The Bomag 05740371 Drain Cock is a genuine OEM component designed for Bomag BW 80 AD-2, BW 80 ADS, BW 90 AC-2, BW 90 AD-2, and BW 100 ADM-2 tandem rollers. Sourced directly from Bomag, this drain cock matches the original part in material, thread specification, and sealing geometry — no guesswork on fit. This replacement installs directly in place of the factory unit, restoring full drainage function to your machine's fluid system. If you're servicing one of these tandem rollers and need a dependable OEM drain cock, part number 05740371 is the correct replacement.
Key Features
- OEM Sealing Integrity — manufactured to Bomag's original thread and seat specifications, ensuring a leak-free seal every time the valve is closed
- Drop-In Replacement — matches the original mounting thread and body dimensions for straightforward installation on covered tandem roller models
- Broad Tandem Roller Coverage — fits the BW 80 AD-2, BW 80 ADS, BW 90 AC-2, BW 90 AD-2, and BW 100 ADM-2 tandem rollers
- Controlled Fluid Drainage — allows clean, deliberate draining of system fluids during routine service intervals, protecting components and keeping maintenance efficient
- Genuine Bomag Part — backed by Bomag's OEM supply chain, so you know part number 05740371 is the same component that came on the machine from the factory
A drain cock is a small manually operated valve fitted to fluid reservoirs, cooling circuits, or hydraulic systems to allow controlled draining during service. Opening the valve lets fluid evacuate cleanly without the need to disconnect hoses or disturb adjacent components. When a drain cock fails — through a cracked body, stripped thread, or a valve that no longer seats properly — it can result in uncontrolled fluid loss, contamination during service, or the inability to perform a proper fluid change. Replacing a worn or damaged drain cock promptly keeps routine maintenance clean and prevents incidental damage to surrounding hardware.
Part Details
| Part Number | 05740371 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Drain Cock |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 80 AD-2 | 00810280, 00817566 |
| Tandem Roller | BW 100 ADM-2 | 00817459 |
| Tandem Roller | BW 80 ADS | 00817567 |
| Tandem Roller | BW 90 AC-2 | 00817568, 00818045 |
| Tandem Roller | BW 90 AD-2 | 00817569, 00818041 |
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.
