The Bomag 06421240 Star Knob is a genuine OEM component designed for a wide range of Bomag single drum rollers, tandem rollers, walk-behind rollers, pneumatic tyred rollers, and pavers — including BW-series models such as the BW 145 D-5, BW 177 D-5, BW 213 D-5, BW 216 D-5, and BW 226 DH-5, as well as BF-series pavers including the BF 600 P-3 S 500, BF 700 C-3 S 600, and BF 800 C-3 S 600. Sourced directly from Bomag, this star knob matches the original part in form and function, ensuring it seats and threads correctly without modification. Confirm fitment using part number 06421240 against your machine model before ordering.
Key Features
- Genuine OEM Construction — manufactured to Bomag's original design specifications, so this star knob delivers the correct grip geometry, thread engagement, and material durability expected of an authentic replacement
- Direct Drop-In Replacement — threads and interfaces match the original mounting point exactly, allowing straightforward installation on compatible Bomag rollers and pavers
- Broad Fitment Coverage — compatible with an extensive range of Bomag equipment, including BW-series single drum rollers, tandem rollers, walk-behind rollers, and BF-series pavers across multiple generation variants
- Secure Operator Control — a worn or cracked star knob can cause imprecise adjustments or slippage during operation; replacing it restores confident, repeatable hand-tightening control at the adjustment point it governs
- Verified Part Number Integrity — ordering by part number 06421240 ensures you receive the correct knob for your specific Bomag model, eliminating the risk of receiving an incompatible fastener or control knob
A star knob is a hand-operated fastener or adjustment control used to lock or secure a component in position without the need for tools. On Bomag rollers and pavers, star knobs are typically found at operator-adjustable points where quick, repeatable tightening is required — such as panel mounts, guard positions, or settings controls. The knob's multi-lobe profile allows firm finger-tightening torque without a wrench. When the knob becomes stripped, cracked, or broken, the operator loses the ability to securely lock the associated component, which can lead to unwanted movement or misalignment during machine operation. Replacing a damaged star knob promptly restores proper adjustment and control at that interface.
Part Details
| Part Number | 06421240 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Star Knob |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Paver | BF 600 P-2 S 500 | 00800865, 00825913 |
| Paver | BF 700 C-2 S 600 | 00800867 |
| Paver | BF 700 C-2 S 500 | 00800869 |
| Paver | BF 800 C S500 | 00800871 |
| Paver | BF 800 C S600 | 00800873 |
| Paver | BF 800 P S500 | 00800879 |
| Single Drum Roller | BW 177 D-3 | 00815310, 00817503 |
| Single Drum Roller | BW 213 D-3 | 00815320, 00815329, 00815390, 00817522, 00817523, 00817588 |
| Single Drum Roller | BW 213 DH-3 | 00815322, 00817526, 00817527, 00817528, 00817589 |
| Single Drum Roller | BW 216 D-3 | 00815340, 00817214, 00817535 |
| Single Drum Roller | BW 178 D-3 | 00815515 |
