The Bomag 31781540 Belt Pulley is a genuine OEM component designed for BC 771 RB and BC 771 RS refuse and landfill compactors. Sourced directly from Bomag, this belt pulley meets the original engineering specifications for these machines, ensuring correct alignment and power transfer from day one. This part is a direct replacement for the factory-installed pulley on BC 771 RB and BC 771 RS compactors, fitting the existing drive system without any rework or modification to the surrounding components.
Key Features
- Genuine OEM Construction — Manufactured to Bomag's original design tolerances, delivering the correct diameter, bore, and groove profile for consistent belt tracking and drive efficiency on refuse and landfill compactors.
- Direct Replacement Fit — Engineered to match the original mounting configuration on BC 771 RB and BC 771 RS compactors, dropping into place against the existing belt and drive hardware.
- Confirmed Fitment — Verified for BC 771 RB and BC 771 RS refuse and landfill compactors, so you can order with confidence knowing this is the correct part for your machine.
- Sustained Drive Performance — A properly seated belt pulley maintains belt tension and alignment, protecting the belt from premature wear and keeping auxiliary drive systems running at full output.
- Exact Part Number Traceability — Part number 31781540 is the authoritative Bomag OEM reference, eliminating guesswork when sourcing or cross-referencing for your service records.
A belt pulley transfers rotational power from the engine or motor to a driven component via a belt drive system. It must maintain precise concentricity and groove geometry to keep the belt seated correctly under load — even minor runout or wear can cause belt slippage, accelerated belt degradation, or loss of drive to the component it powers. On heavy refuse and landfill compactors like the BC 771 RB and BC 771 RS, where machine uptime directly affects site throughput, a worn or damaged pulley can compromise the reliability of critical auxiliary systems. Replacing a failed pulley with a genuine Bomag part restores correct belt tension, alignment, and load transfer to the original specification.
Part Details
| Part Number | 31781540 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Belt Pulley |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Refuse / Landfill Compactor | BC 771 RB | 00817403 |
| Refuse / Landfill Compactor | BC 771 RS | 00817405 |
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.
