Description
Overview:
This flywheel nut is a Genuine Honda part designed to secure the flywheel to the crankshaft on Honda GX-series petrol engines. Built from robust steel with an integrated flange, it provides a solid, reliable clamp on the flywheel hub to keep timing stable and withstand engine vibration. It is suitable for popular engines used in construction and garden machinery, including Honda GX240 and GX270, and also fits GX340 and GX390. The 16 mm flange nut delivers a dependable fit where accurate seating and correct clamping force matter, helping to protect the crankshaft and flywheel from movement and wear. Ideal for routine maintenance or repairs, it replaces worn or damaged nuts to restore safe, reliable engine operation. Genuine Part for assured quality and compatibility.
Key Features:
- Genuine Honda OEM flywheel nut for consistent fit and performance
- 16 mm flange design spreads load evenly to protect the flywheel hub
- Steel construction for strength, durability, and long service life
- Precision machined threads for smooth installation and consistent torque
- Engineered for high vibration environments typical of GX engines
- Helps maintain correct flywheel seating for smooth starting and running
- Direct replacement on listed engines; no modifications required
- Suitable for professional workshop and DIY maintenance
Typical Applications:
Used to fasten the flywheel on Honda GX engines found in site generators, pressure washers, plate compactors, water pumps, cement mixers, chippers, and garden machinery. Suitable for replacing a missing, stripped, or corroded nut during engine rebuilds, flywheel removal/refit, or routine servicing.
Also known as:
Flywheel retaining nut, crankshaft flywheel nut, engine flywheel fastener, Honda GX flange nut, engine retaining nut.
Fits Models:
EC5000, G400K1, GX240, GX240K1, GX240U1, GX240UT1, GX240UT2, GX270, GX270T2, GX270U, GX270UT2, GX340, GX340K1, GX340T1, GX340T2, GX340U1, GX340UT1, GX360K1, GX390, GX390K1, GX390T1, GX390T2, GX390U1, GX390UT1, GX390UT2, GXV340RT2, GXV390, GXV390RT1
Alternate Part Numbers:
90201-ZE3-790, 90201ZE3790
Product Specifications
| L&S Part No. | 90201 ZE3 790 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 90201ZE3790 |
| Unit of Sale | 1 |
| Size | 16mm |
| Applications | EC5000, G400K1, GX240, GX240K1, GX240U1, GX240UT1, GX240UT2, GX270, GX270T2, GX270U, GX270UT2, GX340, GX340K1, GX340T1, GX340T2, GX340U1, GX340UT1, GX360K1, GX390, GX390K1, GX390T1, GX390T2, GX390U1, GX390UT1, GX390UT2, GXV340RT2, GXV390, GXV390RT1 |
| Machine Type | Engines |
| Fits Brands | Honda |
| Fits Models | GX340K1 (GC05) | GX340U1 (GCAMK) | GX340UT1 (GCAVT) | GX340T1 (GCAWT) | GX340T2 (GCBFT) | GX340K1 (GDAE) | GX270 (GCAB) | GX270 (GDAD) | GX240K1 (GC04) | GX270U (GCALK) | GX270UT2 (GCBGT) | GX240U1 (GCAKK) | GX270T2 (GCBHT) | GX240UT1 (GCATT) | GX360K1 (GA01) | GX390K1 (GDAF) | GX390T1 (GCAET) | GX390UT1 (GCAKT) | GX390U1 (GCANK) | GX390UT2 (GCBCT) | GX240UT2 (GCBJT) | GX390T2 (GCBDT) | GX240K1 (GDAC) | GX390K1 (GCAA) | GXV340RT2 (GJACT) | GXV390 (GJAA) | GXV390RT1 (GJADT) | G400K1 | EC5000 |
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