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Ball Joint For Longer Tie Rod. Porsche 356 50-57 - 356040008
356040008
Vehicle Group
- Porsche 356 1950-55
Information
Ball Joint For Longer Tie Rod.
Restore the steering precision and integrity of your Porsche 356 with this ball joint, designed for the longer tie rod version. Suited for Porsche 356 models from 1950 to 1957, this ball joint accepts the conus FI10,7 / FI12,2 specification and features a housing thread of M14 × 1.5. Direct-fit for the tie rod end, it provides smooth pivot action, minimal play and dependable steering response. Ideal for restoration projects, returning classic steering geometry to proper specification, or replacing a worn joint.
Fits:
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
356040008
The product you are viewing cross references to these numbers
Restore the steering precision and integrity of your Porsche 356 with this ball joint, designed for the longer tie rod version. Suited for Porsche 356 models from 1950 to 1957, this ball joint accepts the conus FI10,7 / FI12,2 specification and features a housing thread of M14 × 1.5. Direct-fit for the tie rod end, it provides smooth pivot action, minimal play and dependable steering response. Ideal for restoration projects, returning classic steering geometry to proper specification, or replacing a worn joint.
Fits:
- Porsche 356 1950-55
What This Product Does:
- A ball joint provides a spherical pivot point that allows the tie rod to articulate in multiple directions (as the steering knuckle and linkage move) while maintaining a robust connection.
- In this context, the “longer tie rod” for the 356 uses this ball joint at the end of the tie rod so the linkage can articulate and steer correctly.
- As part of the steering linkage, this ball joint ensures smooth steering movement, correct tie rod/track rod geometry, maintains alignment, and helps transmit steering input to the wheels reliably.
- Because it’s a pivot in the steering linkage, it must minimise play, move freely in all required directions, and handle load (steering forces, road inputs) without excessive wear.
Symptoms Of Wear Or Failure:
- Excessive steering play or looseness, especially front centre or in the tie rod linkage — the ball joint’s socket may have developed excessive clearance.
- Clunking or knocking noises from the front when turning the wheel or when going over bumps — a worn ball joint may allow movement that causes noise. General symptoms of worn ball joints: “Clunking or rattling noise… loose or pulling steering… uneven tire wear”
- Uneven tyre wear, particularly on the front steer tyres — a worn tie-rod ball joint allows alignment to shift under load.
- Steering feel degraded — less precise, vague, perhaps the car doesn’t respond as crisply to steering input.
- On inspection: the joint may show torn boot or weathered/aged rubber, corrosion, play when you physically move the tie rod end and check for movement in the ball joint.
- Because this is a component of the 356’s older steering linkage, age-related wear, corrosion or fatigue are likely.
Why Replacement Matters:
- Safety & Steering Precision: The ball joint is a critical link in the steering chain of a 356. A failed joint can compromise steering control, alignment and vehicle stability.
- Alignments & Tyre Life: A worn ball joint allows the tie rod geometry to shift as the vehicle is driven, causing misalignment, tyre wear, and steering problems. Replacing it restores correct geometry tolerance and helps retain proper alignment.
- Restoration & Originality: For a classic Porsche 356, fitting a correct part (356 040 008) ensures the steering system is period-correct and reliable — an important factor for value and performance.
- Prevents further damage: If the ball joint is worn, other components (tie rod, track rod, pitman arm, steering knuckle) may be stressed or move unexpectedly, leading to further wear. Proactive replacement avoids cascading issues.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
356040008
35647306
The product you are viewing cross references to these numbers
Prices from: £22.65
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Information
Front bump steer kit replaces factory steering tie rods. Price per EACH. Requires 2 per car.
Replacement for 99634713104, 99634713103, 99134713100,
Fits:
Porsche 996
Porsche 997
Porsche 987 Boxster
Porsche 987 Cayman
Porsche 991
Porsche 981 Boxster
Porsche 981 Cayman
If you're serious about how your 996, 997, 986 Boxster, 987 Boxster, 987 Cayman, 991, 981 Boxster and 981 Cayman handles, you should upgrade the factory tie rods with an adjustable bump steer kit. There is one major drawback to the factory tie rods, bump steer. Bump steer results from a tie rod that is angled from the steering rack to the spindle. An angled tie rod end will have a larger horizontal travel distance than the rest of the suspension, compared to a level link. Rennline's adjustable bump steer kits solve this problem. Manufactured from 6061 aluminum and feature a turnbuckle design that allow each arm to be lengthened or shortened as needed to restore proper suspension geometry on a lowered Porsche. A number of spacers are also included and can be added or removed accordingly to get a level tie rod for your vehicles specific ride height. The FK Teflon-lined rod end bearings ensure precision handling and lock in your car’s alignment settings, ensuring predictable cornering under all conditions.
