Pro Chaser Carburetor Kit for Husqvarna YTH20K46 YTH21K46 YTA1842 — Kohler 20HP Replacement with Gaskets & Filter

Pro Chaser replacement carburetor kit restores reliable fuel delivery for Kohler 20HP-equipped Husqvarna lawn tractors like YTH20K46, YTH21K46 and YTA1842.

If your Husqvarna lawn tractor is running rough, stalling, or refusing to idle smoothly, a worn or clogged carburetor is often the cause. This Pro Chaser YTH20K46 YTH21K46 carburetor kit is designed to replace original Kohler part numbers (including 20-853-33-S and related items) and arrives complete with gaskets, fuel hose, clamps, filter, shutoff valve, wiring and a spark plug so you can finish installation in a single maintenance session.

Will this carburetor fit my Husqvarna model?

Yes — this unit is engineered to be compatible with multiple Kohler 20HP setups used in Husqvarna tractors. It lists direct cross-reference part numbers so you can confirm fit before purchase.

• Fits Husqvarna YTH20K46, YTH21K46, YTA1842 and YTH20F42T models with 46" deck and Kohler 20 engine
• Replaces Kohler part numbers: 20-853-33-S, 20-853-01-S, 20-853-02-S, 20-853-14-S, 20-853-16-S, 20-853-42-S, 20-853-43-S
• Designed for Kohler Courage 20 series 20HP engines used on these tractors

What components are included in the replacement kit?

The package contains the carburetor plus all routine consumables needed for a clean swap, so you won’t need additional parts for a standard replacement. Components are selected to address common failure points like degraded hoses and clogged filters.

• 1 carburetor body calibrated to Kohler 20HP applications
• 2 intake/exhaust gaskets to ensure a proper seal
• Fuel hose (I.D. 1/4" O.D. 3/8") plus 4 hose clamps for secure connections
• 1 shut-off valve, 1 fuel filter, 1 connection wire, 1 cable tie and 1 spark plug

How difficult is installation and what should I prepare?

Installation is moderate for anyone familiar with small engine maintenance; basic hand tools and a clean workspace are typically sufficient. The included gaskets and hoses simplify the process, but follow manufacturer torque specs and safety procedures when working around fuel and ignition components.

• Recommended tools: screwdriver set, socket set, pliers, torque wrench and fuel-safe container
• Work on a cool engine in a well-ventilated area, disconnect the battery or ignition first
• Inspect mounting studs, throttle linkages and choke components during swap for wear

Will this kit improve performance and reliability?

Replacing an aged carburetor and its consumables typically restores consistent idling, smoother throttle response, and more dependable starting. While results depend on overall engine condition, fresh fuel selection and a clean carburetor often resolve common driveability complaints.

• Clears clogging issues caused by varnished fuel passages
• Eliminates air or fuel leaks with new gaskets and clamps
• Prevents fuel flow problems with included shut-off valve and filter

Who is this for: This Pro Chaser carburetor kit is intended for owners and technicians of Husqvarna riding mowers that use Kohler 20HP engines who want a complete, cost-effective replacement. It’s a practical choice for DIY repairers and service shops replacing aged carburetors, addressing leaks, or restoring proper fueling without hunting down separate parts. If you need to swap a carburetor and prefer a single kit with essential consumables included, this product lets you complete the job in one visit.