The Multiquip 1927421910 is a genuine OEM 0.5mm oversize piston designed for the DCA-15SPX ultra-silent diesel generator and V1902 engine applications. As a direct-from-manufacturer component, this oversize piston is precision-machined to the exact bore dimension required for a standard engine overbore reconditioning job, restoring compression and cylinder integrity to like-new performance. Sourced directly through Multiquip's OEM supply chain, part 1927421910 is the correct specification replacement for DCA-15SPX engines that have undergone cylinder boring. DHS Equipment stocks this genuine OEM part to keep your generator rebuild on spec and back in service fast.
Key Features
- OEM-Spec Oversize Tolerancing — Machined to exact 0.5mm oversize dimensions, ensuring correct compression ratio and ring land geometry after a standard cylinder overbore on the V1902 engine.
- Drop-In Engine Rebuild Fit — Engineered to pair with the V1902 cylinder bore, piston rings, and connecting rod without custom machining or additional fitting beyond the overbore procedure.
- Confirmed Fitment for DCA-15SPX — Verified for use in the Multiquip DCA-15SPX ultra-silent diesel generator equipped with the V1902 engine platform.
- Compression Restoration — A worn or scored piston causes loss of cylinder compression, excessive oil consumption, and hard starting; replacing it with the correct oversize unit fully restores engine output and sealing.
- Genuine OEM Part — Supplied to Multiquip's original manufacturing specification, ensuring material grade, ring groove dimensions, and wrist pin bore align exactly with V1902 engine design requirements.
A piston is the reciprocating component inside the engine cylinder that converts combustion pressure into mechanical force, driving the crankshaft to produce power. In a diesel generator like the DCA-15SPX, maintaining correct piston-to-wall clearance is critical for efficient compression and clean combustion. When a cylinder is bored to remove scoring or wear, a standard-size piston will no longer seal correctly — an oversize piston such as this 0.5mm unit is required to restore the proper clearance, ring seal, and compression pressure that keep the generator running at rated output.
Part Details
| Part Number | 1927421910 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston 0.5mm Oversize DCA15SPX V1902 |
Compatibility & Fitment
| Name | Model |
|---|---|
| DCA-15SPX | DCA-15SPX |
| V1902 | V1902 |
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.
