• 13mm square fits Subaru rear differential drain/fill ports perfectly. Manufacturer's Part Number: 521. • Will not strip stuck drain sockets like using a 1/2" extension. Product not designed for use with an impact wrench.
Torque Solution Diff Drain Socket Tool Fits Subaru 13mm Square
1/2" Drive 4-Point Square Socket-13/16", Budd Wheel Impact Socket, CR-MO
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