Bomag 05718091 Oil Separator

The Bomag 05718091 Oil Separator is a genuine OEM component designed for a wide range of Bomag heavy equipment, including BM 2000/60 and BM 2000/60-2 cold milling machines, BC-series refuse/landfill compactors and soil compactors, and MPH-series recyclers/stabilizers. Sourced directly from Bomag, this oil separator matches the exact design intent of the original, ensuring it integrates seamlessly with the engine crankcase ventilation system of each compatible machine. Compatible models span the BC 672 RB-2, BC 772 RB-2, BC 772 RS-2, BC 972 RB-2, BC 1172 RB-2, BC 672 EB-2, BC 772 EB-2, MPH 122-2, MPH 125, and MPH 600, making this a versatile service part for mixed Bomag heavy-equipment fleets.

Key Features

• Genuine OEM Crankcase Ventilation Integrity — manufactured by Bomag to the same separation efficiency and flow specifications as the original, preventing oil-laden blow-by gases from contaminating the air intake or turbocharger
• Direct Drop-In Replacement — mounts using the original attachment points and connections, so the service technician can swap the separator without adapters or rework
• Broad Fleet Coverage — a single part number 05718091 serves BM 2000/60 cold milling machines, BC 672 / BC 772 / BC 972 / BC 1172 refuse and landfill compactors, BC 672 EB-2 and BC 772 EB-2 soil compactors, and MPH 122-2, MPH 125, and MPH 600 recyclers/stabilizers
• Engine Protection Where It Counts — a properly functioning oil separator keeps separated oil returning to the sump and clean gases routed to intake, reducing internal carbon buildup and protecting injectors and valves on high-utilization heavy equipment
• Emissions and Engine Health Compliance — a failed oil separator can cause excessive crankcase pressure and oil consumption, contributing to exhaust smoke and potential emissions non-compliance; replacing with an OEM-spec unit restores correct crankcase pressure balance

The oil separator is part of the engine's crankcase ventilation system. Its job is to strip oil droplets and mist out of the blow-by gases that escape past the piston rings during normal combustion, returning the recovered oil to the sump and routing the cleaned gases back into the air intake. When the separator becomes clogged or fails, crankcase pressure builds up, oil consumption rises, and unfiltered oil vapor enters the intake — leading to carbon deposits, fouled intake components, and elevated exhaust smoke. On high-output machines like cold milling machines, refuse compactors, soil compactors, and recyclers/stabilizers that operate under sustained heavy load, keeping the crankcase ventilation system in good order is a straightforward way to protect a substantial engine investment.

Part Details

Compatibility & Fitment

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.