Products Description
GX390 188F Generator Carburetor Gasket
Intake Seal for Honda & Clone GX390 Engines
OEM replacement carburetor mounting gasket (16221-Z8T-000 / 16221-ZF6-800) for GX340/GX390 and 188F clone engines. Seals between carburetor and intake insulator to prevent air leaks. Fuel- and oil-resistant fiber composite material withstands ethanol-blended fuel. Direct-fit replacement during carburetor service or rebuild.


Technical Profiles & Materials
Air Leak Prevention – Seals carburetor-to-insulator joint to prevent unmetered air entry that causes erratic idle, surging, and power loss .
Fuel-Resistant Material – Fiber composite with rubber binders resists oil, fuel, and ethanol blends up to 180°C .
OEM Specification – Matches Honda profile and thickness (16221-Z8T-000 / 16221-ZF6-800) .
Heat & Vibration Resistant – Maintains seal integrity under continuous generator operation .
Direct Fit – No modifications required. Installs with standard studs using basic hand tools .
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | OEM Part No. | 16221-Z8T-000 / 16221-ZF6-800 |
| 2 | Material | Cellulose fiber + Nitrile Butadiene binder |
| 3 | Sealing Type | Carburetor-to-insulator / intake manifold |
| 4 | Heat Resistance | 180°C (350°F) max |
| 5 | Density | 0.64 g/cc (min) |
| 6 | Oil Resistance | ≤10% thickness change |
| 7 | Fuel Resistance | ≤15% thickness change (Fuel B) |
| 8 | Unit | 1 gasket per order |
Products Application
Generators
Replace during carburetor service to restore stable AC frequency output. Prevents lean surging common in portable generators.

Water Pumps
Maintains proper fuel-air ratio under continuous load. Prevents power loss when pump pressure changes.

Construction Equipment
Essential for compactors, tillers, and mixers. Vibration-resistant seal ensures reliable operation in demanding 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.
Trusted Partnership Power
YOUR PROFESSIONAL ONE-STOP SOURCE
FOR 10000+ OUALITY PARTS
Verified Factory Excellence
BACKED BY 200+ TRUSTED FACTORY PARTNERS

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FAQ
Q: How to confirm this gasket fits my engine?
A:Check engine code on housing. Fits GX340, GX390, GXV340, and clone 182F/188F. Replaces Honda 16221-Z8T-000 and 16221-ZF6-800.
Q: When should I replace this gasket?
A: Recommended every time carburetor is removed or serviced. Inspect for cracks, compression, or hardening
Q: What's the MOQ and lead time?
A: MOQ 100 PCS. Delivery 7-14 days. Neutral export carton packaging.
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