The Honda GX 200 is a 0.2 L 1-cylinder o.h.v. engine rated at 3600 rpm, producing up to 4.73 kW. It powers generator sets from Alpha Technologies, Honda and SDMO, including the AlphaGen Portable 3.0kW Series, EU3000iS, GX200 and ALIZE 3000 UK. It holds 0.63 L (0.2 gal) of oil and 25.3 L (6.7 gal) of coolant.
Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|
| Air filter | every 100 hours and every 200 hours or 3 months, whichever comes first | | — | 200 hr | |
| Fuel filter | | | — | 300 hr | |
| Oil filter | after the first 50 hours of operation and every 200 hours or 3 months, whichever comes first | | — | 200 hr | |
| Battery | every 100 hours and every 200 hours or 3 months, whichever comes first | | — | 200 hr | |
| Belt | every 100 hours and every 200 hours or 3 months, whichever comes first | | — | 200 hr | |
| Coolant | after the first 50 hours of operation and every 200 hours or 3 months, whichever comes first | | — | 200 hr | |
| Oil | after the first 50 hours of operation and every 200 hours or 3 months, whichever comes first | | — | 200 hr | |
| Spark plug | every 100 hours and every 200 hours or 3 months, whichever comes first | | — | 200 hr | |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
Parts cataloged across the Honda GX200 family
12| Part # | Description | Category |
|---|
| 745-764-21 | Cable Bag and Cable Key Lanyard | Cable bag and key lanyard |
| 745-131-21 | Enclosure Upgrade Kit | Enclosure upgrade kit |
| TY25808 | Gasoline Conditioner & Stabilizer | Fluid |
| TY6354 | Hy-Gard™ Transmission Oil | Fluid |
| P07-013107 | Prime water supply hose. | Hose |
| PIC89-102299R0 | Changing nozzle. | Injector |
| 745-792-20 | Locking Handle | Locking handle |
| 745-131-20 | Punch Tool Kit for Enclosures, 2.5" dia | Service part / kit |
| 745-793-20 | Portable Generator Wheel Kit | Service part / kit |
| 854-0093 | Dome Isolators | Service part / kit |
| P11-013107 | Detergent usage guide. | Service part / kit |
| RBH0-5 | Box of 24 o.5L cans of oil or 20 1 L cans of oil (SAE 15W40) | Service part / kit |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Common questions
What is the oil capacity of the Honda GX 200?
The Honda GX 200 engine has an oil capacity of 0.63 liters.
What is the displacement of the Honda GX 200?
The Honda GX 200 has a displacement of 0.196 liters with 1 cylinders.
Which generators use the Honda GX 200 engine?
The Honda GX 200 powers 6 generator set(s), including Alpha Technologies AlphaGen Portable 3.0kW Series, Honda EU3000iS, Honda GX200, SDMO ALIZE 3000 UK, SDMO HX 3000.
How often should you change the oil in the Honda GX 200?
The Honda GX 200 oil change interval is every 200 hours.
What is a common problem with the Honda GX 200 engine?
A commonly reported issue on generators using the Honda GX 200 is: Water leaks from brass valve on pump.. Cause: Thermal Relief Valve opening to protect pump.. Fix: Do not run washer with gun trigger closed for more than 3 minutes. Trigger gun to close valve..