Pro Chaser carburetor replacement for Husqvarna YTH20K46 YTH21K46 YTA1842 — Kohler Courage 20 fit, complete gasket & filter kit

Direct fit replacement carburetor for Husqvarna YTH20K46, YTH21K46 and YTA1842 lawn tractors powered by Kohler Courage 20 engines.

If your Husqvarna riding mower is running rough, stalling, or struggling to start, a worn or clogged carburetor is a common cause. This Pro Chaser carburetor is engineered to match the original Kohler part specifications and comes as a complete kit with gaskets, fuel lines, filter, clamps and accessories so you can restore reliable fuel delivery without hunting for additional parts.

How will this carburetor improve mower starting and idling?

Replacing an aged carburetor reinstates proper fuel-to-air mixing, which helps the engine start more easily and maintain a steady idle. The included components reduce the chance that nearby accessories or damaged hoses will undermine the repair.

• Direct compatibility with Kohler Courage 20 engines used on specified Husqvarna models
• New gaskets and fuel filter to prevent leaks and contamination
• Shut-off valve and hose clamps for secure fuel connections

Which mower models and Kohler part numbers does this replace?

This carburetor is designed to replace several Kohler OEM part numbers and fits multiple Husqvarna tractor models with 20HP Kohler engines. Confirm your engine and model before purchasing to ensure a hassle-free swap.

• Replaces Kohler part numbers such as 20-853-33-S, 20-853-01-S and related variants
• Compatible with Husqvarna YTH20K46, YTH21K46, YTA1842 and YTH20F42T
• Suitable for 46" deck tractors with Kohler Courage 20 engines

What comes in the kit and why are the extras important?

The package includes every small part you commonly need when swapping a carburetor, saving time and trips to the hardware store. Fresh seals, fuel hose, clamps and a new spark plug help ensure a durable, leak-free installation and proper engine ignition after the swap.

• 1 carburetor preassembled for direct replacement
• 2 gaskets, 1 fuel hose (1/4" I.D., 3/8" O.D.), 4 hose clamps and 1 shut-off valve
• 1 fuel filter, 1 connection wire, 1 cable tie and 1 spark plug included

How difficult is installation and what should I prepare?

Installation is straightforward for anyone comfortable with small engine maintenance and basic hand tools. Allow time to drain fuel, label linkages, and work in a well-ventilated area; follow torque and routing guidance from your service manual for best results.

• Expect a 45–90 minute install time for DIY mechanics with basic tools
• Drain or clamp fuel line and disconnect battery before starting
• Use the supplied clamps, gaskets and filter to avoid leaks and air entry

This Pro Chaser carburetor kit replaces worn OEM units and supplies the extra parts needed for a complete, reliable repair. It restores correct fuel delivery to help your Husqvarna tractor run smoother, start more consistently and maintain stable idle RPMs.

Who is this for? Owners of Husqvarna YTH20K46, YTH21K46, YTA1842 or YTH20F42T lawn tractors powered by Kohler Courage 20 engines who need a full replacement carburetor kit. It's ideal for DIY technicians, small engine repair shops, and anyone wanting a ready-to-install replacement that includes gaskets, hose, clamps, filter and a spark plug to reduce downtime and extra parts hunting.