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Elring 784.750 Engine Coolant Bypass Line Seal RingOE Quality 60-Day Returns
Part #: 784.750

Elring 784.750 Engine Coolant Bypass Line Seal Ring

77 vehicles fit this part
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Fitment: Audi, Porsche, and Volkswagen, A4 Quattro, A5, A5 Quattro, A6, A6 Quattro, A7 Quattro, A8 Quattro, Cayenne, Panamera, Q5, Q7, S4, S5, SQ5, and Touareg
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Not what you need? See all Engine Coolant Bypass Line Seal Ring options

Engine Coolant Bypass Line Seal Ring

Elring 784.750 is an engine coolant bypass line seal ring for select Audi, Volkswagen, and Porsche applications. It is used in cooling-system sealing points where a precise seal is needed to maintain coolant flow integrity and reduce leakage at the bypass line connection.

Key Features

  • Elring replacement seal ring for engine coolant bypass line service
  • Direct-fit sealing component for select Audi A8 Quattro, Q5, S5, SQ5, A5, A6, A7, A4 Quattro, Q7, Volkswagen Touareg, Porsche Cayenne, and Panamera applications
  • Part number 784.750 for catalog and service identification
  • Cross-references OE numbers 06E 121 119 D and 958 106 619 00 for the same application

Fitment

  • Fits 2013-2018 Audi A8 Quattro
  • Fits 2010-2018 Volkswagen Touareg
  • Fits 2013-2017 Audi Q5
  • Fits 2010-2017 Audi S5
  • Fits 2014-2017 Audi SQ5
  • Fits 2011-2017 Porsche Cayenne
  • Fits 2015-2016 Audi A5
  • Fits 2015-2016 Audi A5 Quattro, charge air cooler
  • Fits 2016 Audi A6
  • Fits 2010-2016 Audi S4
  • Fits 2012-2016 Porsche Panamera
  • Fits 2009-2015 Audi A6 Quattro
  • Fits 2012-2015 Audi A7 Quattro
  • Fits 2011-2015 Audi Q7
  • Fits 2013-2014 Audi A4 Quattro
  • Fits 2012-2014 Audi A5 Quattro

What It Is Used For

  • Sealing a coolant bypass line connection during cooling-system repair
  • Replacing a worn, flattened, or heat-aged seal ring
  • Addressing coolant seepage at the bypass line interface
  • Restoring sealing performance after coolant pipe or line service

Installation Notes and Tips

Confirm the OE number and vehicle application before installation. Clean the sealing surfaces thoroughly, inspect the mating components for wear or damage, and replace the seal ring whenever the bypass line is removed to help maintain a proper seal. For fitment searches, this part is commonly referenced for Audi A8 Quattro, Audi Q5, and Porsche Cayenne cooling-system service.

Quality Assurance

Elring is a recognized OE-focused sealing brand, and part 784.750 is cataloged to match the listed factory applications. Verify the part number 784.750 against the vehicle’s original coolant bypass line seal before installation.

This part fits 77 vehicles. Search below:

