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Engine Bearings / Shells

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DISPLAYING 65 to 80 (of 91 products)
<< 3 4 5 6
91110190280/1
Product Information
Product Information
Main crankshaft bearing set (without bearing VIII).
inner -0.50mm undersize / outer +0.50 oversize
Set of 12 bearings + 2 thrust bearings.

oematch

Fits:
Porsche 911 Carrera 2.7L / 3.0L 1974-77
Porsche 930 Turbo 3.0L 1975-77

Click 'Zoom in' for large parts diagram.
Diagram ref no 23 and 24.

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91110190280
91110190280

The product you are viewing cross references to these numbers
Special Order item
93010113292
Product Information
Product Information
Main crankshaft bearing shell.
Sold individually - 12 required per engine. 

Exterior Measurement: Standard. 
Interior Measurement: +0.25mm Oversize. 

Fits: 
Porsche 911 SC 3.0L 1978-1983 
Porsche 911 3.2L 1984-1989 
Porsche 959 2.8L 1987-1988 
Porsche 964 1989-1994 (All models inc. RS/Turbo) 
Porsche 993 1994-1998 (All models inc. RS/Turbo/GT2) 
Porsche 996 3.6L Turbo / GT2 2000-2005 
Porsche 996 3.6L GT3 >>2001 (360BHP Variant Only) 

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Diagram ref no 23

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93010113292
93010113251

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Special Order item
93010113272
Product Information
Product Information
Main crankshaft bearing shell, II-VII.
Oversize: Inner 0.25mm and Outer 0.25 mm.
Sold each, required 12.

porsche

Fits:
Porsche 911 1978-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo 2001-05
Porsche 996 GT3 3.6L 1999-01

Click 'Zoom in' for large parts diagram.
Diagram ref no 13

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93010113272
93010113271
93010113272

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93010113272/1
Product Information
Product Information
Main crankshaft bearing shell, II-VII.
Oversize: Inner 0.25mm and Outer 0.25 mm.
Sold each, required 12.

oematch

Fits:
Porsche 911 1978-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo 2001-05
Porsche 996 GT3 3.6L 1999-01

Click 'Zoom in' for large parts diagram.
Diagram ref no 13

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93010113272
93010113272
93010113271

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Special Order item
90001206100
Product Information
Product Information
Nose Bearing Dowel Pin. 5 H 8 X 10.

porsche

Fits:
Porsche 911 1965-89
Porsche 914 1970-76
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo/GT2 2001-05
Porsche 997 Turbo/GT2 2007-09
Porsche 997 Turbo/GT2 RS 2010-13
Porsche 996 GT3 2000-05
Porsche 997 GT3 2007-11

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Diagram ref no 25

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90001206100
90001206100

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Special Order item
90110113803
Product Information
Product Information
Crankshaft Main Bushing Sleeve - Bushing VIII - STANDARD size

porsche

Fits:
Porsche 911 1965-77
Porsche 914-6 1970-72

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Diagram ref no 25

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90110113803
90110113803

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90110113803/1
Product Information
Product Information
Crankshaft Main Bushing Sleeve - Bushing VIII - STANDARD size

Fits:
Porsche 911 1965-77
Porsche 914-6 1970-72

Diagram ref no 25

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90110113803
313094410322
90110113803

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Special Order item
90110113853
Product Information
Product Information
Nose bearing sleeve. Undersize 0.25mm inner

porsche

Fits:
Porsche 911/912 1965-77
Porsche 911 (930) Turbo 1975-77
Porsche 914-6 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 25

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90110113853
90110113853

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90110113853/1
Product Information
Product Information
Nose bearing sleeve. Undersize 0.25mm inner

oematch

Fits:
Porsche 911/912 1965-77
Porsche 911 (930) Turbo 1975-77
Porsche 914-6 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 25

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90110113853
90110113853

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90110113858/1
Product Information
Product Information
Nose bearing sleeve. Undersize 0.50mm inner

Fits:
Porsche 911/912 1965-77
Porsche 911 (930) Turbo 1975-77
Porsche 914-6 1970-76

Diagram ref no 25

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90110113858
313 09 443 03 22
313094430322
90110113858

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90110113873/1
Product Information
Product Information
Nose bearing sleeve, VIII. Oversize 0.25mm outer, Undersize 0.25mm inner

oematch

Fits:
Porsche 911/912 1965-77
Porsche 911 (930) Turbo 1975-77
Porsche 914-6 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 25

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90110113873
313 09 445 03 22
313094450322
90110113873

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Special Order item
90110113891
Product Information
Product Information
Nose bearing sleeve. Oversize 0.25mm outer

porsche

Fits:
Porsche 911/912 1965-77
Porsche 911 (930) Turbo 1975-77
Porsche 914-6 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 25

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90110113891
90110113863
313 09 444 03 22
313094440322

