The Wacker Neuson Crankshaft Complete is a genuine OEM crankshaft complete designed for WP1540A, WP1550A, WPU1550A, and WPU1550AW vibratory plates, as well as HP50A, HP100A, HPG50A, HPG100A truss screed power sections, PT2A trash pumps, BT24A and BT36A internal vibrators, and related Wacker Neuson equipment. Sourced directly through Wacker Neuson's authorized parts channel, this crankshaft complete is manufactured to the same specifications as the original component installed at the factory. Broad fitment coverage across the WP and WPU vibratory plate series — including both standard and wheel-kit variants — makes part number a straightforward match for a wide range of Wacker Neuson compact equipment. Order with confidence knowing this is the same assembly your machine was built with.
Key Features
- OEM-Grade Crankshaft Tolerancing — Machined to exact journal diameter and stroke specifications, ensuring correct compression ratio and rod bearing clearance are maintained throughout the engine's service life.
- Drop-In Assembly Fit — Supplied as a complete crankshaft assembly, this unit installs directly into the engine case without requiring additional machining or fitting work on the journals.
- Wide Vibratory Plate Compatibility — Covers WP1540A, WP1540AW, WP1550A, WP1550AW, WPU1550A, WPU1550AW, and VP-series vibratory plates, plus HP and HPG truss screed power sections, PT2A pumps, and BT-series internal vibrators.
- Sustained Compaction Output — A correctly functioning crankshaft keeps the engine delivering consistent power to the exciter unit; a worn or damaged crank causes vibration imbalance, loss of compaction force, and accelerated bearing wear throughout the drivetrain.
- Genuine Wacker Neuson OEM Part — Part number 5100071621 is the same component supplied for original equipment production, ensuring material grade, heat treatment, and dimensional accuracy are not compromised.
The crankshaft is the central rotating component of a four-stroke engine, converting the up-and-down motion of the piston into the rotational force that drives the machine. In a vibratory plate compactor, that rotational output powers the eccentric exciter assembly responsible for generating compaction force — meaning the crankshaft directly affects how effectively the plate compacts soil, gravel, or asphalt. When a crankshaft wears, cracks, or fails, the engine loses power, develops excessive vibration or noise, and will ultimately seize if the bearing journals are compromised, making timely replacement critical to keeping the machine productive.
Part Details
| Part Number | 5100071621 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Crankshaft Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Vibratory Plate, 15kN, 400mm/1 5.5in | WP1540AW | 5000008060, 5000009545, 5000009472, 5000630045 |
| Vibratory Plate, 15 kN, 500mm/ 19.5in | WP1550AW | 5000007576, 5000009546, 5000630043, 5000009486 |
| WP1540A VIBROPLATE | WP1540A | 5000008061, 5000630046 |
| WP1550A Single Direction Vibratory Plate | WP1550A | 5000007579, 5000630044 |
| Vibratory Truss Screed, Power Section | HP100A | 5000009506 |
| HP50A | HP50A | 5000009508 |
| HPG50A | HPG50A | 5000009509 |
| VP1550AW/WH | VP1550AW/WH | 5000630373 |
| WP1540Aw | WP1540Aw US | 5100018327 |
| VP1340AW/WH | VP1340AW/WH | 5000630374 |
| WP1550Aw | WP1550Aw US | 5100018324 |
| WP1540A | WP1540A US | 5100018328 |
| WPU1550AW-US | WPU1550AW-US | 5100069715 |
| WPU1550Aw | WPU1550AW | 5100071591 |
| WP1550A | WP1550A US | 5100018325 |
| WPU1550A-US | WPU1550A-US | 5100069716 |
| WPU1550A | WPU1550A | 5100071592 |
| PT2A | PT2A | 5100058524, 5100058525 |
| HPG100A | HPG100A | 5000009507 |
| Modular Internal Vibrators | D3.5A3 | 5100072402 |
| Modular Internal Vibrators | D3.5A2 | 5100072405 |
| BT24A | BT24A | 5100081469 |
| BT36A | BT36A | 5100081470 |
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.
