Pierburg 7.31111.03.0 Engine Oil Pump

Pierburg Engine Oil Pump for Porsche

Pierburg Engine Oil Pump 7.31111.03.0 is a standard replacement oil pump built for consistent oil delivery and OE-grade durability. It is a direct-fit service part for select Porsche 911 and Porsche Boxster applications, including models that require a main oil pump with seal and adapter.

Genuine OE from HELLA identifies this product line as an OE-focused replacement option for drivers and technicians who want factory-style fit and function. The Pierburg 7.31111.03.0 is engineered for demanding operating conditions and steady lubrication performance.

Key Features

• Standard replacement engine oil pump
• Includes seal
• Includes adapter
• OE-grade durability for routine engine service
• Fits select Porsche 911 and Porsche Boxster applications
• Part number: 7.31111.03.0

Detailed Description

This Pierburg engine oil pump is built to maintain consistent oil flow through the lubrication system, helping support smooth engine operation in Porsche 911 and Porsche Boxster models. The OE-focused design and included seal and adapter make it a practical replacement for service work where correct fitment and reliable oil circulation matter. Part number 7.31111.03.0 is listed for multiple Porsche applications, including 1997-2004 Porsche Boxster, 1999-2004 Porsche 911, 2005-2008 Porsche 911, and 2009-2010 Porsche 911.

This part cross-references Porsche OE numbers 99610701258 and 99610701261 for the same application.

What It Helps Address

• Low or inconsistent oil pressure caused by a worn pump
• Reduced lubrication flow in high-mileage engines
• Oil system service needs during engine repair
• Replacement of a failed main oil pump on select Porsche 911 models
• Replacement of a worn oil pump on select Porsche Boxster models

Installation Notes and Tips

• Verify engine code and OE number before ordering.
• Confirm the vehicle matches the listed Porsche 911 or Porsche Boxster fitment.
• Replace the seal during installation, as this pump includes one.
• Use the included adapter where required by the application.
• Clean mating surfaces and inspect the lubrication system before reassembly.

Quality Assurance

Pierburg and Genuine OE from HELLA indicate an OE-oriented product line focused on factory-style replacement standards and dependable performance for professional repair use.