LTR2000 Carburetor For 42 inch 46 Craftsman YTS3000 YT3000 DYT4000 GS3500 LTR 2000 YTS 3000 YT DYT 4000 GS 3500 Riding Mower Lawn Tractor Use Briggs Stratton 14.5-21HP Engine

What It Is

This is an aftermarket carburetor designed for Craftsman riding mowers (42-46 inch decks) such as the LTR2000, YTS3000, YT3000, DYT4000, and GS3500 models. It replaces the OEM carb on Briggs & Stratton engines between 14.5 and 21 HP.

Fitment & Compatibility

• Engine family: Briggs & Stratton single-cylinder OHV engines (14.5–21 HP) found in these Craftsman tractors.
• Deck sizes: 42" and 46" (model number suffix like “42” or “46” indicates deck width).
• OEM cross-reference: Replaces Briggs part numbers 498664, 591266, 591267, 591268, 691104, 691105, 691106, and 695559.
• Check before buying: Verify your engine model number (stamped on valve cover or blower housing) and your mower’s model number (under seat). This carb is NOT for Intek engines or vertical shaft engines with a different bolt pattern.
• Measurements: Intake bolt spacing is 2.5" center-to-center; fuel inlet is 1/4" barb.

Key Things to Know

• Aftermarket quality: Generally reliable for the price, but may require minor adjustment of idle mixture screw (1.5 turns out from seated is a good starting point).
• Installation difficulty: Moderate – you’ll need a socket set, screwdrivers, and possibly a new gasket (included). Expect 30–60 minutes.
• Common gotchas: The included fuel line may be too long; trim to fit. Old gasket residue must be cleaned off the intake manifold. If the engine surges after install, check for vacuum leaks at the gasket.
• No warranty support from Craftsman – it’s a generic replacement, not OEM.

Should You Buy It

If your Craftsman mower is surging, hard to start, or running rich/lean due to a clogged or worn carb, this is a cost-effective fix. It’s a solid choice for DIYers who don’t want to rebuild the original carb. Avoid if you need exact OEM fitment or have a Briggs Intek engine – those require a different carb.