The Multiquip 5156310090 Plunger Assembly is a genuine OEM component designed for the DCA25SSI, DCA25SSIU, DCA25SSI2, DCA25SSAI, and DCA25SSIU-GEER ultra-silent diesel generator series. Sourced directly from Multiquip, this plunger assembly meets the exact specifications of the original part installed at the factory. Confirmed fitment across the DCA25SSI family makes this a straightforward, confidence-forward replacement for service technicians and fleet managers keeping these generators in peak operating condition.
Key Features
- Genuine OEM Construction — Built to the precise tolerances required for correct plunger travel and seal engagement in Multiquip DCA-series generator systems.
- Direct Replacement for DCA25SSI Family — Fits DCA25SSI, DCA25SSIU, DCA25SSI2, DCA25SSAI, and DCA25SSIU-GEER models; installs in place of the original without modification.
- Maintains Fuel or Fluid System Integrity — A correctly functioning plunger assembly ensures consistent pressure delivery and proper valve actuation, keeping the generator's fuel or hydraulic circuit operating as designed.
- Prevents System Pressure Loss — Worn or damaged plunger assemblies lead to pressure drop, erratic operation, or complete system failure — replacing with an OEM part restores correct function immediately.
- Fuel System Compliance — On generator applications, plunger assemblies are critical to fuel metering accuracy; using a genuine OEM part ensures the system operates within designed output and emissions parameters.
A plunger assembly is a precision reciprocating component used within fuel injection, governor, or fluid control systems to regulate the delivery of fuel or hydraulic pressure through a metered, back-and-forth pumping action. In diesel generator applications such as the DCA25SSI series, the plunger works in close tolerance with its bore to maintain consistent pressure and accurate flow — directly affecting engine speed stability, load response, and power output. When the plunger wears or fails, the result is typically erratic engine behavior, loss of prime, or an inability to maintain rated output under load.
For help confirming this is the right part for your machine, contact the DHS Equipment team with your model number and we'll verify compatibility before you order.
Part Details
| Part Number | 5156310090 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Plunger Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA25SSIU |
| Diesel Powered Generators | DCA25SSI |
| Diesel Powered Generators | DCA25SSI2 |
| Diesel Powered Generators | DCA25SSAI |
| Diesel Powered Generators | DCA25SSIU-GEER |
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.
