Intermediate shaft bearing (IMS) kit with all ancillary parts, 58mm flange OPEN engine. Porsche 997 3.6L / 3.8L Manual - IMSKIT997MAN.2
IMSKIT997MAN.2
Vehicle Group
- 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
Information
IMS Bearing Upgrade Kit with 58mm Flange for “Open” Engines (doing an engine rebuild) with Complete Ancillaries – Essential Reliability Upgrade for Porsche 997.1 Manual 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
The IMS (Intermediate Shaft) bearing supports the intermediate shaft that drives the camshafts. When the original bearing design deteriorates, it can fail without warning—leading to catastrophic engine damage. Upgrading to a modern, precision-engineered bearing significantly improves durability and long-term reliability, making this kit one of the most important preventative maintenance investments for these Porsche models.
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.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
IMSKIT997MAN.2
106-08.2
106-08.2R
106-08.4R
106-08.4
0PB105249
99907309202
90006713103
99610722560
90012310630
90012314730
99970734440
9990842150
99711111300
90038000501
90037818301
90037810501
99711152000
99711123001
99908405202
N01024426
N 01024426
99711691305
99711691316
987997IMS58MM
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
1 x IMS Intermediate Shaft Bearing Upgrade Eternal Fix -58MM FLANGE - Open Engine (987997IMS58MM
1 x Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1 (0PB105249/1
8 x Flywheel Bolt. Porsche 986 / 987 / 987C / 996 / 997 - 99907309202 (99907309202/1
6 x Flywheel to clutch pressure plate bolt Porsche 996 / 986 / 987 / 997 (90006713103/1
1 x Oil filter. Porsche 996 / 996 GT3 / 996 Turbo / 997 / 987C Cayman / 955 Cayenne S & 955 Cayenne Turbo (99610722560/2
1 x Oil drain plug seal ring. Porsche 986 Boxster / 987 Boxster / 987 Cayman / 996 / 997 (90012310630/2
3 x Chain adjuster sealing ring for Porsche 996 / 986 / 987C / 997.1 (90012314730
3 x O-Ring for Timing Chain Adjuster/Tensioner - 18.77x1.78. Porsche 986 Boxster / 987 Boxster & Cayman / 996 & 997 Carrera (99970734440/1
2 x Engine mount nut for Porsche 993 / 996 / 997 (99908421501
2 x Exhaust manifold to cat gasket. Porsche 997 MKI / 987 Boxster / 987C Cayman (99711111300/1
10 x Exhaust hexagon nut. Porsche 996 / 997 (90038000501/1
2 x Exhaust hexagon head bolt (LONG). Porsche 996 / 997 (90037818301/1
2 x Exhaust Hexagon Head Bolt (SHORT). Porsche 996 / 997 (90037810501
2 x Exhaust sleeve catalytic converter to silencer. Porsche 996 / 997 (99711152000/1
2 x Exhaust Catalytic Converter Clamp. Porsche 997 (99711123001
6 x Exhaust Lock Nut for Bolt. Porsche 964 (99908405202/1
6 x Exhaust Manifold to Catalytic Converter Bolt. Porsche 997 / 987 / 981 / 991 (N01024426
Price: £1,053.10
In stock
Related products
Vehicle Group
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Information
IMS KIT WITH LARGE NON EXTRACTABLE STEEL BEARING
This bearing is 62mm outer diameter and 17mm wide. It is not extractable externally and engine needs to be stripped down in order to change it.
M97 Larger Bearing IMS Direct Oil Feed (DOF) Kit
Fits:
Porsche Boxster 987 2.7L 2005 -08/08
Porsche Boxster 987 3.2/3.4L 2005-08/08
Porsche Cayman 2.7L 987C 2006>>
Porsche Cayman S 3.4L 987C 2005>>
Kit Includes:
Patented DOF Flange with anti-rust zinc plating
3 micro-encapsulated Porsche bolts
Spacer for double-row bearing
Engine oil port adapter with crush ring
Cam Plug
3,000psi hydraulic hose
Fitting for hose
Thread locker
Installation instructions
The direct oil feed (DOF) solution uses a patent pending custom made Intermediate Shaft Flange that utilizes a direct oil feed to the original Intermediate Shaft Bearing. It uses an adapted pressure fed oil line from a positive oil pressure feed on the cylinder head directly to an opening in the custom Intermediate Shaft Flange. This feeds fresh oil directly to the open end of the IMS bearing (after removing the seal to expose the ball bearings on the IMS bearing). By using a positive oil feed from the engine's cylinder head valve cover, there will always be a consistent flow of oil directed to the open end of the intermediate shaft bearing.
This is a cost effective way to help protect against a possible IMS bearing failure, using the original bearing. The system, however can also be used when replacing the bearing with a new SKF steel ball bearing for added insurance with a new, zero mile bearing.
