The Multiquip 8972578750 is a genuine OEM Piston O/S=0.25 DCA25USI 4LE2 designed for the DCA25USI ultra-silent diesel generator. As a factory-sourced oversize piston at a 0.25mm oversize specification, this component is engineered to restore proper cylinder-to-piston clearance during an engine overhaul on the Isuzu 4LE2-powered DCA25USI. Sourced directly through Multiquip's OEM supply chain, this part carries the same specifications as the component originally installed at the factory. DHS Equipment stocks genuine Multiquip parts so you can complete your repair with confidence and get your generator back in service.
Key Features
- OEM Oversize Specification: — Cast and machined to the exact 0.25mm oversize tolerance required for the Isuzu 4LE2 engine, ensuring correct compression and ring seal after cylinder boring.
- Direct Engine Fit: — Engineered specifically for the Isuzu 4LE2 powerplant found in the DCA25USI, allowing the piston to drop into the bored cylinder without additional modification to crown height or pin bore dimensions.
- Confirmed Fitment for DCA25USI: — Verified for use in the Multiquip DCA25USI ultra-silent generator series; always cross-reference your engine serial number before ordering an oversize piston.
- Restored Power Output: — A correctly sized piston maintains proper compression ratio, which directly affects the generator's ability to deliver stable voltage and rated wattage under load.
- Engine Longevity After Rebuild: — Using the correct OEM oversize piston during a rebuild prevents premature ring wear, blow-by, and oil consumption that result from imprecise piston-to-wall clearance.
A piston is the reciprocating component inside the engine cylinder that converts combustion pressure into mechanical force to drive the crankshaft. During an engine overhaul, if the cylinder bore is worn beyond its standard limit, the cylinder is machined to a larger diameter and an oversize piston — such as this 0.25mm oversize unit — is installed to restore the proper fit between the piston and the cylinder wall. Without the correct clearance, an engine will suffer from poor compression, increased oil consumption, and reduced power output, all of which directly impact a generator's ability to maintain consistent electrical output under load.
Part Details
| Part Number | 8972578750 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston O/S=0.25 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.
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