Dimmer Switch Connector Email 3-Wire Universal Dimmer Switch Connector Part #: 2538H Part #: 2538H Quantity Price ea. 1 + $17.88 4 + $15.20 15 + $12.52 Sale Price! 15.20 Back to: Aftermarket and Universal Ask a question about this product Universal Double Contact Socket, Neoprene Boot and Plate Dimmer Switch Multi-Application Description 3-Wire Universal Dimmer Switch Connector. From 1959 thru 1983. Replaces GM #88860504 and AC-Delco #PT1949.