YearMakeModelSubmodelBody TypeDrive TypeLitersCylindersFuel TypePositionNotes
2018AudiA8 QuattroAWD3.0LV6GASN/A
2018VolkswagenTouaregWolfsburgSport UtilityAWD3.0LV6N/A
2017AudiA8 QuattroAWD3.0LV6GASN/A
2017AudiQ5AWD3.0LV6GASN/A
2017AudiS5AWD3.0LV6GASN/A
2017AudiSQ5AWD3.0LV6GASN/A
2017PorscheCayenneAWD3.0LV6ELECTRIC/GASN/A
2017VolkswagenTouaregAWD3.0LV6ELECTRIC/GASN/A
2016AudiA5AWD3.0LV6GASN/A
2016AudiA5 Quattro3.0LV6GASN/AFitting Position : Charge Air Cooler
2016AudiA6EliteSedanFWD3.0LV6N/A
2016AudiA8 QuattroAWD3.0LV6GASN/A
2016AudiQ5AWD3.0LV6GASN/A
2016AudiS4AWD3.0LV6GASN/A
2016AudiS5AWD3.0LV6GASN/A
2016AudiSQ5AWD3.0LV6GASN/A
2016PorscheCayenneAWD3.0LV6ELECTRIC/GASN/A
2016PorschePanameraRWD3.0LV6ELECTRIC/GASN/A
2016VolkswagenTouaregComfortlineSport UtilityAWD3.0LV6N/A
2015AudiA5AWD3.0LV6GASN/A
2015AudiA5 Quattro3.0LV6GASN/AFitting Position : Charge Air Cooler
2015AudiA6 QuattroAWD3.0LV6GASN/A
2015AudiA7 QuattroAWD3.0LV6GASN/A
2015AudiA8 QuattroAWD3.0LV6GASN/A
2015AudiQ5AWD3.0LV6GASN/A
2015AudiQ7AWD3.0LV6GASN/A
2015AudiS4AWD3.0LV6GASN/A
2015AudiS5AWD3.0LV6GASN/A
2015AudiSQ5AWD3.0LV6GASN/A
2015PorscheCayenneAWD3.0LV6ELECTRIC/GASN/A
2015PorschePanameraRWD3.0LV6ELECTRIC/GASN/A
2015VolkswagenTouaregAWD3.0LV6ELECTRIC/GASN/A
2014AudiA4 QuattroAWD3.0LV6GASN/A
2014AudiA5 QuattroAWD3.0LV6GASN/A
2014AudiA6 QuattroAWD3.0LV6GASN/A
2014AudiA7 QuattroAWD3.0LV6GASN/A
2014AudiA8 QuattroAWD3.0LV6GASN/A
2014AudiQ5AWD3.0LV6GASN/A
2014AudiQ7AWD3.0LV6GASN/A
2014AudiS4AWD3.0LV6GASN/A
2014AudiS5AWD3.0LV6GASN/A
2014AudiSQ5AWD3.0LV6GASN/A
2014PorscheCayenneAWD3.0LV6ELECTRIC/GASN/A
2014PorschePanameraRWD3.0LV6ELECTRIC/GASN/A
2014VolkswagenTouaregAWD3.0LV6ELECTRIC/GASN/A
2013AudiA4 QuattroAWD3.0LV6GASN/A
2013AudiA5 QuattroAWD3.0LV6GASN/A
2013AudiA6 QuattroAWD3.0LV6GASN/A
2013AudiA7 QuattroAWD3.0LV6GASN/A
2013AudiA8 QuattroAWD3.0LV6GASN/A
2013AudiQ5AWD3.0LV6GASN/A
2013AudiQ7AWD3.0LV6GASN/A
2013AudiS4AWD3.0LV6GASN/A
2013AudiS5AWD3.0LV6GASN/A
2013PorscheCayenneAWD3.0LV6ELECTRIC/GASN/A
2013PorschePanameraRWD3.0LV6ELECTRIC/GASN/A
2013VolkswagenTouaregAWD3.0LV6ELECTRIC/GASN/A
2012AudiA5 QuattroAWD3.0LV6GASN/A
2012AudiA6 QuattroAWD3.0LV6GASN/A
2012AudiA7 QuattroAWD3.0LV6GASN/A
2012AudiQ7AWD3.0LV6GASN/A
2012AudiS4AWD3.0LV6GASN/A
2012AudiS5AWD3.0LV6GASN/A
2012PorscheCayenneAWD3.0LV6ELECTRIC/GASN/A
2012PorschePanameraRWD3.0LV6ELECTRIC/GASN/A
2012VolkswagenTouaregAWD3.0LV6ELECTRIC/GASN/A
2011AudiA6 QuattroAWD3.0LV6GASN/A
2011AudiQ7AWD3.0LV6GASN/A
2011AudiS4AWD3.0LV6GASN/A
2011AudiS5AWD3.0LV6GASN/A
2011PorscheCayenneAWD3.0LV6ELECTRIC/GASN/A
2011VolkswagenTouaregAWD3.0LV6ELECTRIC/GASN/A
2010AudiA6 QuattroAWD3.0LV6GASN/A
2010AudiS4AWD3.0LV6GASN/A
2010AudiS5AWD3.0LV6GASN/A
2010VolkswagenTouaregTDISport UtilityAWD3.0LV6N/A
2009AudiA6 QuattroAWD3.0LV6GASN/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:

06E 121 119 D06E 121 119 J958 106 619 00958 106 619 01

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