Centuryestar Carburetor for Craftsman LT/LTR/YT/YTS Riding Mowers — 791858 Fit, 14.5–21 HP with Tune-Up Kit

Centuryestar 791858 carburetor with full tune-up kit is a direct-fit replacement for many Craftsman LT, LTR, YT and YTS riding mowers, restoring smooth idle and reliable fuel delivery.

If your Craftsman lawn tractor is showing rough idling, black exhaust smoke, or poor throttle response, this Centuryestar carburetor and comprehensive tune-up kit offers a practical replacement that matches original part numbers and supports a range of engine sizes. Built to replace OE parts 791858, 792358, 793224 and 794572, the assembly is intended for 14.5–21 HP engines and ships with filters, plugs, gaskets and small accessories to simplify installation and first run setup.

How will this carburetor improve everyday mowing performance?

Replacing a worn or clogged carburetor with this Centuryestar unit restores consistent fuel metering, which helps stabilize idle RPM and reduces smoky exhaust. You’ll notice smoother acceleration and fewer stalls under light load once the correct fuel-air mixture is reestablished.

• Restores steady idle and cleaner exhaust by improving fuel atomization.
• Reduces rough-throttle surges and hesitation during blade engagement.
• Includes new fuel lines and filters to prevent contamination after installation.

Which Craftsman models and engine sizes is this compatible with?

This carburetor is engineered to fit an extensive list of Craftsman tractors, including LT1000, LT2000, LT3000, LTR2000, YT3000, YTS3000 and several D- and GS-series models. It supports small single-cylinder and twin-engine platforms within the 14.5–21 HP range, covering common residential mower power ratings.

• Direct-fit for LT/LTR/YT/YTS series and many DYT/GS/DLS models.
• Supports engines from roughly 15.5HP up to 20HP for broad compatibility.
• Replaces OE numbers 791858, 792358, 793224, 794572 for easy parts matching.

What’s included in the tune-up kit, and what does each part do?

The kit bundles the carburetor with air and oil filters, spark plugs, fuel line and filters, a gasket, a fuel shut-off valve, and a basic carburetor cleaning set. These components let you perform a near-complete service so the new carburetor operates on clean fuel and ignition parts from the first start.

• 1x carburetor — primary replacement component for fuel delivery.
• Air filters (793569 & 793685), oil filter (696854), two spark plugs for ignition reliability.
• Fuel hose, fuel filters, shut-off valve, gasket, and cleaning kit to prevent leaks and contamination.

How difficult is installation and what should I prepare?

Installation is straightforward for users comfortable with small-engine maintenance; it typically requires basic hand tools, a clean workspace, and the time to drain residual fuel. The included gasket, hose and filters reduce the need for additional parts, but having a service manual or photos of the original setup helps ensure correct linkages and vacuum connections.

• Basic tools (wrenches, screwdrivers) and a clean bench recommended for assembly.
• Drain or clamp the fuel line, note linkage positions, then swap the carburetor and hoses.
• Use supplied gasket and filters; adjust idle/mixture per mower manual after install.

Who is this for: This Centuryestar 791858 carburetor and tune-up kit is aimed at DIY lawn tractor owners, small-engine technicians, and maintenance shops that service Craftsman LT, LTR, YT and related models. It’s suited for anyone who wants an OE-part-number-matching replacement plus the essential filters and fittings needed to get the mower back to reliable operation without sourcing parts separately.