  We revisit the planetary microlensing event
OGLE-2013-BLG-0132/MOA-2013-BLG-148 using Keck adaptive optics imaging in 2013
with NIRC2 and in 2020, 7.4 years after the event, with OSIRIS. The 2020
observations yield a source and lens separation of $ 56.91 \pm 0.29$ mas, which
provides us with a precise measurement of the heliocentric proper motion of the
event $\mu_{rel,hel} = 7.695 \pm 0.039$ mas $yr^{-1}$. We measured the
magnitude of the lens in K-band as $K_{lens} = 18.69 \pm 0.04 $. Using these
constraints, we refit the microlensing light curve and undertake a full
reanalysis of the event parameters including the microlensing parallax
$\pi_{E}$ and the distance to the source D$_S$. We confirm the results obtained
in the initial study by \cite{Mroz_2017} and improve significantly upon the
accuracy of the physical parameters. The system is an M dwarf of $0.495 \pm
0.054$ $M_\odot$ orbited by a cold, Saturn-mass planet of $0.26 \pm 0.028$
$M_{Jup}$ at projected separation $r_{\perp}$ = 3.14 $\pm$ 0.28 AU. This work
confirms that the planetary system is at a distance of 3.48 $\pm$ 0.36 kpc,
which places it in the Galactic disk and not the Galactic bulge.
