The Wacker Neuson Radiator Cap is a genuine OEM component designed for the G25, G50, G70, and G85 portable generator series, as well as the LTW6K, LTW8K, LTW20Z1, and LTW20Z3 light tower series. As a direct OEM replacement, the meets the original design and pressure specifications set by Wacker Neuson, ensuring the cooling system performs exactly as intended across all listed configurations. This cap fits a broad range of skid-mounted, cold weather, custom, and extended run tank variants within these families. Confirm your model number before ordering to ensure the correct fitment for your specific unit.
Key Features
- OEM Pressure Rating: — Manufactured to the original pressure specification for the cooling system, maintaining the correct pressure differential that prevents coolant loss and overheating.
- Drop-In Fitment: — Engineered to match the original radiator filler neck thread and sealing surface, so installation is straightforward with no rework to the cooling system.
- Broad Model Coverage: — Fits G25, G50, G70, and G85 generator series and LTW6K, LTW8K, LTW20Z1, and LTW20Z3 light tower series across standard, cold weather, custom, and extended run configurations.
- Coolant System Integrity: — A correctly sealed radiator cap holds system pressure and allows the overflow recovery cycle to function properly, protecting the engine from thermal damage during extended operation.
- Cooling System Safety: — A worn or faulty radiator cap that cannot hold rated pressure risks coolant boil-over and scalding during servicing; using the correct OEM cap maintains safe operating conditions.
The radiator cap seals the cooling system and regulates internal pressure by holding coolant at a set pressure level, which raises the boiling point of the coolant and allows the engine to run at its designed operating temperature. When pressure exceeds the cap's rating, it opens to release coolant into the overflow reservoir, then draws it back in as the system cools — a cycle that protects the engine and keeps coolant consumption in check. A cap that has lost its ability to hold pressure will allow coolant to boil off prematurely, leading to overheating, potential engine damage, and increased maintenance costs on generators and light towers that often run for extended, unattended periods.
Part Details
| Part Number | 5000163200 |
|---|---|
| Old Part Number | 0163200 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Radiator Cap |
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, 5000620708, 5200014463, 5200014465, 5200008344, 5200008342, 5200008343, 5200008339, 5200008341, 5200008340, 5100025814, 5100025838 |
| Skid-mounted Mobile Generator | G50 | 5000009467, 5000009366, 5000620001, 5200001062, 5200001063, 5200006878, 5200001317, 5200001060, 5200001061, 5000620707, 5000620710, 5000620964, 5000620965, 5000620966, 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, 5200014461, 5200014460, 5200014462, 5000621005, 5100045084, 5000008228, 5100041580, 5100041592, 5000620706, 5100022834, 5100041581, 5100041582, 5100041583, 5100045541, 5100045542, 5100050326, 5100042507, 5100042510, 5100042512, 5100042509, 5100025836, 5100042508 |
| Mobile Generator | G85 | 5000009459, 5000620003, 5000009369 |
| LTW20Z-1, LIGHT TOWER 60Hz, ISUZU, CUSTOM, T4i | LTW20Z1 | 5000620842, 5000620375, 5200004205, 5200004096, 5200023191, 5200024872 |
| LTW6K Light Tower, Standard T4 | LTW6K | 5000620372, 5000620840, 5200004094, 5200024870 |
| LTW8K Light Tower, Standard T4 | LTW8K | 5000620374, 5000620841, 5200004204, 5200004095, 5200023190, 5200024871 |
| LTW20Z-3, LIGHT TOWER 60HZ, ISUZU TIER 4i | LTW20Z3 | 5000620376, 5000620843, 5200003583, 5200004097, 5200023192 |
| LTW20Z3-V S LIGHT TOWER, COLD WEATHER, T4i | LTW20Z3-V S | 5200018566, 5200018558, 5200018562, 5200023196, 5100015094, 5100022126 |
| LTW20Z1-V S LIGHT TOWER, COLD WEATHER, T4i | LTW20Z1-V S | 5200018565, 5200018557, 5200018561, 5200024875, 5200023195, 5100015093, 5100022125 |
| LTW6K-V S Light Tower, Cold Weather T4 | LTW6K-V S | 5200018563, 5200018555, 5200018559, 5200024873 |
| LTW8K-V S Light Tower, Cold Weather T4 | LTW8K-V S | 5200018564, 5200018556, 5200023194, 5200018560, 5200024874, 5100015095, 5100022084 |
| Light Tower | LTW20Z3-V | 5200012881, 5200012885, 5200012867, 5200022694 |
| Light Tower | LTW6K-V | 5200012864, 5200012868, 5200012882 |
| Light Tower | LTW8K-V | 5200012869, 5200012883, 5200012865 |
| Light Tower | LTW20Z1-V | 5200012880, 5200012884, 5200012866 |
| Mobile Generator, Skid Mounted | G12 | 5000008227 |
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.
