Automotive Connector Back Cover – 1028-027-0405, Waterproof Housing Rear Seal for Female Socket Cable Plug

Part number 1028-027-0405 is a Delphi / Aptiv automotive connector back cover — the rear seal and secondary lock component for a specific Delphi/Aptiv female socket connector housing. The 1028-XXX-XXXX part number format is associated with Delphi’s connector accessory range, used in GM, Ford, Chrysler, and other OEM vehicle platforms. Back covers are critical for achieving IP67 sealing and secondary terminal retention in waterproof automotive connectors.

Key Specifications

• Part Number: 1028-027-0405
• Manufacturer: Delphi / Aptiv
• Component Type: Connector back cover / rear seal / secondary lock
• Material: PA66 nylon, flame retardant
• Function: IP67 rear seal + secondary terminal retention
• Application: Specific Delphi/Aptiv female socket connector housing (verify compatibility)

Delphi/Aptiv Back Cover Identification

• Cross-reference 1028-027-0405 in the Aptiv catalog or Delphi parts database to identify the compatible connector housing
• The 1028-XXX-XXXX format is associated with Delphi’s Metri-Pack and GT series connector accessories
• For GM, Ford, and Chrysler vehicles, the OEM parts catalog lists the back cover part number for each connector location
• Back covers are not interchangeable between different Delphi/Aptiv connector housings

Frequently Asked Questions

How do I verify 1028-027-0405 is compatible with my connector?

Cross-reference 1028-027-0405 in the Aptiv catalog or Delphi parts database to identify the compatible connector housing part numbers. Verify the housing part number on the original connector before ordering. If the original back cover is lost, identify the connector housing part number and cross-reference to find the correct back cover.

What Delphi connector series uses 1028-027-0405?

The 1028-XXX-XXXX format is associated with Delphi’s Metri-Pack series connector accessories. Metri-Pack connectors are widely used in GM vehicles for engine management, body electronics, and sensor connections. Cross-reference in the Aptiv catalog to identify the specific connector series and compatible housing part numbers.

How do I install a Delphi/Aptiv back cover?

After loading all terminals and verifying seating: align the back cover with the housing rear face, matching the orientation key. Press firmly until the locking tabs click. For Delphi Metri-Pack connectors, the back cover slides onto the housing from the rear and locks with side tabs. Verify full seating by attempting to pull the back cover off — a properly installed back cover will not release without pressing the release tabs.

Typical Applications

• GM vehicles: Replacing missing or damaged back covers on Delphi/Aptiv Metri-Pack connectors
• Ford/Chrysler vehicles: Back cover replacement on Delphi/Aptiv connector systems
• Automotive workshops: Workshop stock for Delphi/Aptiv connector accessories
• Harness manufacturing: Back covers for new Delphi/Aptiv connector assemblies

Package Contents

1 piece — automotive connector back cover 1028-027-0405 (Delphi/Aptiv). Compatible connector housing not included.