CV730S carburetor Carburetor Compatible with Kohler CV740S 25HP 27HP Command PRO Engine Carb with Air filter Tune-Up kit Replace KH-24 853 102-S

What It Is

This is an aftermarket carburetor with an air filter and tune-up kit designed for Kohler Command PRO engines, specifically the 25HP and 27HP CV730S and CV740S models. It’s a direct replacement for the OEM Kohler 24-853-102-S carburetor, intended for commercial-grade zero-turn mowers, riding mowers, and other heavy-duty lawn equipment.

Fitment & Compatibility

Before buying, check your engine’s model number (e.g., CV730S or CV740S) – it’s usually stamped on the valve cover or blower housing. This carburetor is a drop-in replacement for OEM part KH-24-853-102-S, but it’s not universal for all Kohler engines. Verify your engine’s displacement (725cc or 747cc) and fuel type (gasoline only – not for diesel or propane). Measure the carburetor mounting bolt spacing (typically 3.5 inches center-to-center) and the air filter housing dimensions (approx. 5.5 x 4.5 inches). This kit includes a new air filter and gaskets, but you may need to reuse your original throttle linkage and fuel line fittings. Not compatible with older Kohler Courage or single-cylinder engines.

Key Things to Know

• Quality vs. OEM: This aftermarket carburetor is a budget-friendly alternative to Kohler’s OEM unit (which can cost $100+). It may require minor adjustments to the idle mixture screw (usually 1.5 turns out) to run smoothly.
• Installation difficulty: Moderate – you’ll need basic tools (screwdrivers, socket set) and should disconnect the battery before starting. Expect 30–60 minutes if you’re familiar with carburetor swaps.
• Common gotchas: The supplied gaskets may be slightly thicker than OEM – check for vacuum leaks after installation. The fuel bowl drain screw can be fragile; don’t overtighten. Also, the included air filter may be a generic foam type, not a high-efficiency paper filter; consider upgrading if you mow in dusty conditions.
• Tune-up kit contents: Comes with carburetor, air filter, spark plugs (usually two, since these engines are twin-cylinder), and gaskets – but not fuel line or clamps. Check your old spark plug gap (typically 0.030 inches) before installing the new ones.

Should You Buy It

This carburetor kit is a solid buy if you need a cost-effective fix for a rough-idling, hard-starting, or fuel-leaking Kohler CV730S or CV740S engine. It’s ideal for DIYers who are comfortable with basic engine work and want to avoid a $100+ OEM part. However, if you need guaranteed OEM fitment or have a high-hour engine with other wear issues (e.g., worn valve guides), consider sticking with the genuine Kohler carburetor. For most commercial mower owners, this aftermarket option delivers reliable performance at a fraction of the price.