supply of kit for unloader exhaust valve as per frtripl part no. 790002165, consisting of 04 ite ms as given below: 1.valve stem assembly to frtripl part no. 002120000, qty/set -1 pce, 2.o-ring (i d-28.17 x width-3.53) to frtripl part no. 003703500a,qty/set -1 pce, 3.gasket (47 x 57 x 1) to frt ripl part no. 001713500, qty/set -1 pce, 4.spring to frtripl part no. 002832000, qty/set -1 pce [ w arranty period: 30 months after the date of delivery ] ] mldt dpeot, nfr - kit for unloader exhaust