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- Accessories
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Hexagon nut Genuine Porsche part 999084213A2
• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.
Before purchasing thoroughly check part to confirm compatibility.
- We are unable to provide fitting details for this product at this time. Please contact us for further information.
Fits:
Porsche 993 Carrera
Porsche 996 Carrera
Porsche 996 TURBO / GT2 / GT3
Porsche 997.1 Carrera
Porsche 997.1 TURBO / GT2 / GT3
Porsche 997.2 TURBO / GT2 / GT3
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99908421501
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- 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 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
IMS Bearing Upgrade Kit with Full Ancillaries – Essential Reliability Upgrade for 997 Porsche M96/M97 Engines
This IMS bearing upgrade kit includes everything
needed to replace and enhance the intermediate shaft bearing in Porsche M96 and
early M97 engines. Designed for early 997.1 manual models, this complete
package includes the upgraded bearing assembly, new hardware, seals, exhaust
clamps, sleeves and all required ancillaries to streamline installation.
Fits:
**Engine
(3.8) number up to M97/01 68509790 has the older IMS bearing (this product
fits) and Engine number from M97/01 68509791 has the larger revised IMS. (this
product does not fit)
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.1
The product you are viewing cross references to these numbers
- 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
IMS Bearing Upgrade Kit with Full Ancillaries – Essential Reliability Upgrade for 997 Porsche M96/M97 Engines
This IMS bearing upgrade kit includes everything
needed to replace and enhance the intermediate shaft bearing in Porsche M96 and
early M97 engines. Designed for early 997.1 tiptronic models, this complete
package includes the upgraded bearing assembly, new hardware, seals, exhaust
clamps, sleeves and all required ancillaries to streamline installation.
Fits:
- Porsche 997 MK1 Carrera 2 3.6L 2005 (engine code M96.05)
- Porsche 997 MK1 Carrera 2S 3.8L 2005 (engine code M97.1)**
- Porsche 997 MK1 Carrera 4 3.6L 2005 (engine code M96.05)
- Porsche 997 MK1 Carrera 4S 3.8L 2005 (engine code M97.1)**
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.
IMSKIT997TIP.1
The product you are viewing cross references to these numbers
- 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
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
The product you are viewing cross references to these numbers
- 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
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
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.
IMSKIT997TIP.2
The product you are viewing cross references to these numbers
- 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
62mm Flange IMS Bearing Upgrade Kit for “Closed” Engines with
Full Ancillaries – The Ultimate Eternal Fix for Porsche 997.1 Manual Models
MUST USE OUR BORING TOOL IN ORDER TO INSTALL - the boring tool can be purchased or rented from us
This IMS bearing upgrade kit is engineered specifically for Porsche 997.1 manual cars with M97 intermediate shaft housings. This version is the Eternal Fix, a patented and significantly stronger alternative to ball-bearing-based designs. The kit includes a 62mm cylindrical IMS bearing with thrust control, plus all required ancillaries—hardware, exhaust clamps, sleeves, seals and fittings—ensuring a complete and professional installation.
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
Designed for “closed” engines, this IMS solution must be installed using a dedicated boring tool, allowing the bearing assembly to be pressed directly into the back of the engine without full teardown.
The Early 997.1 engines using the 62mm closed bearing are particularly vulnerable to IMS wear, lubrication issues and axial loading. The EPS cylindrical bearing design eliminates these weaknesses by separating axial load from radial load, making this the only true long-term IMS cure rather than a temporary replacement.
What This IMS Upgrade Kit Does
This advanced IMS upgrade:
- Permanently eliminates the weak factory-style ball bearing
- Uses
a patented cylindrical roller bearing with dramatically higher load
capacity
- Separates
axial and radial loads to prevent premature bearing overload
- Improves
lubrication via a dedicated oil-pressure feed kit
- Protects the intermediate shaft and cam drive system
- Allows
installation without full engine disassembly (when used with the
correct boring tool)
- Includes hardware, sleeves, exhaust clamps and seals for a complete upgrade
Designed for long-term reliability and motorsport-level durability.
