Rein ABH0334 Engine Oil Separator - Lower

OE-Style Breather Valve Replacement

Rein ABH0334 is a standard replacement engine oil separator for European applications that need an OE-quality breather valve service part. It is built as a direct replacement with the same general form and function as the original BMW component.

Compatible With BMW 540i, 740i, 740iL, 840Ci, and 530i applications across the listed model years, this part number ABH0334 supports lower-position fitments where the factory breather valve is used.

Key Features

• Standard replacement engine oil separator
• OE-quality breather valve construction
• Direct replacement format for factory-style service
• Designed for lower-position BMW applications listed below
• Cross-reference: BMW 11151747066

Fitment Details

• Fits 1999 BMW 540i, Lower, to 9/98
• Fits 1997-1998 BMW 540i, Lower
• Fits 1994-1995 BMW 540i, Lower
• Fits 1999 BMW 740i, Lower, to 9/98
• Fits 1997-1998 BMW 740i, Lower
• Fits 1993-1995 BMW 740i, Lower
• Fits 1999 BMW 740iL, Lower, to 9/98
• Fits 1993-1998 BMW 740iL, Lower
• Fits 1994-1997 BMW 840Ci, Lower
• Fits 1994-1995 BMW 530i, N/A

Common Uses

• Replacing a worn or failed breather valve
• Restoring crankcase ventilation function
• Addressing oil separator service needs on BMW engines
• Correcting fitment issues with an incorrect aftermarket part
• Servicing lower-position engine ventilation components

Installation Notes

Verify the vehicle year, model, and position before ordering, especially on 1999 BMW 540i, 740i, and 740iL applications noted as “to 9/98.” Compare the original part number and mounting location to confirm the correct lower-position replacement. Part number ABH0334 is intended for direct replacement use in the listed BMW applications.

Quality Assurance

Rein Automotive supplies OE-quality replacement parts for European vehicles, with this breather valve engineered to match the original manufacturer’s service part approach. ABH0334 is a standard replacement built for factory-style fit and function.