Intermediate shaft bearing (IMS) kit with all ancillary parts, 58mm flange OPEN engine. 997 3.6L / 3.8L Tiptronic

IMS Bearing Upgrade Kit with 58mm Flange for “Open” Engines (doing an engine rebuild) with Complete Ancillaries – Essential Reliability Upgrade for Porsche 997.1 Tiptronic Models

This 58mm flange IMS bearing upgrade kit is specifically engineered for Porsche 997.1 manual cars fitted with M97 intermediate shaft bearings. Supplied as a complete installation package, the kit includes a strengthened bearing assembly, fresh mounting hardware, seals, exhaust clamps, sleeves and all additional ancillaries needed to complete the upgrade in one comprehensive service.

Fits:

• 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

What the IMS Bearing Upgrade Kit Does

This complete kit:

• Replaces the vulnerable original IMS bearing with a fortified, precision-engineered alternative
  
• Reduces friction and improves lubrication stability
• Protects the intermediate shaft from premature wear
• Prevents metal debris contamination inside the engine
• Restores confidence in long-term engine reliability
• Includes all necessary hardware, clamps, sleeves and seals for a seamless installation

Designed to meet the demands of both road use and high-performance driving.

Why IMS Bearings Fail in Porsche M96/M97 Engines

Common causes include:

• Lubrication starvation, leading to ball bearing scoring
  
• Seal degradation, causing grease loss and overheating
  
• Contaminants entering the bearing assembly
• High engine speeds, accelerating wear
  
• Age-related material fatigue
• Inadequate internal lubrication flow in the early intermediate shaft design

Symptoms are often subtle—or non-existent—until severe engine damage has occurred.

Why the IMS Bearing Should Be Upgraded

Upgrading the IMS bearing provides:

• Prevention of catastrophic bearing failure
• Significant extension of engine lifespan
• Peace of mind for owners of 996/997/986/987 models
• A stronger, more stable bearing with improved lubrication path
• Reduction in maintenance costs over time
• A complete installation solution thanks to included ancillaries

This kit is essential for any Porsche owner planning long-term stewardship, spirited driving, or engine rebuild work.