Note: 2 kits required per car. Rubber Boots not included but available separately.
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S7510
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Replacement for 99634713104, 99634713103, 99134713100,
Fits:
Porsche 996
Porsche 997
Porsche 987 Boxster
Porsche 987 Cayman
Porsche 991
Porsche 981 Boxster
Porsche 981 Cayman
If you're serious about how your 996, 997, 986 Boxster, 987 Boxster, 987 Cayman, 991, 981 Boxster and 981 Cayman handles, you should upgrade the factory tie rods with an adjustable bump steer kit. There is one major drawback to the factory tie rods, bump steer. Bump steer results from a tie rod that is angled from the steering rack to the spindle. An angled tie rod end will have a larger horizontal travel distance than the rest of the suspension, compared to a level link. Rennline's adjustable bump steer kits solve this problem. Manufactured from 6061 aluminum and feature a turnbuckle design that allow each arm to be lengthened or shortened as needed to restore proper suspension geometry on a lowered Porsche. A number of spacers are also included and can be added or removed accordingly to get a level tie rod for your vehicles specific ride height. The FK Teflon-lined rod end bearings ensure precision handling and lock in your car’s alignment settings, ensuring predictable cornering under all conditions.
Note: 2 kits required per car. Rubber Boots not included but available separately.
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99634713104
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Price: £241.00
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Information
Track Rod.
Fits:
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Porsche 981C Cayman 2014 - 2016
Porsche 991 Carrera 2012 - 2016
Porsche 991 Turbo 2014 - 2016
Porsche 991 GT3 2014 - 2016
Price is for each
Diagram ref no 8
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The product you are viewing cross references to these numbers
Fits:
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Porsche 991 GT3 2014 - 2016
Price is for each
Diagram ref no 8
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- Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
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Information
Lock nut for Steering rack tie rod end, M12 x 1,5
This Genuine Porsche lock nut is an OE M12 x 1.5 fastening nut used for securing steering rack tie rod end and related chassis components on selected Porsche 993, 996, 997, 991, Boxster, Cayman and 970 Panamera models. It is ideal for replacing damaged, corroded or previously removed nuts during steering, suspension or chassis repairs.
Sold individually, 2 required per vehicle
Fits:
Porsche 993 1995 - 1998
Porsche 996 1998 - 2005
Porsche 997.1 2005 - 2008
Porsche 997.2 2009 - 2012
Porsche 991.1 2012 - 2016
Porsche 991.2 2017 - 2019
Porsche Boxster 986 1997 - 2004
Porsche Boxster 987.1 2005 - 2008
Porsche Boxster 987.2 2009 - 2012
Porsche Boxster 981 2012 - 2016
Porsche Cayman 987.1 2005 - 2008
Porsche Cayman 987.2 2009 - 2012
Porsche Cayman 981 2012 - 2016
Porsche 970.1 Panamera 2009 - 2013
Porsche 970.2 Panamera 2014 - 2016
Diagram ref no 10
This lock nut fits in the steering and chassis assembly, commonly used at the steering rack tie rod end / track rod end connection. Depending on model and application, M12 x 1.5 lock nuts may also appear in suspension and control arm fastening locations.
This is a small but important OE Porsche hardware item that helps secure critical chassis and steering components to the correct factory standard.
Functions
• Secures the steering rack tie rod end connection
• Provides a factory-correct M12 x 1.5 locking fastening point
• Helps maintain secure attachment of steering and chassis components
• Supports correct steering geometry and component stability
• Helps prevent loosening caused by vibration, road loads and suspension movement
• Suitable for replacement during steering rack, track rod or tie rod end work
• Maintains OE Porsche fitment and fastening quality.
Lock nuts are designed to provide secure fastening and are often recommended for replacement after removal, especially on steering and suspension components. Over time, the nut can corrode, seize, round off or lose its locking effectiveness. Replacing the original nut with a Genuine Porsche OE M12 x 1.5 lock nut helps ensure the tie rod end or related component is secured correctly and safely. This is especially important on steering components, where correct fastening is essential for accurate steering response and road safety.
