Engine Bearings / Shells

Big End Conrod Bearing. Standard Size
Supplied as SET OF 12

Fits:
Porsche 911 - 1984 to 1989
Porsche 911 (930) turbo - 1978 to 1989
Porsche 964 - 1989 to 1994

Diagram Ref No 20.

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Related, superseded, cross reference or alternative numbers for comparison.

93010314715

The product you are viewing cross references to these numbers

Big End Conrod Bearing.
Supplied as SINGLE. Required 12 pcs for engine.



Fits:
Porsche 911 1984-89
Porsche 911 (930) Turbo 1978-89
Porsche 964 1989-94

3 options:
- standard size
- oversize 0.25mm
- oversize 0.50mm

Click picture for large parts diagram.
Diagram Ref No 20.

Please select below

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Related, superseded, cross reference or alternative numbers for comparison.

930103147

The product you are viewing cross references to these numbers

Big end conrod bearings. SET OF 12.



Fits:
Porsche 911 3.0 SC Carrera 07.77 - 06.80 132kw 180hp 2993cc 6c 930.03; 930.13
Porsche 911 3.0 SC Carrera 09.79 - 06.80 138kw 188hp 2993cc 6c 930.09; 930.19
Porsche 911 3.0 SC 08.80 - 07.83 150kw 204hp 2993cc 6c 930.10

Click 'Zoom in' for large parts diagram.
Diagram Ref No 20.

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Related, superseded, cross reference or alternative numbers for comparison.

93010314882

The product you are viewing cross references to these numbers

Big end conrod bearing shell, Standard Size
Need 12 per engine. Sold EACH



Fits:
Porsche 911 1970-77
Porsche 911 (930) Turbo 1975-77

Click 'Zoom in' for large parts diagram.
Diagram ref no 22

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Related, superseded, cross reference or alternative numbers for comparison.

91410314102

The product you are viewing cross references to these numbers

Big end conrod bearing shell, UNDERSIZED 0.25mm
Need 12 per engine. sold EACH



Fits:
Porsche 911 2.4 E 08.71 - 12.73 121kw 165hp 2341cc 6c 911.52; 911.62
Porsche 911 2.4 S 08.71 - 08.73 140kw 190hp 2341cc 6c 911.53; 911.63
Porsche 911 2.7 09.73 - 08.75 110kw 150hp 2687cc 6c 911.92; 911.97; 911.41; 911.46
Porsche 911 2.7 09.75 - 06.77 121kw 165hp 2687cc 6c 911.43; 911.48; 911.81; 911.82; 911.84; 911.85; 911.86; 911.89; 911.90; 911.94; 911.99
Porsche 911 2.7 S Carrera 08.73 - 01.76 129kw 175hp 2687cc 6c 911.93; 911.98; 911.42; 911.47
Porsche 911 2.7 SC Carrera RS 08.72 - 01.79 154kw 209hp 2687cc 6c 911.83
Porsche 911 3.0 SC Carrera 09.75 - 06.77 147kw 200hp 2993cc 6 930.02; 930.12
Porsche 911 3.0 Turbo 01.75 - 12.77 191kw 260hp 2993cc 6c 930.50; 930.52

Click picture for large parts diagram.
Diagram ref no 23.

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

91410314151

The product you are viewing cross references to these numbers

Big End Conrod Bearing Shell.
The Porsche Big End Connecting Rod Bearing Shell is a genuine OEM replacement part designed for classic Porsche engines. Fitted to the big end of the connecting rod, this precision-engineered bearing shell allows the connecting rod to rotate smoothly around the crankshaft journal while withstanding the extreme loads of combustion.
Sold Each.
x12 Required Per Engine.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
• Porsche 911 1970-1973 2.2L / 2.4L / 2.7L RS LWB (F)
• Porsche 914 (1970-1976)

What This Product Does:

The connecting rod bearing shell fits at the big end of the connecting rod (i.e. the end that attaches to the crankshaft journal). It allows the connecting rod to rotate smoothly about the crankshaft as the engine runs.
It provides a very precise but very small clearance between the bearing surface and the crankshaft journal. Engine oil fills this clearance, forming a thin oil film. This film supports loads from piston movement, combustion forces, and crankshaft rotation, while preventing metal-on-metal contact.