| Single Drum Roller | BW 145 D-3 | 00817479, 00817637 |
| Single Drum Roller | BW 145 DH-3 | 00817481, 00817638 |
| Single Drum Roller | BW 145 PDH-3 | 00817483, 00817639 |
| 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 |
| Single Drum Roller | BW 177 DH-3 | 00817505, 00817751 |
| Single Drum Roller | BW 177 DH 3 | 00817506 |
| Single Drum Roller | BW 177 PDH-3 | 00817508 |
| Tandem Roller | BW 180 AD | 00817513 |
| Tandem Roller | BW 184 AD | 00817514 |
| Single Drum Roller | BW211D 3 | 00817520, 00817581, 00817649 |
| Single Drum Roller | BW212D 3 | 00817521 |
| Single Drum Roller | BW 213 PDH-3 | 00817529, 00817530, 00817590 |
| Single Drum Roller | BW 214 DH-3 | 00817532, 00817592 |
| Single Drum Roller | BW 216 DH-3 | 00817537 |
| Single Drum Roller | BW 219 DH-3 | 00817540 |
| Single Drum Roller | BW 219 PDH-3 | 00817544 |
| Single Drum Roller | BW 225 D-3 | 00817546, 00817548 |
| Single Drum Roller | BW 225 | 00817549 |
| Single Drum Roller | BW145D 3 | 00817576, 00817927 |
| Single Drum Roller | BW145PDH 3 | 00817577 |
| Single Drum Roller | C 825 C | 00817578 |
| Single Drum Roller | BW177PDH 3 | 00817579 |
| Single Drum Roller | BW177DH-3 | 00817580 |
| Single Drum Roller | C 850 C | 00817583 |
| Single Drum Roller | BW177D-3 | 00817586 |
| Single Drum Roller | BW 213 DH 3 VARIOCONTOL | 00817591, 00817605 |
| Tandem Roller | BW 184 AD-2 AM | 00817600 |
| Single Drum Roller | BW 216 DHC-3 | 00817643, 00817644 |
| Tandem Roller | BW 174 AD-2 AM | 00817693 |
| Tandem Roller | BW 174 AD-2 | 00817695 |
| Tandem Roller | BW 154 AD-4 AM | 00817699, 00818447 |
| Tandem Roller | BW 174 AC-2 | 00817712 |
| Tandem Roller | BW 174 AC-2 AM | 00817714 |
| Tandem Roller | BW 170 AD-2 AM | 00817716 |
| Tandem Roller | BW 190 AD-4 AM | 00817825, 00818309, 00824021 |
| Tandem Roller | BW 203 AD-4 AM | 00817837, 00818591, 00824019 |
| Tandem Roller | BW 184 AD-2 | 00817841 |
| Single Drum Roller | BW 212 D-30 | 00817907 |
| Tandem Roller | BW 151 AD-4 AM | 00817913, 00818555, 00824017 |
| Tandem Roller | BW 141 AD-4 AM | 00817925, 00818553 |
| Single Drum Roller | BW 145-DH-3 | 00817929 |
| Tandem Roller | BW 151 AC-4 AM | 00817953, 00818559, 00824025 |
| Single Drum Roller | BW145DH 40 | 00818323, 00818939, 00818941 |
| Single Drum Roller | BW 145 DH 40 BW 145 DH 4 | 00818325 |
| Single Drum Roller | BW 145 PDH 40 BW145 PDH 4 | 00818327 |
| Single Drum Roller | BW145D 40 | 00818935, 00818937 |
| Single Drum Roller | BW145PDH 40 | 00818943 |
| Single Drum Roller | BW 177 D-5 | 00824351, 00824913, 00824915, 00825433, 00825725, 00825839, 00826625, 00826773 |
| Single Drum Roller | BW 145 D-5 | 00824357, 00825003, 00825427, 00825837, 00826053, 00826623, 00826771 |
| Tandem Roller | BW 203 AD-4 AM EU-Flex | 00824397 |
| Single Drum Roller | BW 145 DH-5 | 00824471, 00825721 |
| Single Drum Roller | BW 145 PDH-5 | 00824473, 00825723 |
| Single Drum Roller | BW 177 DH-5 | 00824475, 00824917, 00825435, 00825727 |
| Single Drum Roller | BW 177 PDH-5 | 00824477, 00825437, 00825729 |
| Single Drum Roller | BW 177BVC-5 | 00824479 |
| Single Drum Roller | BW 211 D-5 | 00824571, 00824859, 00825241, 00826057, 00826575, 00826929, 00826931 |
