Description
Overview:
This Carburettor Gasket is a Genuine Honda part for GX390-series engines, including GX390UT2 and GX390T2. It sits between the carburettor and the adjacent component (typically the insulator or intake), creating a secure seal to prevent unmetered air and fuel leaks. Made from a fuel- and heat-resistant fibre composite, it maintains a stable seal under vibration and temperature changes common in hard-working equipment. Using the correct gasket helps engines start reliably, idle smoothly, and deliver consistent power. As an OEM component (Honda reference 16221-Z5T-000), it is manufactured to Honda's tolerances for fit and performance, reducing the risk of air leaks that can cause poor running, surging, or increased fuel consumption in generators, pressure washers, mixers, pumps, and other GX390-powered machinery.
Key Features:
- Genuine Honda part for assured compatibility and performance
- OEM quality (16221-Z5T-000) for a precise fit on GX390-series engines
- Fuel- and heat-resistant fibre composite for a durable, long-lasting seal
- Helps prevent air and fuel leaks for stable idle and steady running
- Supports correct air-fuel mixture, aiding starting and throttle response
- Designed for the two-stud carb mounting pattern used on GX390
- Reliable under vibration and thermal cycling in daily site or garden use
- Straightforward replacement during routine servicing or carburettor refits
- Reduces risk of hunting, stalling, or over-lean conditions
- Suitable for professional, DIY, and fleet maintenance schedules
Typical Applications:
Used during carburettor removal, refitting, or overhaul on GX390-powered equipment such as site generators, pressure washers, plate compactors, water pumps, concrete mixers, and large garden machinery. Also fitted as preventative maintenance when addressing air leaks, poor idle, surging, or fuel efficiency issues.
Also known as:
Carb gasket, carburettor to insulator gasket, intake gasket, manifold side carb gasket, carburetor gasket (US), engine carb seal, carb mounting gasket.
Fits Models:
GX390UT2, GX390T2
Alternate Part Numbers:
16221-Z5T-000, 16221Z5T000, 5200000437
Product Specifications
| L&S Part No. | 16221 Z5T 000 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 16221Z5T000 |
| Unit of Sale | 1 |
| Applications | GX390T2, GX390UT2 |
| Machine Type | Engines |
| Fits Brands | Honda |
| Fits Models | GX390UT2 (GCBCT) | GX390T2 (GCBDT) |
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