The Bomag 05740398 Valve Stem Seal is a genuine OEM component designed for Bomag BW 80, BW 90, and BW 100 series tandem rollers. As an authentic Bomag part, this valve stem seal is manufactured to the exact material and dimensional standards of the original, ensuring a correct installation in the engine cylinder head. This seal fits a broad range of tandem roller variants including the BW 80 AD-2, BW 90 AD-2, BW 100 ADM-2, BW 80 ADS, BW 90 AC-2, BW 100 SCC-5, BW 80 AD-5, BW 90 AD-5, BW 100 ADM-5, BW 90 SC-5, BW 100 SC-5, BW 100 ACM-5, BW 90 AC-5, BW 90 SL-5, BW 90 SL-5 CC, and BW 100 SLM-5. Order part number 05740398 with confidence knowing it is sourced directly from Bomag's OEM supply chain.
Key Features
- OEM Elastomer Compound — manufactured from the same heat- and oil-resistant rubber compound as the original, ensuring the correct compression and sealing performance in the valve train environment
- Drop-In Engine Fit — profiles and lip geometry match the original valve stem dimensions exactly, allowing this seal to seat correctly on the valve guide without machining or adaptation
- Broad Tandem Roller Coverage — a single part number 05740398 covers sixteen tandem roller variants across the BW 80, BW 90, and BW 100 series, including the BW 80 AD-5, BW 90 SL-5 CC, and BW 100 SLM-5
- Engine Oil Consumption Control — a properly sealing valve stem seal prevents engine oil from being drawn past the valve stem into the combustion chamber, keeping oil consumption in check and exhaust smoke-free
- Genuine OEM Sourcing — supplied as an authentic Bomag replacement, this component meets the same quality and traceability standards as the part it replaces, giving fleet managers and technicians full confidence in the repair
A valve stem seal fits over the valve stem where it passes through the cylinder head guide, forming a controlled barrier that limits the amount of engine oil migrating down into the combustion chamber. When this seal is in good condition, it allows just enough lubrication to keep the valve stem moving freely while blocking excess oil from burning off during combustion. When the seal ages, hardens, or cracks — common results of prolonged heat exposure — oil slips past unchecked, leading to increased oil consumption, blue exhaust smoke at startup, and potential fouling of spark plugs or injectors. Replacing a worn valve stem seal promptly restores proper engine efficiency and protects downstream components from oil contamination.
Part Details
| Part Number | 05740398 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Valve Stem Seal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 80 AD-2 | 00810280, 00817566 |
| Tandem Roller | BW 90 AD-2 | 00810281, 00817569, 00818041, 00818507 |
| Tandem Roller | BW 100 ADM-2 | 00817459 |
| Tandem Roller | BW 80 ADS | 00817567, 00818513 |
| Tandem Roller | BW 90 AC-2 | 00817568, 00818045 |
| Tandem Roller | BW 100 SCC-5 | 00818505, 00824127, 00825295 |
| Tandem Roller | BW 80 AD-5 | 00818707, 00824117, 00825283 |
| Tandem Roller | BW 90 AD-5 | 00818709, 00824119, 00825285 |
| Tandem Roller | BW 100 ADM-5 | 00818711, 00824121, 00825289 |
| Tandem Roller | BW 90 SC-5 | 00818713, 00824125 |
| Tandem Roller | BW 100 SC-5 | 00818715, 00824129 |
| Tandem Roller | BW 100 ACM-5 | 00818717, 00824123, 00825291 |
| Tandem Roller | BW 90 AC-5 | 00825287 |
| Tandem Roller | BW 90 SL-5 | 00826551 |
| Tandem Roller | BW 90 SL-5 CC | 00826783 |
| Tandem Roller | BW 100 SLM-5 | 00827125 |
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.
