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1 set of crankshaft bearings Genuine Porsche part 54610190150

Code: 54610190150

Genuine Porsche part

1 set of crankshaft bearings

The product code 54610190150 was also found on these diagrams

102-005 - set of crankshaft bearings undersize inner 0,25 mm comprising:

Crankshaft (Model: 1300, 1300 S, 1500, 1500 S, 1600, 1600 S) 356, 356A 1950-1959

102-000 - set of crankshaft bearingsundersize inner 0,25 mm comprising:

Crankshaft (Model: 1600-SC) 356B / 356C 1960-1965

Additional information:

• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.

Before purchasing thoroughly check part to confirm compatibility.

Related products

Main crankshaft bearing set Standard. Porsche 356A / 356B

54610190100/1

Product Information

Main Crankshaft Bearing Set, Standard.
The OE Match Main Crankshaft Bearing Set, Standard is a premium-quality replacement engine bearing kit designed to support the crankshaft and maintain precise rotational alignment in compatible Porsche engines. Manufactured to OE specifications for fit, material quality and durability, this standard-size main bearing set restores the correct bearing clearances between the crankshaft and engine block, ensuring optimum oil pressure, smooth crankshaft rotation and long-term engine reliability.

Fits:

Porsche 356A 1955-59
Porsche 356B 1959-63

Diagram Ref No 13

Manufactured from premium tri-metal bearing materials with a precision-machined bearing surface, each bearing shell is engineered to provide exceptional load-carrying capacity, low friction characteristics and excellent resistance to wear under demanding operating conditions. Designed for direct OE-style installation, this standard-size bearing set is ideal for engine rebuilds where the crankshaft journals remain within original factory specifications.

What This Product Does:

Supports the crankshaft within the engine block.
Maintains precise crankshaft bearing clearances.
Allows smooth, low-friction crankshaft rotation.
Maintains correct engine oil pressure.
Reduces friction and wear between the crankshaft and engine block.
Supports reliable engine lubrication.
Restores factory engine operating tolerances.
Forms an essential part of the engine bottom-end assembly.

Symptoms Of Wear Or Failure:

Low engine oil pressure.
Knocking or rumbling noises from the lower engine.
Excessive crankshaft movement.
Metal particles present in the engine oil or oil filter.
Increased engine vibration.
Accelerated wear of the crankshaft journals.
Poor lubrication of internal engine components.
Engine overheating due to increased friction.
Loss of engine performance.
Catastrophic engine failure in severe cases.

Why Replacement Matters:

The main crankshaft bearings support the crankshaft while maintaining a thin film of pressurised engine oil between the bearing surface and the crankshaft journals. They are subjected to enormous combustion loads, constant rotational forces and continuous lubrication. Over time, normal wear, contamination or insufficient lubrication can damage the bearing surfaces, increasing bearing clearances and reducing oil pressure.
Worn main bearings can lead to excessive crankshaft movement, reduced lubrication efficiency and accelerated wear of critical engine components. If left unresolved, bearing failure can result in severe crankshaft damage and complete engine failure.
Replacing worn bearings with the OE Match Main Crankshaft Bearing Set restores the engine's bottom-end integrity, correct bearing clearances and stable oil pressure. Manufactured to OE standards using premium tri-metal bearing construction, this standard-size bearing set provides factory-style fitment, exceptional durability and dependable long-term performance, making it the ideal choice for Porsche engine rebuilds and professional restoration projects.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

54610190100

54610190100

313 09 325

The product you are viewing cross references to these numbers

Main bearing set, 50mm crank. Porsche 356A / 356B 1600 / S

54610190185/1

Product Information

OE Match main bearing set for Porsche 356A / 356B 1600 / S engines with a 50mm crank. This version combines a 0.25mm outer oversize with a 0.75mm inner undersize.

Fits

Porsche 356A / 356B 1600 / S

Diagram Ref No 29

What This Product Does
The main bearings provide the supporting interface between the crankshaft journals and the crankcase. Working with the engine lubrication system, they accommodate crankshaft rotation and distribute operating loads. Correctly selected dimensions are essential to establishing the specified running clearance during an engine rebuild.

Functions

Support the crankshaft within its crankcase mounting positions.
Provide a bearing surface for lubricated journal rotation.
Distribute forces transmitted through the crankshaft.
Help establish the required oil clearance when matched to measured components.

Technical Details

Supplied part reference: 54610190185.
Crank specification: 50mm.
Crankcase fit: first oversize, 0.25mm outer.
Crankshaft fit: third undersize, 0.75mm inner.
Internal diagram application identifies 1600 / S engines.
Brand: OE Match.

Symptoms of Fault

Rumbling or knocking from the engine, particularly under load.
Reduced oil pressure, including pressure falling as the engine warms.
Metallic particles found during oil or filter inspection.
Scoring or uneven wear discovered on dismantled bearing surfaces.

These findings require diagnosis rather than confirming a bearing fault on their own. Lubrication problems, contamination and worn crankshaft journals should be investigated before new bearings are installed.

Why Replacement Matters
Renewing worn main bearings forms part of rebuilding the crankshaft support assembly. The replacement dimensions must suit both the crankcase housing and the crankshaft journals; choosing by vehicle model alone is insufficient. Inspect the supporting components and investigate any previous lubrication failure before reassembly to reduce the likelihood of recurring damage.

FAQs

Is this a standard-dimension set?
No. It is specified with 0.25mm outer oversize and 0.75mm inner undersize dimensions.

What needs measuring before installation?
Check the crankshaft journals, crankcase bearing housings and resulting oil clearances against the applicable engine specifications.

Does low oil pressure prove the bearings are worn?
No. Bearing wear is one possible cause; the lubrication system and the condition of related components also need assessment.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

54610190185

313093310322

54610190185

The product you are viewing cross references to these numbers

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1 set of crankshaft bearings Genuine Porsche part 54610190150