The Honda 12361-887-000 Tappet Room Cover is a genuine OEM replacement designed for EG1000 and EG1400 generators, the G150 horizontal shaft engine, the HS35 single-stage snow blower, WA20, WA30, and WB20 water pumps, and the F400 tiller. As an authentic Honda part, it is manufactured to the same specifications as the original, ensuring a proper fit without rework or modification. Because Honda supersedes parts at serial breaks across this wide range of equipment, always confirm the part number 12361-887-000 against your machine's serial number before ordering.
Key Features
- Genuine OEM Sealing Integrity — manufactured by Honda to the original specification, maintaining the correct closure and retention at the tappet room opening that an aftermarket cover may not replicate.
- Direct-Fit Replacement — engineered to drop into place on compatible Honda equipment with no alterations, matching original mounting points and profile exactly.
- Broad Compatibility — fits EG1000 and EG1400 generators, the G150 engine, the HS35 single-stage snow blower, WA20, WA30 and WB20 water pumps, and the F400 tiller, including equipment spanning multiple Honda catalogues.
- Serial Number Verification Recommended — Honda updates part specifications at production serial breaks; check your unit's serial number against the fitment table to confirm this cover is correct for your machine.
The tappet room cover seals the valve train cavity on side-valve Honda engines, keeping oil contained within the crankcase and preventing contamination from entering the area around the valves and tappets. A damaged, cracked, or missing cover allows oil to escape and exposes the valve train to dirt and debris, leading to accelerated wear and potential engine damage. Replacing a compromised cover restores proper sealing and helps the engine maintain clean, consistent valve operation.
Part Details
| Part Number | 12361-887-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Tappet Room Cover |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EG1000 | 1454981-9999999 |
| Generator | EG1400 | All |
| Horizontal Shaft Engine | G150 | 1454981-9999999 |
| Single-Stage Snow Blower | HS35 | 1454981-9999999 |
| Tiller | F400 | 1454981-9999999 |
| Water Pump | WA20, WA30, WB20 | 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.
