The Bomag 05903510 Valve Seat is a genuine OEM component designed for Bomag tandem rollers across the BW 100, BW 120, BW 125, BW 131, BW 135, and BW 138 series. As an authentic Bomag part, it is manufactured to the same specifications as the original, ensuring a consistent, correct fit in the engine assembly. This valve seat is confirmed compatible with a broad range of AC and AD variant tandem rollers, including the BW 100 AD-4, BW 100 AC-4, BW 100 AD-5, BW 100 AC-5, BW 120 AD-4, BW 120 AC-4, BW 120 AD-5, BW 120 AC-5, BW 125 AD-4, BW 125 AC-4, BW 131 AD-5, BW 135 AD-5, BW 138 AC-5, and BW 138 AD-5. When engine components are due for service, sourcing the correct OEM part by part number 05903510 removes the guesswork and keeps the repair on spec.
Key Features
- Genuine OEM Valve Seat — manufactured to Bomag's original specifications, ensuring the correct seating geometry, material hardness, and dimensional tolerances for proper valve sealing in the engine head
- Broad Tandem Roller Coverage — fits BW 100, BW 120, BW 125, BW 131, BW 135, and BW 138 tandem rollers across AC and AD variants in the -4 and -5 generations
- Drop-In Engine Fitment — engineered to seat directly into the cylinder head without machining or adaptation, maintaining the correct valve-to-seat contact pattern
- Protects Engine Compression — a properly seated valve seat maintains cylinder sealing and combustion efficiency; a worn or damaged seat leads to compression loss, rough running, and accelerated valve wear
- Verified by Part Number — ordering by Bomag part number 05903510 ensures you receive the correct component matched to your machine's engine specification
A valve seat is a precision-machined ring pressed into the cylinder head that provides the sealing surface against which the engine's intake or exhaust valve closes. It forms a critical part of the combustion seal — when the valve contacts the seat, it prevents combustion gases from escaping and maintains the compression needed for efficient engine operation. Over time, valve seats can wear, pit, or crack due to heat cycling and repeated valve impact, leading to compression loss, increased fuel consumption, and eventual engine damage if left unaddressed. Replacing a worn valve seat with the correct OEM part restores proper sealing and extends the service life of the surrounding valve train components.
Part Details
| Part Number | 05903510 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Valve Seat |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 100 AD-4 | 00818465, 00824271, 00824273 |
| Tandem Roller | BW 120 AD-4 | 00818469, 00818477, 00818593, 00818733, 00824173 |
| Tandem Roller | BW 120 AC-4 | 00818471, 00818597 |
| Tandem Roller | BW 125 AD-4 | 00818473 |
| Tandem Roller | BW 125 AC-4 | 00818475 |
| Tandem Roller | BW 138 AC-5 | 00818719, 00824929 |
| Tandem Roller | BW 138 AD-5 | 00818721, 00824175, 00824927, 00825351 |
| Tandem Roller | BW 135 AD-5 | 00818723, 00824931, 00825355 |
| Tandem Roller | BW 100 AC-4 | 00818731 |
| Tandem Roller | BW120AD 4 | 00818871 |
| Tandem Roller | BW 100 AD-5 | 00824029, 00824561, 00824833, 00824995, 00825357, 00825643, 00826215 |
| Tandem Roller | BW 120 AC-5 | 00824031, 00824839, 00825363 |
| Tandem Roller | BW 120 AD-5 | 00824033, 00824563, 00824835, 00824997, 00825359, 00825645, 00826217 |
| Tandem Roller | BW 100 AC-5 | 00824275, 00824837, 00825361 |
| Tandem Roller | BW 131 AD-5 | 00824935 |
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.