When It Needs Replacing / Symptoms Of Wear:
Rod Knock / Knocking Sound: A deep, rhythmic knock from the engine under load or on acceleration, caused by too much clearance between the bearing shell and crank journal.

• Low Oil Pressure, Especially At Idle: Worn bearing shells increase oil clearance which can reduce oil pressure.
  
• Metal Shavings Or Bearing Material In The Oil: You may see bits of bearing shell material when changing oil or from the oil filter.
  
• Engine Roughness Or Vibration, Especially At Higher RPMs: As bearings wear, the fit becomes loose, causing vibration or uneven performance.
  
• Overheating Or Discoloration Of Bearing Shell On Inspection: If the bearing has been starved of oil or has been operating under stress, it may show signs of overheating.
  
  

Why Replacement Matters:

• These bearings are critically important for engine reliability. If the big-end bearing fails, it can lead to severe damage: crankshaft journal scoring, connecting rod damage, or total engine failure.
  
• Replacing with correct spec OEM shells restores proper clearance, oil film support, and smooth engine operation.
• Using worn bearings can also lead to poor oil pressure and increased wear elsewhere. It’s a preventative maintenance item, especially in high mileage or rebuilt engines.
  
  

Diagram Ref No 23

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

90110314181

The product you are viewing cross references to these numbers

Big End Conrod Bearings OVERSIZE 0.50mm SET OF 12.



Fits:
Porsche 911 2.4 E 08.71 - 12.73 121kw 165hp 2341cc 6c 911.52; 911.62
Porsche 911 2.4 S 08.71 - 08.73 140kw 190hp 2341cc 6c 911.53; 911.63
Porsche 911 2.7 09.73 - 08.75 110kw 150hp 2687cc 6c 911.92; 911.97; 911.41; 911.46
Porsche 911 2.7 09.75 - 06.77 121kw 165hp 2687cc 6c 911.43; 911.48; 911.81; 911.82; 911.84; 911.85; 911.86; 911.89; 911.90; 911.94; 911.99
Porsche 911 2.7 S Carrera 08.73 - 01.76 129kw 175hp 2687cc 6c 911.93; 911.98; 911.42; 911.47
Porsche 911 2.7 SC Carrera RS 08.72 - 01.79 154kw 209hp 2687cc 6c 911.83
Porsche 911 3.0 SC Carrera 09.75 - 06.77 147kw 200hp 2993cc 6 930.02; 930.12
Porsche 911 3.0 Turbo 01.75 - 12.77 191kw 260hp 2993cc 6c 930.50; 930.52

Click picture for large parts diagram.
Diagram Ref No 23.

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

91410314161

The product you are viewing cross references to these numbers

Big End Conrod Bearings Standard Size
SET OF 12



Fits:
Porsche 911 2.3 E 08.71 - 12.73 121kw 165hp 2341cc 6c 911.52; 911.62
Porsche 911 2.3 S 08.71 - 08.73 140kw 190hp 2341cc 6c 911.53; 911.63
Porsche 911 2.7 09.73 - 08.75 110kw 150hp 2687cc 6c 911.92; 911.97; 911.41; 911.46
Porsche 911 2.7 09.75 - 06.77 121kw 165hp 2687cc 6c 911.43; 911.48; 911.81; 911.82; 911.84; 911.85; 911.86; 911.89; 911.90; 911.94; 911.99
Porsche 911 2.7 S Carrera 08.73 - 01.76 129kw 175hp 2687cc 6c 911.93; 911.98; 911.42; 911.47
Porsche 911 2.7 SC Carrera RS 08.72 - 01.79 154kw 209hp 2687cc 6c 911.83
Porsche 911 3.0 SC Carrera 09.75 - 06.77 147kw 200hp 2993cc 6 930.02; 930.12
Porsche 911 3.0 Turbo 01.75 - 12.77 191kw 260hp 2993cc 6c 930.50; 930.52


Click 'Zoom in' for large parts diagram.
Diagram ref no 22

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

91410314102

The product you are viewing cross references to these numbers

Big End Conrod Bearings UNDERSIZED 0.25mm SET OF 12.



