Subaru Legacy 2015–2019 — technical service bulletin
Bulletin 07-153-19 · NHTSA communication 10161814 · issued May 7, 2019
Technical service bulletin
communication type
Electrical System
component
2015–2019
model years
10
vehicle entries
Official summary
This service bulletin announces availability of the cap portion (a.k.a. spark plug boot) as a service part separate from the complete ignition coil assembly. If the cap portion as shown in the illustrations below is damaged during removal or replacement, it is no longer necessary to replace the complete ignition coil assembly.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.