Automotive Connector Wire Seal – 936825-1, Rubber Plug Seal for Waterproof Auto Connector

TE Connectivity part number 936825-1 is an automotive connector wire seal (individual wire/plug seal) — the rubber grommet that seals around each individual conductor where it enters the connector housing. Wire seals are the primary IP67 sealing element in waterproof automotive connectors. Each conductor passes through its own wire seal, which compresses around the wire jacket to prevent water ingress through the rear of the housing. Wire seals are consumable items that must be replaced whenever a terminal is replaced.

Key Specifications

• Part Number: 936825-1
• Manufacturer: TE Connectivity
• Component Type: Individual wire seal / plug seal
• Material: Silicone rubber (heat and chemical resistant)
• Function: IP67 sealing around individual conductors at housing rear entry
• Wire Range: Specific wire OD range (verify against datasheet)

Wire Seal Selection — Critical Requirements

• Wire OD matching: Wire seals are sized for a specific wire OD range. Using a wire seal with the wrong OD range will not achieve IP67 — an oversized seal will not compress correctly; an undersized seal will not seal around the wire jacket.
• Replacement requirement: Wire seals must be replaced whenever a terminal is replaced. The seal is installed on the wire before crimping the terminal — it cannot be added after the terminal is crimped.
• Connector compatibility: Wire seals are specific to individual connector housings. Cross-reference 936825-1 in the TE Connectivity catalog to verify compatible connector housings.

Frequently Asked Questions

How do I install a wire seal correctly?

1. Slide the wire seal onto the wire before stripping and crimping. 2. Position the seal at the correct distance from the wire end. 3. Strip the wire and crimp the terminal. 4. Insert the terminal into the housing — the wire seal enters the housing cavity with the terminal and seats in the cavity’s seal groove. 5. Install the back cover to compress the wire seal. The seal must be on the wire before crimping — it cannot be installed after the terminal is crimped.

What happens if I reuse an old wire seal?

Wire seals degrade over time from heat cycling, chemical exposure, and compression set. A reused wire seal may not compress correctly around the wire jacket, allowing water ingress. Always use new wire seals when replacing terminals. Wire seals are low-cost consumables — the cost of a new seal is negligible compared to the cost of connector failure from water ingress.

How do I select the correct wire seal size?

Wire seals are sized for a specific wire OD range. Measure the wire jacket OD with a caliper and select the seal sized for that OD range. Cross-reference 936825-1 in the TE Connectivity catalog to verify the wire OD range and compatible connector housings.

Typical Applications

• Terminal replacement: New wire seals required whenever terminals are replaced in waterproof connectors
• Harness manufacturing: Wire seals for new waterproof connector assemblies
• Commercial vehicles: Wire seal replacement during connector repair
• Automotive workshops: Workshop stock for TE Connectivity connector wire seals

Package Contents

Automotive connector wire seals, 936825-1 (quantity as selected). Compatible connector housing and terminals not included.