Stens Oil Filter, Kohler 12 050 01-S, ea, 1, Black,

What It Is

The Stens Oil Filter (OEM cross: Kohler 12 050 01-S) is a replacement spin-on oil filter designed for Kohler Command, Courage, and other small engines commonly found on lawn tractors, zero-turn mowers, and commercial walk-behinds. It filters engine oil to reduce wear and extend engine life.

Fitment & Compatibility

• Check your engine model: Fits Kohler engines with a 3/4”-16 thread and a 2.5” gasket diameter. Common compatible engines include Kohler Command (CH series), Courage (SV series), and some older K-series models.
• Cross-reference OEM numbers: Kohler 12 050 01-S, 12 050 02-S, 12 050 03-S, and 25 050 01-S. Also fits some Briggs & Stratton and Kawasaki engines with the same thread/gasket specs.
• Measure your old filter: Confirm thread size (3/4”-16) and gasket diameter (2.5”) before buying. Deck size or mower brand does not matter—only engine fit.
• Aftermarket note: Stens is a reputable aftermarket brand, not OEM. It’s a direct replacement, but always verify specs if your engine is older or modified.

Key Things to Know

• Quality: Stens filters meet or exceed OEM specs. They use a high-efficiency media and a silicone anti-drain back valve.
• Installation: Hand-tighten only (1/2 to 3/4 turn after gasket contacts). Over-tightening can damage the gasket or housing.
• Common gotcha: Some Kohler engines (e.g., Courage SV540-735) use a different thread (M20x1.5) – double-check your engine’s spec plate before ordering.
• Change interval: Replace every 100 hours or annually, whichever comes first, and always with every oil change.

Should You Buy It

If you own a Kohler-powered mower or small engine that uses the 3/4”-16 thread filter, this Stens oil filter is a reliable, budget-friendly alternative to OEM. It’s well-rated, easy to install, and widely compatible. Skip it only if your engine requires a metric thread or a different gasket size.