The Bomag 09190503 Woodruff Key is a genuine OEM component designed for a wide range of Bomag BW-series walk-behind rollers, tandem rollers, single drum rollers, pneumatic tyred rollers, and MPH-series recyclers/stabilizers. As a direct OEM replacement, this Woodruff Key is manufactured to the same specifications as the original, ensuring a proper fit in every application it was engineered for. Compatible machines include the BW 75 AD, BW 75 ADL, BW 75 AD-2, BW 900 AD, BW 900-2, BW 900-50, BW 120 AD, BW 213 D, BW 172 D-2, BW 12 R, and MPH 121, MPH 122, MPH 122-2, MPH 600, and MPH 600 3B/4i-PB, among many others across the BW lineup. Order with confidence knowing part number 09190503 matches the original Bomag specification exactly.
Key Features
- Genuine OEM Shaft-Keying Precision — Manufactured to original Bomag tolerances, this Woodruff Key seats correctly in its keyway without play, ensuring reliable torque transfer between shaft and hub.
- Direct Drop-In Replacement — This key installs into the existing keyway slot without machining or modification, matching the original profile, radius, and depth of the factory component.
- Broad Bomag Fleet Coverage — Fits a large cross-section of Bomag equipment including BW tandem rollers, walk-behind rollers, single drum rollers, the BW 12 R pneumatic tyred roller, and MPH 121, MPH 122, MPH 122-2, MPH 600, and MPH 600 EU-FLEX recyclers/stabilizers.
- Protects Drive Components — A correctly fitted Woodruff Key prevents shaft-to-hub slippage that would otherwise cause rapid wear on both the shaft and the mating component, protecting costlier drivetrain parts downstream.
- Verified Bomag Part Number — Sourced directly from Bomag's OEM supply chain; part number 09190503 is the exact reference used in Bomag's own parts catalog for these machines.
A Woodruff Key is a small semicircular metal key that fits into a matching keyway milled into a shaft, locking a gear, pulley, or sprocket in place so it rotates with the shaft rather than spinning freely on it. This tiny component plays a critical role in drivetrain integrity — it transmits torque and prevents relative rotation between mating parts under load. When a Woodruff Key shears, wears, or goes missing, the driven component loses its positive connection to the shaft, causing slippage, vibration, loss of drive, and accelerating damage to the shaft and hub surfaces.
Part Details
| Part Number | 09190503 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Woodruff Key |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Walk-Behind / Light Roller | BW 75 ADL | 00810017 |
| Tandem Roller | BW 120 AD | 00810019, 00810051 |
| Single Drum Roller | BW 213 D | 00810062, 00814209 |
| Single Drum Roller | BW 172 D-2 | 00810074 |
| Single Drum Roller | BW 124 D | 00810079 |
| Tandem Roller | BW 90 AD | 00810081 |
| Tandem Roller | BW 138 AD | 00810105, 00810191, 00817473, 00818359 |
| Tandem Roller | BW 135 AD | 00810120, 00817471, 00818357 |
| Tandem Roller | BW 80 AD-2 | 00810280, 00817566 |
| Tandem Roller | BW 90 AD-2 | 00810281, 00817569, 00818041, 00818507 |
