The Wacker Neuson Overflow Bottle 2Qt is a genuine OEM component designed for the G25, G50, G70, and G85 series skid-mounted mobile generators. As a direct OEM replacement, this part is produced to the same specifications as the original, ensuring a correct fit within the engine cooling system. It is compatible across a wide range of G-series generator configurations, including standard, cold weather, extended run, and custom skid-mounted variants. Confirm your model and machine number before ordering to ensure fitment accuracy.
Key Features
- Correct Reservoir Capacity — 2-quart volume matches the original coolant overflow specification, maintaining proper coolant reserve levels across operating conditions.
- Genuine OEM Construction — Manufactured to the same material and dimensional standards as the original bottle, ensuring a consistent seal and secure mounting at the factory-designated location.
- Broad G-Series Compatibility — Fits G25, G50, G70, and G85 mobile generator models across standard, cold weather, extended run, and custom configurations.
- Cooling System Integrity — A properly functioning overflow bottle keeps the coolant circuit balanced; a cracked or missing bottle can cause coolant loss and lead to engine overheating under load.
- Direct OEM Sourcing — Sourced directly from Wacker Neuson, so the part number, mounting points, and hose connection match the original without adaptation.
The overflow bottle, also called a coolant expansion or surge tank, is a small reservoir connected to the engine's cooling system. It captures coolant that expands as the engine heats up and returns it to the radiator as the engine cools down, keeping the system topped off and preventing air from entering the coolant circuit. When the bottle cracks, leaks, or loses its cap seal, the cooling system can no longer maintain proper pressure and fluid level, increasing the risk of overheating and potential engine damage during extended generator operation.
Part Details
| Part Number | 5000155240 |
|---|---|
| Old Part Number | 0155240 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Overflow Bottle 2Qt |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Skid-mounted Mobile Generator, Custom | G70 | 5000620352, 5000620350, 5000620351, 5000009367, 5000009468, 5000620002, 5000620648, 5000620647, 5000620711, 5000620646, 5200001318, 5200003220, 5200006879, 5200014464, 5000009260, 5000620708, 5200014463, 5200014465, 5200008344, 5200008342, 5200008343, 5200008339, 5200008341, 5200008340, 5000009464, 5000009478, 5100025814, 5100025838 |
| Skid-mounted Mobile Generator | G50 | 5000009467, 5000009366, 5000620001, 5200001062, 5200001063, 5200006878, 5200001317, 5200001060, 5200001061, 5000009259, 5000620707, 5000620710, 5000620964, 5000620965, 5000620966, 5000009463, 5000009477, 5100025812, 5100026954, 5100029210, 5100026955, 5100026956 |
| Mobile Generator, Custom | G25 | 5000620346, 5000620344, 5000620345, 5000620642, 5000009466, 5000620004, 5000620640, 5000620709, 5000620641, 5000009368, 5200005557, 5200003991, 5000620931, 5200001316, 5200009372, 5200009376, 5200009370, 5200009371, 5200009373, 5200009377, 5200014461, 5000009258, 5200009375, 5200009374, 5200014460, 5200014462, 5000621005, 5100041584, 5200022587, 5100045084, 5100041580, 5100041592, 5000620706, 5100017591, 5100022834, 5100041581, 5100041582, 5100041583, 5100045541, 5100045542, 5100050326, 5000009462, 5000009476, 5100042507, 5100042510, 5100042512, 5100042509, 5100025836, 5100042508 |
| Mobile Generator | G85 | 5000009459, 5000620003, 5000009369, 5000009310, 5000009305, 5000009465 |
| Mobile Generator | G20 | 5200016628, 5200022625 |
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.
