Description
Overview:
This gasket is a Genuine Honda part that fits between the cylinder head and the carburettor insulator on Honda GX340 and GX390 engines. It is made from heat‐resistant gasket material designed to cope with engine temperatures, fuel exposure, and vibration. By providing a tight, airtight seal on the intake port, it prevents unmetered air entry and fuel mist leaks that can cause hard starting, rough idle, and power loss. Ideal for engines used in construction and garden machinery, including generators and water pumps, it helps maintain steady performance and reliability. As an OEM component, it matches the original thickness and profile to ensure proper clamping when refitted with the standard insulator and fasteners.
Key Features:
- Genuine Honda OEM part for precise fit and reliable sealing on GX340/GX390
- Creates an airtight seal between the cylinder head and carburettor insulator
- Heat, fuel, and vibration resistant for long service life
- Helps restore smooth starting, stable idle, and consistent throttle response
- Supports fuel efficiency by preventing intake air and fuel leaks
- Correct OEM thickness for proper insulator spacing and bolt torque retention
- Clean, flat cutouts for accurate port alignment and unobstructed airflow
- Direct replacement part; fits without modification when used with the original insulator
Typical Applications:
Replacement during carburettor, insulator, or intake service on GX340/GX390 engines powering generators, pressure washers, plate compactors, concrete mixers, water pumps, lawn and garden equipment, and other industrial plant. Recommended whenever the insulator or carburettor is removed to maintain a dependable intake seal and prevent vacuum leaks.
Also known as:
Intake gasket, inlet gasket, manifold-to-head gasket, carburettor spacer gasket, insulator spacer gasket, thermal insulator gasket, intake port gasket, carb gasket for intake side.
Fits Models:
EC5000, GX340, GX340K1, GX390, GX390H1, GX390K1, GX390T1, GX390T2, GX390U1, GX390UT1
Alternate Part Numbers:
16223-ZE3-W00, 16223ZE3W00
Product Specifications
| L&S Part No. | 16223 ZE3 W00 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 16223ZE3W00 |
| Unit of Sale | 1 |
| Applications | EC5000, GX340, GX340K1, GX390, GX390H1, GX390K1, GX390T1, GX390T2, GX390U1, GX390UT1 |
| Machine Type | Engines |
| Fits Brands | Honda |
| Fits Models | GX340K1 (GC05) | GX340K1 (GDAE) | GX390K1 (GDAF) | GX390T1 (GCAET) | GX390H1 (GCAFH) | GX390UT1 (GCAKT) | GX390U1 (GCANK) | GX390T2 (GCBDT) | GX390K1 (GCAA) | EC5000 |
Reviews
Ask a Question (1)
Compatibility
Customers also bought
Related Products
-
![]()
Cylinder Head Gasket Fits Honda GX390 - 12251-ZF6-W00£16.36 £13.63
