The Wacker Neuson O-Ring is a genuine OEM O-Ring designed for the BL744ch, BL744h, BL742h, BL744c, BL744 EX, and BL742 EX Backhoe Loader series. As a direct OEM component, the is manufactured to the exact material composition and dimensional tolerances specified for these machines, ensuring a proper seal every time. This part covers the full range of BL7-series Backhoe Loaders, making it the correct choice whether you are servicing a BL744ch or a BL742 EX.
Key Features
- OEM-Spec Sealing Material — Manufactured from the same compound and durometer rating as the original, so the O-Ring seats and compresses exactly as the system was engineered to require.
- Drop-In Dimensional Match — Sized to the precise inner diameter, outer diameter, and cross-section of the original, so it drops into the groove without stretching or shimming.
- Broad BL7-Series Coverage — A single part number covers BL744ch, BL744h, BL742h, BL744c, BL744 EX, and BL742 EX Backhoe Loaders — confirm your model before ordering.
- Leak-Free System Pressure — A correctly installed O-Ring maintains fluid or air pressure within the circuit; a worn or flattened ring allows seepage that degrades hydraulic response and can escalate into a costlier repair.
- Genuine Wacker Neuson OEM Part — Sourced directly through the Wacker Neuson OEM supply chain, so you receive the same component installed at the factory.
An O-Ring is a circular elastomeric seal fitted into a machined groove between two mating surfaces or around a shaft or port. Its job is to create a pressure-tight barrier that prevents hydraulic fluid, oil, or air from escaping the circuit. When an O-Ring ages, it can harden, crack, or take a permanent set — losing its ability to spring back and maintain contact — which allows fluid to bypass the seal and leads to pressure loss, external leaks, and potential contamination of surrounding components. Replacing a degraded O-Ring promptly with the correct OEM part restores circuit integrity and protects the hardware on either side of the seal.
Part Details
| Part Number | 5100032600 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BL744ch Backhoe Loader | BL744ch | 5100031800 |
| BL744h Backhoe Loader | BL744h | 5100031801 |
| BL742h Backhoe Loader | BL742h | 5100031802 |
| BL744c Backhoe Loader | BL744c EX | 5100031803 |
| BL744 EX Backhoe Loader | BL744 EX | 5100031804 |
| Backhoe Loader | BL742 EX | 5100031805 |
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.
