Original Makita balance plate — part no. 313108-4. A compact, precision metal plate that fits into the crank/push-plate area of Makita corded jigsaws to restore proper counterweighting and reduce vibration for smoother reciprocating action. Fits Makita jigsaw models such as 4340FCT and 4350CT (also used across the 4340/4350 series — verify against your tool’s parts diagram).
This genuine Makita replacement is listed in Makita parts documentation as "Balance Plate" (313108-4) and installs directly where the crank assembly and push plate meet, making it an exact-match repair for worn or damaged plates.
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