Genuine Makita torsion (return) spring, part number 231660-9 — a small, tightly wound return spring used on the blade/lever assembly to restore consistent return action and tension in compatible Makita jigsaws and reciprocating saws.
This original Makita part is supplied individually and is the direct replacement specified for the mechanism that controls blade/lever return and position; it’s the same style of torsion coil used across several Makita jig/reciprocating models.
Fits (example models): 4340CT, 4340FCT, 4341CT, 4341FCT, 4350CT, 4350FCT, 4351FCT, BJV140, BJV180, JR1000FT.
If your tool shows weak or inconsistent return action, a fresh 231660-9 torsion spring will restore the correct spring tension and smooth operation without any modification.
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