This bearing is 62mm outer diameter and 17mm wide. It is not extractable externally and engine needs to be stripped down in order to change it.
M97 Larger Bearing IMS Direct Oil Feed (DOF) Kit
Fits:
Porsche Boxster 987 2.7L 2005 -08/08
Porsche Boxster 987 3.2/3.4L 2005-08/08
Porsche Cayman 2.7L 987C 2006>>
Porsche Cayman S 3.4L 987C 2005>>
Kit Includes:
Patented DOF Flange with anti-rust zinc plating
3 micro-encapsulated Porsche bolts
Spacer for double-row bearing
Engine oil port adapter with crush ring
Cam Plug
3,000psi hydraulic hose
Fitting for hose
Thread locker
Installation instructions
The direct oil feed (DOF) solution uses a patent pending custom made Intermediate Shaft Flange that utilizes a direct oil feed to the original Intermediate Shaft Bearing. It uses an adapted pressure fed oil line from a positive oil pressure feed on the cylinder head directly to an opening in the custom Intermediate Shaft Flange. This feeds fresh oil directly to the open end of the IMS bearing (after removing the seal to expose the ball bearings on the IMS bearing). By using a positive oil feed from the engine's cylinder head valve cover, there will always be a consistent flow of oil directed to the open end of the intermediate shaft bearing.
This is a cost effective way to help protect against a possible IMS bearing failure, using the original bearing. The system, however can also be used when replacing the bearing with a new SKF steel ball bearing for added insurance with a new, zero mile bearing.
About kit
This kit is comprised of the following items:
1 x Direct oil feed installation kit for M97 engines 2005-2008 (99710599701
1 x Large IMS bearing for DOF (99610599677
Price: £880.00
Orderable
Vehicle Group
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Information
IMS Intermediate Shaft Bearing Upgrade Eternal Fix -58MM FLANGE - OPEN ENGINES (while doing an engine rebuild)
Fits:
Porsche 997 2005-08
Porsche Boxster 987
Porsche Cayman 987
(Not for M96 Engines)
Porsche Ims Intermediate Shaft Bearing Upgrade - Eternal Fix with Oil Pressure Feed - 58 MM - Open Engine Permanently Fix Your Intermediate Shaft With The Eternal Fix! Unlike Failure Prone Ball Bearings, Eps Uses A Patented Cylindrical Bearing With Thrust Control.
Prevent future catastrophic engine failure permanently with the only true Eternal Fix for the notorious Porsche intermediate shaft bearing. Unlike the other failure-prone ball bearing products that the original IMS and other upgrades on the market use, EPS uses a patented cylindrical bearing with thrust control that can be pressed directly into the back of the engine without disassembly. The cylindrical bearings have over 12 times the load capacity of other ball bearing solutions making the EPS IMS bearing the clear choice. Backed by a full 5-year warranty and includes an oil feed modification kit. Order yours today!
WHAT MAKES OUR SOLUTION DIFFERENT?
Roller bearings are not intended for carrying large axial loads. Similar to failure-prone ball bearings, when cylindrical roller bearings are used for thrust control, the roller becomes compromised due to the limited surface contact area on the sides of the rollers. The results of using a cylindrical bearing for thrust control will be similar to all other ball bearing solutions.
In our patented system, we use a 15mm cylindrical bearing with thrust control that allows for the separation of the axial load from the radial load. Our roller bearings do NOT carry the axis load (thrust control) on the side, which leaves the roller free to carry only the radial load (main load). The axial load is carried exclusively on the entire permitter of the outer race. This results in a bearing that is not overloaded and will last the lifetime of the engine.
EPS recommends using this product in conjunction to the Rear Main #8 Seal and Housing
Fits:
Porsche 997 2005-08
Porsche Boxster 987
Porsche Cayman 987
(Not for M96 Engines)
Porsche Ims Intermediate Shaft Bearing Upgrade - Eternal Fix with Oil Pressure Feed - 58 MM - Open Engine Permanently Fix Your Intermediate Shaft With The Eternal Fix! Unlike Failure Prone Ball Bearings, Eps Uses A Patented Cylindrical Bearing With Thrust Control.
Prevent future catastrophic engine failure permanently with the only true Eternal Fix for the notorious Porsche intermediate shaft bearing. Unlike the other failure-prone ball bearing products that the original IMS and other upgrades on the market use, EPS uses a patented cylindrical bearing with thrust control that can be pressed directly into the back of the engine without disassembly. The cylindrical bearings have over 12 times the load capacity of other ball bearing solutions making the EPS IMS bearing the clear choice. Backed by a full 5-year warranty and includes an oil feed modification kit. Order yours today!
WHAT MAKES OUR SOLUTION DIFFERENT?
