{HEAD ~ The variable coolant pump} 1, further comprising {TAIL ~ a return spring}, arranged to pretension the guide disc towards the impeller via the piston 
comprising
{ HEAD ~ The variable coolant pump } 1 , further comprising { TAIL ~ a return spring } , arranged to pretension the guide disc towards the impeller via the piston
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH