The Bomag 05521801 Shim is a genuine OEM component designed for a wide range of Bomag single drum rollers and walk-behind rollers, including the BW 211, BW 177, and BW 179 series. Sourced directly from Bomag, this shim delivers the exact thickness, material grade, and dimensional tolerancing required for correct assembly and bearing or shaft alignment. This part fits an extensive lineup of BW-series machines, spanning walk-behind light rollers such as the BW 60 S, BW 65 S, BW 65 HS, BW 75 S, and BW 90 S, through to heavy single drum rollers including the BW 177 D-3, BW 177 DH-4, BW 179 PDH-4, BW 211 D-5, BW 211 PD-5, and BW 212 D-40, among many others. Choosing a genuine OEM part number 05521801 ensures the shim seats correctly and maintains proper component spacing without the guesswork of sizing an aftermarket alternative. It also fits BW 35 and BW 35 W trench compactors.
Key Features
- OEM-Exact Thickness Tolerance — manufactured to Bomag's precise dimensional specification, ensuring correct spacing and load distribution at the installation point
- Drop-In Replacement — matches the original shim's profile and material grade, installing directly into the same position without modification or re-machining
- Broad BW-Series Coverage — fits BW 177, BW 178, BW 179, BW 211, and BW 212 single drum rollers, BW 60 S, BW 65 S, BW 65 HS, BW 75 S, BW 75 S-2, BW 90 S walk-behind rollers, and BW 35 trench compactors, including multiple generation variants
- Proper Alignment Restored — a correctly fitted shim maintains the designed clearance between mating components, preventing premature wear on adjacent bearings, shafts, or housings
- Genuine Bomag Part — part number 05521801 is an authentic OEM component, backed by Bomag's quality standards and traceable to the original equipment specification
A shim is a precision-thickness spacer inserted between mating components to set or restore the correct clearance, preload, or alignment during assembly. In compaction equipment like Bomag rollers, shims are commonly used in drum drive assemblies, gearboxes, and bearing housings to ensure rotating components run true and loads are transferred evenly. When a shim is missing, worn, or incorrectly sized, adjacent components experience uneven loading that accelerates bearing and seal wear, causes vibration, and can lead to more extensive drivetrain damage over time.
Part Details
| Part Number | 05521801 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Shim |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Roller | BW 211 DE-40 | 00800913, 00818741 |
| Walk-Behind / Light Roller | BW 60 S | 00810011, 00817556, 00811404 |
| Walk-Behind / Light Roller | BW 65 HS | 00810012 |
| Single Drum Roller | BW 177 D-3 | 00815310, 00817503 |
| Single Drum Roller | BW 178 D-3 | 00815515 |
| Single Drum Roller | BW 177 DH-3 | 00817505, 00817751 |
| Single Drum Roller | BW 177 DH 3 | 00817506 |
| Single Drum Roller | BW 177 PDH-3 | 00817508 |
| Single Drum Roller | BW211D 3 | 00817520, 00817581, 00817649 |
| Walk-Behind / Light Roller | BW 65 S | 00817559, 00811405 |
| Walk-Behind / Light Roller | BW 65 S-2 | 00817560, 00817969, 00818069, 00818777 |
| Walk-Behind / Light Roller | BW 75 S-2 | 00817565, 00817971, 00818077, 00818781 |
| Single Drum Roller | BW177PDH 3 | 00817579 |
| Single Drum Roller | BW177DH-3 | 00817580 |
| Single Drum Roller | BW177D-3 | 00817586 |
| Single Drum Roller | BW 177 DH-4 | 00817761, 00817765, 00818453, 00818543, 00824037, 00824133 |
| Single Drum Roller | BW 177 PDH-4 | 00817763, 00818541 |
| Single Drum Roller | BW 179 DH-4 | 00817767, 00818545, 00824137 |
| Single Drum Roller | BW 179 PDH-4 | 00817769, 00818549, 00824139 |
| Single Drum Roller | BW 211 D-4 | 00817771, 00817951, 00818127, 00824159, 00824389 |
| Single Drum Roller | BW 212 D-30 | 00817907 |
| Single Drum Roller | BW 211 PD-4 | 00817939, 00818329, 00824161, 00824391 |
| Single Drum Roller | BW 211 D-40 | 00817941, 00818129, 00818371, 00818391, 00818875, 00824269 |
| Single Drum Roller | BW 179 DHC-4 | 00818033, 00818547 |
| Single Drum Roller | BW 177 DHC-4 | 00818035, 00818455 |
| Single Drum Roller | BW 211 PD-40 | 00818065, 00818319 |
| Single Drum Roller | BW 177 D-40 | 00818165, 00818525 |
| Single Drum Roller | BW 177 DH-40 | 00818169 |
| Single Drum Roller | BW 177 PDH-40 | 00818171 |
| Single Drum Roller | BW 177 PDHC-4 | 00818283, 00818539 |
| Single Drum Roller | BW 179 PDHC-4 | 00818285 |
| Single Drum Roller | BW211D 40 | 00818415 |
| Single Drum Roller | BW211PD 40 | 00818417 |
| Single Drum Roller | BW 177 D-4 | 00818451 |
| Single Drum Roller | BW177D 40 | 00818579 |
| Single Drum Roller | BW177PDH 40 | 00818585 |
| Single Drum Roller | BW 212 D-40 | 00818823, 00824279 |
| Single Drum Roller | BW 211 D-50 | 00818869, 00824425, 00824701 |
| Single Drum Roller | BW 177 D-50 | 00824087 |
| Single Drum Roller | BW 177 DH-50 | 00824089 |
| Single Drum Roller | BW 177 PDH-50 | 00824091 |
| Single Drum Roller | BW 211 PD-50 | 00824195, 00824427, 00824703 |
| Single Drum Roller | BW 211 D-4 EU-Flex | 00824429 |
| Single Drum Roller | BW 211 D-4i | 00824437 |
| Single Drum Roller | BW 211 D-5 | 00824571, 00824859, 00825241, 00826057, 00826575, 00826929, 00826931 |
| Single Drum Roller | BW 211 DH-5 | 00824573, 00826559, 00826905 |
| Single Drum Roller | BW 211 PDH-5 | 00824725, 00826563 |
| Single Drum Roller | BW 211 PD-5 | 00824841, 00825269, 00826561 |
| Single Drum Roller | BW 211-40 | 00826367 |
| Single Drum Roller | BW 211 D-5 SL | 00826379, 00826703, 00826825 |
| Single Drum Roller | BW 211 D-5 PL | 00827237, 00827249 |
| Single Drum Roller | BW 211 DH-5 PL | 00827239, 00827251 |
| Single Drum Roller | BW 211 PD-5 PL | 00827241 |
| Single Drum Roller | BW 211 PDH-5 PL | 00827243 |
| Trench Compactor | BW 35 | 00810010, 00817853 |
| Trench Compactor | BW 35 W | 00811508, 00817855 |
| Walk-Behind / Light Roller | BW 75 E | 00811011, 00811643 |
| Walk-Behind / Light Roller | BW 75 S | 00810014, 00811406 |
| Walk-Behind / Light Roller | BW 90 S | 00810016 |
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.
