Replacement Inner Tube For 30k Bulldog Gooseneck Coupler

Question

Question:

I have the 30k lb coupler P/N 0289500300 on my trailer. Will this tube work with my trailer?

asked by: Scott K

0

Expert Reply:

Hey, Scott.

The outer tube on your current coupler, part # BD0289500300, is made to work with a 4" inner tube. Since the Bulldog BX1 inner tube, part # BD1289050300, also has a 4" outer diameter, it will be the perfect replacement.

Is this the original coupler on your trailer?

expert reply by: Gwendolyn Y

0

Bulldog BX1
(click to enlarge)

Scott K.

12/24/2025

Yes it is the original coupler.

Gwendolyn Y.

12/29/2025

@ScottK Then it would be the ideal upgrade. The latch handle will be easier to use than the original.

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Replacement Inner Tube For 30k Bulldog Gooseneck Coupler

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