The Wacker Neuson Screw M10x25 DIN6921-A 8.8 A2K is a genuine OEM fastener designed for the PT6Y and PT6YT series trash pumps, including PT6Y-AU and PT6YT-IN variants. As a direct Wacker Neuson OEM part, the is manufactured to the exact DIN6921 flange head specification in grade 8.8 with an A2K coating, ensuring a verified drop-in replacement with no guesswork on spec or sizing. This screw is cross-referenced across multiple PT6Y build codes, covering both standard and EPA Tier 4 configurations. When you need to restore your pump to proper assembly spec, this is the part that matches what came off the machine.
Key Features
- DIN6921 Grade 8.8 Tensile Strength — Meets the exact torque and clamping load requirements for pump assembly, so fastened joints hold securely under vibration and operating stress.
- A2K Zinc-Flake Coating — Corrosion-resistant surface treatment protects the fastener in wet, muddy, and outdoor pump environments where bare hardware would corrode quickly.
- Flange Head Design for Direct Installation — The integrated flange distributes clamping load without a separate washer, matching the original mounting configuration exactly as assembled at the factory.
- Broad PT6Y Series Coverage — Confirmed fitment across PT6Y, PT6YT, PT6Y-AU, PT6YT-IN, and PT6Y EPA Tier 4 build codes, covering the full range of current and recent production pumps.
- Genuine Wacker Neuson OEM Part — Sourced directly from Wacker Neuson, this fastener carries the correct part number 5100064420 and meets the material and dimensional standards specified for these pump assemblies.
A flange head screw of this type is a structural fastener used to clamp and secure major components — such as housings, mounting brackets, or covers — within the pump assembly. The DIN6921 flange head design spreads the clamping force over a wider bearing surface, reducing the risk of joint loosening under continuous vibration from pump operation. A worn, stripped, or incorrect-grade fastener in this position can allow joint separation or misalignment, leading to leaks, component damage, or unsafe pump operation.
Part Details
| Part Number | 5100064420 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Screw M10x25 DIN6921-A 8.8 A2K |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PT6Y | PT6Y-SA | 5100070835 |
| PT6YT | PT6YT | 5100070966 |
| PUMP PT6Y-AU | PT6Y-AU | 5100076956 |
| PT6YT | PT6YT-IN | 5100077923 |
| PT6Y | PT6Y | 5100064168, 5100069617 |
| PT6Y | PT6Y EPA T4 | 5100073464 |
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.
Wacker Neuson