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- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 TURBO 2000-05
Standard-size crankshaft main bearing (No. 8), also referred to as bearing VIII. Main bearings support the crankshaft by providing a low-friction, precision bearing surface between the crankshaft journals and the engine block’s bearing bores.
Fits:
Porsche 911 1978 - 1989
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Porsche 996 Turbo 2000 - 2005
Diagram ref no 24.
The crankshaft main bearings carry the forces created as combustion pressures act on the pistons and connecting rods. They help:
• Maintain smooth engine rotation
• Prevent metal-to-metal contact
• Distribute loads across the crankshaft journals
• Preserve oil film integrity between moving parts
A standard-size bearing is used when the crankshaft journals are within factory tolerances. If journals are worn and undersizing is required, undersized bearings would be selected instead.
Crankshaft main bearings are subjected to extreme rotational forces, pressure, heat, and oil shear. Over time bearings can:
• Wear down and lose oil film thickness
• Develop scoring or surface fatigue
• Lose proper clearances
Symptoms of worn main bearings can include:
• Knocking or rattling noises from the engine
• Reduced oil pressure
• Increased vibration
• Premature wear of crankshaft journals
Replacing worn or damaged bearings restores correct oil clearances, improves crankshaft support, reduces friction, and helps ensure reliable engine performance - especially critical in high-boost turbocharged engines where bearing loads are higher.
Replace this bearing if you notice:
• Engine knocking or abnormal noises
• Low oil pressure or pressure fluctuation
• High mileage and engine teardown for rebuild
• During complete engine overhaul or rebuild
• When journal wear necessitates standard or undersized bearing selection
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410113801
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
- Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
- Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
- Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
- Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
- Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
- Porsche 970.2 Panamera Turbo V8 Executive 2014-16
- Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
Identification: Yellow
Fits:
Porsche 957 Cayenne 4.8L 2007-2010
(engine codes M48.01 / M48.51)
Porsche 958 Cayenne Turbo 4.8L 2011-2018
(engine codes M48.52)
Porsche 95B Macan Turbo 3.6L 2014-2018
(engine codes CTLA / CTL / DHKA / DHK)
Porsche 970 Panamera Turbo 4.8L 2011-2016
(engine codes M48.70 / CWBA / CWB)
Click 'Zoom in' for large parts diagram.
Diagram ref no 10
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94610335404
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:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PLA007
The product you are viewing cross references to these numbers
