Honda Muffler & Gasket Kit for GCV160/GCV190 Engines — 18310-Z0Y-010 + 18381-ZL8-305, OEM Fitment & Seal

Genuine Honda muffler and gasket kit (parts 18310-Z0Y-010 and 18381-ZL8-305) engineered to replace worn exhaust components on compatible GCV160 and GCV190 engines.

This OEM muffler and gasket set is a factory Honda replacement designed for select small engines and lawn mowers. It includes the exact muffler assembly and exhaust gasket called out by Honda part numbers 18310-Z0Y-010 and 18381-ZL8-305, so you get proper fitment, factory materials, and consistent exhaust routing. Before ordering, verify your engine model, type, and serial number—this kit fits specific GCV160 and GCV190 series engines and certain HRR216K9 and HRX217K4 mower models, but not every variant.

How will this kit restore my mower's exhaust performance?

Replacing a damaged muffler and worn gasket restores exhaust containment and reduces leakage, helping the engine run closer to its intended sound and backpressure. Using genuine Honda parts keeps dimensions and mounting points correct so installation is straightforward for those familiar with small engines.

• Includes OEM muffler 18310-Z0Y-010 for factory-correct exhaust path
• Includes exhaust gasket 18381-ZL8-305 to seal the manifold joint
• Restores original fitment and mounting locations
• Reduces exhaust leaks and rattling associated with damaged mufflers

Which engines and mower models are compatible with these part numbers?

The kit is manufactured to match Honda's GCV160 and GCV190 engine families and is commonly used on specific HRR216K9 and HRX217K4 mower configurations. Compatibility depends on the precise engine model, type code, and serial number, so check your equipment stamp or owner's manual before buying.

• Designed for select GCV160 and GCV190 series engines
• Fits certain HRR216K9 mower configurations
• Fits select HRX217K4 mower models in specified trims
• Not universal—verify engine serial and type numbers prior to purchase

What should I know about installation and hardware?

Installation is typically a straightforward bolt-on replacement if your mower uses the same mounting points as the original. You may need basic hand tools and a clean workspace; if bolts are corroded, replacement fasteners may be required. Follow safety steps: cool engine, disconnect spark plug, and torque bolts to Honda specifications.

• Remove old muffler and gasket after engine cool-down
• Clean mating surfaces to ensure a reliable seal
• Use correct torque settings on mounting bolts where possible
• Replace corroded hardware if necessary for secure fitment

How can I confirm this is the right Honda part for my equipment?

Match the listed Honda part numbers—18310-Z0Y-010 (muffler) and 18381-ZL8-305 (gasket)—to the parts reference in your owner's manual or the parts decal on your engine. If your engine or mower has a different part number, this kit may not fit even if the model name looks similar.

• Locate engine model, type, and serial on the engine tag
• Cross-check those numbers with the part numbers in your manual
• Contact a Honda dealer with your serial for confirmation if unsure

Who this is for: This genuine Honda muffler and gasket kit is aimed at homeowners, landscapers, and small-engine technicians who need an authentic OEM replacement for compatible GCV160/GCV190 engines or specific HRR/HRX mower models. Choose this set if you want factory-fit parts to maintain original exhaust alignment and reduce leakage; avoid it if your engine or mower uses different Honda exhaust part numbers.