The Wacker Neuson Water Tank Cap is a genuine OEM water tank cap designed for a wide range of Wacker Neuson APS, BPS, WP, and DPS series vibratory plates. Sourced directly from Wacker Neuson, this cap delivers an exact fit for models including the APS1030we, APS1135we, APS1340we, BPS1030A, BPS1135Aw, BPS1340Aws, BPS1550A, BPS2050A, WP1550A, DPS2050H, and many more across the full lineup. As a genuine OEM component, it is manufactured to the same standards as the original part your machine left the factory with, ensuring correct sealing performance with no guesswork on compatibility. Cross-reference your model number against the full fitment list before ordering to confirm this is the right cap for your machine.
Key Features
- Genuine OEM Seal Integrity — Manufactured by Wacker Neuson to the same sealing specification as the original, maintaining a proper pressure-tight closure on the water tank.
- Direct Drop-In Replacement — Threads directly onto the water tank filler neck just like the original cap, requiring no modification to the tank or surrounding components.
- Broad Vibratory Plate Compatibility — Fits across multiple Wacker Neuson series including APS, BPS, WP, and DPS vibratory plates in both standard and wide-track configurations.
- Protects Water System Function — A properly sealing tank cap prevents water loss, contamination, and air ingestion into the water sprinkler system, keeping the plate's surface-wetting performance consistent during compaction.
- Verified Part Number — OEM part number 5100051982 confirms this is the correct Wacker Neuson replacement, eliminating the risk of ordering a mismatched cap for your model.
The water tank cap seals the filler opening of the onboard water tank found on vibratory plate compactors equipped with a water sprinkler system. That system wets the asphalt or surface material ahead of the plate during compaction, preventing the plate's base from sticking and ensuring a clean, consistent pass. When the cap fails — through cracking, a damaged thread, or a worn seal — water can leak or evaporate during operation, starving the sprinkler system and causing material to adhere to the base plate. Replacing a worn or damaged cap promptly keeps the water system functioning as intended and protects the working surface on every pass.
Part Details
| Part Number | 5100051982 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Water Tank Cap |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APS1030we | APS1030we | 5100058917 |
| APS1030e | APS1030e | 5100059660 |
| APS1135we | APS1135we | 5100059661 |
| APS1340we | APS1340we | 5100059663 |
| APS1135e | APS1135e | 5100059664 |
| APS1340e | APS1340e | 5100060128 |
| BPS1340Aws | BPS1340Aws | 5100060129, 5100067726 |
| BPS1030Aw | BPS1030Aw | 5100058916 |
| BPS1135Aw | BPS1135Aw | 5100059657 |
| BPS1030A | BPS1030A | 5100059658 |
| BPS1340Aw | BPS1340Aw | 5100059659 |
| BPS1135A | BPS1135A | 5100059662 |
| BPS1340A | BPS1340A | 5100059906 |
| APS1550e | APS1550e | 5100061219 |
| APS1550we | APS1550we | 5100061220 |
| APS2050e | APS2050e | 5100061221 |
| APS2050we | APS2050we | 5100061222 |
| BPS1030B | BPS1030B | 5100065701 |
| BPS1030Bw | BPS1030Bw | 5100065702 |
| BPS1135B | BPS1135B | 5100065703 |
| BPS1135Bw | BPS1135Bw | 5100065704 |
| BPS1340B | BPS1340B | 5100065705 |
| BPS1340Bw | BPS1340Bw | 5100065706, 5100063119 |
| DPS2050H | DPS2050H | 5100061223 |
| DPS2050Hw | DPS2050Hw | 5100061224 |
| WP1550A | WP1550A | 5100062423 |
| WP1550Aw | WP1550Aw | 5100062424 |
| BPS1550A | BPS1550A | 5100061215 |
| BPS1550Aw | BPS1550Aw | 5100061216 |
| BPS2050A | BPS2050A | 5100061217 |
| BPS2050Aw | BPS2050Aw | 5100061218 |
| WP1550e | WP1550e | 5100062425 |
| WP1550we | WP1550we | 5100062426 |
| BPS1550B | BPS1550B | 5100066075 |
| BPS1550Bw | BPS1550Bw | 5100066076 |
| BPS2050B | BPS2050B | 5100066077 |
| BPS2050Bw | BPS2050Bw | 5100066078 |
| BPS1550Aws | BPS1550Aws | 5100067727 |
| Vibratory Plate BPS1030Aw US | BPS1030Aw US | 5100080503 |
| Vibratory Plate BPS1030A US | BPS1030A US | 5100080504 |
| BPS1135Aw | BPS1135Aw US | 5100080505 |
| BPS1135A | BPS1135A US | 5100080506 |
| BPS1340Aw | BPS1340Aw US | 5100080507 |
| BPS1340A | BPS1340A US | 5100080508 |
| Vibratory Plate BPS1030Aw EU | BPS1030Aw EU | 5100084343 |
| Vibratory Plate BPS1030A EU | BPS1030A EU | 5100084344 |
| Vibratory Plate BPS1135Aw EU | BPS1135Aw EU | 5100084347 |
| Vibratory Plate BPS1135A EU | BPS1135A EU | 5100084348 |
| Vibratory Plate BPS1340Aw EU | BPS1340Aw EU | 5100084349 |
| Vibratory Plate BPS1340A EU | BPS1340A EU | 5100084350 |
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.
