Multiquip 366459910 Piston Pin Plug MTX 70

The Multiquip Piston Pin Plug MTX 70 is a genuine OEM component designed for MTX70HD, MTX70HDR, MTX70HF, and MTX80HDR rammers. Sourced directly from Multiquip, this plug is manufactured to the exact specifications required for proper piston pin retention in the MTX series tamper. If you're servicing one of these machines, using the correct OEM part ensures the repair is done right the first time. Confirm your model code against the fitment list before ordering to ensure compatibility.

Key Features

• Genuine OEM Construction — Manufactured to Multiquip's exact material and dimensional specifications for the MTX 70 piston assembly, ensuring a secure press-fit seal with no risk of misalignment.
• Direct-Fit Replacement — Engineered to drop into the piston pin bore of compatible MTX series rammers without modification, restoring the assembly to its original configuration.
• Broad MTX Series Fitment — Confirmed compatible with MTX70HD, MTX70HDR, MTX70HF, and MTX80HDR tampers, covering both GX100 and GX120 Honda engine variants.
• Protects Piston Integrity — A properly seated piston pin plug prevents lateral pin migration inside the bore, maintaining consistent compression and protecting the cylinder wall from scoring damage.
• Critical Engine Safety Component — A failed or missing piston pin plug can allow the pin to contact the cylinder bore, leading to rapid and costly engine failure; replacing it promptly is essential during any piston service.

The piston pin plug is a small but critical component that seals the end of the piston pin bore inside the engine's piston. Its job is to keep the wrist pin centered and prevent it from shifting laterally during the high-speed reciprocating motion of a rammer engine. Without a properly installed plug, the piston pin can contact the cylinder wall, causing severe scoring and engine damage. During any piston or top-end service on an MTX series tamper, inspecting and replacing this plug is an essential step to restoring full engine integrity.

DHS Equipment supplies genuine Multiquip OEM replacement parts with part number verification so you can order with confidence. For fitment questions on part 366459910 or any other Multiquip rammer component, contact the DHS Equipment parts team directly.

Part Details

Compatibility & Fitment

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.