The Multiquip 01265000 is a genuine OEM Piston Ring Set +1.0 designed for MVH502DSB2, MVH502DSB, MDR-9D, and MQ41TDH equipment. As a factory-sourced component, this oversize ring set is engineered to the exact tolerances required for a properly rebuilt engine, ensuring correct compression and oil control after a bore has been honed or machined to the +1.0mm oversize specification. Sourced directly through Multiquip's OEM supply chain, the part delivers the same fit and material grade as the rings installed at the factory. If you are rebuilding an engine across any of these Multiquip equipment families, verifying the bore oversize before ordering is essential — this set is intended specifically for +1.0mm overbore applications.
Key Features
- Oversize-Specific Compression Tolerancing — Ring dimensions are manufactured to the +1.0mm oversize specification, ensuring correct ring-to-wall clearance and consistent compression seal after an overbore engine rebuild.
- Genuine OEM Material Grade — Cast and treated to Multiquip's original material specification, matching the wear resistance and thermal performance of the rings the engine was engineered around.
- Drop-In Fit for Overbored Cylinders — Designed to seat correctly in a properly honed +1.0mm oversize bore with no additional fitting or grinding required on a correctly prepared cylinder.
- Broad Equipment Compatibility — Fits MVH502DSB2, MVH502DSB, MDR-9D, and MQ41TDH, covering reversible plate compactor, power trowel, and trash pump applications that share this engine platform.
- Restores Full Engine Output — Worn or broken piston rings cause blow-by, oil consumption, and loss of power; a correctly fitted oversize ring set restores compression and protects the freshly rebuilt cylinder wall.
Piston rings seal the combustion chamber between the piston and the cylinder wall, maintaining compression pressure during the power stroke while preventing engine oil from being drawn into the combustion chamber. A complete ring set typically includes compression rings and an oil control ring, each with a distinct role in keeping combustion gases above the piston and oil below it. When rings wear or break, the engine loses compression, burns oil, and produces visible smoke — symptoms that indicate a rebuild is needed. The Multiquip 01265000 Piston Ring Set +1.0 is sized for engines where the cylinder has already been bored out to the +1.0mm oversize, making it the correct replacement choice during a full engine overhaul on the applicable equipment models.
Part Details
| Part Number | 01265000 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston Ring Set +1.0 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Plate Compactors | MVH502DSB2 |
| Power Trowels | MDR-9D |
| Plate Compactors | MVH502DSB |
| MQ Trash Pumps | MQ41TDH |
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.
