How To Determine Blue Ox Spring Bar Weight Capacity

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Question:

How can you tell what size spring Blue Ox bars you have?

asked by: Barry P

0

Expert Reply:

Blue Ox has an easy system for determining the weight capacity of your spring bars, whereas other companies may use measurements or printed capacity to assist. With Blue Ox, there is a 5 dimple system: No dimples means it is rated for up to 350 lbs total tongue weight. One dimple means it is rated for up to 550 lbs. Two dimples indicates up to 750 lbs. Three dimples indicates up to 1,000 lbs. Four dimples indicates up to 1,500 lbs tongue weight. Five dimples indicates up to 2,000 lbs total tongue weight.

I've attached videos of a couple of these sizes so you can see these dimples/notches.

350 to 550 lbs # BXW4005
550-750 lbs # BXW4006
750 to 1,000 lbs # BXW4007
1,000 to 1,500 lbs # BXW4008
1,500 to 2,000 lbs # BXW4014

expert reply by: Jason S

0

click to enlarge

Jamie H.

8/17/2025

Ok Jason, thank you. In your example above, the bar has 3 dimples indicating 1000 lbs... Is that 1000 lbs/bar (2000 lbs) for the system? or is it 1000 lbs total (ie. 500 lbs per bar)? Thank you

Reply

Robin H.

8/18/2025

@JamieH in this case the three would be for the # BXW4007. The pair of bars is rated for 750-1,000 lbs of tongue weight. These would be found on the Blue Ox SwayPro # BXW1000.

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Answer 2

There's a surprisingly easy way you can determine exactly what spring bars you have and therefore exactly what their tongue weight rating is. The bars are going to have dimples on them (see accompanying photo) which is going to tell you the bars…

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Answer 3

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Answer 4

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Answer 9

Yes, you should swap the weight distribution bars to the 1,000-lb Spring Bars for Blue Ox TrackPro #BLU52FR. These have a tongue weight capacity of 800-1000lbs. It is important to use the correct bars with the TrackPro since the sway control and…

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Answer 12

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How To Determine Blue Ox Spring Bar Weight Capacity

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