TRW GS8531 Fren Sistemleri Fren Pabucu, CITROËN ZX (N2), CITROËN ZX Break (N2), CITROËN XSARA (N1), CITROËN XSARA Coupe (N0), PEUGEOT 306 Hatchback (7A, 7C, N3, N5), PEUGEOT 306 (7B, N3, N5), PEUGEOT 306 Cabrio (7D, N3, N5), PEUGEOT 306 Kombi van (N_, 7_) modelleri ile uyumludur.