The Multiquip 71412022590 Piston with Ring OS=0.50 is a genuine OEM component designed for L48N6 and MTX-85DY rammers. This oversize piston and ring set is engineered to restore correct bore-to-piston clearance in engines that have been bored out during a top-end rebuild, ensuring a proper compression seal and full power recovery. As a direct Multiquip OEM part, 71412022590 matches the exact oversize specification required for these machines — no guesswork on sizing. Keep this part number on hand whenever performing an oversize engine rebuild on L48N6 or MTX-85DY equipment.
Key Features
- Oversize Rebuild Spec: — Supplied at OS=0.50 oversize to match bored cylinders, restoring the correct piston-to-wall clearance for full compression recovery.
- Genuine OEM Construction: — Manufactured to Multiquip's original material and dimensional tolerances, ensuring the ring seals and piston crown perform as the engine was designed to operate.
- Direct Top-End Replacement: — Piston and ring are supplied together as a matched set, simplifying engine reassembly and eliminating compatibility guesswork between components.
- Confirmed Fitment: — Verified for L48N6 and MTX-85DY rammer models; always cross-reference part number 71412022590 against your engine's bore specification before installation.
- Compression and Power Restoration: — A worn or undersized piston causes blow-by, loss of compression, hard starting, and reduced impact force; correct oversize replacement returns the rammer to full operating performance.
The piston and ring are the core of the engine's compression cycle. The piston travels up and down inside the cylinder bore, compressing the air-fuel mixture to drive combustion and deliver power to the rammer's drive mechanism. The piston ring seals the gap between the piston and the cylinder wall, preventing combustion gases from escaping and oil from entering the combustion chamber. When a cylinder is worn beyond standard tolerances, it is bored to an oversize dimension — the OS=0.50 piston and ring set is the corresponding replacement that restores that seal. Without the correct oversize fit, the engine will lose compression, run poorly, and fail to deliver the impact energy needed for effective compaction.
For questions about fitment or to confirm this is the correct oversize specification for your engine, contact the DHS Equipment team before ordering.
Part Details
| Part Number | 71412022590 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston with Ring OS=0.50 |
Compatibility & Fitment
| Name | Model |
|---|---|
| L48N6 | L48N6 |
| MTX-85DY | MTX-85DY |
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.
