The Multiquip 13331Z8B900 Woodruff Key 25x18 MTX70HD is a genuine OEM component designed for the MTX70HD tamping rammer. As a direct factory replacement, this key ensures the correct positional relationship between the crankshaft and its mating component, maintaining precise shaft timing straight out of the box. Sourced directly from Multiquip, part 13331Z8B900 meets the exact dimensional and material specifications required for the MTX70HD platform.
Key Features
- Genuine OEM Dimensional Accuracy — Machined to the exact 25x18 Woodruff key profile specified for the MTX70HD, ensuring a flush, play-free seat in the crankshaft keyway.
- Direct Shaft Fit — Drops directly into the existing keyway slot with no filing or shimming required, preserving correct angular alignment between shaft and hub on installation.
- MTX70HD Specific — Confirmed fitment for the Multiquip MTX70HD tamping rammer, the 70 lb class rammer equipped with the GX100 Honda engine and diaphragm carburetor.
- Prevents Shaft Slip and Timing Loss — A correctly seated Woodruff key locks the driven component to the shaft; a worn or sheared key causes immediate loss of drive and potential secondary damage to the crankshaft taper.
- Critical Drivetrain Safety Component — Proper key engagement is essential for safe rammer operation; a failed key can result in sudden loss of percussive function and uncontrolled machine behavior.
A Woodruff key is a small, semi-circular steel key that seats into a curved keyway machined into a shaft, locking a hub, gear, or flywheel to that shaft so both rotate together as a single unit. On a tamping rammer like the MTX70HD, it maintains the fixed angular position of the crankshaft drive component, which is essential for consistent percussive stroke timing. When the key shears or wears, the mating component can slip or spin freely on the shaft, causing an immediate loss of compaction force and risking deeper damage to the crankshaft taper or the driven hub.
For questions about fitment or to confirm this is the correct part for your machine, contact the DHS Equipment team directly.
Part Details
| Part Number | 13331Z8B900 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Woodruff Key 25x18 MTX70HD |
Compatibility & Fitment
| Name | Model |
|---|---|
| Tamping 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.
