LIZAPUS Carburetor kit Compatible with Murray M155-42 Lawn Mowers Replacement Carb

What It Is

This is an aftermarket carburetor kit designed to replace the stock fuel system on Murray M155-42 riding lawn mowers (42-inch deck). It meters fuel and air into the engine for combustion, addressing stalling, hard starting, or rough idling caused by a clogged or worn OEM carb.

Fitment & Compatibility

Before buying, verify your mower’s model number (e.g., M155-42) and engine brand—this kit fits specific Murray models with Briggs & Stratton or Tecumseh engines, but not all variants. Check your engine’s model and type numbers (stamped on the valve cover or shroud) against the kit’s listed OEM part numbers (usually 799866 or 498811). Measure the carburetor mounting bolt spacing and intake flange size (common is 1.5-inch center-to-center). This is a non-OEM replacement; it may require minor adjustments to gaskets or linkages.

Key Things to Know

• Quality variance: Aftermarket carb kits often work well but may have slightly thinner gaskets or less precise machining than OEM—check for vacuum leaks after installation.
• Installation difficulty: Moderate. You’ll need basic tools (socket set, screwdriver) and about 45-60 minutes. Clean the fuel line and tank thoroughly to prevent debris from clogging the new carb.
• Common gotcha: The included fuel line or gaskets may not match your engine’s exact ports—keep your old gaskets as a backup. Also, adjust the idle screw (often pre-set too rich) to avoid flooding.
• Warranty note: Aftermarket parts void OEM warranties if still under coverage, but for older mowers, this is rarely an issue.

Should You Buy It

If your Murray M155-42 won’t start, runs rough, or leaks fuel from the carb area, and you’re comfortable with basic engine work, this $28 kit is a cost-effective fix. It’s a solid choice for DIYers who want to avoid a $80+ OEM replacement, but skip it if you need a perfect factory fit or prefer bolt-on simplicity without tuning.