| Single Drum Roller | BW 211 DH-5 | 00824573, 00826559, 00826905 |
| Single Drum Roller | BW 213 DH-5 | 00824575, 00824863, 00825983 |
| Single Drum Roller | BW 213 | 00824577, 00825991 |
| Single Drum Roller | BW 216 D-5 | 00824579, 00824869, 00825277, 00825993 |
| Single Drum Roller | BW 219 DH-5 | 00824581, 00824875, 00825223, 00825701, 00825851 |
| Single Drum Roller | BW 226-5 | 00824583, 00824883, 00825717 |
| Single Drum Roller | BW 211 PDH-5 | 00824725, 00826563 |
| Single Drum Roller | BW 212 DH-5 | 00824727, 00826913 |
| Single Drum Roller | BW213DH P-5 | 00824729, 00825989 |
| Single Drum Roller | BW 213 PDH-5 | 00824731, 00825275, 00825985 |
| Single Drum Roller | BW 213-5 | 00824733, 00824867, 00825987 |
| Pneumatic Tyred Roller | BW 11 RH-5 | 00824749, 00824939, 00824993, 00825667 |
| Single Drum Roller | BW 213 D-5 | 00824761, 00824861, 00825271, 00826071, 00826917 |
| Single Drum Roller | BW 212 D-5 | 00824811 |
| Single Drum Roller | BW 214 D-5 | 00824813, 00826359 |
| Single Drum Roller | BW 226 DH-5 | 00824815, 00824881 |
| Single Drum Roller | BW 226 DI-5 | 00824817, 00824975, 00825711 |
| Single Drum Roller | BW 226 RC-5 | 00824819 |
| Single Drum Roller | BW 216 DH-5 | 00824825, 00825997 |
| Single Drum Roller | BW 216 PDH-5 | 00824827 |
| Single Drum Roller | BW 219 D-5 | 00824829, 00824873, 00825219, 00825699, 00825849 |
| Single Drum Roller | BW 219-5 | 00824831, 00826787 |
| Single Drum Roller | BW 211 PD-5 | 00824841, 00825269, 00826561 |
| Single Drum Roller | BW 216 PD-5 | 00824845, 00824871 |
| Single Drum Roller | BW 219 PDH-5 | 00824849, 00824879, 00825705, 00825853 |
| Single Drum Roller | BW 226 PDH-5 | 00824851, 00825229 |
| Single Drum Roller | BW 219 PD-5 | 00824877, 00825703 |
| Single Drum Roller | BW 177-5 | 00825731 |
| Paver | BF 600 C-2 S 600 | 00825903 |
| Paver | BF 600 P-2 S 600 | 00825915 |
| Paver | BF 600 P-3 S 500 | 00826343, 00826971 |
| Paver | BF 700 C-3 S 500 | 00826351 |
| Walk-Behind / Light Roller | BW 65 D | 00826393, 00826685, 00826331 |
| Walk-Behind / Light Roller | BW 65 | 00826395 |
| Paver | BF 800 C-3 S 600 | 00826407 |
| Single Drum Roller | BW 145 D-5 PL | 00827061, 00827069 |
| Single Drum Roller | BW 177 PDH-5 PL | 00827075 |
| Single Drum Roller | BW 177 DH-5 PL | 00827077, 00827377 |
| Single Drum Roller | BW 177 D-5 PL | 00827081, 00827083, 00827087, 00827375 |
| Single Drum Roller | BW 213 D-5 PL | 00827113 |
| Paver | BF 700 C-3 S 600 | 00827127 |
| Single Drum Roller | BW 211 D-5 PL | 00827237, 00827249 |
| Single Drum Roller | BW 211 DH-5 PL | 00827239, 00827251 |
| Single Drum Roller | BW 211 PD-5 PL | 00827241 |
| Single Drum Roller | BW 211 PDH-5 PL | 00827243 |
| Single Drum Roller | BW 212 DH-5 PL | 00827259 |
| Single Drum Roller | BW 213-5 PL | 00827273 |
| Single Drum Roller | BW 213 DH | 00827275 |
| Single Drum Roller | BW 213 DH-5 PL | 00827277 |
| Single Drum Roller | BW 213 PDH-5 PL | 00827279 |
| Single Drum Roller | BW 216 D-5 PL | 00827281 |
| Single Drum Roller | BW 216 PDH-5 PL | 00827287 |
| Single Drum Roller | BW 219 D-5 PL | 00827291 |
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.
