MDAIRC SV600 Carburetor for Kohler Courage SV-Series Engines — Direct-Fit 15–22 HP Kit with Gaskets & Fuel Line

The MDAIRC SV600 carburetor is a complete replacement unit made to restore fuel delivery on Kohler Courage engines used in many 15–22 HP riding mowers.

If your mower is experiencing poor idling, fuel leaks, or performance drop-offs and it uses a Kohler Courage SV-series engine, this MDAIRC carburetor kit offers a direct-fit swap with the gaskets, lines, and small parts needed to get the engine running reliably again. The unit matches OEM mounting and inlet/outlet locations for models listed below and comes with helpful accessories so you can replace the whole assembly in one repair.

Which Kohler and mower models will this carburetor fit?

This carburetor is designed for a range of Kohler Courage SV-series engines and common lawn tractor applications. Confirm your engine model and part number before ordering to ensure fit.

• Compatible Kohler engines: SV470, SV471, SV480, SV530, SV540, SV541, SV590, SV591, SV600, SV601, SV610, SV620.
• Cross-reference numbers: 2085395S, 2085371S and related Kohler part series listed in product specs.
• Mower compatibility: many MTD, Toro and Troy-Bilt tractors that use Kohler Courage 15–22 HP engines (verify with your model).

What comes in the MDAIRC carburetor kit and why is that useful?

The kit is supplied as a ready-to-install package so you avoid sourcing tiny parts separately, speeding up the repair and reducing downtime.

• 1 carburetor body plus pre-attached components where applicable for direct replacement.
• Fuel line, gaskets, wire connector, and clamps to seal and connect the carburetor properly.
• Auxiliary parts: air filter, pre-cleaner, fuel pump, oil filter, fuel filter, spark plug, and fuel shut-off valve for a comprehensive tune-up.

How do I troubleshoot a surging engine after installing this carburetor?

Surging can be caused by small adjustments needed at the idle mixture or the throttle connection. Make only slight turns when adjusting and test-run the engine between tweaks.

• Locate the adjusting nut on the top side of the carburetor and turn it slightly clockwise or counterclockwise to stabilize idle.
• Check for air or vacuum leaks at gaskets and hose connections; replace damaged hoses or clamps.
• Confirm correct fuel flow using the provided fuel filter and shut-off valve to avoid flooding or starvation.

Will this replacement improve mower performance and how durable is it?

A properly matched carburetor restores correct air–fuel mixture which helps idle stability, throttle response, and starting reliability. Long-term durability depends on installation, fuel quality, and routine maintenance.

• OEM-style fitment reduces need for modifications and helps maintain original engine clearance and linkages.
• Included filters and gaskets help protect downstream components and reduce contamination-related wear.
• Use clean, stabilized fuel and periodic air/fuel-filter changes to prolong service life.

Who this is for: This MDAIRC SV600 carburetor kit is intended for homeowners, landscapers, and small-fleet technicians who need a complete, cost-effective replacement for Kohler Courage SV-series engines on 15–22 HP riding mowers. It’s best for anyone comfortable with basic small-engine servicing or a DIY mechanic who wants the convenience of a full parts kit to perform a single repair that addresses fuel delivery, filters, and spark components at once.