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Do All Yellow Butt Connectors Have Built In Heat Shrink Feature?  


I have yellow butt connectors for my trailer wiring. Do all trailer wiring butt connectors need to be heat shrinked? These sat just to crimp them. Thank you.


Expert Reply:

Most butt connectors are not designed with heat shrink built in, only specific ones like the # DW05745-5.

If you have just standard butt connectors like # 224775 you'll need to pick up heat shrink # DW05449 separately. Any connectors exposed to the elements should have heat shrink protecting them.

expert reply by:
Samuel C

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