| Pneumatic Tyred Roller | BW 12 R | 00813711 |
| Tandem Roller | BW 100 AC-3 | 00817457 |
| Tandem Roller | BW 100 AD-3 | 00817458 |
| Tandem Roller | BW 100 ADM-2 | 00817459 |
| Tandem Roller | BW 120 AC-3 | 00817462 |
| Tandem Roller | BW 120 AD-3 | 00817463, 00817831, 00817833 |
| Tandem Roller | BW 125 ACH | 00817466 |
| Tandem Roller | BW 125 ADH | 00817467 |
| Tandem Roller | BW 131 ACW-2 | 00817468 |
| Tandem Roller | BW 131 AD-2 | 00817469 |
| Tandem Roller | BW 135 AC | 00817470 |
| Tandem Roller | BW 138 AC | 00817472, 00818361 |
| Tandem Roller | BW 141 AD-2 | 00817474 |
| Tandem Roller | BW 144 AD-2 | 00817477, 00817478 |
| Tandem Roller | BW 151 AC-2 | 00817485 |
| Tandem Roller | BW 151 AD-2 | 00817486 |
| Tandem Roller | BW 154 AD-2 | 00817490, 00817491, 00817599 |
| 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 170 AD | 00817498 |
| Tandem Roller | BW 174 AC | 00817499 |
| Tandem Roller | BW 174 AC AM | 00817500 |
| Tandem Roller | BW 174 AD | 00817501 |
| Tandem Roller | BW 174 AD AM | 00817502 |
| Tandem Roller | BW 180 AD | 00817513 |
| Tandem Roller | BW 184 AD | 00817514 |
| Tandem Roller | BW 202 AD-2 | 00817516, 00817517 |
| Tandem Roller | BW 202 AHD-2 | 00817518 |
| Walk-Behind / Light Roller | BW 75 AD-2 | 00817563, 00811410 |
| Tandem Roller | BW 80 ADS | 00817567, 00818513 |
| Tandem Roller | BW 90 AC-2 | 00817568, 00818045 |
| Tandem Roller | BW 900 AD | 00817570 |
| Tandem Roller | BW120AD 3 | 00817571 |
| Tandem Roller | BW 138-AD | 00817572, 00818389 |
| Tandem Roller | BW141AD 2 | 00817573 |
| Recycler / Stabilizer | MPH 121 | 00817587 |
| Recycler / Stabilizer | MPH 122 | 00817595 |
| Tandem Roller | BW 184 AD-2 AM | 00817600 |
| Tandem Roller | BW 164 AD-2 | 00817640 |
| Tandem Roller | BW 100 AD-4 | 00817685, 00818465 |
| Tandem Roller | BW 100 AC-4 | 00817687, 00818467, 00818731 |
| Tandem Roller | BW 120 AD-4 | 00817689, 00818377, 00818469, 00818477, 00818593 |
| Tandem Roller | BW 120 AC-4 | 00817691, 00818471, 00818597 |
| Tandem Roller | BW 174 AD-2 AM | 00817693 |
| Tandem Roller | BW 174 AD-2 | 00817695 |
| Tandem Roller | BW 174 AC-2 | 00817712 |
| Tandem Roller | BW 174 AC-2 AM | 00817714 |
| Tandem Roller | BW 170 AD-2 AM | 00817716 |
| Walk-Behind / Light Roller | BW 900-2 | 00817821, 00818363 |
| Tandem Roller | BW 184 AD-2 | 00817841 |
| Tandem Roller | BW120 AD-3 | 00817849 |
| Tandem Roller | BW 125 AD-4 | 00817937, 00818473 |
| Recycler / Stabilizer | MPH 122-2 | 00818177, 00818727, 00818911, 00824987 |
| Tandem Roller | BW 125 AC-4 | 00818271, 00818475 |
| Tandem Roller | BW120AD 4 | 00818595, 00818871 |
| Tandem Roller | BW 115 AC-3 | 00818693 |
| Tandem Roller | BW 115 AD-3 | 00818695 |
| Tandem Roller | BW 131 ACW-3 | 00818697 |
| Tandem Roller | BW 131 AD-3 | 00818699 |
| Walk-Behind / Light Roller | BW 900-50 | 00818921 |
| Recycler / Stabilizer | MPH 600 | 00824099 |
| Recycler / Stabilizer | MPH 600 3B/4i-PB | 00824645 |
| Recycler / Stabilizer | MPH 600 EU-FLEX | 00824751 |
| Walk-Behind / Light Roller | BW 75 AD | 00810032, 00810132, 00811566 |
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.
