The Multiquip 8972454150 is a genuine OEM Piston DCA-45USJ 4JG1 designed for the DCA-45USJ ultra-silent generator. As a direct OEM component, this piston is manufactured to the same specification as the original part, ensuring proper fit and function within the engine assembly. Sourced directly through Multiquip's authorized parts network, 8972454150 is the correct replacement for DCA-45USJ machines requiring engine piston service.
Key Features
- Genuine OEM Engine Specification — Manufactured to the same dimensional and metallurgical tolerances as the original piston, ensuring correct compression ratio and combustion chamber clearance for the 4JG1 engine.
- Drop-In Engine Fit — Engineered specifically for the 4JG1 engine configuration in the DCA-45USJ, allowing straightforward installation without machining or fitment adjustment.
- DCA-45USJ Compatibility — Confirmed fitment for the Multiquip DCA-45USJ ultra-silent generator series, so you can order with confidence.
- Restores Full Power Output — A worn or damaged piston leads to compression loss, reduced power output, and increased fuel consumption; replacing with a correctly specified OEM piston restores the generator to rated performance.
- Combustion Integrity — Proper piston-to-cylinder wall clearance is critical to safe, stable generator operation; an OEM piston maintains the sealing and heat-transfer characteristics the engine requires.
The piston is a core reciprocating component within the engine's cylinder, responsible for compressing the air-fuel mixture and transferring the force of combustion to the crankshaft via the connecting rod. In a generator application like the DCA-45USJ, maintaining correct piston condition is essential to sustaining stable voltage and frequency output under load. When a piston wears, cracks, or loses ring seal, symptoms typically include loss of compression, excessive oil consumption, misfiring, and a noticeable drop in generator output power.
For fitment questions or to confirm this is the correct part for your DCA-45USJ, contact the DHS Equipment parts team for assistance.
Part Details
| Part Number | 8972454150 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston DCA-45USJ 4JG1 |
Compatibility & Fitment
| Name | Model |
|---|---|
| DCA-45USJ | DCA-45USJ |
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.
