The Wacker Neuson 5100051982 is a genuine OEM Water Tank Cap designed for BPS, APS, and DPS series vibratory plate compactors. As a direct OEM replacement, this cap is sourced and manufactured to the same standards as the original component fitted at the factory, ensuring a proper seal and correct fitment across an extensive range of compatible models. This part fits a wide cross-section of the Wacker Neuson battery-powered and gasoline vibratory plate lineup, including APS1030e, APS1550we, BPS1030A, BPS1340B, BPS2050B, DPS2050H, and many more variants in between. Keep a 5100051982 on hand as a routine service item to avoid water system leaks that can interrupt compaction work.
Key Features
- Genuine OEM Sealing Integrity — Manufactured to the original material and thread specification, ensuring a consistent, leak-free seal on the water tank each time the cap is installed.
- Direct Replacement Fit — Threads directly onto the water tank fitting of compatible BPS, APS, and DPS plate compactors with no modification to the tank or mounting required.
- Broad Model Coverage — A single part number covers the full BPS A-series, B-series, and w-variants, all APS battery-powered plate models, and DPS2050H series units, making it a practical stock item for mixed fleets.
- Protects Water System Function — A correctly seated cap maintains water pressure and prevents contamination of the sprinkler system, keeping the plate's surface-wetting function performing as intended during asphalt and paving stone compaction passes.
- Fuel and Fluid Safety Relevance — A cracked or missing tank cap on a plate compactor allows water to escape onto work surfaces and internal components; replacing it promptly prevents uncontrolled fluid loss and protects surrounding machine parts from water intrusion.
The water tank cap seals the onboard water reservoir used by vibratory plate compactors to wet the base plate and prevent asphalt or paving material from sticking during compaction. Without a properly functioning cap, the tank loses water pressure, the sprinkler system underperforms, and the plate surface can drag or pick up material rather than compacting it cleanly. A worn, cracked, or missing cap is a small but high-impact failure point — replacing it with the correct OEM part restores the water system to full working order immediately.
Part Details
| Part Number | 5100051982 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Water Tank Cap |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BPS2050B | BPS2050B | 5100066077 |
| BPS2050Bw | BPS2050Bw | 5100066078 |
| APS1030e | APS1030e | 5100059660 |
| APS1030we | APS1030we | 5100058917 |
| APS1135e | APS1135e | 5100059664 |
| APS1135we | APS1135we | 5100059661 |
| APS1340e | APS1340e | 5100060128 |
| APS1340we | APS1340we | 5100059663 |
| APS1550e | APS1550e | 5100061219 |
| APS1550we | APS1550we | 5100061220 |
| APS2050e | APS2050e | 5100061221 |
| APS2050we | APS2050we | 5100061222 |
| BPS1030A | BPS1030A | 5100059658 |
| BPS1030A US | BPS1030A US | 5100080504 |
| BPS1030A EU | BPS1030A EU | 5100084344 |
| BPS1030Aw | BPS1030Aw | 5100058916 |
| BPS1030Aw US | BPS1030Aw US | 5100080503 |
| BPS1030Aw EU | BPS1030Aw EU | 5100084343 |
| BPS1030B | BPS1030B | 5100065701 |
| BPS1030Bw | BPS1030Bw | 5100065702 |
| BPS1135A | BPS1135A | 5100059662 |
| BPS1135A US | BPS1135A US | 5100080506 |
| BPS1135A EU | BPS1135A EU | 5100084348 |
| BPS1135Aw | BPS1135Aw | 5100059657 |
| BPS1135Aw US | BPS1135Aw US | 5100080505 |
| BPS1135Aw EU | BPS1135Aw EU | 5100084347 |
| BPS1135B | BPS1135B | 5100065703 |
| BPS1135Bw | BPS1135Bw | 5100065704 |
| BPS1340A | BPS1340A | 5100059906 |
| BPS1340A US | BPS1340A US | 5100080508 |
| BPS1340A EU | BPS1340A EU | 5100084350 |
| BPS1340Aw | BPS1340Aw | 5100059659 |
| BPS1340Aw US | BPS1340Aw US | 5100080507 |
| BPS1340Aw EU | BPS1340Aw EU | 5100084349 |
| BPS1340Aws | BPS1340Aws | 5100060129, 5100067726 |
| BPS1340B | BPS1340B | 5100065705 |
| BPS1340Bw | BPS1340Bw | 5100063119, 5100065706 |
| BPS1550A | BPS1550A | 5100061215 |
| BPS1550Aw | BPS1550Aw | 5100061216 |
| BPS1550Aws | BPS1550Aws | 5100067727 |
| BPS1550B | BPS1550B | 5100066075 |
| BPS1550Bw | BPS1550Bw | 5100066076 |
| BPS2050A | BPS2050A | 5100061217 |
| BPS2050Aw | BPS2050Aw | 5100061218 |
| DPS2050H | DPS2050H | 5100061223 |
| DPS2050Hw | DPS2050Hw | 5100061224 |
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.