The product you are viewing cross references to these numbers
90110113891/1
Product Information
Product Information
Nose bearing sleeve. Oversize 0.25mm outer

Fits:
Porsche 911/912 1965-77
Porsche 911 (930) Turbo 1975-77
Porsche 914-6 1970-76

Diagram ref no 25

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90110113891
313 09 444 03 22
313094440322
90110113863
90110113891

The product you are viewing cross references to these numbers
Special Order item
96410113870
Product Information
Product Information
Nose bearing sleeve. VIII. Oversize 0.25mm outer.

porsche

Fits:
Porsche 911 1978-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05

Click 'Zoom in' for large parts diagram.
Diagram ref no 24

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96410113870
96410113865
96410113870

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96410113870/1
Product Information
Product Information
Nose bearing sleeve. VIII. Oversize 0.25mm outer.

oematch

Fits:
Porsche 911 1978-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05

Click 'Zoom in' for large parts diagram.
Diagram ref no 24

Related reference numbers
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96410113870
96410113865
96410113870

The product you are viewing cross references to these numbers
Special Order item
96410113854
Product Information
Product Information
Nose bearing sleeve. Oversize 0.25mm inner

porsche

Fits:
Porsche 911 1978-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 Turbo 2001-05
Porsche 996 GT3 / GT3 RS2000-03

Click 'Zoom in' for large parts diagram.
Diagram ref no 24

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96410113854
96410113854

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DISPLAYING 65 to 80 (of 91 products)
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About Engine Bearings / Shells

Engine Shell Bearings – Precision Big End, Con Rod & Thrust Bearings for Porsche Engines

Engine shell bearings are the unsung heroes of an engine's architecture — ensuring smooth, friction-free motion between the crankshaft, connecting rods, and engine block. They play a vital role in maintaining oil clearance, supporting rotation, and absorbing load during combustion.

At Design911, we supply a full range of precision-engineered shell bearings, including big end bearings, connecting rod (con rod) bearings, and thrust bearings, designed for both classic air-cooled and modern water-cooled Porsche engines. Manufactured to high-grade tolerances, our bearings provide exceptional load capacity, surface finish, and oil film stability — guaranteeing reliability even under extreme performance conditions.

Whether you’re carrying out a rebuild, refresh, or performance upgrade, our manufacturer-quality bearings deliver the balance, durability, and precision demanded by Porsche enthusiasts and engine builders worldwide.

What Do Engine Shell Bearings Do?

Shell bearings create a low-friction interface between rotating and stationary engine parts, allowing the crankshaft and connecting rods to spin freely under heavy load.

Core Functions:

  • Support crankshaft and con rod rotation with minimal friction.
  • Maintain correct oil clearance for consistent lubrication.
  • Absorb and distribute combustion forces evenly across the crank journals.
  • Reduce wear and vibration, enhancing engine longevity.

Without these bearings, metal-to-metal contact would occur, resulting in catastrophic engine failure.

Why Do Engine Bearings Fail?

Even high-performance bearings wear over time, particularly when exposed to heat, contamination, or oil pressure issues. Failure can lead to increased friction, engine noise, or complete bearing seizure.

Common Causes of Bearing Failure Include:

  • Oil starvation or low oil pressure, causing direct metal contact.
  • Contaminated or degraded engine oil, introducing abrasive particles.
  • Improper clearance or installation, leading to uneven wear.
  • Overheating from excessive load or detonation.
  • Bearing fatigue or material degradation after prolonged use.

Signs of bearing wear include knocking sounds, low oil pressure warnings, or visible scoring on bearing surfaces. Immediate replacement is critical to prevent damage to the crankshaft and engine block.

Why Replace with Precision-Grade Bearings?

Installing new, precision-matched bearings during an engine rebuild ensures proper oil clearance, smooth operation, and reliable power delivery.

Key Benefits:

  • Restores optimal oil pressure and lubrication performance.
  • Eliminates knocking and vibration caused by worn bearings.
  • Prevents crankshaft scoring and internal wear.
  • Crafted from tri-metal or bi-metal alloys for superior strength and durability.
  • Precision-machined tolerances ensure consistent performance and fitment.
  • Compatible with a wide range of Porsche engines, from air-cooled 911s to GT models.

Replacing worn shell bearings is a vital step in any Porsche engine rebuild, ensuring the longevity and smoothness that define the marque’s performance heritage.

Highlights:

  • Comprehensive range of big end, con rod, and thrust bearings.
  • Precision-engineered to motorsport standards for high-load durability.
  • Tri-metal and bi-metal alloy constructions for strength and thermal stability.
  • Ensures consistent oil clearance and pressure balance.
  • Ideal for rebuilds, restorations, and high-performance applications.
  • Perfect fitment for Porsche air-cooled and water-cooled engines.

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