The Multiquip R519989 is a genuine OEM O-Ring EGR Valve designed for the DCA220SSJ ultra-silent diesel generator. As an authentic Multiquip OEM part, it is manufactured to the exact tolerances required for a proper seal at the EGR valve interface, ensuring the engine's exhaust gas recirculation system performs as intended. This part is confirmed for use on DCA220SSJ series equipment, making it a direct, no-guesswork replacement when servicing the EGR system on that unit.
Key Features
- OEM Sealing Material Grade — Manufactured to the exact compound and dimensional spec required for the EGR valve port, ensuring a gas-tight seal under operating temperatures and pressures.
- Drop-In Installation — Seats directly into the EGR valve groove on the DCA220SSJ, eliminating the need for trimming or improvised sealing solutions during service.
- Confirmed DCA220SSJ Fitment — Verified for use on the Multiquip DCA220SSJ ultra-silent diesel generator series.
- Protects EGR System Integrity — A correctly seated O-ring prevents exhaust gas leaks at the valve junction, maintaining proper recirculation flow and protecting surrounding engine components from heat and soot exposure.
- Emissions System Compliance — The EGR system is a regulated emissions component; replacing a failed or compressed O-ring with the correct OEM part helps keep the generator operating within its designed emissions parameters.
The EGR (Exhaust Gas Recirculation) valve O-ring forms the sealing interface between the EGR valve body and the engine, preventing hot exhaust gases from escaping at the connection point. When this O-ring hardens, cracks, or compresses over time, it can allow exhaust gas to leak past the seal, leading to rough engine operation, increased emissions, and potential heat damage to nearby components. Replacing it with the correct part restores a proper gas-tight seal and allows the EGR system to regulate combustion temperatures as designed.
Part Details
| Part Number | R519989 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | O-Ring EGR Valve |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA220SSJ |
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.
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