16-853-19-S Carburetor for Kohler KT735 KT730 KT725 KT740 KT745 Lawn Mover Engine with Fuel Pump, Replace for kh-16-853-19-s kh-32-853-67-s

What It Is

This is a complete drop-in carburetor assembly for Kohler Courage/Command Pro V-Twin engines in the 7000-series (KT725–KT745). It includes an integrated fuel pump, replacing OEM part numbers 16-853-19-S and 32-853-67-S. Designed for residential zero-turn mowers, lawn tractors, and commercial walk-behinds (e.g., John Deere, Cub Cadet, Toro) that use these engines.

Fitment & Compatibility

• Engine models: KT725, KT730, KT735, KT740, KT745 (all require the same carburetor).
• OEM cross-reference: Check your current carburetor’s stamped number. This replaces 16-853-19-S and 32-853-67-S only. Do not assume it fits other Kohler series (e.g., CH, CV, or Command single-cylinder).
• Measure before buying: The carburetor mounting flange is 2.25″ wide; the fuel pump inlet/outlet ports are 1/4″ barb. Verify your fuel line ID and that the choke linkage matches your engine’s orientation (some models have a throttle/choke cable, others use a manual lever).
• Brand-specific: Fits most 2015–2023 Kohler-powered mowers with a 7000-series V-twin. Confirm your mower’s engine model number (stamped on the valve cover or flywheel shroud) before ordering.

Key Things to Know

• Quality vs. OEM: This is an aftermarket part at a fraction of OEM cost (~$90–$120). It includes a gasket and fuel pump, but not a fuel filter or spark plug. Expect minor casting imperfections; clean out any debris before installation.
• Installation difficulty: Moderate. You’ll need to remove the air filter housing and fuel lines. The fuel pump diaphragm is pre-installed, but check that the fuel line clamps are tight to prevent air leaks.
• Common gotchas: The choke linkage may need slight bending to match your cable travel. Some users report the idle mixture screw is preset too lean; you may need to turn it out 1–1.5 turns after install. Also, the fuel pump inlet is oriented downward—ensure your fuel line doesn’t kink.
• Warranty: No manufacturer warranty beyond 30 days, typical for budget aftermarket parts. If your engine is under warranty, use OEM to avoid voiding it.

Should You Buy It

Buy this if you have a Kohler 7000-series V-twin (KT725–KT745) and want a low-cost replacement that works out of the box with minor adjustment. Skip it if you need exact OEM fitment, have a non-V-twin Kohler, or prefer a brand with a longer warranty. For the price, it’s a solid fix for a common carburetor failure on these engines.