Elring 178.950 Manual Transmission Main Shaft Seal

Name: Elring 178.950 Manual Transmission Main Shaft Seal
Brand: Elring
SKU: DTWD-178.950
Price: 13.23 USD
Availability: InStock

⚙️ 113 vehicles fit this part

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✅OE Direct Replacement — Bolt-on fit, no modifications needed

🚗Fitment: Audi, 80, 90 Quattro, 200, 200 Quattro, 80 Quattro, 5000, and 5000 Quattro

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Reliable Manual Transmission Main Shaft Seal for Audi and Porsche

The Elring 178.950 manual transmission main shaft seal is engineered to provide effective sealing and protection for your vehicle's transmission system. Designed specifically for select Audi and Porsche models, this seal ensures durability and optimal performance under demanding conditions.

Inside diameter: 24.9 mm for precise fitment
Thickness: 8.0 mm ensuring proper sealing depth
Outside diameter: 40.0 mm for secure installation
Constructed from ACM (polyacrylate) material for resistance to heat and wear
Includes a dust lip to prevent contamination
Radial shaft seal design (ASW) for effective sealing
Swirl type: RD to enhance sealing efficiency

Technical Details and Material Specifications

The Elring 178.950 main shaft seal is manufactured using ACM (polyacrylate), a material known for its excellent resistance to heat, oil, and aging. The seal features a dust lip that helps protect the transmission internals from dirt and debris, extending the life of your manual transmission. Its radial shaft seal design (ASW) and swirl type (RD) contribute to maintaining a tight seal around the main shaft, reducing the risk of leaks and contamination. With an inside diameter of 24.9 mm, thickness of 8.0 mm, and outside diameter of 40.0 mm, this seal is engineered for a precise fit in compatible transmissions.

Compatible Vehicles and Applications

This manual transmission main shaft seal is compatible with a range of Audi and Porsche models, including Audi 80, 80 Quattro, 90, 90 Quattro, 100, 100 Quattro, 200, 200 Quattro, and 5000 Quattro, as well as Porsche 718 Boxster, 718 Cayman, and 718 Spyder. The part number 178.950 ensures you are selecting the correct seal for these specific vehicles.

Common Issues Addressed by the Main Shaft Seal

Prevents transmission fluid leaks around the main shaft
Protects against dirt and dust ingress with integrated dust lip
Reduces wear on transmission components by maintaining proper lubrication
Helps avoid transmission overheating caused by fluid loss
Maintains transmission efficiency and prolongs service life

Installation Notes and Tips

When installing the Elring 178.950 main shaft seal, ensure the transmission housing and shaft are clean and free of debris. Use appropriate tools to avoid damaging the seal during installation. Verify the seal orientation, especially the dust lip, to ensure it faces outward to block contaminants. It is recommended to inspect related transmission components for wear or damage during replacement.

Quality Assurance and Warranty

Elring manufactures the 178.950 main shaft seal to meet strict quality standards, ensuring reliable performance and durability. The use of ACM material and precise engineering supports long-term sealing effectiveness. Warranty coverage details should be confirmed with the supplier or manufacturer, as they may vary by region.

Brand	Elring
Part Number	178.950
Dust Cover	with dust lip
Inside Diameter	24.9
Material	ACM (Polyacrylate)
Outside Diameter	40.0
Radial Shaft Seal Design	ASW
Swirl Type	RD
Thickness	8.0

This part fits 113 vehicles. Search below:

