Multiquip 2842351207 Piston Ring Set 0.25MM

The Multiquip 2842351207 Piston Ring Set 0.25MM is a genuine OEM component designed for MT55F, MTR40F, and MTR40SF series rammers. As a factory-authorized part, it is manufactured to the exact tolerances required to maintain proper cylinder compression and engine performance in Multiquip tamper and trench rammer applications. This 0.25MM oversize set is intended for engines that have been bored to accept the corresponding oversize piston, making it the correct choice for a precision engine rebuild. Verify your machine's bore specification before ordering to confirm this ring set matches your application.

Key Features

• OEM Compression Tolerancing — Manufactured to exact oversize specifications, ensuring proper ring-to-wall seal and consistent cylinder compression across the engine's service life.
• 0.25MM Oversize Specification — Sized for use following a 0.25MM cylinder bore, this set installs directly onto the matching oversize piston without secondary modification.
• Rammer Family Fitment — Confirmed fit for MT55F, MTR40F, and MTR40SF Multiquip rammers, covering both standard tamper and trench rammer configurations.
• Restored Engine Power — Worn or broken piston rings allow combustion gases to bypass the piston, causing loss of compression and impact force; replacing with this OEM set restores full tamping performance.
• Fuel Efficiency Protection — Properly seated rings prevent oil from entering the combustion chamber, reducing oil consumption and keeping exhaust clean during operation.

Piston rings seal the gap between the piston and the cylinder wall, maintaining the compression pressure needed to drive combustion in the engine. In a rammer, strong compression is directly tied to the machine's impact energy — if the rings are worn, cracked, or improperly sized, the engine loses power and the tamping foot delivers reduced compaction force. A 0.25MM oversize ring set like the Multiquip 2842351207 is used specifically when the cylinder bore has been machined to remove wear damage, restoring a tight, consistent seal between the piston and the freshly bored cylinder wall.

For questions about fitment or to confirm the correct oversize specification for your engine, contact the DHS Equipment team before placing your order.

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.