The Bomag 05729194 Valve Seat Ring is a genuine OEM component designed for Bomag BW-series single drum rollers and tandem rollers, including the BW 145, BW 177, BW 179, and BW 161 families. As an authentic Bomag part, this valve seat ring is manufactured to the same specifications as the original, ensuring a correct fit and consistent engine sealing performance. This part is confirmed to fit a broad range of BW-series machines, covering models such as the BW 145 DH 40, BW 177 D-4, BW 177 DH-4, BW 179 DH-4, BW 161 AD-4, BW 154 AD-4, and BW 151 AD-4, among others. When replacing a worn or damaged valve seat, sourcing the correct OEM part number 05729194 is essential to restoring proper compression and engine efficiency.
Key Features
- OEM-Grade Sealing Integrity — Manufactured to Bomag's original material and dimensional specifications, this valve seat ring delivers consistent combustion-chamber sealing and resists heat fatigue over extended service cycles.
- Direct Engine Replacement — This valve seat ring installs directly into the cylinder head as a drop-in replacement, matching the press-fit dimensions of the original seat for proper retention without rework.
- Broad BW-Series Coverage — Fits a wide range of Bomag single drum rollers and tandem rollers across the BW 145, BW 151, BW 154, BW 161, BW 177, and BW 179 model families, including D, DH, PDH, DHC, PDHC, AD, AC, and ADO variants.
- Protects Compression and Engine Output — A correctly seated valve seat ring maintains the tight combustion seal needed for full engine power and fuel efficiency — a worn or improperly fitted seat causes compression loss, rough running, and accelerated valve wear.
- Genuine Bomag Part — Supplied as a genuine OEM component under part number 05729194, backed by Bomag's product authenticity and traceability for fleet maintenance records.
The valve seat ring is a hardened metal insert pressed into the cylinder head that provides a precision sealing surface for the engine's intake or exhaust valve to close against. It is critical to maintaining combustion chamber pressure — without a sound seat, the valve cannot seal fully, leading to compression loss, misfires, and overheating. When a valve seat ring becomes worn, pitted, or cracked, it must be replaced promptly to avoid more extensive cylinder head damage and to restore the engine to its rated performance.
Part Details
| Part Number | 05729194 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Valve Seat Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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 |
| Tandem Roller | BW 154 AD-4 AM | 00818447 |
| Single Drum Roller | BW 177 D-4 | 00818451 |
| Single Drum Roller | BW 177 DH-4 | 00818453, 00818543, 00824037, 00824133 |
| Single Drum Roller | BW 177 DHC-4 | 00818455 |
| Tandem Roller | BW 161 AD-4 | 00818481, 00818959, 00824003 |
| Single Drum Roller | BW 177 PDHC-4 | 00818539 |
| Single Drum Roller | BW 177 PDH-4 | 00818541 |
| Single Drum Roller | BW 179 DH-4 | 00818545, 00824137 |
| Single Drum Roller | BW 179 DHC-4 | 00818547 |
| Single Drum Roller | BW 179 PDH-4 | 00818549, 00824139 |
| Tandem Roller | BW 141 AD-4 AM | 00818553 |
| Tandem Roller | BW 151 AD-4 AM | 00818555, 00824017 |
| Tandem Roller | BW 154 AD-4 | 00818557 |
| Tandem Roller | BW 151 AC-4 AM | 00818559, 00824025 |
| Tandem Roller | BW 141 AD-4 | 00818561, 00818955, 00818999 |
| Tandem Roller | BW 151 AD-4 | 00818563, 00818957, 00824001 |
| Tandem Roller | BW 151 AC-4 | 00818565, 00824011 |
| Tandem Roller | BW 161 AC-4 | 00818589, 00818967 |
| Single Drum Roller | BW145D 40 | 00818935, 00818937 |
| Single Drum Roller | BW145PDH 40 | 00818943 |
| Tandem Roller | BW 161 ADO-4 | 00824333, 00824335 |
| Tandem Roller | BW 161 AD-4 EU-Flex | 00824393 |
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.
