Wacker Neuson 5100063350 Cap, Oil Fill

The Wacker Neuson Cap, Oil Fill is a genuine OEM component designed for the PTS4V series pumps. As a factory-sourced part, it carries the same specifications as the original component fitted at the time of manufacture, ensuring a direct match for your machine. This cap is confirmed compatible across multiple PTS4V configurations, making it a straightforward replacement when your existing cap is damaged, lost, or worn. Ordering by part number ensures you receive the exact piece your pump was built with.

Key Features

• Genuine OEM Sealing Integrity — Factory-sourced construction delivers the thread pitch and material grade needed to maintain a reliable oil fill seal under pump operating conditions.
• Drop-In Replacement — Threads directly onto the existing oil fill port with no modification, matching the original cap's dimensions and fitment interface exactly.
• PTS4V Series Compatibility — Verified fitment across PTS4V pump configurations, covering multiple build variants within that series.
• Protects Engine Oil from Contamination — A properly sealed oil fill cap keeps debris, dust, and moisture out of the crankcase, preserving oil condition and protecting internal engine components.
• Prevents Oil Loss During Operation — A failed or missing cap allows oil to escape under vibration and heat, potentially leading to low-oil conditions and accelerated engine wear.

The oil fill cap seals the engine's oil fill port, keeping the crankcase closed during operation and service. It prevents contaminants such as dust and water from entering the oil supply, which is critical for maintaining lubrication quality and protecting internal engine parts. When a cap is cracked, missing its seal, or lost entirely, the engine becomes vulnerable to oil contamination and loss — both of which can cause premature wear or engine damage if left unaddressed.

Part Details

Compatibility & Fitment

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.