Why the Original IMS Bearings Fail (Especially on 62mm Closed Engines)
Typical causes include:
- Ball
bearing fatigue, leading to sudden collapse
- Axial
load overload, which ball bearings cannot handle
- Oil contamination or lack of sufficient lubrication
- Heat cycling and material fatigue
- Seal
degradation, allowing lubrication to escape
- Design limitations of the early intermediate shaft system
Closed-style engines are especially susceptible because the bearing is not easily inspectable and operates under higher load.
Why the Eternal Fix IMS Upgrade Is the Best Solution
This patented system offers:
- Over
12× the load capacity of traditional ball-bearing IMS solutions
- True
separation of radial and axial loads, preventing roller overload
- A
bearing that does not rely on side-loading, unlike conventional
cylindrical or ball bearings
- An
oil-fed outer race, ensuring stable lubrication
- A
lifetime-capable design, not a service interval part
- A
5-year warranty for confidence and peace of mind
- Compatibility with closed engines using a precise boring tool
It is engineered to outlast the engine itself, making it the ultimate preventative upgrade for Porsche 997.1 manual cars.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
IMSKIT997MAN.3
The product you are viewing cross references to these numbers
- 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
62mm Flange IMS Bearing Upgrade Kit for “Closed” Engines with
Full Ancillaries – The Ultimate Eternal Fix for Porsche 997.1 Tiptronic Models
MUST USE OUR BORING TOOL IN ORDER TO INSTALL - the boring tool can be purchased or rented from us
This IMS bearing upgrade kit is engineered specifically for Porsche 997.1 Tiptronic cars with M97 intermediate shaft housings. This version is the Eternal Fix, a patented and significantly stronger alternative to ball-bearing-based designs. The kit includes a 62mm cylindrical IMS bearing with thrust control, plus all required ancillaries—hardware, exhaust clamps, sleeves, seals and fittings—ensuring a complete and professional installation.
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
Designed for “closed” engines, this IMS solution must be installed using a dedicated boring tool, allowing the bearing assembly to be pressed directly into the back of the engine without full teardown.
The Early 997.1 engines using the 62mm closed bearing are particularly vulnerable to IMS wear, lubrication issues and axial loading. The EPS cylindrical bearing design eliminates these weaknesses by separating axial load from radial load, making this the only true long-term IMS cure rather than a temporary replacement.
What This IMS Upgrade Kit Does
This advanced IMS upgrade:
- Permanently eliminates the weak factory-style ball bearing
- Uses
a patented cylindrical roller bearing with dramatically higher load
capacity
- Separates
axial and radial loads to prevent premature bearing overload
- Improves
lubrication via a dedicated oil-pressure feed kit
- Protects the intermediate shaft and cam drive system
- Allows
installation without full engine disassembly (when used with the
correct boring tool)
- Includes hardware, sleeves, exhaust clamps and seals for a complete upgrade
Designed for long-term reliability and motorsport-level durability.
Why the Original IMS Bearings Fail (Especially on 62mm Closed Engines)
Typical causes include:
- Ball
bearing fatigue, leading to sudden collapse
- Axial
load overload, which ball bearings cannot handle
- Oil contamination or lack of sufficient lubrication
- Heat cycling and material fatigue
- Seal
degradation, allowing lubrication to escape
- Design limitations of the early intermediate shaft system
Closed-style engines are especially susceptible because the bearing is not easily inspectable and operates under higher load.
Why the Eternal Fix IMS Upgrade Is the Best Solution
This patented system offers:
- Over
12× the load capacity of traditional ball-bearing IMS solutions
- True
separation of radial and axial loads, preventing roller overload
- A
bearing that does not rely on side-loading, unlike conventional
cylindrical or ball bearings
- An
oil-fed outer race, ensuring stable lubrication
- A
lifetime-capable design, not a service interval part
- A
5-year warranty for confidence and peace of mind
- Compatibility with closed engines using a precise boring tool
It is engineered to outlast the engine itself, making it the ultimate preventative upgrade for Porsche 997.1 Tiptronic cars.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
IMSKIT997TIP.3
The product you are viewing cross references to these numbers
- 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
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Saturday: Closed
Sunday: Closed