The Wacker Neuson O-Ring is a genuine OEM component designed for the BL744ch, BL744h, BL742h, BL744c, BL744 EX, and BL742 EX Backhoe Loader series. As a direct source part, the is manufactured to the exact material and dimensional standards required by Wacker Neuson for these machines. Choosing a genuine OEM O-Ring means you get the correct durometer, cross-section, and compound to maintain a proper seal under operating conditions. Confirm your model number before ordering to ensure an accurate match for your specific Backhoe Loader.
Key Features
- Genuine OEM Seal Material — Produced to Wacker Neuson's exact compound and dimensional specification, ensuring correct compression and sealing performance for hydraulic or fluid system applications.
- Drop-In Replacement — Matches the original cross-section and diameter precisely, seating into the existing groove without rework or adaptation.
- Broad Backhoe Loader Coverage — Verified fitment across the BL744ch, BL744h, BL742h, BL744c, BL744 EX, and BL742 EX model lines.
- Leak Prevention — A correctly seated O-Ring maintains fluid containment in the system; a worn or damaged one leads to fluid loss, pressure drop, and accelerated component wear.
- Fluid System Integrity — Proper sealing is critical in hydraulic circuits — using an O-Ring with the correct material grade prevents premature degradation from hydraulic fluid exposure and pressure cycling.
An O-Ring is a circular elastomeric seal that sits in a machined groove between two mating surfaces or around a fitting, preventing fluid or air from escaping the system. In hydraulic and fluid systems like those found in Backhoe Loaders, O-Rings maintain pressure and prevent contamination ingress, both of which are essential to consistent machine performance. When an O-Ring cracks, flattens, or swells due to age or chemical exposure, it loses its sealing ability — resulting in visible leaks, pressure loss, and potential damage to surrounding components if left unaddressed.
Part Details
| Part Number | 5100032645 |
|---|---|
| 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.