Year	Make	Model	Submodel	Body Type	Drive Type	Transmission	Liters	Cylinders	Fuel Type	Position	Notes
2023	Porsche	718 Boxster					4.0L	H6	GAS	N/A
2023	Porsche	718 Cayman					4.0L	H6	GAS	N/A
2023	Porsche	718 Spyder					4.0L	H6	GAS	N/A
2022	Porsche	718 Boxster					4.0L	H6	GAS	N/A
2022	Porsche	718 Cayman					4.0L	H6	GAS	N/A
2022	Porsche	718 Spyder					4.0L	H6	GAS	N/A
2021	Porsche	718 Boxster					4.0L	H6	GAS	N/A
2021	Porsche	718 Cayman					4.0L	H6	GAS	N/A
2021	Porsche	718 Spyder					4.0L	H6	GAS	N/A
2020	Porsche	718 Boxster					2.5L	H4	GAS	N/A
2020	Porsche	718 Cayman					4.0L	H6	GAS	N/A
2020	Porsche	718 Spyder					4.0L	H6	GAS	N/A
2019	Porsche	718 Boxster					2.5L	H4	GAS	N/A
2019	Porsche	718 Cayman					2.5L	H4	GAS	N/A
2018	Porsche	718 Boxster					2.5L	H4	GAS	N/A
2018	Porsche	718 Cayman					2.5L	H4	GAS	N/A
2017	Porsche	718 Boxster					2.5L	H4	GAS	N/A
2017	Porsche	718 Cayman					2.5L	H4	GAS	N/A
2011	Audi	A6	Base	Sedan	FWD		3.2L	V6		N/A
2011	Audi	A6 Quattro	Avant	Wagon	AWD		3.0L	V6		N/A
2010	Audi	A6	Base	Sedan	FWD		3.2L	V6		N/A
2010	Audi	A6 Quattro	Base	Sedan	AWD		4.2L	V8		N/A
2010	Audi	RS6	Avant	Wagon	AWD		5.0L	V10		N/A
2010	Audi	S8	Base	Sedan	AWD		5.2L	V10		N/A
2009	Audi	A4	Cabriolet	Convertible	FWD		2.0L	L4		N/A
2009	Audi	A6	Base	Sedan	FWD		3.2L	V6		N/A
2009	Audi	A6 Quattro	Base	Sedan	AWD		4.2L	V8		N/A
2009	Audi	S8	Base	Sedan	AWD		5.2L	V10		N/A
2008	Audi	A4	Base	Sedan	FWD		3.2L	V6		N/A
2008	Audi	A6	Luxury	Sedan	FWD		2.8L	V6		N/A
2008	Audi	A6 Quattro	Base	Sedan	AWD		4.2L	V8		N/A
2008	Audi	RS4	Base	Sedan	AWD		4.2L	V8		N/A
2008	Audi	S8	Base	Sedan	AWD		5.2L	V10		N/A
2007	Audi	A4	Elite	Sedan	FWD		3.2L	V6		N/A
2007	Audi	A6 Quattro	Base	Sedan	AWD		4.2L	V8		N/A
2007	Audi	RS4	Base	Sedan	AWD		4.2L	V8		N/A
2007	Audi	S8	Base	Sedan	AWD		5.2L	V10		N/A
2006	Audi	A4	Elite	Sedan	FWD		3.2L	V6		N/A
2006	Audi	A6	Elite	Sedan	FWD		3.0L	V6		N/A
2006	Audi	S4	Avant	Wagon	AWD		4.2L	V8		N/A
2005	Audi	A4	Elite	Sedan	FWD		3.2L	V6		N/A
2005	Audi	A6	Confort	Sedan	FWD		3.0L	V6		N/A
2005	Audi	S4	Avant	Wagon	AWD		4.2L	V8		N/A
2004	Audi	A4	Avant	Wagon	FWD		3.0L	V6		N/A
2004	Audi	A6	Base	Sedan	FWD		3.0L	V6		N/A
2004	Audi	RS6	Base	Sedan	AWD		4.2L	V8		N/A
2004	Audi	S4	Avant	Wagon	AWD		4.2L	V8		N/A
2003	Audi	A4	Base	Sedan	FWD		1.8L	L4		N/A
2003	Audi	A4 Quattro	Avant	Wagon	AWD		3.0L	V6		N/A
2003	Audi	A6	Base	Sedan	FWD		3.0L	V6		N/A
2003	Audi	RS6	Base	Sedan	AWD		4.2L	V8		N/A
2002	Audi	A4	Base	Sedan	FWD		1.8L	L4		N/A
2002	Audi	A4 Quattro	Avant	Wagon	AWD		3.0L	V6		N/A
2002	Audi	A6	Base	Sedan	FWD		3.0L	V6		N/A
2002	Audi	S4	Avant	Wagon	AWD		2.7L	V6		N/A
2002	Audi	S6	Avant	Wagon	AWD		4.2L	V8		N/A
2001	Audi	A4	Base	Sedan	FWD		2.8L	V6		N/A
2001	Audi	A6	Base	Sedan	FWD		2.8L	V6		N/A
2001	Audi	S4	Avant	Wagon	AWD		2.7L	V6		N/A
2000	Audi	A4	Base	Sedan	FWD		2.8L	V6		N/A
2000	Audi	A6	Base	Sedan	FWD		2.8L	V6		N/A
1999	Audi	A4	Base	Sedan	FWD		2.8L	V6		N/A
1999	Audi	A6	Base	Sedan	FWD		2.8L	V6		N/A
1998	Audi	A4	Base	Sedan	FWD		2.8L	V6		N/A
1998	Audi	A6	Base	Sedan	FWD		2.8L	V6		N/A
