The Multiquip 90012333000 is a genuine OEM Tappet Adjusting Screw GX100 HC- designed for MTX50HD, MTX60HD, MTX60HF, MTX70HD, MTX70HDR, MTX70HF, MTX80HDR, MTR40HF, and MVC40H equipment. As a factory-sourced component, 90012333000 matches the original specification for correct valve clearance setup on Honda GX100-powered machines. Confirm your model code against the fitment list before ordering to ensure a direct match.
Key Features
- Genuine OEM Valve Train Accuracy — Manufactured to the original Honda GX100 specification, ensuring the screw threads, head profile, and locking behavior match what was installed at the factory.
- Direct-Install Replacement — Seats into the rocker arm assembly the same way as the original, with no reworking of the adjuster locknut or rocker geometry needed.
- Broad GX100 Fitment — Compatible with MTX50HD, MTX60HD, MTX60HF, MTX70HD, MTX70HDR, MTX70HF, MTX80HDR rammers, the MTR40HF trench rammer, and the MVC40H plate compactor.
- Correct Valve Clearance, Consistent Power — A properly functioning tappet adjusting screw holds valve clearance within spec, keeping combustion timing consistent and engine output stable across compaction cycles.
- Engine Longevity — Incorrect or worn tappet screws accelerate valve seat wear and can lead to hard starting, loss of compression, and premature engine damage — using the correct OEM screw prevents these failure modes.
The tappet adjusting screw is a small but critical component in the valve train of a four-stroke engine like the Honda GX100. It sits inside the rocker arm and allows a technician to set the precise gap between the rocker and the valve stem — a measurement known as valve clearance. When this screw is worn, stripped, or out of adjustment, valve clearance falls outside specification, which leads to symptoms including rough running, hard starting, reduced compression, and accelerated valve wear. Replacing a damaged or seized adjuster screw with the correct OEM part restores the ability to set and hold proper clearance, keeping the engine running at full efficiency.
Part Details
| Part Number | 90012333000 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Tappet Adjusting Screw GX100 HC-0294819 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rammers | MTX70HF |
| Rammers | MTX60HF |
| Rammers | MTX70HDR |
| Rammers | MTX80HDR |
| Rammers | MTR40HF |
| Plate Compactors | MVC40H |
| Rammers | MTX50HD |
| Rammers | MTX60HD |
| Rammers | MTX70HD |
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.
