The Bomag 05712133 Crankcase is a genuine OEM crankcase designed for Bomag tandem rollers including the BW 138 AD, BW 138 AC, BW 138-AD, BW 135 AD, BW 135 AC, BW 125 ACH, and BW 125 ADH. Sourced directly through authorized Bomag supply channels, this crankcase meets the exact specifications of the original component it replaces. When your engine block integrity is compromised, this is the correct OEM part to restore your machine to full operating condition.
Key Features
- OEM-Grade Engine Structural Integrity — Cast and machined to Bomag's original dimensional specifications, ensuring proper bore alignment, oil passage geometry, and bearing seat tolerances critical to engine longevity.
- Direct Replacement Fit — Matches the original mounting points, gasket surfaces, and hardware interfaces for a straightforward installation with no fabrication or adaptation needed.
- Broad Tandem Roller Coverage — Fits the BW 138 AD, BW 138 AC, BW 138-AD, BW 135 AD, BW 135 AC, BW 125 ACH, and BW 125 ADH tandem rollers, covering multiple variants across this series.
- Genuine OEM Part — Supplied under part number 05712133 as an authentic Bomag component, eliminating the guesswork of fitment compatibility and parts verification.
- Protects Engine Internals — A sound crankcase provides the sealed, rigid housing that keeps lubricating oil contained and moving components properly supported — a compromised crankcase accelerates wear across the entire engine assembly.
The crankcase is the structural core of the engine, forming the sealed enclosure that houses the crankshaft, connecting rods, and lower engine assembly. It maintains the precise alignment of rotating components and contains the engine oil that lubricates critical bearing surfaces. When a crankcase cracks, warps, or develops a breach — whether from impact, thermal stress, or material fatigue — oil pressure drops, contamination enters, and internal component wear accelerates rapidly. Replacing a damaged crankcase with a correct OEM unit like this one restores the engine's structural foundation and prevents cascading damage to the rest of the drivetrain.
Part Details
| Part Number | 05712133 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Crankcase |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 138 AD | 00810105, 00810191, 00817473 |
| Tandem Roller | BW 135 AD | 00810120, 00817471 |
| Tandem Roller | BW 125 ACH | 00817466 |
| Tandem Roller | BW 125 ADH | 00817467 |
| Tandem Roller | BW 135 AC | 00817470 |
| Tandem Roller | BW 138 AC | 00817472 |
| Tandem Roller | BW 138-AD | 00817572 |
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.
