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Main Bearing set. Porsche 356C / 912 - 0.50 case oversize ❭ 616100138
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356C 1963-65
Oversize: 0.50 mm Case
Restore correct crankshaft support, oil clearance, and dependable engine operation with this OE Match Set of Main Bearings for Porsche 356C and Porsche 912, available under references 61610013895A, 61610013895AO1, 616100138100A, and 61610013890A.
Engine: Porsche 356C and 912
Sizes available: in "MM"
0.50mm Case / STD Crank
0.50mm Case / STD Crank / Thrust +1mm
0.50mm Case / 0.25mm Crank
0.50mm Case / 0.25mm Crank / Thrust +1mm
0.50mm Case / 0.50mm Crank
Please Pick size when ordering below:
Main bearings are precision internal engine components located between the crankshaft main journals and the engine crankcase. Their purpose is to support the crankshaft while allowing it to rotate smoothly on a controlled film of pressurised engine oil. Correct bearing clearances are essential for maintaining lubrication, controlling crankshaft movement, reducing friction, and protecting the crankshaft and crankcase from excessive wear.
What This Product Does:
- Supports the crankshaft within the engine crankcase.
- Provides a precision running surface for the crankshaft main journals.
- Allows the crankshaft to rotate smoothly on a lubricating oil film.
- Helps maintain correct crankshaft alignment.
- Controls radial crankshaft movement.
- Helps control crankshaft end float where applicable.
- Reduces direct metal-to-metal contact and friction.
- Supports correct engine oil clearances and lubrication.
- Protects crankshaft journals against excessive wear.
- Withstands substantial combustion and rotational loads.
- Replaces worn or damaged main bearings during an engine rebuild.
- Is intended for compatible Porsche 356C and Porsche 912 engine applications.
Symptoms Of Wear Or Failure:
- Low engine oil pressure.
- Oil pressure becoming particularly low when the engine is hot.
- Deep knocking or rumbling noises from the lower engine.
- Excessive crankshaft movement or end float.
- Metallic particles or bearing material in the engine oil.
- Metallic debris in the oil filter or strainer.
- Excessive main bearing clearance during engine inspection.
- Scoring or abnormal wear of the crankshaft journals.
- Scratched, pitted, or discoloured bearing surfaces.
- Evidence of bearing overheating or oil starvation.
- Uneven or accelerated crankshaft journal wear.
- Serious internal engine damage in advanced cases.
Why Replacement Matters:
- Main bearings are fundamental to the reliability of the engine because they support and locate the crankshaft every time the engine operates. Combustion forces place considerable loads on the crankshaft, and the bearings must maintain a precise lubricated clearance while allowing smooth rotation.
- As main bearings wear, the clearance between the bearing surface and crankshaft journal can increase. Excessive clearance can reduce oil pressure, increase crankshaft movement, and accelerate wear of both the bearings and crankshaft journals. This can eventually result in knocking, poor lubrication, and deterioration of other internal engine components.
- Severe bearing wear can cause the protective oil film to break down, resulting in direct metal-to-metal contact. This may generate excessive heat, score or damage the crankshaft, contaminate the lubrication system with bearing material, and potentially cause major engine failure.
- Correct bearing sizing is especially important when rebuilding a classic Porsche 356C or Porsche 912 engine. Previous crankshaft grinding or crankcase machining can change the required bearing dimensions, meaning a standard-size bearing set may no longer provide the correct running clearance.
- Replacing worn components with the correctly sized OE Match Main Bearing Set – 61610013895A, 61610013895AO1, 616100138100A, or 61610013890A – for Porsche 356C / 912 helps restore correct crankshaft support, oil clearance, lubrication, and dependable engine performance.
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616100138
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- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
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- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
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- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
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- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
- Porsche 992.1 Carrera 2 3.0L 2019-24
- Porsche 992.1 Carrera 4 3.0L 2019-24
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- Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
- Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
- Porsche 992.1 Targa 4 3.0L 2020-24
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- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)

Fits:
Porsche 996 3.6L 2002-04 engines M96.03
Porsche 997 2005-08 3.6L / 3.8L engines M97.01 / M96.05
Porsche 997.2 2009-12 3.6L / 3.8L engines MA1.01 / MA1.02
Porsche 997.2 Turbo 2010-13 3.8L engines MA1.70
Porsche 987 Boxster S 3.4L >>2006 engines M97.21 / M97.22 (RS SPYDER)
Porsche 987.2 Boxster 2.9L 2009-2012 engines MA1.20
Porsche 987.2 Boxster S 3.4L 2009-2012 engines MA1.21
Porsche 987C Cayman S 2006-08 engines M97.21 / M97.22
Porsche 987C.2 Cayman 2009-12 engines MA1.20
Porsche 987C.2 S Cayman 2009-12 engines MA1.21
Porsche 981 Boxster 2012-2016 engines MA1.22 / MA1.23 / MDB.XA (Spyder)
Porsche 982 Boxster 2017-2021 engines MDD.PA / MDD.PB / MDD.NC
Porsche 981C Cayman 2014-2016 engines MA1.22 / MA1.23
Porsche 981 Cayman GT4 2016 engines MDB.XA
Porsche 982C Cayman 2017-2021 engines MDD.PA / MDD.PB / MDD.NC
Porsche 991 2012-16 engines MA1.03 / MA1.04 / MAB.03 / MAB.04
Porsche 991 Turbo 2014-16 engines MA1.71
Porsche 991 GT3 2014-16 engines MA1.75 / MA1.76
Porsche 991.2 2017-19 engines MDC.HA / MDC.H / MDC.JA / MDC.J / MDC.KA / MDC.K
Porsche 991.2 Turbo / GT2 2017-19 engines MDA.BA / MDB.CA / MDA.B / MDB.C / MDH.NA / MDB.CB
Porsche 992 2019-21 3.0L engines MDKC / MDKCA / MDKK / MDKKA
Click picture for large parts diagram.
Diagram Ref No 24.
Related reference numbers
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0PB105638
The product you are viewing cross references to these numbers
100 Plasigauge strips per box

PLASTIGAUGE PL-A is widely used in the measurement of clearance in plain automotive bearings. Measurement of clearance in big-end bearings can be achieved without dismantling the crankshaft.
For measurements of: 0.001″ to 0.007″ (0.025mm – 0.175mm)
Suitable for use at temperatures between 0°C and 35°C
Contents:
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PLA007
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