The Multiquip 8972272831 is a genuine OEM Shim Injection Pump DCA25USI 4LE2 designed for the DCA25USI ultra-silent diesel generator. Sourced directly from Multiquip, this shim is an exact-match component that maintains the precise injection pump timing critical to clean, consistent generator output. Verified fitment for the DCA25USI makes this the right choice when restoring the fuel injection system to original operating specification.
Key Features
- OEM Injection Timing Precision — Genuine OEM shim maintains the exact thickness tolerance required to set correct injection pump timing on the 4LE2 engine, preventing timing drift that causes hard starts, rough running, or excessive fuel consumption.
- Direct-Fit Replacement — Machined to the original profile of the DCA25USI injection pump mounting interface, this shim seats and torques down without rework or shimming adjustments.
- Confirmed DCA25USI Fitment — Specifically matched to the DCA25USI ultra-silent diesel generator powered by the Isuzu 4LE2 engine; verify your model before ordering.
- Protects Injection Pump Longevity — A correctly shimmed injection pump runs with proper load distribution across its drive components, reducing wear on the pump and associated fuel system hardware.
- Fuel System Safety — Correct injection pump alignment is essential to safe diesel operation; an improperly shimmed pump can cause uncontrolled injection pressure variation, making this a critical-fit component during any pump service.
The injection pump shim is a precision spacer placed between the injection pump body and its mounting surface on the engine block. Its thickness directly controls the position of the pump drive gear, which sets injection timing — the exact moment fuel is delivered into the combustion chamber relative to piston travel. Even a small deviation in shim thickness can advance or retard timing enough to cause poor combustion efficiency, increased exhaust emissions, or difficulty starting. When servicing or replacing the injection pump on a DCA25USI, using the correct OEM shim ensures timing is restored to the manufacturer's specification and the engine performs as intended.
For fitment questions or help confirming compatibility with your DCA25USI serial number, contact the DHS Equipment parts team before ordering.
Part Details
| Part Number | 8972272831 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Shim Injection Pump DCA25USI 4LE2 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA25USI |
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.
