Oil Changing Drain Port Hose 3/8" NPT (National Pipe Thread) Replaces STAN1438 1723165SM 116-4924 For Kohler Series Engines Replace Oil Drain Aid Tool Red -High-Temperature 300°F

What It Is

This is a 3/8” NPT oil drain port hose designed to simplify oil changes on Kohler Series engines and compatible equipment. It replaces OEM parts STAN1438, 1723165SM, and 116-4924, and is rated for high-temperature use up to 300°F.

Fitment & Compatibility

Critical checks before purchase:

• Thread size: Must be 3/8” NPT (National Pipe Thread) – measure your engine’s drain port thread diameter and pitch. This is not for metric or 1/4” NPT ports.
• Engine brand: Works with Kohler Series engines (e.g., Courage, Command, Pro) that use a 3/8” NPT drain port. Not universal for all Kohler models – verify your engine’s service manual.
• OEM cross-reference: Fits as a replacement for STAN1438, 1723165SM, and 116-4924. If your engine uses one of these, this hose is compatible.
• Equipment type: Commonly used on riding mowers, zero-turns, and tractors with Kohler engines. Not for push mowers or small engines with 1/4” drain plugs.
• Physical fit: Hose length is not specified – ensure it’s long enough to reach your oil catch container without kinking.

Key Things to Know

• Installation difficulty: Easy – unscrew the original drain plug, hand-tighten the hose into the port. Use Teflon tape on the threads for a leak-free seal (not included).
• Quality note: The red hose is high-temperature rated to 300°F, but the brass or aluminum fitting may be less durable than OEM steel. Inspect for burrs before installing.
• Common gotcha: If your engine uses a magnetic drain plug, this hose doesn’t include one. Consider adding an inline magnet to catch metal debris.
• Oil change tip: Route the hose to a safe exit point before removing the cap. The cap may be loose – secure it with a zip tie to prevent accidental spillage during operation.

Should You Buy It

If you have a Kohler engine with a 3/8” NPT drain port and want a cleaner, less messy oil change, this is a solid budget option. It’s not premium build quality, but it works for occasional use. Skip it if your engine uses a different thread size or if you need a magnetic plug.