Genuine Baby Lock upper-thread (upthread) PCB assembly. This internal circuit board manages the upper-thread handling and sensing system and is installed during service on the Solaris.
Baby Lock compatibility: Baby Lock Solaris (BLSA).
Brother compatibility: Genuine Brother (XH-series) OEM part. The Baby Lock Solaris is Brother’s Luminaire (XP1/XP2/XP3) twin, so this board is expected to fit those models — exact Brother-model fitment is not dealer-confirmed, so verify before ordering for a Brother.
Part #: XH1067001 · Vendor: Tacony