When to replace
• When replacing a steering rack tie rod end or track rod end
• When removing or refitting steering rack components
• If the original nut is corroded, seized or damaged
• If the nut thread is worn or the locking function is compromised
• During suspension or steering overhaul work
• After accident repair or chassis component replacement
• When restoring the car with correct OE Porsche hardware.
Related reference numbers
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99908444909
The product you are viewing cross references to these numbers
This Genuine Porsche lock nut is an OE M12 x 1.5 fastening nut used for securing steering rack tie rod end and related chassis components on selected Porsche 993, 996, 997, 991, Boxster, Cayman and 970 Panamera models. It is ideal for replacing damaged, corroded or previously removed nuts during steering, suspension or chassis repairs.
Sold individually, 2 required per vehicle
Fits:
Porsche 993 1995 - 1998
Porsche 996 1998 - 2005
Porsche 997.1 2005 - 2008
Porsche 997.2 2009 - 2012
Porsche 991.1 2012 - 2016
Porsche 991.2 2017 - 2019
Porsche Boxster 986 1997 - 2004
Porsche Boxster 987.1 2005 - 2008
Porsche Boxster 987.2 2009 - 2012
Porsche Boxster 981 2012 - 2016
Porsche Cayman 987.1 2005 - 2008
Porsche Cayman 987.2 2009 - 2012
Porsche Cayman 981 2012 - 2016
Porsche 970.1 Panamera 2009 - 2013
Porsche 970.2 Panamera 2014 - 2016
Diagram ref no 10
This lock nut fits in the steering and chassis assembly, commonly used at the steering rack tie rod end / track rod end connection. Depending on model and application, M12 x 1.5 lock nuts may also appear in suspension and control arm fastening locations.
This is a small but important OE Porsche hardware item that helps secure critical chassis and steering components to the correct factory standard.
Functions
• Secures the steering rack tie rod end connection
• Provides a factory-correct M12 x 1.5 locking fastening point
• Helps maintain secure attachment of steering and chassis components
• Supports correct steering geometry and component stability
• Helps prevent loosening caused by vibration, road loads and suspension movement
• Suitable for replacement during steering rack, track rod or tie rod end work
• Maintains OE Porsche fitment and fastening quality.
Lock nuts are designed to provide secure fastening and are often recommended for replacement after removal, especially on steering and suspension components. Over time, the nut can corrode, seize, round off or lose its locking effectiveness. Replacing the original nut with a Genuine Porsche OE M12 x 1.5 lock nut helps ensure the tie rod end or related component is secured correctly and safely. This is especially important on steering components, where correct fastening is essential for accurate steering response and road safety.
When to replace
• When replacing a steering rack tie rod end or track rod end
• When removing or refitting steering rack components
• If the original nut is corroded, seized or damaged
• If the nut thread is worn or the locking function is compromised
• During suspension or steering overhaul work
• After accident repair or chassis component replacement
• When restoring the car with correct OE Porsche hardware.
Related reference numbers
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99908444909
99908444909
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Price: £3.29
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Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- 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 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
Information
Front toe steer / bump steer kit XLARGE.
SET OF 2
replacement for 99634713104, 99634713103, 99134713100,
Fits:
FOR ALL Porsche 981, 982, GT4, 991 INCLUDING TURBO & GT3/GT3RS.
Also would fit Porsche 986, 996, 997, 987 that are running extreme amounts of negative camber or that have widened the front track width.
The RSS Adjustable Front Toe/Bump Steer XL Kit is designed for Porsche models that have been lowered. This kit will help minimize the suspension geometry change in the front of the vehicle. Allows for bump steer adjustment. Improves handling, feedback and control.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
371
The product you are viewing cross references to these numbers
SET OF 2
replacement for 99634713104, 99634713103, 99134713100,
Fits:
FOR ALL Porsche 981, 982, GT4, 991 INCLUDING TURBO & GT3/GT3RS.
Also would fit Porsche 986, 996, 997, 987 that are running extreme amounts of negative camber or that have widened the front track width.
The RSS Adjustable Front Toe/Bump Steer XL Kit is designed for Porsche models that have been lowered. This kit will help minimize the suspension geometry change in the front of the vehicle. Allows for bump steer adjustment. Improves handling, feedback and control.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
371
371
99634713104
99634713103
99134713100
99634713105
99634713101
99634713102
The product you are viewing cross references to these numbers
Price: £521.00
In stock