The Wacker Neuson Lock Washer M20 Mech Zp is a genuine OEM fastening component designed for the G-series portable and skid-mounted mobile generator lineup, including G25, G50, G70, G85, G110, G120, G125, and G160 models. As a genuine OEM part, the is manufactured to the exact material and dimensional standards specified for these generators, ensuring correct seating and holding force at the M20 fastener location. This washer is stocked across multiple G-series configurations — skid-mounted, cold weather, and custom builds — making it a widely applicable service item for fleet maintenance programs.
Key Features
- OEM-Spec Zinc-Plated Finish: — The mechanical zinc plating (Zp) provides corrosion resistance suited to the operating environment of mobile and skid-mounted generator installations, maintaining surface integrity at the fastener interface.
- Correct M20 Sizing: — Sized specifically for M20 fastener assemblies, this lock washer seats flush without shimming or adjustment, maintaining proper clamp load on generator structural and mounting hardware.
- Broad G-Series Compatibility: — Confirmed fitment across G25, G50, G70, G85, G110, G120, G125, and G160 generator families, covering skid-mounted, cold weather, and custom mobile generator configurations.
- Mechanical Locking Action: — The serrated or toothed profile bites into mating surfaces under torque, resisting fastener loosening caused by generator vibration during continuous operation.
- Direct OEM Sourcing: — Supplied as a genuine Wacker Neuson part under part number 5000154533, eliminating fit uncertainty when servicing multiple generator variants across a fleet.
A lock washer is a small but critical fastening component placed beneath a nut or bolt head to prevent the fastener from backing out due to vibration or cyclical load. On mobile generators like the Wacker Neuson G-series, constant engine vibration places ongoing stress on structural and panel fasteners — a lock washer maintains the clamping force that keeps those connections secure. When a lock washer is missing, damaged, or substituted with an incorrect size, fasteners can gradually loosen, leading to structural movement, electrical connection issues, or component damage that far exceeds the cost of the washer itself.
Part Details
| Part Number | 5000154533 |
|---|---|
| Old Part Number | 0154533 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Washer M20 Mech Zp |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Mobile Generator (Cold Weather ) | G120 | 5000620291, 5000620290, 5000620292 |
| Skid-mounted Mobile Generator | G160 | 5000009306, 5000620069, 5000620070 |
| Skid-mounted Mobile Generator | G25 | 5000009258, 5000009462, 5000009476 |
| Skid-mounted Mobile Generator | G50 | 5000009259, 5000009463, 5000009477 |
| Skid-mounted Mobile Generator | G70 | 5000009260, 5000009464, 5000009478 |
| Mobile Generator (custom) | G125 | 5000620067, 5000620068, 5000009261, 5000008233 |
| Skid-mounted Mobile Generator | G85 | 5000009310, 5000009305, 5000009465 |
| Mobile Generator Skid Mounted | G110 | 5000008232 |
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.
