The Multiquip 01265101 is a genuine OEM Piston Assembly 100+0.5 designed for MVH502DSB, MVH502DSB2, MQ41TDH, and MDR-9D series equipment. As a direct OEM replacement, this assembly is manufactured to the same specifications as the original component, ensuring a correct fit across all compatible models. DHS Equipment stocks this part to help you get your machine back up and running with confidence. Verify your model code against the fitment list before ordering to confirm compatibility.
Key Features
- OEM-Matched Dimensional Tolerancing — Manufactured to the exact 100+0.5mm oversize specification, ensuring the piston seats and seals correctly within the cylinder bore without rework.
- Drop-In Installation — Engineered as a complete assembly, this unit installs directly into the engine block using existing hardware and mating components.
- Broad Fitment Coverage — Compatible with MVH502DSB, MVH502DSB2, MQ41TDH, and MDR-9D machines, covering reversible plate compactors, trash pumps, and power trowel applications in the Multiquip lineup.
- Restores Full Compression — A worn or damaged piston leads to lost compression, rough running, and hard starts; replacing it with this part restores proper cylinder pressure and consistent engine output.
- Fuel System Integrity — Correct piston fit reduces blow-by, preventing oil contamination and maintaining clean combustion across operating cycles.
The piston assembly is one of the most critical components inside an engine's cylinder. It transfers the force generated by combustion directly to the crankshaft, driving the machine's core function — whether that's compaction force, pump output, or trowel rotation. The +0.5mm oversize designation means this piston is sized for a cylinder that has been bored out by 0.5mm to correct wear or scoring. Using the wrong piston size in an oversized bore results in poor sealing, excessive oil consumption, and premature engine failure, making correct part selection essential before installation.
Part Details
| Part Number | 01265101 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston Assembly 100+0.5 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Plate Compactors | MVH502DSB |
| Plate Compactors | MVH502DSB2 |
| MQ Trash Pumps | MQ41TDH |
| Power Trowels | MDR-9D |
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.
