The Wacker Neuson Diaphragm is a genuine OEM component designed for the RCP-25 and RCP-32 series rebar cutters, including 115V, 120V, and 230V variants. Sourced directly from Wacker Neuson, this diaphragm matches the original specification installed at the factory, ensuring a seamless drop-in fit with no guesswork. Compatible across six models — including the RCP-25/230, RCP-25/120, RCP-25/115, RCP-32/230, RCP-32/120, and RCP-32/115 — this is the correct part whether you're working with 25mm or 32mm cutting capacity machines. Keeping your rebar cutter operating at full hydraulic efficiency starts with the right diaphragm, and part number is exactly that.
Key Features
- OEM-Grade Flex and Seal Integrity — Manufactured to Wacker Neuson's original material and thickness specification, maintaining the correct pressure response and seal performance within the hydraulic circuit.
- Direct Drop-In Replacement — Matches the original mounting geometry and port dimensions, allowing straightforward installation without modification to existing hardware or housing.
- Broad RCP Series Coverage — Fits six RCP-25 and RCP-32 models across 115V, 120V, and 230V configurations, making it the go-to diaphragm for mixed fleets or multi-voltage job sites.
- Consistent Cutting Force Delivery — A properly functioning diaphragm maintains stable hydraulic pressure transfer, enabling clean, full-force cuts through rebar at the tool's rated capacity. A worn or cracked diaphragm causes pressure loss and incomplete cuts.
- Fuel System Integrity and Operator Safety — As a critical component in the hydraulic actuation path, a compromised diaphragm can lead to fluid leakage and unpredictable tool behavior — replacing it promptly preserves safe, controlled operation.
The diaphragm in an electric rebar cutter serves as a flexible pressure membrane within the hydraulic actuation system, transmitting force from the pump to the cutting blade mechanism. It flexes under pressure to drive the cutting cycle and returns to its resting position after each stroke. When the diaphragm cracks, stiffens, or loses elasticity — whether from age, hydraulic fluid exposure, or heavy use — pressure transfer becomes inconsistent, leading to weak cuts, stalling, or fluid bypass that can damage surrounding components.
Part Details
| Part Number | 5000216951 |
|---|---|
| Old Part Number | 0216951 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Diaphragm |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Rebar Cutter RCP-25/230 | RCP-25/230 | 5000610203 |
| RCP-25/120 25MM CUTTING/BENDNG | RCP-25/120 | 5000610204 |
| Rebar Cutter RCP-32/230 | RCP-32/230 | 5000610205 |
| RCP-32/120 32MM CUTTING | RCP-32/120 | 5000610206 |
| Rebar Cutter RCP-25/115 GB | RCP-25/115 | 5000610216 |
| Rebar Cutter RCP-32/115 GB | RCP-32/115 | 5000610217 |
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.
