Description
Audi RS4 / S4 / A4 Rear lower control arm – rear bush SPORT
Strongflex – 021978A
The Strongflex 021978A is a polyurethane rear bush for the rear lower control arm with a hardness of 90ShA (yellow, SPORT). It replaces the soft OEM rubber, giving more precise geometry, better control and greater durability for fast road, drift and track use.
Compatible with:
- Audi A4 B8 (2007–2015) FWD / Quattro & Allroad / S4 / RS4
- Audi A5 8T (2007–2016) FWD / Quattro / S5 / RS5
- Audi A6 C7 (2011–2018) FWD / Quattro & Allroad / S6 / RS6
- Audi A7 C7 (2010–2017) FWD / Quattro / S7 / RS7
- Audi A8 D4 (2009–2017) FWD / Quattro / S8
- Audi Q5 8R (2008–2016) FWD / Quattro / SQ5
- Porsche Macan (2013 onwards)
Delivery & fitting
- Hardness: 90ShA
- Material: Polyurethane (PUR/PU)
- Diagrams: D0217
- Includes assembly grease for easy fitting
For many BMW models we stock the Strongflex SPORT (yellow) range; everything else is delivered very quickly, in around 4 to 7 days.
Specifications
- Required per car: 2
- Pieces per pack: 1
- OEM number(s): 8K0505171E
- Hardness: 90ShA (SPORT)
- Material: Polyurethane (PUR/PU)












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