A new model of a quarter of a vehicle,including the elastomeric elements in its suspension system is used to analyze the effect of each element on the vibration transmissibi- lity of the system.Analytical results show that the overall effects of the elastomeric elements are:① reducing the transmissibility around the vehicle body natural frequency;② increasing the transmissibility around the vehicle wheel natural frequency;and ③ decidedly improving the vibration isolation at the range of high frequency.