The Bomag 05559542 Reducing Nipple is a genuine OEM fitting designed for Bomag BW 213 D single drum rollers and a range of Bomag tandem rollers including the BW 164 AD, BW 164 AC-2, BW 164 AD-2, BW 161 AC-2, BW 161 AD-2, BW 202 AD-2, and BW 202 AHD-2. Sourced directly from Bomag, this reducing nipple matches the original component in thread specification, sizing, and material — ensuring a leak-free, secure connection right out of the box. Whether you are servicing a tandem roller or a single drum roller, this part confirms correct fitment for all listed models without modification to surrounding components.
Key Features
- Genuine OEM Thread Integrity — manufactured to Bomag's original thread and material specifications, delivering the same sealing performance as the part it replaces
- Direct-Fit Replacement — steps down between two fluid line sizes exactly as the factory fitting does, connecting cleanly to existing ports and lines on covered machines
- Broad Roller Coverage — fits the BW 213 D single drum roller and seven tandem roller variants including the BW 164 AD, BW 161 AC-2, BW 161 AD-2, BW 164 AC-2, BW 164 AD-2, BW 202 AD-2, and BW 202 AHD-2
- Leak-Free Fluid Routing — a correctly seated reducing nipple maintains system pressure across hydraulic or coolant circuits; a worn or cross-threaded fitting risks fluid loss and circuit failure
- Hydraulic System Safety — fluid line fittings that fail under pressure can cause uncontrolled fluid release; using the correct OEM part maintains safe operating pressure and protects downstream components
A reducing nipple is a threaded adapter fitting that connects two fluid lines of different diameters within a hydraulic, coolant, or fluid circuit. It allows the system to transition between pipe or hose sizes without additional adapters, keeping fluid routing compact and secure. When a reducing nipple corrodes, strips, or develops a leak, it compromises pressure integrity throughout the circuit, potentially leading to fluid loss, overheating, or hydraulic failure — making prompt replacement with a correctly specified part essential.
Part Details
| Part Number | 05559542 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Reducing Nipple |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Roller | BW 213 D | 00810062, 00814209 |
| Tandem Roller | BW 164 AD | 00810155 |
| Tandem Roller | BW 161 AC-2 | 00817492 |
| Tandem Roller | BW 161 AD-2 | 00817493, 00817494 |
| Tandem Roller | BW 164 AC-2 | 00817495 |
| Tandem Roller | BW 202 AD-2 | 00817516, 00817517 |
| Tandem Roller | BW 202 AHD-2 | 00817518 |
| Tandem Roller | BW 164 AD-2 | 00817640 |
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.
