The Bomag 05850366 Hydraulic Cylinder is a genuine OEM component designed for Bomag BM 500/15 and BM 600/15 cold milling machines, including EU-Flex, Stage V, T4i, P8, and second-generation (-2) variants. Sourced directly from Bomag, this hydraulic cylinder matches the original equipment specification for a straight drop-in installation. It is compatible across the full BM 500/15 and BM 600/15 model range, making it the correct choice whether you are servicing an earlier build or a current-generation machine.
Key Features
- Genuine OEM Hydraulic Integrity — manufactured to Bomag's original bore, stroke, and seal-seat tolerances, ensuring full operating pressure capacity without bypass or leak risk
- Direct Replacement Fit — matches the original mounting geometry and port configuration for the BM 500/15 and BM 600/15, installing into the existing bracket and hydraulic lines without rework
- Broad Model Coverage — fits BM 500/15, BM 500/15 EU-Flex, BM 500 15 P8, BM 500/15 Stage V, BM 500/15-2, BM 600/15, BM 600/15 EU-Flex, BM 600/15 EU-Flex T4i, BM 600/15 Stage V, BM600 /15, and BM 600/15-2 cold milling machines
- Cutting Drum Positioning Accuracy — a correctly functioning hydraulic cylinder maintains precise drum depth control; a worn or leaking cylinder causes inconsistent milling depth and loss of surface profile quality
- Verified Part Number — order with confidence using Bomag part number 05850366 to confirm you receive the exact cylinder specified for your machine
The hydraulic cylinder on a cold milling machine controls the vertical positioning of the cutting drum, allowing the operator to set and hold precise milling depths across the full working pass. It works within the machine's hydraulic circuit to raise and lower the drum assembly under load, and maintains that position against ground reaction forces during operation. When the cylinder develops internal leakage or seal failure, the drum loses consistent depth control — resulting in uneven surface profiles, increased rework, and potential damage to adjacent machine components.
Part Details
| Part Number | 05850366 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Hydraulic Cylinder |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Cold Milling Machine | BM 600/15 | 00818099, 00818175 |
| Cold Milling Machine | BM 500/15 | 00818173, 00818873, 00824553 |
| Cold Milling Machine | BM 500/15 EU-Flex | 00824539 |
| Cold Milling Machine | BM 500 15 P8 | 00824743 |
| Cold Milling Machine | BM600 /15 | 00824745 |
| Cold Milling Machine | BM 600/15 EU-Flex | 00824943 |
| Cold Milling Machine | BM 600/15 EU-Flex T4i | 00825065 |
| Cold Milling Machine | BM 500/15 Stage V | 00825885 |
| Cold Milling Machine | BM 600/15 Stage V | 00825887 |
| Cold Milling Machine | BM 500/15-2 | 00826459 |
| Cold Milling Machine | BM 600/15-2 | 00826479 |
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.
