plug separately.

Should You Buy It

This is a solid budget option for a basic tune-up on a typical residential riding mower. It’s fine if you maintain your mower regularly and don’t work in heavy dust or tall weeds. For commercial use or extended intervals, spend more on an OEM or thicker filter.