Replaces front crankshaft seal on BMW B37, B47, B48, B57, B58, N47 & N57 engines Features: Compare to BMW Factory Tool 118 800 Components: 3881X01 – Press Sleeve, 3881X02 – Guide Tool, 3881X03 – Nut & 3881X04 – Screws Visit ctatools.com for product instructions
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Why a strut nut socket? To secure shocks and struts to their mounts, the retaining nut must be torqued to its proper specification using a torque wrench. Strut nut sockets allow for the use of a 21mm wrench to hold the damper shaft allowing you to achieve proper torque. An improper torque value may result in premature mount failure - or worse.
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