The Bomag 05818351 Cylinder Block is a genuine OEM engine component designed for Bomag BW 131, BW 135, and BW 138 tandem rollers. Sourced directly from Bomag, this cylinder block delivers the exact tolerances and material specifications required to maintain engine integrity across the full range of compatible machines. This component fits an extensive lineup of BW-series tandem rollers, including the BW 125 ACH, BW 125 ADH, BW 131 ACW-2, BW 131 AD-2, BW 131 ACW-3, BW 131 AD-3, BW 131 AD-5, BW 131 ACW-5, BW 135 AC, BW 135 AD, BW 135 AD-5, BW 138 AC, BW 138 AD, BW 138-AD, BW 138 AC-5, and BW 138 AD-5. As a genuine OEM part, it meets Bomag's original design standards for fit and function — giving you confidence that the engine rebuild or replacement is done right the first time.
Key Features
- Genuine OEM Casting Integrity — Machined to Bomag's original bore dimensions and surface finish specifications, ensuring proper ring seal and cylinder wall durability critical to engine longevity.
- Drop-In Engine Replacement — Matches all original mounting points, coolant passages, and oil galleries for a straightforward installation without modification.
- Broad Tandem Roller Coverage — Compatible with BW 125, BW 131, BW 135, and BW 138 tandem rollers across multiple generation variants, including AC, AD, ACH, ADH, ACW, and -2, -3, and -5 series machines.
- Restored Engine Compression — A correctly fitted cylinder block maintains proper compression ratios, supporting full power output and fuel efficiency on the asphalt drum — critical for smooth, consistent compaction passes.
- Verified Bomag Part Number — Carries part number 05818351 as issued by Bomag, eliminating fitment guesswork when sourcing for engine overhaul or block replacement jobs.
The cylinder block is the structural core of the engine, forming the housing for the pistons, cylinders, and coolant jackets. It provides the rigid foundation that keeps all reciprocating components in precise alignment during combustion. When a cylinder block is cracked, warped, or worn beyond serviceable limits, the engine loses compression, develops coolant leaks, or suffers catastrophic internal damage — making prompt replacement essential to restoring full machine operation on your tandem roller.
Part Details
| Part Number | 05818351 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Cylinder Block |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 138 AD | 00810191, 00817473, 00818359 |
| Tandem Roller | BW 125 ACH | 00817466 |
| Tandem Roller | BW 125 ADH | 00817467 |
| Tandem Roller | BW 131 ACW-2 | 00817468 |
| Tandem Roller | BW 131 AD-2 | 00817469 |
| Tandem Roller | BW 135 AC | 00817470 |
| Tandem Roller | BW 135 AD | 00817471, 00818357 |
| Tandem Roller | BW 138 AC | 00817472, 00818361 |
| Tandem Roller | BW 138-AD | 00817572, 00818389 |
| Tandem Roller | BW 131 ACW-3 | 00818697 |
| Tandem Roller | BW 131 AD-3 | 00818699 |
| Tandem Roller | BW 138 AC-5 | 00818719 |
| Tandem Roller | BW 138 AD-5 | 00818721, 00824175, 00824927 |
| Tandem Roller | BW 135 AD-5 | 00818723 |
| Tandem Roller | BW 131 AD-5 | 00824935 |
| Tandem Roller | BW 131 ACW-5 | 00824937 |
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.
