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 part, the is manufactured to the same standards as the original component installed at the factory, ensuring a correct, verified fit within the sealing system. Cross-reference your model against the confirmed fitment list before ordering to make sure this is the right part for your machine. Keep a spare on hand — O-Rings are a common service item on hydraulic and fluid systems across the BL-series Backhoe Loader lineup.
Key Features
- OEM-Grade Sealing Material — Manufactured to exact compound and durometer specifications, ensuring the ring compresses and seals correctly under operating pressures found in Wacker Neuson Backhoe Loader systems.
- Drop-In Installation — Dimensionally identical to the original 5100032942, seating cleanly into the existing groove without trimming, stretching, or modification to surrounding components.
- Broad BL-Series Coverage — Confirmed fitment across the BL742h, BL744h, BL744ch, BL744c, BL744 EX, and BL742 EX Backhoe Loader models, covering a wide range of the BL-series platform.
- Leak Prevention — A correctly seated O-Ring maintains a fluid-tight seal in hydraulic or fluid circuits; a worn or damaged ring leads to leaks, pressure loss, and potential damage to surrounding components.
- Genuine Wacker Neuson Part — Sourced directly through the Wacker Neuson OEM supply chain, so you receive the same component used in original production — not a generic substitute.
An O-Ring is a circular elastomeric seal used to prevent fluid or gas from passing between two mating surfaces or through a port. In Backhoe Loader applications, O-Rings are commonly found throughout hydraulic circuits, fluid connections, and valve assemblies, where they are compressed into a machined groove to form a pressure-tight barrier. When an O-Ring degrades, cracks, or is pinched during assembly, the seal fails — allowing fluid to escape, introducing air into hydraulic lines, or causing contamination that can damage downstream components. Replacing a worn O-Ring promptly with the correct OEM part is one of the most cost-effective ways to protect the integrity of the broader hydraulic or fluid system.
Part Details
| Part Number | 5100032942 |
|---|---|
| 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.
