Description
Overview:
This Flywheel Nut is a Genuine Honda part for securing the flywheel to the crankshaft on small petrol engines. Made from high‐strength steel and manufactured to Honda's specifications, it delivers a precise, reliable clamp that resists vibration in demanding use. It is suitable for a wide range of Honda power equipment using GX and GC/GCV series engines, such as compact generators and pedestrian lawn mowers. Identified as OEM/MPN 90201-878-003, it is an ideal service replacement to restore correct fastening and alignment of the flywheel on engines including GX120 and GX160. Using the correct OEM nut helps protect the crankshaft taper and key, supporting smooth starting and consistent ignition timing.
Key Features:
- Genuine Honda OEM part for assured fit and function
- High‐strength steel construction for durability and long service life
- Precision-machined threads for accurate torque and secure seating
- Designed to maintain flywheel position and engine stability under vibration
- Helps preserve correct timing and starting performance when fitted properly
- Compatible with a broad range of Honda engines across mowers, tillers, and generators
- Straightforward replacement using standard hand tools
- Supports reliable maintenance routines and reduces the risk of loosening in service
Typical Applications:
Used to fasten the flywheel on Honda engines found in lawn mowers, generators, tillers, and other compact machinery. Suitable for routine overhauls, flywheel removal/refit during ignition or crank seal work, and preventative maintenance where the original nut is worn or damaged.
Also known as:
Flywheel retaining nut, crankshaft flywheel nut, engine flywheel fastener, flywheel fixing nut, Honda engine nut, engine retaining nut.
Fits Models:
EU26i, F720, F720 Versatile, G150, G150K1, G200, G200K1, GC135, GC160, GC160A, GCV135, GCV160, GCV160A, GS160A, GSV160A, GX110, GX120, GX120K1, GX120U1, GX140, GX160, GX160K1, GX160U1, GX200, GX200U, HRB425 CQX, HRB425CQX, HRD535 HXE, HRD535 QME, HRD535 QXE, HRD535 SME, HRD535 SXE, HRD535HXE, HRD535QME, HRD535QXE, HRD535SME, HRD535SXE, HRD536C HXE, HRD536C SXE, HRD536C2 HXE, HRD536C2 HXEE, HRD536C2 TXE, HRD536C2 TXEE, HRD536C2HXE, HRD536C2HXEE, HRD536C2TXE, HRD536C2TXEE, HRD536C3 HXEE, HRD536C3 TXEE, HRD536C3HXEE, HRD536C3TXEE, HRD536CHXE, HRD536CSXE, HRG415, HRG415 PDE, HRG415 SD, HRG415C1 PDEE, HRG415C1 SDEE, HRG415C1-PDEE, HRG415C1PDEE, HRG415C1SDEE, HRG415C2 PDE, HRG415C2 PDEE, HRG415C2 SDE, HRG415C2 SDEE, HRG415C2 