The Multiquip RE549081 Surge Tank is a genuine OEM component designed for DCA150SSJU4F, DCA180SSJU4F, DCA220SSJU4F2, and DCA300SSJU4F series super-silent diesel generators. As a direct OEM replacement, this surge tank is sourced from Multiquip and built to the exact specifications required by these units. Confirmed fitment covers the full DCA super-silent generator lineup including DCA150SSJU4F, DCA150SSJU4F2, DCA150SSJU4F3, DCA180SSJU4F, DCA180SSJU4F3, DCA220SSJU4F2, DCA300SSJU4F2, DCA300SSJU4F3, and DCA300SSJU4F3PD models. If your existing surge tank is cracked, leaking, or degraded, RE549081 restores proper cooling system function and keeps your generator running at rated output.
Key Features
- Genuine OEM Construction — Manufactured to Multiquip's original material and dimensional specifications, ensuring correct wall thickness and fitment for the DCA super-silent generator cooling circuit.
- Direct Drop-In Replacement — Mounts to the existing coolant circuit connections on compatible DCA series generators without modification to hose routing or mounting hardware.
- Broad DCA Series Compatibility — Fits DCA150SSJU4F, DCA180SSJU4F, DCA220SSJU4F2, DCA300SSJU4F2, DCA300SSJU4F3, and DCA300SSJU4F3PD models across both 60Hz and standard configurations.
- Maintains Cooling System Pressure Integrity — A correctly functioning surge tank stabilizes coolant expansion and contraction during operation, preventing air pockets and protecting the engine from thermal overload.
- Leak Prevention — Replaces tanks that have developed cracks or seepage, which can cause coolant loss, overheating, and unplanned generator shutdowns on critical power applications.
The surge tank — sometimes called a coolant expansion or overflow tank — manages the thermal expansion of engine coolant as the generator heats up and cools down during operation. As coolant temperature rises, excess fluid is pushed into the surge tank; as the engine cools, that fluid is drawn back into the system, keeping the cooling circuit properly filled at all times. When the surge tank cracks or degrades, coolant can escape the closed system, leading to low coolant levels, overheating warnings, and potential engine damage if left unaddressed.
Part Details
| Part Number | RE549081 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Surge Tank |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA150SSJU4F |
| Diesel Powered Generators | DCA150SSJU4F3 |
| Diesel Powered Generators | DCA180SSJU4F3 |
| Diesel Powered Generators | DCA300SSJU4F2 |
| Diesel Powered Generators | DCA150SSJU4F2 |
| Diesel Powered Generators | DCA180SSJU4F |
| Diesel Powered Generators | DCA220SSJU4F2 |
| Diesel Powered Generators | DCA300SSJU4F3PD |
| Diesel Powered Generators | DCA180SSJU4F (60HZ) |
| Diesel Powered Generators | DCA220SSJU4F2 (60Hz) |
| Diesel Powered Generators | DCA300SSJU4F2 60Hz |
| Diesel Powered Generators | DCA300SSJU4F3 60Hz |
| Diesel Powered Generators | DCA300SSJU4F3PD 60Hz |
| Diesel Powered Generators | DCA150SSJU4F3 (60HZ) |
| Diesel Powered Generators | DCA180SSJU4F3 (60HZ) |
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.
