Materiale - Neoprene
Ø esterno - 32 mm
Ø interno - 11,6 mm
Larghezza - 14,4 mm
De 51mm H 22 mm 12,7 mm Neoprena.
Za motorje YANMAR: 1GM10, 2GM20, 2GM20F, 2GF/GMF20, 2QM20/QM20, 3GM30F, 3JH2/3JH2E/3JH2TE, 3 HM35 3 HM35F, 3HM/HM 35/ HM 35F;
YANMAR (po letu 1997): 1GM20C, 1GM 10, 22GM20C, 2 GM 20, 2 GM 20F, 3 GM 30, 3 GMF 30F, 3GM30(F)C.