SDEE/A, HRG415C2-PDE, HRG415C2-PDEE/A, HRG415C2PDE, HRG415C2PDEE, HRG415C2SDE, HRG415C2SDEE, HRG415C3 PDEE, HRG415C3 SDEE, HRG415C3PDEE, HRG415C3SDEE, HRG415PDE, HRG415SD, HRG465C1 PDE, HRG465C1 PDEE, HRG465C1 SDE, HRG465C1 SDEE, HRG465C1PDE, HRG465C1PDEE, HRG465C1SDE, HRG465C1SDEE, HRG465C2 PDEE, HRG465C2 PDEE/A, HRG465C2 SDEE, HRG465C2 SDEE/A, HRG465C2PDEE, HRG465C2SDEE, HRG465C3 PDEE, HRG465C3 SDEE, HRG465C3PDEE, HRG465C3SDEE, HRG536 PDE, HRG536C SDF, HRG536C SDT, HRG536C1 PDE, HRG536C1 PDE/A, HRG536C1 PDEA, HRG536C1 PDEA/A, HRG536C1 SDE, HRG536C1 SDE/A, HRG536C1 SDEA, HRG536C1 SDEA/A, HRG536C1 SDF, HRG536C1 SDF/A, HRG536C1 SDFA, HRG536C1 SDFA/A, HRG536C1 SDT, HRG536C1 SDT/A, HRG536C1 SDTA, HRG536C1 SDTA/A, HRG536C1PDE, HRG536C1PDEA, HRG536C1SDE, HRG536C1SDEA, HRG536C1SDF, HRG536C1SDT, HRG536CSDF, HRG536CSDT, HRG536PDE, HRH536 HXE, HRH536 QXE, HRH536HXE, HRH536K1 HXE, HRH536K1 QXE, HRH536K1HXE, HRH536K1QXE, HRH536K2 HXE, HRH536K2 QXE, HRH536K2HXE, HRH536K2QXE, HRH536QXE, HRX426 QX, HRX426 RXE, HRX426C PDE, HRX426C PXE, HRX426C SDE, HRX426CPDE, HRX426CPXE, HRX426CSDE, HRX426QX, HRX426RXE, HRX476 HX, HRX476 SX, HRX476C PXE, HRX476C QXE, HRX476CPXE, HRX476CQXE, HRX476HX, HRX476SX
Alternate Part Numbers:
90201-878-003, 90201878003
Product Specifications
| L&S Part No. | 90201 878 003 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 90201878003 |
| Unit of Sale | 1 |
| Size | 14mm |
| Applications | EU26i, F720, F720 Versatile, G150, G150K1, G200, G200K1, GC135, GC160, GC160A, GCV135, GCV160, GCV160A, GS160A, GSV160A, GX110, GX120, GX120K1, GX120U1, GX140, GX160, GX160K1, GX160U1, GX200, GX200U, HRB425 CQX, HRB425CQX, HRD535 HXE, HRD535 QME, HRD535 QXE, HRD535 SME, HRD535 SXE, HRD535HXE, HRD535QME, HRD535QXE, HRD535SME, HRD535SXE, HRD536C HXE, HRD536C SXE, HRD536C2 HXE, HRD536C2 HXEE, HRD536C2 TXE, HRD536C2 TXEE, HRD536C2HXE, HRD536C2HXEE, HRD536C2TXE, HRD536C2TXEE, HRD536C3 HXEE, HRD536C3 TXEE, HRD536C3HXEE, HRD536C3TXEE, HRD536CHXE, HRD536CSXE, HRG415, HRG415 PDE, HRG415 SD, HRG415C1 PDEE, HRG415C1 SDEE, HRG415C1-PDEE, HRG415C1PDEE, HRG415C1SDEE, HRG415C2 PDE, HRG415C2 PDEE, HRG415C2 SDE, HRG415C2 SDEE, HRG415C2 SDEE/A, HRG415C2-PDE, HRG415C2-PDEE/A, HRG415C2PDE, HRG415C2PDEE, HRG415C2SDE, HRG415C2SDEE, HRG415C3 PDEE, HRG415C3 SDEE, HRG415C3PDEE, HRG415C3SDEE, HRG415PDE, HRG415SD, HRG465C1 PDE, HRG465C1 PDEE, HRG465C1 SDE, HRG465C1 SDEE, HRG465C1PDE, HRG465C1PDEE, HRG465C1SDE, HRG465C1SDEE, HRG465C2 PDEE, HRG465C2 PDEE/A, HRG465C2 SDEE, HRG465C2 SDEE/A, HRG465C2PDEE, HRG465C2SDEE, HRG465C3 