The Multiquip 1642321110 Piston is a genuine OEM component designed for the DAW-500S diesel arc welder. Sourced directly from Multiquip, this piston is manufactured to the same specifications as the original part installed at the factory, ensuring a direct, accurate replacement. If you're servicing a DAW-500S welder and need a dependable engine piston, this is the correct part for the job.
Key Features
- OEM-Grade Engine Tolerance — Manufactured to the precise bore diameter and ring groove dimensions required for proper combustion and compression in the DAW-500S engine.
- Direct Engine Replacement — Drops into the existing cylinder bore of the DAW-500S without machining or modification to the engine block.
- DAW-500S Fitment — Confirmed fit for the Multiquip DAW-500S diesel arc welder series.
- Maintains Compression and Output — A correctly fitted piston ensures consistent combustion pressure, directly supporting stable arc welding output and engine power delivery.
- Combustion Safety Integrity — A worn or damaged piston can cause blow-by, oil contamination, and loss of compression — replacing with a genuine OEM part restores proper combustion sealing and safe engine operation.
The piston is a core reciprocating component inside the engine cylinder. It transfers the force of combustion to the crankshaft via the connecting rod, which in turn drives the alternator to produce welding and generator power. When a piston wears, cracks, or loses its ring seal, the engine suffers a drop in compression, increased oil consumption, and unstable power output — symptoms that can compromise weld quality and lead to broader engine damage if left unaddressed. Replacing the piston with a genuine OEM part restores proper combustion dynamics and protects the surrounding engine components.
For fitment questions or to confirm this part is correct for your specific DAW-500S configuration, contact the DHS Equipment team before ordering.
Part Details
| Part Number | 1642321110 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DAW-500S |
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.
