The Wacker Neuson is a genuine OEM Lock Washer 5/16 designed for PDT2, PDT3, PDI2, and PDI3 series diaphragm trash pumps, as well as CRT36 and CRT46 series ride-on concrete trowels. As a direct OEM replacement sourced through the Wacker Neuson parts network, part is manufactured to the same specifications as the original hardware installed at the factory. This lock washer fits a broad range of models across two distinct machine families, making it a practical stocking item for operators and service technicians running mixed fleets.
Key Features
- Genuine OEM Hardware Spec: — Manufactured to the exact thread engagement and locking-tension spec of the original, maintaining proper clamp load across fastened joints.
- Broad Cross-Family Fitment: — Confirmed fit across PDT2A, PDT2B, PDT3A, PDI2, PDI2A, PDI3, PDI3A diaphragm trash pump series and CRT36ASO, CRT36ASN, CRT46KHN, CRT46KHO, CRT46ASO ride-on trowel models.
- Drop-In Installation: — Matches the original 5/16 fastener diameter and locking profile, seating correctly without rework or shimming.
- Prevents Fastener Loosening Under Vibration: — Lock washers in pump and trowel assemblies resist rotational loosening caused by continuous machine vibration, keeping critical fastened joints torqued and secure.
- Supports Scheduled Maintenance: — Replacing lock washers during service intervals restores full locking effectiveness — a worn or flattened washer no longer exerts the tension needed to hold torque.
A lock washer is a hardened fastening component installed beneath a bolt or nut to prevent the fastener from backing out under vibration or cyclical load. As the nut is tightened, the washer's spring tension or serrated edges bite into both the fastener and the mating surface, creating resistance against rotational loosening. In high-vibration equipment like diaphragm pumps and ride-on trowels, even a small amount of fastener movement can lead to joint failure, fluid leaks, or structural loosening. A flattened or fatigued lock washer no longer exerts meaningful resistance and should be replaced any time a fastener joint is opened during service.
Part Details
| Part Number | 5000072699 |
|---|---|
| Old Part Number | 0072699 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Washer 5/16 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 50mm/2in Diaphragm Trash Pump | PDT2A | 5000007610, 5000007611 |
| 75mm/3in Diaphragm Trash Pump | PDT3A | 5000007614, 5000007615, 5000007616 |
| 50mm/2in Inline Diaphragm Tras h Pump | PDI2A | 5000007624, 5000007625 |
| 75mm/3in Inline Diaphragm Tras h Pump | PDI3A | 5000007628, 5000007629, 5000009407 |
| 50mm/2in Diaphragm Trash Pump | PDT2 | 5000009494, 5000007633 |
| 75mm/3in Diaphragm Trash Pumps | PDT3 | 5000009495, 5000007619 |
| CRT46KHN | CRT46KHN | 5000007515 |
| CRT46KHO | CRT46KHO | 5000007641 |
| 915mm/36in Ride-On Trowel, ove rlapping | CRT36ASO | 5000007512 |
| 915mm/36in Ride-On Trowel, non #NAME? | CRT36ASN | 5000007513 |
| CRT46ASO | CRT46ASO | 5000007514 |
| 50mm/2in Diaphragm Trash Pump | PDI2 | 5000009489 |
| 50mm/2in Diaphragm Trash Pump | PDT2B | 5000007612, 5000007613 |
| 75mm/3in Diaphragm Trash Pump | PDI3 | 5000009491, 5000009492 |
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.
