  We describe the installation, commissioning, and characterization of the new
injection kicker system in the Muon $g-2$ Experiment (E989) at Fermilab, which
makes a precision measurement of the muon magnetic anomaly. Three Blumlein
pulsers drive each of the 1.27-m-long non-ferric kicker magnets, which reside
in a storage ring vacuum (SRV) that is subjected to a 1.45 T magnetic field.
The new system has been redesigned relative to Muon $g-2$'s predecessor
experiment, and we present those details in this manuscript.
