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  1. M

    Cat 257B S/N SLK 02102 Auxillary Hydraulic Solenoid Value Coil part

    The part number on my coils seems to obselete (155-4426-04 on one side and CAT 4278 on the other) and Cat parts can't seem to cross reference, worktool switches quit working and continuity on both of these coils was like 2.0 when I've read it should be 10.5 or something, how can I find these...
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