20-853-33-S Carburetor for Kohler Courage 19HP 20HP SV600 SV600S SV610 SV470 SV530 SV541 SV590 SV591 SV601 Engine for Cub Cadet LT1045 LT1042 LTX1042 LTX1045 Lawn Mower Replace 2085316-S 2085314-S

What It Is

This is an aftermarket carburetor designed to replace the OEM part on Kohler Courage single-cylinder engines (19-20 HP) found in many Cub Cadet lawn tractors, including the LT1042 and LT1045 models. It’s the fuel-air mixing component that delivers the correct mixture to the engine for starting and running.

Fitment & Compatibility

Before buying, verify your engine’s model number—this fits Kohler Courage SV470, SV530, SV541, SV590, SV591, SV601, SV600, and SV600S. It replaces OEM part numbers 2085316-S and 2085314-S. The carburetor is a direct bolt-on for the listed Cub Cadet models, but double-check your mower’s deck size (42” or 46”) doesn’t affect clearance—it usually doesn’t, but measure the carburetor’s mounting flange width (about 2.5”) and compare to your old one. This is an aftermarket part, not OEM Kohler, so the gaskets and hardware included may be slightly thinner; use your original gaskets if the new ones leak.

Key Things to Know

• Quality varies: Some units arrive with debris in the bowl. Flush it with carb cleaner before installing to avoid clogging the jets.
• Installation is straightforward if you’re comfortable with a screwdriver and pliers—expect 30-45 minutes. The hardest part is often removing the old carb without stripping the plastic intake elbow.
• Common gotcha: The fuel line may be brittle on older mowers. Have a short length of 1/4” fuel line on hand in case it cracks during removal.
• Adjustments needed: The idle mixture screw is pre-set, but you may need to turn it 1/2 to 1 turn out for smooth idle. Test after running for 5 minutes.

Should You Buy It

This is a solid budget fix for a non-starting or rough-idling Kohler Courage engine—especially if your OEM carb is $60+. It’s right for DIYers who can handle basic engine work and don’t mind a little fine-tuning. If you want zero hassle or a warranty, stick with OEM Kohler.