The Bomag 05901422 Inner Disc is a genuine OEM component designed for Bomag BW 177 and BW 179 single drum rollers and MPH 121, MPH 122, MPH 125, MPH 364-2, MPH 600, RS 360 TIER-4F, and RS 650 recycler/stabilizers. Sourced directly from Bomag, this inner disc matches the original in every dimensional and material detail, ensuring a drop-in replacement with no guesswork. This part is confirmed to fit across multiple generation variants of the BW 177 and BW 179 series, as well as the BW 145 DH-5 and BW 145 PDH-5 single drum rollers, covering a wide range of machine configurations.
Key Features
- Genuine OEM Construction — manufactured to Bomag's original disc specifications, matching the friction material grade and dimensional tolerances of the part it replaces
- Direct-Fit Replacement — engineered to seat correctly within the disc stack assembly without shimming, machining, or adaptation
- Broad Fitment Coverage — fits BW 177 and BW 179 single drum rollers across multiple generation variants, BW 145 DH-5 and BW 145 PDH-5 single drum rollers, and MPH 121, MPH 122, MPH 122-2, MPH 125, MPH 364-2, MPH 600, RS 360 TIER-4F, and RS 650 recycler/stabilizers
- Consistent Clutch or Brake Engagement — a correctly functioning inner disc maintains smooth, even torque transfer or braking force; a worn disc causes slippage, heat buildup, and loss of drive response
- Verified Part Number — ordering by part number 05901422 confirms you receive the correct disc for your specific machine, eliminating costly fitment errors on multi-machine fleets
An inner disc is a friction or drive element within a wet disc clutch or disc brake assembly. It works in conjunction with outer discs and pressure plates to transmit drive force or apply braking load through controlled clamping pressure. When inner discs wear thin, become glazed, or warp from heat, the assembly loses its ability to engage cleanly — resulting in slippage, inconsistent drive response, or reduced braking effectiveness. Replacing a worn inner disc restores full engagement force and protects the surrounding components from accelerated wear.
Part Details
| Part Number | 05901422 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Inner Disc |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Recycler / Stabilizer | MPH 121 | 00817587 |
| Recycler / Stabilizer | MPH 122 | 00817595 |
| Single Drum Roller | BW 177 DH-3 USA | 00817677 |
| Single Drum Roller | BW 177 PDH-3 USA | 00817679 |
| Single Drum Roller | BW 177 PDH-4 | 00817763, 00818541 |
| Single Drum Roller | BW 177 DH-4 | 00817765, 00818453, 00818543, 00824037, 00824133 |
| Single Drum Roller | BW 179 DH-4 | 00817767, 00818545, 00824137 |
| Single Drum Roller | BW 179 PDH-4 | 00817769, 00818549, 00824139 |
| Single Drum Roller | BW177DH 3 | 00817865 |
| Single Drum Roller | BW 179 DHC-4 | 00818033, 00818547 |
| Single Drum Roller | BW 177 DHC-4 | 00818035, 00818455 |
| Single Drum Roller | BW 177 DH-40 | 00818169 |
| Single Drum Roller | BW 177 PDH-40 | 00818171 |
| Recycler / Stabilizer | MPH 122-2 | 00818177, 00818727, 00818911, 00824987 |
| Recycler / Stabilizer | MPH 125 | 00818273, 00818681, 00818909 |
| Single Drum Roller | BW 177 PDHC-4 | 00818283, 00818539 |
| Single Drum Roller | BW 179 PDHC-4 | 00818285 |
| Single Drum Roller | BW177PDH 40 | 00818585 |
| Single Drum Roller | BW 177 DH-50 | 00824089 |
| Single Drum Roller | BW 177 PDH-50 | 00824091 |
| Recycler / Stabilizer | MPH 600 | 00824097, 00824099 |
| Single Drum Roller | BW 145 DH-5 | 00824471, 00825721 |
| Single Drum Roller | BW 145 PDH-5 | 00824473, 00825723 |
| Single Drum Roller | BW 177 DH-5 | 00824475, 00824917, 00825435, 00825727 |
| Single Drum Roller | BW 177 PDH-5 | 00824477, 00825437, 00825729 |
| Single Drum Roller | BW 177BVC-5 | 00824479 |
| Recycler / Stabilizer | MPH 600 3B/4i-PB | 00824645 |
| Recycler / Stabilizer | MPH 600 EU-FLEX | 00824751 |
| Recycler / Stabilizer | MPH 364-2 | 00824973 |
| Recycler / Stabilizer | RS 360 TIER-4F | 00825055 |
| Recycler / Stabilizer | RS 650 | 00825131 |
| Single Drum Roller | BW 177-5 | 00825731 |
| Single Drum Roller | BW 177 PDH-5 PL | 00827075 |
| Single Drum Roller | BW 177 DH-5 PL | 00827077, 00827377 |
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.
