The Wacker Neuson Valve Stem Seal is a genuine OEM component designed for a wide range of Wacker Neuson VP, WP, WPP, WPU, and AP series single-direction vibratory plates, including the VP1135A, VP1550A, VP1340A, VP2050A, WP1540A, WP1550A, WP2050A, and the RS600A single drum vibratory roller. As a genuine Wacker Neuson part, the is manufactured to the exact material and dimensional specifications used in original production, ensuring a correct drop-in fit without guesswork. This seal is also confirmed to fit the HP50A, WPU1550A, WPU1550AW, and MP15A models, covering one of the broadest compatibility ranges in the Wacker Neuson compaction lineup.
Key Features
- OEM-Grade Seal Material — Manufactured from the same elastomer compound used at the factory, delivering the compression resistance and heat tolerance a valve stem seal demands in a high-cycle compaction engine.
- Exact Dimensional Match — Sized to the original valve stem diameter and groove profile, so it seats correctly on installation without shimming or adjustment.
- Broad Wacker Neuson Compaction Fitment — Confirmed for VP, WP, WPP, WPU, and AP series vibratory plates plus the RS600A roller, covering both standard and AW (water-assisted) variants across multiple production series.
- Prevents Oil Consumption and Smoke — A fresh, properly sealing valve stem seal stops oil from being drawn past the valve guide into the combustion chamber, keeping combustion clean and engine output consistent.
- Genuine Wacker Neuson Part — Sourced directly through authorized Wacker Neuson supply channels; part number 5000406681 matches the OEM bill of materials for all listed models.
A valve stem seal fits around the valve stem where it passes through the cylinder head guide, creating a controlled barrier that prevents engine oil from being pulled into the combustion chamber during the intake stroke. When this seal wears, hardens, or cracks, oil migrates past the valve stem and burns off with the air-fuel mixture, producing blue exhaust smoke and steadily increasing oil consumption. Left unaddressed, a failing valve stem seal can foul spark plugs, build carbon deposits on valve faces, and reduce overall compression efficiency — all of which rob a vibratory plate or roller of the consistent engine output it needs to compact effectively.
Part Details
| Part Number | 5000406681 |
|---|---|
| Old Part Number | 0406681 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Valve Stem Seal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| VP1135AW VIBROPLATE | VP1135AW | 5000009058, 5000630060 |
| VP1135A VIBROPLATE | VP1135A | 5000009057, 5000630059 |
| VP1550AW VIBROPLATE | VP1550AW | 5000009028, 5000630055 |
| VP1340AW VIBROPLATE | VP1340AW | 5000009032, 5000630058 |
| WPU1550A | WPU1550A | 5000630033, 5100071592 |
| WPU1550Aw | WPU1550Aw | 5000630034 |
| VP1550A Single Direction Vibratory Plate | VP1550A | 5000009027, 5000630054 |
| VP1340A VIBROPLATE | VP1340A | 5000009031, 5000630057 |
| VP2050A VIBROPLATE | VP2050A | 5000009087, 5000630062 |
| Single Direction Plate | VPH70 | 5000006907 |
| Single direction vibratory plate WP1235A | WP1235A | 5000630016 |
| WPP 1550Aw | WPP1550Aw | 5000630030 |
| Modular Internal Vibrators | HD 3.7 | 5000006906 |
| Single Direction Plates | AP1135A | 5000009519 |
| Single Direction Plates | AP1550AW | 5000009540 |
| WPP 1540A | WPP1540A | 5000630025 |
| WPP 1550A | WPP1550A | 5000630029 |
| HP50A | HP50A | 5000009508 |
| WP 1540A | WP1540A | 5000630017 |
| WP 1550A | WP1550A | 5000630019 |
| WP 2050A | WP2050A | 5000630022 |
| WPP 1540Aw | WPP1540Aw | 5000630026 |
| Single Direction Plates | AP1550A | 5000009539 |
| Single Direction Plates | WP1235Aw | 5000630103 |
| Single Direction Plates | WP1235Aw-L | 5000630104, 5000630105 |
| Single Direction Plates | WP1235Aw-LL | 5000630122 |
| VP2050AW VIBROPLATE | VP2050AW | 5000009510 |
| Single Direction Plates | WP1540Aw-L | 5000630123 |
| Reversible Plates | WPU 1550A-L | 5000630124 |
| Single Direction Plates | WP2050Aw-L | 5000630125 |
| Single Direction Plates | WP1550Aw-L | 5000630126 |
| Single Drum Vibratory Roller | RS600A | 5000630010 |
| Single Direction Plates | WP1550Aw | 5000630112 |
| Single Direction Plate | WP2050Aw | 5000630115 |
| VP1550AW/WH | VP1550AW/WH | 5000630373 |
| VP1550AW-CN | VP1550AW-CN | 5100055200 |
| Single Direction Plates | WP1540Aw | 5000630106 |
| Soil and Asphalt Compaction | MP15A | 5000630318 |
| WPU1550AW-US | WPU1550AW-US | 5100069715 |
| WPU1550A-US | WPU1550A-US | 5100069716 |
| WPU1550Aw | WPU1550AW | 5100071591 |
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.
