Connecting Rod / "Big End" Bearing Set - Standard Size - for Porsche 911 2.4L / 2.7L & 911 Turbo (930) 3.0L 1972-1977

SET OF 12 connecting rod bearing shells - standard size.
This bearing set directly replaces the factory standard-size bearings and includes all shells required for one engine rebuild. These bearings provide smooth, low-friction rotation between the connecting rod and crankshaft journal, maintaining the correct oil film clearance critical to engine reliability and longevity.

Fits:
Porsche 911 T-E 2.4L (US/Canadian Market - Mechanical Fuel Injection) 1972-1973
Porsche 911 T-V 2.4L (Rest of World - Carburetors) 1972-73
Porsche 911 T-K 2.4L (US/Canadian Market - K-Jetronic CIS) 1973
Engine Code(s): 91151, 91157, 91161, 91167, 91191, 91196

Porsche 911 E 2.4L 1972-73
Porsche 911 S 2.4L 1972-73
Porsche 911 Carrera RS 2.7L 1973
Engine Code(s): 91152, 91153, 91162,91163, 91183

Porsche 911 2.7L 1974-77
Porsche 911 S 2.7L 1974-77
Porsche 911 Carrera 2.7L 1974-76
Porsche 911 Carrera 3.0L 1976-77
Engine Code(s): 91192, 91197, 91141, 91146, 91181, 91186, 91193, 91198, 91142, 91143, 91144, 91148, 91149, 91182, 91189, 91185, 91190, 91194, 91199, 93002, 93012

Porsche 911 (930) Turbo 3.0L 1975-77
Engine Code(s): 93050, 93051, 93052, 93053, 93054

Diagram Ref. 23.

•  Position: Connecting rod big-end journals
•  Function: Maintains oil film clearance and crankshaft rotation stability
•  Symptoms of Failure: Low oil pressure, engine knock, metal debris in oil
•  Replacement Interval: During rebuild or low oil pressure diagnosis
•  Benefits: OEM fit, stable lubrication, high load resistance, quiet operation
•  Set Contents: Complete set for one engine (6 cylinders)

Rod bearings gradually wear due to high-speed loading, heat, and oil contamination.
Excessive clearance or bearing wear can lead to:
•    Low oil pressure Metallic noise or “rod knock”
•    Engine vibration or bearing seizure

Replace bearings:
•   During every engine rebuild or crankshaft regrind
•   If metal particles are found in oil
•   When oil pressure is below specification or knocking occurs

Installing a new bearing set restores correct oil clearance, stable pressure, and long-term bottom-end reliability.

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Related, superseded, cross reference or alternative numbers for comparison.

91410314102

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