The Multiquip 366345990 Cylinder Spring MTX 70 is a genuine OEM component designed for MTX70HF, MTX70HD, MTX70HDR, and MTX80HDR rammers. As a direct factory replacement, this spring is manufactured to the same specifications as the original part, ensuring proper fit and function within the compaction cylinder assembly. Sourced directly through authorized Multiquip distribution, 366345990 is the correct part for operators maintaining MTX-series rammers and looking to restore full compaction performance.
Key Features
- Genuine OEM Spring Tension Rating — Manufactured to the original spring rate specification, so the cylinder delivers consistent stroke energy with every impact cycle.
- Direct Drop-In Replacement — Engineered to seat and retain exactly as the factory original within the cylinder assembly, requiring no modification to surrounding components.
- Confirmed Fitment for MTX Rammers — Verified for MTX70HF, MTX70HD, MTX70HDR, and MTX80HDR models, covering both float and diaphragm carburetor variants across GX100 and GX120 Honda engine configurations.
- Restores Full Compaction Stroke — A worn or fatigued cylinder spring causes reduced impact force and inconsistent tamping depth; replacing it with this OEM part brings the rammer back to its rated compaction output.
- Extends Component Service Life — Correct spring tension prevents premature wear on adjacent cylinder components by maintaining proper mechanical timing throughout the reciprocating assembly.
The cylinder spring in an MTX-series rammer is a core element of the machine's reciprocating compaction mechanism. It stores and releases energy in coordination with the piston stroke, driving the tamping shoe downward with the force needed to compact soil, gravel, or trench backfill. When this spring weakens, cracks, or breaks, the rammer loses impact power, produces an irregular stroke cycle, and can cause additional stress on the cylinder bore and piston — turning a simple spring replacement into a more costly repair if left unaddressed.
For questions about fitment or to confirm this is the correct part for your machine, contact the DHS Equipment parts team for assistance.
Part Details
| Part Number | 366345990 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Cylinder Spring MTX 70 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rammers | MTX70HF |
| Rammers | MTX70HDR |
| Rammers | MTX80HDR |
| 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.
