The Wacker Neuson Fuel Tank Cap is a genuine OEM component designed for LTS4K, LTS4Y, LTS7K, LTS8K, and LTS8L series light towers. As a direct factory replacement, this cap delivers the exact fit and seal integrity your machine was built with, covering both 50 Hz and 60 Hz configurations across trailer and skid-mounted models. Whether you're servicing a Metal Halide or LED unit, part number matches the original specification precisely. Keep your fuel system properly sealed and your tower running at full operational capacity with this verified OEM replacement.
Key Features
- OEM-Grade Seal Integrity — Manufactured to Wacker Neuson's original material and thread specification, ensuring a vapor-tight closure that prevents fuel evaporation and contamination ingress.
- Direct-Thread Replacement — Matches the original filler neck thread pattern exactly, allowing straightforward hand-installation with no adapters or modifications to the tank opening.
- Broad LTS Series Coverage — Fits LTS4K, LTS4Y, LTS7K, LTS8K, and LTS8L light towers across multiple configuration variants including 50 Hz, 60 Hz, trailer, and skid-mount models.
- Protects Fuel System Cleanliness — A properly sealing cap keeps debris, moisture, and contaminants out of the fuel tank, protecting injectors and the fuel delivery system downstream.
- Fuel Safety Compliance — A secure, correctly rated cap is essential on portable light towers to prevent fuel spillage during transport and operation, reducing fire and spill hazard on the worksite.
The fuel tank cap seals the filler opening on the light tower's fuel tank, maintaining a closed system during both operation and transport. A functioning cap prevents fuel vapors from escaping, blocks moisture and debris from entering the tank, and keeps fuel delivery consistent to the engine. When a cap is cracked, missing its seal, or cross-threaded, it can allow contamination into the tank or result in fuel loss — leading to poor engine performance or a no-start condition on the job.
Part Details
| Part Number | 5100040864 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fuel Tank Cap |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| LTS7K - 60 HZ, Metal Halide, Trailer | LTS7K | 5100042185, 5100041967, 5100041968 |
| LTS8L | LTS8L | 5100041969, 5100042180, 5100042186 |
| LTS8K | LTS8K | 5100042181, 5100042182, 5100042187 |
| LTS4K - 50 HZ, LED, Trailer | LTS4K | 5100042183, 5100042184, 5100042189, 5100062237, 5100062239, 5100064636 |
| LTS4Y | LTS4Y | 5100062238 |
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.
