The Multiquip 8972272901 is a genuine OEM Injection Pump Shim DCA25USI 4LE2 designed for the DCA25USI ultra-silent diesel generator. As a direct OEM component, 8972272901 is manufactured to the exact thickness and material specification required to maintain proper injection pump timing and fuel delivery on the Isuzu 4LE2 engine. Sourced directly through Multiquip's authorized parts network, this shim ensures the injection pump seats and functions precisely as the machine was engineered to operate. Verify your model and engine code before ordering to confirm this is the correct shim for your unit.
Key Features
- Exact OEM Thickness Spec — Manufactured to the precise dimensional tolerance required for correct injection pump positioning on the Isuzu 4LE2 engine, where even minor deviation affects fuel timing and combustion efficiency.
- Genuine Multiquip OEM Component — Supplied as an authentic Multiquip part, ensuring the shim material grade and geometry match the original design intent for the DCA25USI platform.
- Direct Fitment for DCA25USI — Engineered specifically for the DCA25USI ultra-silent generator, dropping into place during injection pump service or rebuild without modification to the pump mounting.
- Protects Injection Timing Accuracy — A correctly shimmed injection pump maintains consistent fuel delivery timing, which directly supports stable generator output voltage and frequency under load.
- Fuel System Integrity — Proper shim selection is critical during injection pump service; an incorrect shim can alter injection advance, leading to hard starting, rough running, or excessive exhaust emissions on diesel-powered equipment.
An injection pump shim is a precision spacer used during the installation or calibration of the diesel fuel injection pump. On the Isuzu 4LE2 engine fitted to the DCA25USI generator, the shim controls the axial position of the pump drive, which directly determines injection timing — the precise moment fuel enters the combustion chamber. When the shim is worn, damaged, or the wrong thickness, injection timing shifts out of specification, causing symptoms such as hard starting, loss of power, increased fuel consumption, or unstable generator output. Replacing it with the correct OEM shim during pump service restores the engine to its designed operating parameters.
For fitment questions or to confirm this part is correct for your DCA25USI serial number, contact the DHS Equipment parts team for assistance.
Part Details
| Part Number | 8972272901 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Injection Pump Shim 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.