Roller bearings are not intended for carrying large axial loads. Similar to failure-prone ball bearings, when cylindrical roller bearings are used for thrust control, the roller becomes compromised due to the limited surface contact area on the sides of the rollers. The results of using a cylindrical bearing for thrust control will be similar to all other ball bearing solutions.
In our patented system, we use a 15mm cylindrical bearing with thrust control that allows for the separation of the axial load from the radial load. Our roller bearings do NOT carry the axis load (thrust control) on the side, which leaves the roller free to carry only the radial load (main load). The axial load is carried exclusively on the entire permitter of the outer race. This results in a bearing that is not overloaded and will last the lifetime of the engine.
EPS recommends using this product in conjunction to the Rear Main #8 Seal and Housing
Price: £815.00
In stock
Vehicle Group
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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
- Porsche 997 MK1 TURBO 2007-09
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Information
IMS Intermediate Shaft Bearing Upgrade Eternal Fix -62MM FLANGE - CLOSED ENGINES (MUST USE OUR BORING TOOL IN ORDER TO INSTALL)
the boring tool can be purchased or rented from us
Code: 987997IMSTOOL
Fits:
Porsche 997 2005-08
Porsche Boxster 987
Porsche Cayman 987
(Not for M96 Engines)
Porsche Ims Intermediate Shaft Bearing Upgrade - Eternal Fix with Oil Pressure Feed - 62 MM - Closed Engine Permanently Fix Your Intermediate Shaft With The Eternal Fix! Unlike Failure Prone Ball Bearings, Eps Uses A Patented Cylindrical Bearing With Thrust Control.
Prevent future catastrophic engine failure permanently with the only true Eternal Fix for the notorious Porsche intermediate shaft bearing. Unlike the other failure-prone ball bearing products that the original IMS and other upgrades on the market use, EPS uses a patented cylindrical bearing with thrust control that can be pressed directly into the back of the engine without disassembly. The cylindrical bearings have over 12 times the load capacity of other ball bearing solutions making the EPS IMS bearing the clear choice. Backed by a full 5-year warranty and includes an oil feed modification kit. Order yours today!
WHAT MAKES OUR SOLUTION DIFFERENT?
Roller bearings are not intended for carrying large axial loads. Similar to failure-prone ball bearings, when cylindrical roller bearings are used for thrust control, the roller becomes compromised due to the limited surface contact area on the sides of the rollers. The results of using a cylindrical bearing for thrust control will be similar to all other ball bearing solutions.
In our patented system, we use a 15mm cylindrical bearing with thrust control that allows for the separation of the axial load from the radial load. Our roller bearings do NOT carry the axis load (thrust control) on the side, which leaves the roller free to carry only the radial load (main load). The axial load is carried exclusively on the entire permitter of the outer race. This results in a bearing that is not overloaded and will last the lifetime of the engine.
EPS recommends using this product in conjunction to the Rear Main #8 Seal and Housing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
987997IMS62MM
The product you are viewing cross references to these numbers
the boring tool can be purchased or rented from us
Code: 987997IMSTOOL
Fits:
Porsche 997 2005-08
Porsche Boxster 987
Porsche Cayman 987
(Not for M96 Engines)
Porsche Ims Intermediate Shaft Bearing Upgrade - Eternal Fix with Oil Pressure Feed - 62 MM - Closed Engine Permanently Fix Your Intermediate Shaft With The Eternal Fix! Unlike Failure Prone Ball Bearings, Eps Uses A Patented Cylindrical Bearing With Thrust Control.
Prevent future catastrophic engine failure permanently with the only true Eternal Fix for the notorious Porsche intermediate shaft bearing. Unlike the other failure-prone ball bearing products that the original IMS and other upgrades on the market use, EPS uses a patented cylindrical bearing with thrust control that can be pressed directly into the back of the engine without disassembly. The cylindrical bearings have over 12 times the load capacity of other ball bearing solutions making the EPS IMS bearing the clear choice. Backed by a full 5-year warranty and includes an oil feed modification kit. Order yours today!
WHAT MAKES OUR SOLUTION DIFFERENT?
Roller bearings are not intended for carrying large axial loads. Similar to failure-prone ball bearings, when cylindrical roller bearings are used for thrust control, the roller becomes compromised due to the limited surface contact area on the sides of the rollers. The results of using a cylindrical bearing for thrust control will be similar to all other ball bearing solutions.
In our patented system, we use a 15mm cylindrical bearing with thrust control that allows for the separation of the axial load from the radial load. Our roller bearings do NOT carry the axis load (thrust control) on the side, which leaves the roller free to carry only the radial load (main load). The axial load is carried exclusively on the entire permitter of the outer race. This results in a bearing that is not overloaded and will last the lifetime of the engine.
EPS recommends using this product in conjunction to the Rear Main #8 Seal and Housing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
987997IMS62MM
987997IMSTOOL
The product you are viewing cross references to these numbers
Price: £815.00
Orderable