792105 Air Filter with 492932 Oil Filter Compatible with BS 407777 40G777 407777 445667 445877 Engine, for JD LA165 D160 MIU11515 GY21057 Lawn Mower air filter tune up kit

What It Is

This is a tune-up kit containing an air filter (part 792105) and oil filter (part 492932) designed for Briggs & Stratton single-cylinder engines used in many John Deere lawn tractors. It’s meant for routine maintenance to keep the engine breathing clean air and circulating clean oil.

Fitment & Compatibility

Before buying, confirm your engine model number. This kit fits B&S engines 407777, 40G777, 445667, and 445877—typically found on John Deere LA105, LA115, LA125, LA135, D100, D110, D125, D130, D140, D155, D160, and D170 models. Also fits MIU11515 and GY21057.

Check these three things:

1. Engine model number – Look on the engine shroud (often stamped near the spark plug). It should start with 40, 44, or 45. The kit does not fit larger V-twin engines.
2. Measure the oil filter – The 492932 filter is about 3.5” tall and 2.75” wide. If your current filter is noticeably taller or shorter, this won’t work.
3. Air filter shape – The 792105 is a rectangular foam/paper element. If your mower uses a round or cylindrical filter, this is the wrong kit.

This is an aftermarket kit, not OEM John Deere or Briggs & Stratton. It’s a direct replacement for the original parts but may have slightly different foam density or paper pleating.

Key Things to Know

• Quality is solid for the price – Users report it fits well and works as expected. Not as durable as OEM, but fine for a season of normal use.
• Installation is easy – No tools needed for the air filter (just snap off the cover). The oil filter requires a wrench for removal and hand-tightening for installation.
• Common gotcha – The oil filter can be hard to reach on some models (e.g., D140). Use a filter wrench or strap wrench. Pre-fill the filter with oil before installing to prevent dry starts.
• Not for all B&S engines – Even if your engine model looks close, double-check the exact number. The 40G777 and 407777 are common, but 40H777 or 44P777 are not compatible.

Should You Buy It

If you own a John Deere lawn tractor with a B&S single-cylinder engine from the list above and want an affordable, easy-to-install tune-up kit, this is a good buy. It’s not for heavy commercial use or for engines that require OEM parts for warranty, but for most homeowners, it’s a reliable, budget-friendly choice.