PDEE, HRG465C3 SDEE, HRG465C3PDEE, HRG465C3SDEE, HRG536 PDE, HRG536C SDF, HRG536C SDT, HRG536C1 PDE, HRG536C1 PDE/A, HRG536C1 PDEA, HRG536C1 PDEA/A, HRG536C1 SDE, HRG536C1 SDE/A, HRG536C1 SDEA, HRG536C1 SDEA/A, HRG536C1 SDF, HRG536C1 SDF/A, HRG536C1 SDFA, HRG536C1 SDFA/A, HRG536C1 SDT, HRG536C1 SDT/A, HRG536C1 SDTA, HRG536C1 SDTA/A, HRG536C1PDE, HRG536C1PDEA, HRG536C1SDE, HRG536C1SDEA, HRG536C1SDF, HRG536C1SDT, HRG536CSDF, HRG536CSDT, HRG536PDE, HRH536 HXE, HRH536 QXE, HRH536HXE, HRH536K1 HXE, HRH536K1 QXE, HRH536K1HXE, HRH536K1QXE, HRH536K2 HXE, HRH536K2 QXE, HRH536K2HXE, HRH536K2QXE, HRH536QXE, HRX426 QX, HRX426 RXE, HRX426C PDE, HRX426C PXE, HRX426C SDE, HRX426CPDE, HRX426CPXE, HRX426CSDE, HRX426QX, HRX426RXE, HRX476 HX, HRX476 SX, HRX476C PXE, HRX476C QXE, HRX476CPXE, HRX476CQXE, HRX476HX, HRX476SX |
| Fits Brands | Honda |
| Fits Models | GX110 | GX140 | GX120K1 (GC01) | GX200 (GCAE) | GX120U1 (GCAHK) | GX200 (GDAB) | GX160K1 (GC02) | GX160K1 (GCAAK) | GX160U1 (GCACK) | GX160K1 (GDAA) | GX200U (GCAJK) | GC160 (GCAH) | GC160A (GCAHA) | G150 | G150K1 | G200 | G200K1 | GS160A (GCABA) | GSV160A (GJABA) | GCV135 (GJAF) | GCV160 (GJAE) | GCV160A (GJAEA) | EU26i | HRB425 CQX | HRG415 SD (Izy) | HRG415 PDE (Izy) | HRG536 PDE (Izy) | HRX426 QX | HRX426 RXE | HRX476 HX | HRX476 SX | F720 Versatile | HRH536 QXE | HRG415C1 (IZY) - PDEE | HRG415C1 SDEE (Izy) | HRG415C2 (IZY) - PDE | HRG415C2 PDEE (Izy) | HRG415C2 (IZY) - PDEE/A | HRG415C2 SDE (Izy) | HRG415C2 SDEE (Izy) | HRG415C2 SDEE/A (Izy) | HRG415C3 PDEE (Izy) | HRG415C3 SDEE (Izy) | HRD535 HXE | HRD535 QME | HRD535 QXE | HRD535 SME | HRD535 SXE | HRG465C1 PDE (Izy) | HRG465C1 PDEE (Izy) | HRG465C1 SDE (Izy) | HRG465C1 SDEE (Izy) | HRG465C2 PDEE (Izy) | HRG465C2 PDEE/A (Izy) | HRG465C2 SDEE (Izy) | HRG465C2 SDEE/A (Izy) | HRG465C3 PDEE (Izy) | HRG465C3 SDEE (Izy) | HRH536 HXE | HRH536K1 HXE | HRH536K1 QXE | HRH536K2 HXE | HRH536K2 QXE | HRX426C PDE | HRX426C PXE | HRX426C SDE | HRX476C PXE | HRX476C QXE | HRD536C HXE | HRD536C SXE | HRD536C2 HXE | HRD536C2 HXEE | HRD536C2 TXE | HRD536C2 TXEE | HRD536C3 HXEE | HRD536C3 TXEE | HRG536C SDF | HRG536C SDT | HRG536C1 PDE (Izy) | HRG536C1 PDE/A (Izy) | HRG536C1 PDEA (Izy) | HRG536C1 PDEA/A (Izy) | HRG536C1 SDE (Izy) | HRG536C1 SDE/A (Izy) | HRG536C1 SDEA (Izy) | HRG536C1 SDEA/A (Izy) | HRG536C1 SDF (Izy) | HRG536C1 SDF/A (Izy) | HRG536C1 SDFA (Izy) | HRG536C1 SDFA/A (Izy) | HRG536C1 SDT (Izy) | HRG536C1 SDT/A (Izy) | HRG536C1 SDTA (Izy) | HRG536C1 SDTA/A (Izy) |
