The Bomag 09190403 Woodruff Key is a genuine OEM component designed for a broad range of Bomag pavers, walk-behind and light rollers, single drum rollers, tandem rollers, trench compactors, reversible vibratory plates, and recycler/stabilizers. Sourced directly from Bomag, this Woodruff Key meets the exact dimensional and material standards of the original part it replaces. This key fits models including the BF 300 P, BF 300 C, BF 300 P S340 V, BF 300 P S340 TV, BF 300 C S340 TV pavers; BW 60 S, BW 65 S, BW 65 HS, BW 75 E, and BW 75 S walk-behind and light rollers; BW 213 D and BW 212 D-2 single drum rollers; BW 161 AC-2, BW 161 AD-2, BW 164 AD, BW 164 AC-2, BW 164 AD-2, BW 202 AD-2, and BW 202 AHD-2 tandem rollers; BW 35 and BW 35 W trench compactors; BPR 50/55 D reversible vibratory plate; and MPH 125, MPH 600, MPH 600 3B/4i-PB, MPH 600 EU-FLEX, RS 460, RS460 STAGE V, RS 500, and RS 650 recycler/stabilizers. Ordering by part number 09190403 ensures you receive the correct key geometry for a proper shaft-to-hub fit.
Key Features
- Genuine OEM Material Grade — manufactured to Bomag's exact hardness and dimensional tolerances for a Woodruff Key, ensuring the key seats fully in its keyway without play or deformation under torque load.
- Direct Drop-In Fit — the semi-circular profile of this Woodruff Key seats directly into the milled keyway on the shaft, aligning the hub or pulley without any machining or filing.
- Broad Cross-Family Coverage — a single part number 09190403 covers pavers, walk-behind and light rollers, single drum rollers, tandem rollers, trench compactors, a reversible vibratory plate, and recycler/stabilizers across the Bomag lineup, including the BF 300 P, BW 213 D, MPH 125, RS 500, and BPR 50/55 D.
- Torque Transfer Integrity — a correctly seated Woodruff Key transmits rotational force cleanly between shaft and hub; a worn or missing key allows the mating component to slip, causing rapid wear to both the shaft and the hub bore.
A Woodruff Key is a small, semi-circular metal key that sits in a curved slot milled into a rotating shaft and projects into a matching slot in a gear, pulley, or sprocket hub, locking the two components together so they rotate as one unit. It serves as a mechanical insurance policy — transmitting drive torque between the shaft and the mounted component while also acting as a shear point that can protect more expensive shaft or hub surfaces from catastrophic damage under sudden overload. When a Woodruff Key wears, shears, or falls out, the hub or pulley can spin freely on the shaft, causing loss of drive, vibration, or secondary damage to surrounding components, which is why replacing it with a dimensionally correct OEM part is essential to restoring proper machine operation.
Part Details
| Part Number | 09190403 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Woodruff Key |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Paver | BF 300 P | 00800647 |
| Paver | BF 300 C | 00800649 |
| Paver | BF 300 P S340 V | 00800711 |
| Paver | BF 300 P S340 TV | 00800715 |
| Paver | BF 300 C S340 TV | 00800717 |
| Walk-Behind / Light Roller | BW 60 S | 00810011, 00817556, 00811404 |
| Walk-Behind / Light Roller | BW 65 HS | 00810012, 00810013, 00810113 |
| Single Drum Roller | BW 213 D | 00810062, 00814209 |
| Tandem Roller | BW 164 AD | 00810155 |
| Single Drum Roller | BW 212 D-2 | 00810687 |
| Tandem Roller | BW 161 AC-2 | 00817492 |
| Tandem Roller | BW 161 AD-2 | 00817493, 00817494 |
| Tandem Roller | BW 164 AC-2 | 00817495 |
| Tandem Roller | BW 202 AD-2 | 00817516, 00817517 |
| Tandem Roller | BW 202 AHD-2 | 00817518 |
| Walk-Behind / Light Roller | BW 65 S | 00817559, 00811405 |
| Tandem Roller | BW 164 AD-2 | 00817640 |
| Recycler / Stabilizer | MPH 125 | 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 | RS 500 | 00824753, 00824755 |
| Recycler / Stabilizer | RS 460 | 00824809, 00825187, 00825189 |
| Recycler / Stabilizer | RS 650 | 00825131 |
| Recycler / Stabilizer | RS460 STAGE V | 00825263 |
| 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 |
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.
