The Multiquip 1685321050 is a genuine OEM Piston Ring Assembly Standard designed for the DLW300ES, DAC7000SS, DAC7000SSA, and DAC7000SSW series welders and diesel-powered generators. As a direct OEM replacement, this assembly is manufactured to the same tolerances and material specifications as the original component, ensuring a correct drop-in fit with no guesswork. Whether you are rebuilding an engine on a light welder or restoring compression to a super-silent generator, this is the part Multiquip specifies for the job. Sourced directly through DHS Equipment, you can order with confidence knowing you are getting the exact part your machine calls for.
Key Features
- OEM-Grade Ring Tolerancing — Manufactured to precise dimensional and material specifications to deliver correct compression seal and oil control from the first startup.
- Standard Bore Sizing — This standard (STD) assembly is sized for original-bore cylinders, making it the correct choice for engines that have not been bored or sleeved.
- Broad Fitment Coverage — Compatible with DLW300ES, DAC7000SS, DAC7000SSA, and DAC7000SSW series equipment, covering both light welder and ultra-silent generator applications.
- Restored Engine Compression — Worn or broken piston rings cause loss of compression, increased oil consumption, and hard starting; replacing this assembly restores proper cylinder pressure and engine output.
- Fuel System and Emissions Integrity — Correct ring sealing prevents unburned fuel and oil from contaminating the combustion chamber, maintaining clean exhaust output on diesel-powered equipment.
Piston rings form a dynamic seal between the piston and the cylinder wall, serving two critical roles: maintaining compression pressure within the combustion chamber and controlling the thin film of oil that lubricates the cylinder bore. When rings wear, crack, or lose tension, compression drops, oil burns into the combustion chamber, and the engine produces less power while consuming more fuel. On generator and welder engines that run under sustained load, a failed ring set can quickly escalate into broader engine damage. Replacing the piston ring assembly at the correct service interval — or at the first sign of oil consumption or compression loss — keeps the engine running at full rated output and protects the cylinder bore from further wear.
Part Details
| Part Number | 1685321050 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston Ring Assembly Standard |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW300ES |
| Welders | DLW300ESA |
| Welders | DLW300ESA1 |
| Diesel Powered Generators | DAC7000SSA |
| Diesel Powered Generators | DAC7000SSW |
| Diesel Powered Generators | DAC7000SS |
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.
