12 050 01-S Oil Filter Compatible with Koh-ler Engine Lawn Mower, Troy Bi-lt 12 050 01, 1205001-S 12 050 01-S1 KH-12-050-08 and KH-12-050-01-S Oil Filter

What It Is

This is an aftermarket oil filter (12 050 01-S) designed to replace OEM Kohler filters on lawn mower engines, specifically for Troy-Bilt mowers and other equipment using Kohler single-cylinder or V-twin engines. It traps dirt and debris to keep engine oil clean.

Fitment & Compatibility

• OEM cross-references: Replaces Kohler 12 050 01, 12 050 01-S1, KH-12-050-08, KH-12-050-01-S, and Troy-Bilt 1205001.
• Check engine model: Works with Kohler Courage, Command, and Confidant series (e.g., CH, CV, SV models). Verify your engine’s model number on the engine shroud or valve cover.
• Measurements: Thread size is 13/16"-16 (standard small engine filter). Filter height is about 3.5 inches; ensure clearance in your engine compartment.
• Deck size irrelevant: Fitment depends on engine, not mower deck size. Works on zero-turn, riding, or walk-behind mowers with compatible Kohler engines.

Key Things to Know

• Aftermarket quality: This is a non-OEM filter. 4.9/5 rating suggests good build, but always check for leaks after first use.
• Easy install: Hand-tighten only (¼ to ½ turn after gasket contacts). No tools needed. Overtightening can damage gasket.
• Common gotcha: Some Kohler engines use a different spin-on filter (e.g., shorter 12 050 08). Measure your old filter before buying.
• Change interval: Replace every 50 hours or annually, whichever comes first. Use with SAE 30 or 10W-30 oil.

Should You Buy It

Buy this if you need a budget-friendly replacement for a Kohler 12 050 01-series filter and don’t mind aftermarket. It’s ideal for DIY mower maintenance on older Troy-Bilt or Kohler-powered equipment. Avoid if your engine requires an OEM filter for warranty or if your filter is a different size/thread pattern.