What This Cap Covers and Why It Matters
The TE Connectivity 4-2407269-3 is a protective cap for the CPC (Circular Plastic Connector) series, specifically sized for a Shell Size 17 receptacle. It keeps dust, debris, and moisture off the contact face when the connector is unmated — a simple polyethylene cover that snaps over the receptacle shell. The red color makes it visible on a harness or panel, so a missing cap is spotted before the connector gets contaminated.
This cap is designed for use with TE CPC receptacles in Shell Size 17. It does not fit other shell sizes — the size 17 interface is specific to the receptacle shell diameter and keying. If you are capping a size 17 CPC receptacle on a panel or harness end, this is the matching cover. The polyethylene material is flexible enough to snap on and off without cracking in normal handling, but rigid enough to stay put in a static assembly.