The Multiquip 12201Z0D305 is a genuine OEM Exhaust Valve Guide Assembly GX100 designed for Multiquip rammer and plate compactor models powered by the Honda GX100 engine, including the MTX50HD, MTX60HD, MTX60HF, MTX70HD, MTX70HF, MTX70HDR, MTX80HDR, MTR40HF, and MVC40H. As a direct OEM part, 12201Z0D305 is manufactured to the same specifications as the original component installed at the factory, ensuring a correct fit within the cylinder head without modification. This is the recommended replacement for operators maintaining or rebuilding GX100-powered Multiquip equipment to restore proper engine performance. Sourced through DHS Equipment, you can trust this part ships as the genuine article backed by Multiquip’s OEM supply chain.
Key Features
- OEM-Grade Valve Guide Tolerancing — Manufactured to the exact bore diameter and surface finish specifications required by the Honda GX100 engine, ensuring proper valve stem clearance and controlled oil consumption.
- Direct Head Replacement — Pressed into the cylinder head to the same depth and interference fit as the original, allowing straightforward installation during engine rebuild or valve service.
- Broad GX100-Powered Model Coverage — Confirmed fitment across MTX50HD, MTX60HD, MTX60HF, MTX70HD, MTX70HF, MTX70HDR, MTX80HDR, MTR40HF, and MVC40H equipment.
- Protects Valve Stem and Seat Integrity — A correctly fitted exhaust valve guide keeps the valve centered on its seat, maintaining compression and preventing premature wear on both the stem and the seating surface.
- Exhaust-Side Heat Resistance — The exhaust valve guide operates under significantly higher temperatures than the intake side; this OEM component is built from the appropriate material grade to withstand continuous exhaust-cycle heat on the GX100.
The exhaust valve guide is a precision sleeve pressed into the cylinder head that controls the side-to-side movement of the exhaust valve stem as it opens and closes during each engine cycle. By maintaining proper valve alignment, the guide ensures the valve face seats evenly, preserving combustion chamber compression and preventing hot exhaust gases from leaking past the valve. When a valve guide wears beyond its service limit, the valve stem develops excessive play, leading to poor sealing, increased oil burning, loss of power, and accelerated wear on the valve and seat — all of which are especially disruptive on the compact, high-cycle engines found in Multiquip rammers and plate compactors.
Part Details
| Part Number | 12201Z0D305 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Exhaust Valve Guide Assembly GX100 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rammers | MTX60HD |
| Rammers | MTX50HD |
| Plate Compactors | MVC40H |
| Rammers | MTR40HF |
| Rammers | MTX80HDR |
| Rammers | MTX70HDR |
| Rammers | MTX70HD |
| Rammers | MTX60HF |
| Rammers | MTX70HF |
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.