1997	Audi	A4	Base	Sedan	FWD		2.8L	V6		N/A
1997	Audi	A6	Avant	Wagon	FWD		2.8L	V6		N/A
1996	Audi	A4	Base	Sedan	FWD		2.8L	V6		N/A
1996	Audi	A6	Avant	Wagon	FWD		2.8L	V6		N/A
1995	Audi	A6	Avant	Wagon	FWD		2.8L	V6		N/A
1995	Audi	S6	Avant	Wagon	AWD		2.2L	L5		N/A
1994	Audi	100					2.8L	V6	GAS	N/A
1994	Audi	100 Quattro					2.8L	V6	GAS	N/A
1993	Audi	100					2.8L	V6	GAS	N/A
1993	Audi	100 Quattro					2.8L	V6	GAS	N/A
1992	Audi	100					2.8L	V6	GAS	N/A
1992	Audi	100 Quattro					2.8L	V6	GAS	N/A
1992	Audi	80				Manual	2.3L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1992	Audi	80 Quattro					2.3L	L5	GAS	N/A
1992	Audi	90 Quattro					2.3L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1991	Audi	100					2.3L	L5	GAS	N/A
1991	Audi	100 Quattro					2.3L	L5	GAS	N/A
1991	Audi	200				Manual	2.2L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1991	Audi	200 Quattro					2.2L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1991	Audi	80				Manual	2.3L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1991	Audi	80 Quattro					2.3L	L5	GAS	N/A
1991	Audi	90					2.3L	L5	GAS	N/A
1991	Audi	90 Quattro					2.3L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1991	Audi	V8 Quattro	Base	Sedan	AWD		3.6L	V8		N/A
1990	Audi	100					2.3L	L5	GAS	N/A
1990	Audi	100 Quattro					2.3L	L5	GAS	N/A
1990	Audi	200				Manual	2.2L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1990	Audi	200 Quattro					2.2L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1990	Audi	80				Manual	2.0L	L4		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1990	Audi	80 Quattro					2.3L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1990	Audi	90					2.3L	L5	GAS	N/A
1990	Audi	90 Quattro					2.3L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1990	Audi	V8 Quattro	Base	Sedan	AWD		3.6L	V8		N/A
1989	Audi	100					2.3L	L5	GAS	N/A
1989	Audi	100 Quattro					2.3L	L5	GAS	N/A
1989	Audi	200				Manual	2.2L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1989	Audi	200 Quattro					2.2L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1989	Audi	80				Manual	2.0L	L4		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1989	Audi	80 Quattro					2.3L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1989	Audi	90					2.3L	L5	GAS	N/A
1989	Audi	90 Quattro					2.3L	L5	GAS	N/A
1988	Audi	5000 Quattro					2.3L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1988	Audi	80				Manual	2.0L	L4		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1988	Audi	80 Quattro					2.3L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1988	Audi	90					2.3L	L5	GAS	N/A
1988	Audi	90 Quattro					2.3L	L5	GAS	N/A
1987	Audi	5000 Quattro					2.3L	L5		N/A	Fitment Note: Width 8mm, Inner Diameter 24.9mm, Outer Diameter 40mm, Dust Cover with dust lip, Swirl Type Right-hand Twist.
1987	Audi	Coupe	GT	Coupe	FWD		2.3L	L5		N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

01036174B01036301B012 311 113 B222540

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.