The Bomag 05585977 O-Ring is a genuine OEM sealing component designed for BW 145-series and C 825 C single drum rollers. Sourced directly from Bomag, this O-Ring delivers an exact material match and dimensional fit to the original specification. It is compatible across multiple BW 145 variants, including the BW 145 D-3, BW 145 DH-3, BW 145 PDH-3, and C 825 C single drum rollers. When a worn or damaged O-Ring is compromising your machine's hydraulic or fluid system integrity, this genuine OEM replacement is the correct service part to restore it.
Key Features
- Genuine OEM Sealing Material — manufactured to Bomag's original compound and durometer specification, ensuring correct compression set and fluid compatibility for single drum roller service environments
- Exact Dimensional Fit — matches the original cross-section and diameter precisely, seating cleanly into the groove without trimming, stretching, or adapting
- Broad BW 145 Series Coverage — fits BW 145 D-3, BW 145 DH-3, BW 145 PDH-3, and C 825 C single drum rollers, covering a wide range of drum, drive, and engine configurations in this roller family
- Leak Prevention at the Source — a correctly installed O-Ring maintains fluid system pressure and prevents external leaks that can lead to hydraulic or lubrication failures in demanding compaction work
- Verified Part Number Traceability — ordering by Bomag part number 05585977 eliminates guesswork and ensures you receive the correct seal for your specific machine configuration
An O-Ring is a precision sealing element used at fluid connections, port interfaces, and component mating surfaces throughout a roller's hydraulic, lubrication, and cooling systems. It works by compressing between two mating surfaces to form a leak-free barrier under pressure. When an O-Ring hardens, cracks, or is deformed from heat cycling or wear, it loses its ability to seal — resulting in fluid leaks, pressure loss, and potential damage to surrounding components. Replacing a failed O-Ring promptly with the correct genuine OEM part restores system integrity and protects the broader assembly from further harm.
Part Details
| Part Number | 05585977 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Roller | BW 145 D-3 | 00817479, 00817637 |
| Single Drum Roller | BW 145 DH-3 | 00817481, 00817638 |
| Single Drum Roller | BW 145 PDH-3 | 00817483, 00817639 |
| Single Drum Roller | BW145D 3 | 00817576, 00817927 |
| Single Drum Roller | BW145PDH 3 | 00817577 |
| Single Drum Roller | C 825 C | 00817578 |
| Single Drum Roller | BW 145-DH-3 | 00817929 |
| Single Drum Roller | BW145DH 40 | 00818323, 00818939, 00818941 |
| Single Drum Roller | BW 145 DH 40 BW 145 DH 4 | 00818325 |
| Single Drum Roller | BW 145 PDH 40 BW145 PDH 4 | 00818327 |
| Single Drum Roller | BW145D 40 | 00818935, 00818937 |
| Single Drum Roller | BW145PDH 40 | 00818943 |
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.
