Electric Receptacle Cap and Retainer Ring Pair Part number 20983936. Fits GMIMK00020. Key benefits Protects electrical receptacles from dirt, dust, and road debris to help maintain reliable connections. Secures the receptacle with a matched retainer ring to prevent unintentional disconnection during vibration or movement. Supplied as a pair for complete replacement of the cap and its retaining ring, making maintenance straightforward. What it does and why you need it Function: the cap covers the receptacle contact area while the retainer ring locks the cap in place, preserving connector integrity and reducing the risk of intermittent electrical faults. Problem solved: replaces worn, cracked, or missing caps and rings that expose the connector to contaminants and mechanical stress. Standout point: specifically sized to fit GMIMK00020 receptacles for a direct fit, minimizing fitment issues and installation time. Key attributes Compatibility: confirmed fit with GMIMK00020 receptacle configuration. Part number 20983936 identifies this replacement pair. Material: durable molded plastic construction designed for outdoor and vehicle use. Size and fit: manufactured to match the receptacle dimensions of GMIMK00020 for proper sealing and retention. Performance: provides a secure hold and protection under normal vehicle operating conditions, extending connector service life. Practical applications Fleet maintenance: damaged caps and rings on service vehicles to reduce connector failures and downtime. Trailer and towing connectors: restore protection and secure retention on trailer receptacles exposed to road conditions. Routine vehicle : quick replacement during electrical connector service or when replacing related modules that use GMIMK00020 fittings. Installation and notes Includes one cap and one retainer ring as a pair for a single receptacle. Designed for straightforward replacement; basic tools may be required depending on vehicle access. Verify part number 20983936 and GMIMK00020 compatibility before installation to ensure correct fit. this exact cap and retainer ring pair to restore protection and secure retention for GMIMK00020 receptacles.