Description
Overview:
The Bolt, Drain for Honda Engines (MPN 90021-ZG3-003) is a genuine Honda OEM fastener for the engine oil drain port. This metal hex-head bolt is built for reliability and repeated servicing, helping you drain and reseal the crankcase cleanly during oil changes. It is intended for Honda industrial engines used across construction, agricultural, and garden machinery, including the GD320 and GD321. The precise fit and thread help maintain a proper seal at the sump, supporting correct oil management and engine longevity. Made to Honda's specification, it suits tough site use with vibration and temperature changes. Ideal as a like-for-like replacement when the original bolt is worn or damaged, or when restoring engines to factory condition.
Key Features:
- Genuine Honda OEM component for assured compatibility and fit
- Robust metal construction for durability under heat and vibration
- Precise thread and seating face for reliable sealing at the sump
- Clean, controlled oil drainage to support quick servicing
- Hex-head design accepts standard spanners/sockets for easy removal and fitting
- Direct replacement for the original bolt on applicable Honda engines
- Helps prevent oil weeps when used with an appropriate sealing washer
- Suitable for regular maintenance schedules in trade and DIY settings
- Supports engine health by enabling thorough, routine oil changes
- Compatible with Honda GD-series engines named in the fitment list
Typical Applications:
Used during oil changes on Honda-powered equipment such as site generators, water pumps, compactors, mixers, and agricultural or garden machinery. Ideal for replacing damaged or rounded drain bolts, restoring a secure seal on the crankcase and ensuring smooth, mess-free oil draining in workshops, on-site, or at home.
Also known as:
Sump plug, oil sump bolt, crankcase drain plug, oil pan plug, engine oil plug, oil plug bolt, crankcase plug.
Fits Models:
GD320, GD321, GD411
Alternate Part Numbers:
90021-ZG3-003, 90021ZG3003
Product Specifications
| L&S Part No. | 90021 ZG3 003 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 90021-ZG3-003 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Honda |
| Key Features | - Genuine Honda OEM for assured compatibility and fit - Robust metal construction for durability under heat and vibration - Precise thread ensures reliable sealing at the sump - Hex-head design fits standard spanners/sockets - Compatible with Honda GD320, GD321, GD411 engines |
| Fits Models | GD320 (GPB) | GD321 (GPAD) | GD411 (GPAC) |

