The Bomag 72040109 Drive Flange is a genuine OEM component designed for Bomag BW 1050 T, BW 850 T, BW 850 TR, and BW 85 T trench compactors. Sourced directly from Bomag, this drive flange carries the same specifications as the original part installed at the factory, ensuring a straight-forward, bolt-on replacement with no guesswork on fit. Confirmed fitment covers the full range of BW T-series trench compactors listed, so you can order with confidence knowing this is the correct part for your machine.
Key Features
- Genuine OEM Construction — manufactured to Bomag's exact material and dimensional standards for drive flanges, delivering the torque transfer consistency and wear resistance the original design calls for
- Direct Bolt-On Replacement — machined to match the original mounting interface, so this flange seats and torques to spec without additional machining or adaptation
- Verified Fitment for BW T-Series Trench Compactors — confirmed for the BW 1050 T, BW 850 T, BW 850 TR, and BW 85 T, covering the complete range of Bomag BW T-series trench compactors
- Sustained Drive System Integrity — a correctly fitted drive flange maintains proper power transfer from the drivetrain to the compaction drum; a worn or failed flange causes vibration, slippage, and accelerated wear on surrounding driveline components
- Exact Part Number Match — part number 72040109 is the authoritative Bomag reference for this component, eliminating cross-reference errors when sourcing a replacement
The drive flange is a precision-machined coupling component that connects the driveline to the compaction drum or drive shaft assembly, transmitting rotational force from the engine or hydraulic motor through to the working end of the machine. On Bomag trench compactors, maintaining a sound drive flange is critical to consistent compaction output — any play, cracking, or surface wear on the flange face disrupts torque transfer and can introduce vibration throughout the drivetrain. When a drive flange fails, the machine may lose drive, produce uneven compaction, or cause downstream damage to bearings and shaft components, making timely replacement essential to keeping the machine operating at full capacity.
Part Details
| Part Number | 72040109 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Drive Flange |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Trench Compactor | BW 1050 T | 00815203, 00811653 |
| Trench Compactor | BW 850 T | 00811652 |
| Trench Compactor | BW 850 TR | 00815210 |
| Trench Compactor | BW 85 T | 00815204 |
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.
