Products Description
Gasoline Generator Muffler Assy For GX390
Exhaust Silencer for Honda GX340/GX390 & Clone Engines
OEM replacement muffler assembly (18310-ZE2-W61) for GX340/GX390 11-13HP engines and clone models (182F/188F/420cc). Complete set includes muffler, exhaust manifold pipe, and gaskets. Reduces engine exhaust noise significantly. Heat-resistant painted finish for durability under continuous operation. Direct bolt-on replacement using original mounting points.
Technical Profiles & Materials
Noise Reduction – Significantly lowers exhaust noise output, improving operator comfort and meeting worksite noise requirements .
Complete Kit – Includes muffler, manifold pipe/head shield, and 2 gaskets. No additional parts needed for installation .
Heat-Resistant Build – Coated with high-temperature paint; reliable materials withstand continuous generator operation heat .
Direct OEM Fit – Replaces Honda 18310-ZE2-W61 / 18320-ZE2-W61. Same dimensions as original for quick installation .
Wide Compatibility – Fits Honda GX340/GX390 and clone 182F/188F, 420cc Predator, Champion 389-439cc engines .
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | OEM Part No. | 18310-ZE2-W61 / 18320-ZE2-W61 |
| 2 | Compatibility | GX340, GX390 (11-13HP), 182F, 188F |
| 3 | Material | Iron with heat-resistant coating |
| 4 | Color | Black |
| 5 | Dimensions | Approx. 19×17×13 cm / 7.48×6.69×5.12 in |
| 6 | Weight | Approx. 2.38–2.6 kg |
| 7 | Package Includes | 1 Muffler, 1 Manifold/Head Shield, 2 Gaskets |
| 8 | Manifold Part No. | 18330-ZE2-W00 / 18330-ZH9-N00 |
Products Application
Generators
Reduces operational noise in portable and standby generators. Heat-resistant construction withstands extended runtime. Complete kit simplifies top-end exhaust replacement during routine maintenance.
Pressure Washers
Common replacement on GX390-powered pressure washers where vibration accelerates muffler fatigue. Includes head shield manifold for safe operation in high-heat environments .
Water Pumps & Compactors
Direct fit for pumps, tillers, compactors with GX340/GX390 engines. Heat-resistant coating prevents corrosion in outdoor/dusty conditions.
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
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FOR 10000+ OUALITY PARTS
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FAQ
Q: How to confirm this muffler fits my engine?
A:Check engine model code stamped on housing. Fits GX340, GX390, GX420, and clone 182F/188F/420cc series. Replaces Honda 18310-ZE2-W61. Not for GX240/GX270 (different mounting flange).
Q: What's included in the assembly?
A: Complete kit includes muffler, exhaust manifold pipe/head shield, and 2 mounting gaskets. Direct bolt-on using original studs.
Q: Why does my muffler keep loosening?
A: Vibration can loosen mounting nuts on GX engines. Use all-metal locking nuts or threadlocker on studs. If stud threads are stripped, install a Heli-Coil insert in the cylinder head.
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