Bearing Shell, 0.50 mm Inner Undersize. Porsche 356 / 356A / 356B / 356C / 912  ›  61610314262

Big End Bearing Shell, 0.50 mm Inner Undersize
Sold each - 8 required per car

This replacement big end bearing shell is designed for Porsche 356 and 912 engines with a crankshaft that has been reground to the corresponding 0.50 mm undersize specification.

Fits:

• Porsche 911 1965-1968 912 SWB (F)
• Porsche 356 1950-55
• Porsche 356A 1955-59
• Porsche 356B 1959-63
• Porsche 356C 1963-65

The bearing provides a low-friction surface between the connecting rod and crankshaft journal, helping maintain correct oil clearance and protect internal engine components.

What Does It Do?

The big end bearing supports the connecting rod on the crankshaft journal, allowing smooth rotation while maintaining a protective film of engine oil between moving surfaces.

Why Does It Fail?

Common causes include:

• Insufficient oil pressure or lubrication
• Contaminated engine oil
• Excessive engine wear
• Incorrect bearing clearance
• Engine overheating

When Should It Be Replaced?

Replace during an engine rebuild when the existing bearings show scoring, excessive wear or damage.

A 0.50 mm undersize bearing is required only when the crankshaft journals have been machined to the corresponding specification.

Checks & Installation

Measure crankshaft journal dimensions and bearing oil clearances before installation.

Inspect the connecting rods, crankshaft surfaces and oil passages for wear or damage. Installation should follow Porsche engine rebuilding specifications.

Key Features

• Replacement connecting rod big end bearing shell
• Porsche reference 61610314262 0.50 mm inner undersize
• Suitable for specified Porsche 356 and 912 engines
• Supports correct crankshaft lubrication
• Sold individually – 8 shells required per engine

Porsche 356 & 912 Big End Bearings and Engine Rebuild Parts

Big end bearing shells are essential components of the Porsche 356 and 912 flat-four engine, supporting the connecting rods and protecting crankshaft journals from metal-to-metal contact.

Selecting the correct bearing size is critical when rebuilding an engine with a reground crankshaft.