Wacker Neuson 5000192409 Grease Zerks (Cylinder Ends)

The Wacker Neuson Grease Zerks (Cylinder Ends) are genuine OEM fittings designed for Wacker Neuson Hydraulic Thumb attachments. Sourced directly from Wacker Neuson, these zerks meet the exact specifications of the originals — ensuring correct grease flow and thread engagement at the cylinder ends every time. Genuine OEM designation means these are the same components installed during factory assembly, so you can install them with confidence on your Hydraulic Thumb.

Key Features

• Genuine OEM Thread Spec — Manufactured to Wacker Neuson's exact thread pitch and seat angle, ensuring a leak-free grease seal at the cylinder end fitting.
• Direct Drop-In Replacement — Threads directly into the cylinder end ports of the Hydraulic Thumb with no reworking of the receiver bore required.
• Confirmed Hydraulic Thumb Fitment — Verified for Wacker Neuson Hydraulic Thumb models 5000176273, 5000176274, and 5000176407.
• Protects Cylinder Pin and Bore Life — Properly functioning grease zerks deliver lubrication to critical pivot points; worn or blocked fittings starve pins of grease and accelerate wear on cylinder ends.
• Corrosion-Resistant Construction — Built to withstand the grease pressures and outdoor exposure common in excavator attachment service.

Grease zerks — also called grease fittings or nipples — are the small threaded ports that accept a grease gun coupler, allowing lubricant to be pumped directly into a pivot joint or bearing surface. On a hydraulic thumb, the cylinder end zerks service the pins and bushings at the ram attachment points, which are under constant load and motion during gripping and digging operations. When a zerk becomes clogged, damaged, or stripped, grease can no longer reach those surfaces, leading to metal-on-metal contact, accelerated pin wear, and eventually costly cylinder end repairs.

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.

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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.

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