The Wacker Neuson Hex Nut is a genuine OEM hex nut designed for the BL744ch, BL744h, BL742h, BL744c, BL744 EX, and BL742 EX Backhoe Loader series. Sourced directly from Wacker Neuson, this is an exact-match OEM replacement that installs to the original specification without any guesswork. Confirmed fitment spans the full BL700-series Backhoe Loader lineup, making it the correct choice whether you're servicing a BL744ch or a BL742 EX. When you need a reliable fastener that matches the original hardware precisely, part number is the straightforward answer.
Key Features
- OEM-Grade Thread Integrity — Manufactured to Wacker Neuson's original torque and thread specification, so the nut seats and clamps exactly as the factory intended.
- Drop-In Hardware Match — Matches the original hex size, thread pitch, and material grade for a direct swap with no reworking of the mating fastener or hardware stack.
- Broad BL700-Series Coverage — A single part number covers the BL744ch, BL744h, BL742h, BL744c, BL744 EX, and BL742 EX Backhoe Loaders, simplifying parts ordering across your fleet.
- Structural Holding Power — A correctly torqued hex nut maintains clamping load on critical joints; a worn, stripped, or incorrect nut risks joint loosening under the vibration and load cycles typical of backhoe operation.
- Genuine Wacker Neuson Part — Supplied as a genuine OEM component, traceable to Wacker Neuson's parts system under part number 5100040133 for accurate inventory and service records.
A hex nut is a six-sided threaded fastener that pairs with a bolt or stud to clamp two or more components firmly together. In heavy equipment such as a backhoe loader, hex nuts appear throughout the machine — securing structural brackets, hydraulic line fittings, covers, and accessory mounts — and they must maintain consistent clamping force despite constant vibration, shock loads, and thermal cycling. A nut that has stripped threads, incorrect thread pitch, or the wrong material grade can back off over time or fail to reach the required torque, leading to loose joints, component movement, and potential damage to surrounding hardware. Replacing a worn or damaged nut with the correct OEM part restores the fastener joint to its original holding strength and keeps the assembly properly secured.
Part Details
| Part Number | 5100040133 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Hex Nut |
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 |
| Electrical | Electrical | 5100047484 |
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.
