The Honda 12361-889-000 Tappet Room Cover is a genuine OEM replacement designed for G300 horizontal shaft engines, E2500, EB3000, and EM3000 generators, the FR700 tiller, the HS70 two-stage snow blower, and the WT30 water pump. As a direct OEM component sourced from Honda, this cover is manufactured to the exact tolerances required for a proper seal over the valve train. Confirm your unit's serial number against the fitment table before ordering, as Honda supersedes parts at specific serial breaks across this range of equipment.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this cover meets the exact dimensional and sealing requirements Honda specifies for the tappet room on these engines and equipment.
- Valve Train Protection — seals the tappet room to keep the valve gear free of contamination and retain oil, supporting consistent valve operation and engine longevity.
- Broad Equipment Compatibility — fits G300 horizontal shaft engines, E2500, EB3000, and EM3000 generators, FR700 tillers, HS70 two-stage snow blowers, and WT30 water pumps, including equipment powered by the G300 engine.
- Serial Number Verification Recommended — Honda revises parts across production runs; check your machine's serial number against the fitment table to confirm part number 12361-889-000 is correct for your unit.
The tappet room cover seals the cavity that houses the valve tappets — the small components that transfer motion from the camshaft to open and close the engine's intake and exhaust valves. By enclosing this area, the cover keeps dirt and debris out while retaining the oil that lubricates the tappets and valve stems. When this cover is cracked, warped, or missing its seal, oil can leak from the engine and contaminants can enter the valve train, leading to accelerated wear, rough running, and potential engine damage.
Part Details
| Part Number | 12361-889-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Tappet Room Cover |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | E2500 | 1136498-9999999 |
| Generator | EB3000, EM3000 | All |
| Horizontal Shaft Engine | G300 | 1136498-9999999 |
| Tiller | FR700 | All |
| Two-Stage Snow Blower | HS70 | All |
| Water Pump | WT30 | All |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
