The Multiquip 01264500 is a genuine OEM Piston Ring Set +0.5 designed for MVH502DSB2, MVH502DSB, MDR-9D, and MQ41TDH equipment. As a direct Multiquip OEM component, it is manufactured to the same specifications as the original, ensuring a correct fit within the engine cylinder bore without the guesswork of adapting an off-spec ring set. This oversized +0.5 ring set is intended for engines that have been bored out during a rebuild, restoring proper cylinder-to-piston sealing in worn or reconditioned engines. If you are sourcing parts for a scheduled engine overhaul or in-field rebuild, the part is the verified replacement for these models.
Key Features
- OEM Oversize Specification — Engineered to the +0.5mm oversize dimension required after cylinder boring, maintaining correct compression ring land fit and oil control ring tension.
- Direct Engine Rebuild Fitment — Designed to install into a bored cylinder on compatible engines, eliminating the need to source third-party ring sets that may not match groove depth or gap tolerances.
- Broad Model Coverage — Confirmed fitment for MVH502DSB2, MVH502DSB, MDR-9D, and MQ41TDH machines across reversible plate compactor, ride-on trowel, and trash pump families.
- Restored Compression and Oil Control — Properly sized rings re-establish cylinder seal, recovering lost compression and preventing oil burning that results from worn or incorrectly sized rings.
- Fuel Efficiency Protection — Correct ring seal prevents blow-by that degrades combustion efficiency, helping the engine deliver its rated output after a rebuild.
Piston rings form the dynamic seal between the piston and the cylinder wall inside an engine. They serve two critical jobs: holding combustion pressure above the piston so the engine produces power, and scraping excess oil off the cylinder wall so it does not burn in the combustion chamber. When rings wear, crack, or are replaced with an incorrect size, the engine loses compression, burns oil, produces excessive smoke, and can no longer deliver consistent power to operate the machine. A +0.5 oversize ring set like the Multiquip 01264500 is used specifically during engine rebuilds where the cylinder has been bored beyond its original diameter — the larger rings close the gap and restore the tight seal that a standard-size ring can no longer provide in a bored bore.
For help confirming that this part is the correct part for your specific serial number or engine configuration, contact the DHS Equipment team directly.
Part Details
| Part Number | 01264500 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston Ring Set +0.5 |
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.
