The Bomag 05901421 Outer Disc is a genuine OEM component designed for Bomag MPH and RS series recyclers and stabilizers, including the MPH 121, MPH 122, MPH 122-2, MPH 125, MPH 600, MPH 600 3B/4i-PB, MPH 600 EU-FLEX, MPH 364-2, RS 360 TIER-4F, and RS 650. Sourced directly from Bomag, this outer disc carries the same specifications as the part originally installed at the factory, ensuring a correct, consistent fit across all compatible machines. Keeping this component in serviceable condition is essential to maintaining smooth clutch or brake pack operation on these high-demand recycler/stabilizer units.
Key Features
- Genuine OEM Construction — manufactured to Bomag's exact material and dimensional specifications for disc friction surfaces, delivering consistent clamping force and wear characteristics in clutch or brake pack assemblies
- Direct-Replacement Fit — engineered to drop into the same disc stack position as the original, with matching outer diameter and spline or tab engagement for straightforward installation
- Broad MPH and RS Series Coverage — a single part number covering the MPH 121, MPH 122, MPH 122-2, MPH 125, MPH 600, MPH 600 3B/4i-PB, MPH 600 EU-FLEX, MPH 364-2, RS 360 TIER-4F, and RS 650 recycler/stabilizer machines
- Sustained Clutch or Brake Pack Performance — a worn or glazed outer disc reduces clamping efficiency and can cause slippage or uneven engagement; replacing it with this OEM disc restores full torque transfer and smooth actuation
- Verified Part Number — order with confidence using Bomag part number 05901421 to confirm you are receiving the correct disc for your machine's disc pack assembly
The outer disc is a friction or separator plate within a wet disc clutch or brake pack assembly. It works in conjunction with inner discs and actuating pistons to transmit or arrest torque through hydraulic clamping force. When the outer disc wears thin, warps, or loses its friction surface integrity, the assembly can slip under load, overheat, or fail to fully disengage — leading to erratic machine response and accelerated wear on adjacent components. Replacing the disc at the first sign of wear keeps the clutch or brake pack operating within its designed engagement range.
Part Details
| Part Number | 05901421 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Outer Disc |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Recycler / Stabilizer | MPH 121 | 00817587 |
| Recycler / Stabilizer | MPH 122 | 00817595 |
| Recycler / Stabilizer | MPH 122-2 | 00818177, 00818727, 00818911, 00824987 |
| Recycler / Stabilizer | MPH 125 | 00818273, 00818681, 00818909 |
| Recycler / Stabilizer | MPH 600 | 00824097, 00824099 |
| 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 |
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.
