  We study in detail the collider signatures of an $SU(2)_R$ fermionic
quintuplet in the framework of left-right symmetric model in the context of the
13 TeV LHC. Apart from giving a viable dark matter candidate ($\chi^0$), this
model provides unique collider imprints in the form of same-sign multileptons
through the decays of multi-charged components of the quintuplet. In
particular, we consider the scenario where the quintuplet carries $(B - L) = 4$
charge, allowing for the presence of high charge-multiplicity particles with
relatively larger mass differences among them compared to $(B - L)$ = 0 or 2.
In this paper, we mainly focus on the same-sign n-lepton signatures (nSSL). We
show that with an integrated luminosity of 500 $fb^{-1}$, the mass of the
neutral component, $M_{\chi^0} \leq 480~(800)$ GeV can be excluded at 95\% CL
in the 2SSL (3SSL) channel after imposing several selection criteria. We also
show that a $5\sigma$ discovery is also achievable if $M_{\chi^0} \leq
390~(750)$ GeV in the 2SSL (3SSL) channel with 1000 $fb^{-1}$ integrated
luminosity.
