Frequently Asked Questions about the Kohler 300 Hour Oil Change Kit

The Kohler 25 850 02-S is a 300-hour oil change kit made for Kohler small engines. It comes with Kohler 10W-50 full synthetic engine oil and a Kohler extended-life oil filter. This kit is for owners who want to follow Kohler’s recommended longer service interval instead of changing oil every 100 hours.

What engines use the Kohler 300 hour oil change kit? 

This Kohler oil change kit works with many Kohler engines found on lawn tractors, zero-turn mowers, and other outdoor equipment. It fits a lot of Kohler residential and commercial engine series. If you are searching by engine model or need the right oil change kit, this part number is a common match.

What makes this a 300 hour oil change kit? 

The Kohler 300 hour oil change kit uses full synthetic 10W-50 oil and an extended-life Kohler oil filter. These let your engine run up to 300 hours between oil changes if you follow Kohler’s guidelines. This is longer than with standard oil and filters. 

What type of oil is included in this Kohler oil change kit?

The kit includes Kohler 10W-50 full synthetic oil made for air-cooled small engines, not cars or trucks. These engines run hotter, especially during mowing season, and this oil is made to last under those tough conditions. It’s the same oil Kohler recommends for longer oil change intervals.

What oil filter comes with the Kohler 25 850 02-S kit?

The kit also has a Kohler extended-life oil filter that stays on the engine for the whole service interval. It’s built to keep working well as the hours add up. This is what allows for a 300-hour oil change without losing engine protection.

Is this Kohler oil change kit better than changing oil every 100 hours?

For many owners, yes. The Kohler 300 hour oil change kit means you change oil and filters less often. This saves time on maintenance and uses fewer supplies over your engine’s life. It’s especially useful for equipment used often or for commercial work.

Is this the correct oil change kit for my Kohler engine?

This oil change kit fits many Kohler engines made for longer service intervals. If you’re searching by part number, like Kohler 25 850 02-S, or looking for a Kohler 300 hour oil change kit, this is usually the right one. Always check your engine manual to make sure it’s compatible before you order. 

Here are specific Kohler engine families and models that are commonly compatible with the Kohler 25 850 02‑S 300 Hour Oil Change Kit (300-hour extended oil change kit). This helps answer “Is this the correct oil change kit for my Kohler engine?” 

• Kohler 5400 Series engines – small single- and twin-cylinder vertical shaft engines used on lawn tractors and walk-behind mowers.
• Kohler 6600 Series engines – larger residential to light commercial engines on zero-turn mowers and garden tractors.
• Kohler 7000 Series engines – common mid- to high-output engines found on residential and commercial equipment.
• Kohler 7500 Series EFI engines – EFI (electronic fuel-injected) versions of the 7000 Series that also support extended oil changes.
• Kohler KT610-620 engines – horizontal crank, twin-cylinder engines used on larger lawn tractors and utility equipment.
• Kohler KT715-745 engines – larger twin-cylinder engines on zero-turn mowers and commercial equipment.
• Kohler SV470-620 – small-to-mid power vertical shaft engines.
• Kohler SV710-740 – higher-displacement vertical engines in residential and commercial gear.
• Kohler Command and Command PRO series (e.g., CH11-CH18-CH25, CV11-CV25) – many command series engines use similar extended-oil kits when equipped for 300-hour intervals.
• Kohler Courage and Confidant series – other common power plant families found on residential and commercial mowers that are listed as compatible.

This list isn’t exhaustive, but it covers many of the engine families and models you’ll see in parts manuals and dealer fitment references for this extended-life oil change kit. Always confirm exact engine compatibility in your owner’s manual or parts catalog when in doubt, but these examples are a solid reference for most. 

Why buy this Kohler oil change kit now?

Right now, we’re offering this Kohler oil change kit at a discount as we clear out extra stock, and shipping is free. If you know you’ll need an oil change soon, it’s a good time to buy and have it ready when you need it.

The easiest way to keep your Kohler engine running well is to change the oil. Using the oil and filter Kohler recommends helps reduce wear, prevent problems, and keep your equipment reliable year after year. You can view current pricing and order the Kohler 25 850 02-S 300 Hour Oil Change Kit here.