Fits:
Porsche 911 2.4 E 08.71 - 12.73 121kw 165hp 2341cc 6c 911.52; 911.62
Porsche 911 2.4 S 08.71 - 08.73 140kw 190hp 2341cc 6c 911.53; 911.63
Porsche 911 2.7 09.73 - 08.75 110kw 150hp 2687cc 6c 911.92; 911.97; 911.41; 911.46
Porsche 911 2.7 09.75 - 06.77 121kw 165hp 2687cc 6c 911.43; 911.48; 911.81; 911.82; 911.84; 911.85; 911.86; 911.89; 911.90; 911.94; 911.99
Porsche 911 2.7 S Carrera 08.73 - 01.76 129kw 175hp 2687cc 6c 911.93; 911.98; 911.42; 911.47
Porsche 911 2.7 SC Carrera RS 08.72 - 01.79 154kw 209hp 2687cc 6c 911.83
Porsche 911 3.0 SC Carrera 09.75 - 06.77 147kw 200hp 2993cc 6 930.02; 930.12
Porsche 911 3.0 Turbo 01.75 - 12.77 191kw 260hp 2993cc 6c 930.50; 930.52

Click picture for large parts diagram.
Diagram Ref No 23.

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

91410314151

The product you are viewing cross references to these numbers

Big end conrod bearings, undersize 0.75 mm.
Price is for each.



Fits:
Porsche 911 1965-71
Porsche 914/6 1970-72

Click 'Zoom in' for large parts diagram.
Diagram ref no 22

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

PCG10314170

The product you are viewing cross references to these numbers

Big end conrod bearings. Oversize 0.25mm.
Price is for each.



Fits:
Porsche 911 2.0L / 2.2L 1965-71
Porsche 914 1970-76

Click 'Zoom in' for large parts diagram.
Diagram Ref No 23.

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

90110314182

The product you are viewing cross references to these numbers

Big end conrod bearings. Oversize 0.50mm
Price is for each.



Fits:
Porsche 911 2.0L / 2.2L 1965-71
Porsche 914 1970-76

Click 'Zoom in' for large parts diagram.
Diagram Ref No 23.

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

90110314183

The product you are viewing cross references to these numbers

Big End Conrod Bearings. Standard size.
SET OF 12

Engine Type: 911.01, 911.02, 911.03, 911.04, 911.05, 911.06, 911.07, 911.08.

Fits:
Porsche 911 2.0 L 01.63 - 08.67 96kw 130hp 1991cc 6c 901.01; 901.05; 901.06; 901.07; 901.14; 901.17
Porsche 911 2.0 T 08.68 - 02.72 81kw 110hp 1991cc 6c 901.03; 901.13
Porsche 911 2.0 E 09.68 - 12.69 103kw 140hp 1991cc 6c 901.09; 901.11
Porsche 911 2.0 S 07.66 - 11.68 118kw 160hp 1991cc 6c 901.02; 901.08
Porsche 911 2.0 S 09.68 - 12.69 125kw 170hp 1991cc 6c 901.10
Porsche 911 2.2 T 01.70 - 12.72 92kw 125hp 2195cc 6c 911.06; 911.07; 911.08; 911.03
Porsche 911 2.2 E 09.69 - 12.71 114kw 155hp 2195cc 6c 911.01; 911.04
Porsche 911 2.2 S 09.69 - 12.71 132kw 180hp 2195cc 6c 911.02

Diagram Ref No 23.

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

90110314181

The product you are viewing cross references to these numbers

Connecting rod bush - small end.

Sold individually; six required per vehicle.

 


Fits:
Porsche 911 Turbo (930) 1978-89
Porsche 911 Carrera 3.2L 1984-1989
Porsche 964 Carrera / Turbo 1989-94

Click picture for large parts diagram.
Diagram Ref No 17.

Connecting rod bush - small end.

Sold individually; six required per vehicle.

 


Fits:
Porsche 911 Turbo (930) 1978-89
Porsche 911 Carrera 3.2L 1984-1989
Porsche 964 Carrera / Turbo 1989-94

Click picture for large parts diagram.
Diagram Ref No 17.

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

93010313401

The product you are viewing cross references to these numbers

Crankshaft Bearing Shell, Thrust Bearing (SINGLE).
Sold Each.
x2 Required Per Car.

Fits:
Porsche 911 1970>>1973
Porsche 911 1974>>1977
Porsche 911 / 912 1965>>1969
Porsche 911 Turbo 3.0L 1975>>1977
Porsche 914 1970>>1976

Diagram Ref No 23

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

90110113175

The product you are viewing cross references to these numbers