The Multiquip 0289611012 is a genuine OEM O Ring designed for the DCA-300SSK4 ultra-silent diesel generator equipped with the SAA6D125E-5 engine. As an authorized Multiquip OEM part, 0289611012 is manufactured to the same material and dimensional standards as the original, ensuring a correct seal every time. This O Ring is a direct replacement for DCA-300SSK4 units and is sourced directly through DHS Equipment for verified fitment confidence.
Key Features
- OEM-Grade Sealing Material — Manufactured to the original elastomer compound and cross-section specification required by the SAA6D125E-5 engine, maintaining correct compression and seal integrity under operating temperatures and pressures.
- Drop-In Replacement — Dimensionally identical to the original, seating into the same groove or port interface without modification to mating surfaces or hardware.
- Confirmed Fitment — Verified for the DCA-300SSK4 ultra-silent generator platform powered by the Komatsu SAA6D125E-5 diesel engine.
- Leak Prevention Under Load — A correctly seated O Ring maintains fluid or pressure containment within the engine circuit; a worn or deteriorated ring leads to fluid seepage, pressure loss, and potential engine damage during extended generator run cycles.
- Fuel and Fluid System Integrity — Proper sealing in diesel engine systems directly affects combustion consistency and emissions compliance; using the correct OEM O Ring avoids contamination of sensitive fuel or coolant circuits.
An O Ring is a precision-molded elastomer seal that sits within a machined groove to prevent fluid or gas from escaping between two mating surfaces. In diesel engine applications like the SAA6D125E-5 found in the DCA-300SSK4 generator, O Rings are used across fuel, coolant, and oil circuits where maintaining a leak-free boundary is critical to sustained output and engine longevity. When an O Ring degrades — through heat cycling, compression set, or chemical exposure — it loses its ability to seal, allowing leaks that can escalate into overheating, contamination, or unplanned downtime on the generator set.
For fitment questions or to confirm this part is correct for your DCA-300SSK4 serial number, contact the DHS Equipment parts team directly.
Part Details
| Part Number | 0289611012 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | O Ring SAA6D125E-5 DCA-300SSK4 |
Compatibility & Fitment
| Name | Model |
|---|---|
| DCA-300SSK4 | DCA-300SSK4 |
| SAA6D125E-5 | SAA6D125E-5 |
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.
