These spare parts for 4L are used to repair the rear attachment at the end of the side member. This part allows the fixing of the rear torsion bars of your R4. There is a left side and a right side. There is also a change of model during the production of the R4, take care when choosing your spare part, that it suits your vehicle. If you need to repair your chassis, we also suggest you take a look at this 4L part that we have developed: Find the chassis repair items by following this link 🙂