The Multiquip 01243901 Piston Assembly Standard is a genuine OEM component designed for MVH502DSB, MVH502DSB2, MQ41TDH, and MDR-9D series equipment. As a direct OEM replacement, this assembly is produced to the same specifications as the original part, ensuring a correct fit within the engine or hydraulic system of your machine. Verify your model code and engine specification before ordering to confirm compatibility across these equipment families.
Key Features
- Genuine OEM Construction — Manufactured to original equipment specifications, delivering the same dimensional tolerances and material grade as the factory-installed assembly.
- Standard Bore Specification — Sized to standard bore dimensions for a direct drop-in installation without additional machining or modification.
- Broad Equipment Compatibility — Fits MVH502DSB, MVH502DSB2, MQ41TDH, and MDR-9D models, covering reversible plate compactor, trash pump, and power trowel applications within the Multiquip lineup.
- Maintains Compression Integrity — A properly seated piston assembly sustains correct compression ratio, directly supporting engine power output and consistent machine performance under load.
- Correct Part for Engine Rebuilds — When replacing worn or scored pistons, using the OEM-specified assembly ensures the combustion chamber returns to proper operating condition without introducing clearance variances.
The piston assembly is a core reciprocating component within the engine cylinder, responsible for converting combustion pressure into mechanical force that drives the machine. It works in conjunction with the piston rings and cylinder bore to maintain compression, control oil consumption, and transfer power efficiently to the crankshaft. When a piston assembly becomes worn, scored, or damaged, compression loss follows, resulting in reduced engine power, increased fuel consumption, excessive smoke, and eventual engine failure if left unaddressed.
Part Details
| Part Number | 01243901 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston Assembly Standard |
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.
