The Bomag 09180402 Fitting Key is a genuine OEM component designed for Bomag BW 60 S, BW 65 HS, BW 65 S, BW 75 E, BW 75 S, and BW 90 S walk-behind and light rollers, BPR 50/55 D reversible vibratory plates, and BW 35 and BW 35 W trench compactors. As a direct OEM part sourced through Bomag's authorized supply chain, this fitting key is manufactured to the exact tolerances and specifications required by each compatible machine. Correct keyed fitment is critical in these applications — using the right component ensures proper shaft-to-hub engagement and prevents costly drivetrain damage down the line.
Key Features
- OEM-Spec Key Profile — manufactured to Bomag's exact dimensional tolerances for a true shaft-and-keyway engagement, eliminating slop or misalignment at the drive interface
- Drop-In Replacement — matches the original geometry exactly, installing directly into the keyway without modification for the BW 60 S, BW 65 S, BW 75 E, BW 90 S, BPR 50/55 D, BW 35, and other compatible models
- Broad Fleet Coverage — a single genuine OEM part number 09180402 services walk-behind and light rollers, a reversible vibratory plate, and trench compactors across the Bomag lineup, including the BW 65 HS, BW 75 S, and BW 35 W
- Torque Transfer Integrity — a properly seated fitting key locks rotating components in position, ensuring full torque is transmitted from shaft to hub without rotational slip or wear-induced backlash
- Genuine Bomag Part — supplied as authentic OEM hardware, meaning the metallurgy, hardness, and finish match the original production specification for long service life in demanding compaction environments
A fitting key is a small but critical power-transmission component seated in a machined slot — the keyway — between a shaft and a mating hub or gear. Its job is to lock those two rotating parts together so that torque transfers cleanly from one to the other without slippage. When a fitting key wears, shears, or goes missing, the shaft simply spins inside the hub, making the driven component — whether a drum, impeller, or pulley — completely ineffective. Replacing a damaged or worn fitting key promptly restores full mechanical drive and prevents secondary damage to the keyway surfaces themselves.
Part Details
| Part Number | 09180402 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Fitting Key |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Walk-Behind / Light Roller | BW 60 S | 00810011, 00817556, 00811404 |
| Walk-Behind / Light Roller | BW 65 HS | 00810012, 00810013, 00810113 |
| Walk-Behind / Light Roller | BW 65 S | 00817559, 00811405 |
| Reversible Vibratory Plate | BPR 50/55 D | 00813333 |
| 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.
