The Wacker Neuson Glow Plug is a genuine OEM component designed for G25 and G12 mobile generators and the LT4K, LTP4K, LT4Z, LTP4Z, LTW4Z, LTW6Z, LT4SK, LTP4SK, LT4SZ, LTP4SZ, and LTWP series light towers. As a direct factory replacement, part matches the original specification and installs without modification to the engine cylinder head. Wacker Neuson genuine OEM parts are manufactured to the same standards as the components fitted at the factory, ensuring the engine starts reliably and performs as intended across all rated operating conditions.
Key Features
- Genuine OEM Heat Output Match — Manufactured to the exact resistance and temperature specification of the original glow plug, ensuring proper pre-heat of the combustion chamber for cold and cold-weather starts.
- Direct Cylinder Head Fit — Threads directly into the original port with no rethreading or adapter required, maintaining proper torque retention and combustion seal.
- Broad Fitment Coverage — Compatible with G12 and G25 skid-mounted mobile generators and a wide range of LT4K, LT4Z, LTW, LTP, and LT4S series light towers.
- Cold-Start Reliability — A correctly functioning glow plug brings the prechamber or combustion chamber to ignition temperature quickly, supporting fast, consistent diesel engine starts even in cold-weather configurations.
- Fuel System Safety — A failed or degraded glow plug can cause hard starts, raw fuel introduction into the cylinder, and carbon buildup — replacing with a genuine OEM unit helps maintain correct combustion and reduces risk of engine damage.
A glow plug is a small but critical electrical heating element threaded into each cylinder of a diesel engine. Before the starter cranks the engine, the glow plugs heat the air inside the combustion chamber to the temperature needed to ignite diesel fuel without a spark. Without a functioning glow plug, a diesel engine will struggle to start in cold conditions or may fail to start altogether. Over time, glow plugs degrade due to repeated heat cycling, and a faulty plug typically shows up as hard starting, excessive white smoke on startup, or a rough-running engine until it reaches operating temperature.
Part Details
| Part Number | 5000089843 |
|---|---|
| Old Part Number | 0089843 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Glow Plug |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Skid-mounted Mobile Generator | G25 | 5000009258, 5000008228, 5000009462, 5000009476 |
| Mobile Generator, Skid Mounted | G12 | 5000008227 |
| Light Tower | LT4K | 5000007620 |
| Light Tower | LTP4K | 5000007621 |
| Light Tower | LT4Z | 5000007635, 5000007689, 5000009080, 5000009226 |
| Light Tower | LTP4Z | 5000007636, 5000008063, 5000009227 |
| Light Tower | LTW4Z | 5000008064 |
| Light Tower | LTWP4Z | 5000008065 |
| Light Tower | LTW4K | 5000008066 |
| Light Tower | LTWP4K | 5000008067 |
| Light Tower | LTW6Z | 5000008068 |
| Light Tower | LT4SK | 5000007622 |
| Light Tower | LTP4SK | 5000007623 |
| Light Tower | LT4SZ | 5000007637 |
| Light Tower | LTP4SZ | 5000007638 |
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.
