Dimensions of the Replacement Trunnion Spring Bar for Reese Weight Distribution System RP66009

Question

Question:

Can you provide me the dimentions of part number RP66009

asked by: Anthony

0

Expert Reply:

I will try to provide the dimensions you need. If another dimension is needed let me know and I will be glad to get it for you.

Overall length = 33 inches
Length to the spring bar detent = 29 inches
Width and height of spring bar = 1-3/8 inches
Width of Trunnion at Spring Bar = 3 inches
Height of Trunnion at Spring Bar = 2-3/4 inches
Trunnion ends = 1 inch diameter
Overall Trunnion Height = 4-1/2 inches

expert reply by: Robert G

0

click to enlarge

Russ M.

7/31/2026

Is the overall trunnion height from bottom of trunnion to the top of the ball?

Heather A.

7/31/2026

@RussM No, that 4-1/2 inch measurement does not include the hitch ball. It is the overall height of the trunnion portion of the spring bar itself, measured from the bottom of the trunnion to the top of the trunnion where it fits into the weight distribution head. The hitch ball is a separate component, so it isn't included in any of those dimensions. If there's another measurement you're trying to compare, let me know and I'd be happy to help.

Answer 1

Hey Russ, For your Legend Deluxe v-nose trailer, you can use Curt TruTrack 2P Weight Distribution System w/ Sway Control #C95MJ. I like this one for you because your tongue weight rating falls in between the minimum and maximums of 500-800 lbs. and…

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Answer 2

I spoke with my contact at Reese and I have some information. Depending on the age of your system and what type of head came with it, you may be able to use the replacement spring bars, #RP66009. If your head is numbered 58167 or it looks like…

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Answer 3

Thanks for the picture and info of your spring bar. Based on that I can confirm that the correct replacement is the part #RP66009 that you referenced.

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Answer 4

The Replacement Head for Reese Weight Distribution System - Trunnion Bar #RP58167 is confirmed to go with your sway bars. There are two possible sway bar styles and that will impact the brackets needed. If you have the tapered bars that are straight…

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Answer 5

If your current weight distribution system is less than 3 years old, then you will be able to use the Replacement Trunnion Spring Bar, #RP66009. If it is the old style system, the bars will not fit in the head. The head you would need is #RP58167.…

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Answer 6

The same head is used on systems rated up to 1,200 pounds tongue weight and 12,000 pounds gross trailer weight. Since you changed campers and now have the 1,100 lbs tongue weight, I recommend you simply get the higher trunnion bar like part #RP66009.…

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Answer 7

The trunnion-style spring bars used in Reese Dual Cam weight distribution systems, both the standard dual cam and high-performance dual cam systems, are the same length. Trunnion spring bars are selected not based on length but by weight capacity.…

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Answer 8

Thanks for the pictures! The Replacement Trunnion Spring Bar for Reese Weight Distribution System item #RP66009 is exactly what you need and I went ahead and attached a diagram below so you can compare the dimensions.

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Answer 9

You would need to go with lower rated spring bars on your Reese Strait Line WD system since you are going to a much lighter trailer. If you have too high rated bars you will have a very rough ride quality. Since your total trailer weight is 6,000 lbs…

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Answer 10

Both the Strait-Line Weight Distribution System #RP66083 for 800 lbs Tongue Weight (TW) and the System #RP66084 for 1,200 lbs of TW use the same head unit and lift brackets. This means that you can replace your 800 lb bars, part #RP22225, with the…

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Answer 11

Yes since the ends of your spring bars are curved you can use the part #RP66009 as a replacement which will upgrade the tongue weight rating of your setup to 600-1,200 lbs like you are wanting.

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Answer 12

Yes, trunnion spring bar #RP66009 is compatible with all versions of the Reese dual-cam sway control. There have been slight changes in the dual-cam systems over the years but the trunnion bars with the hook end are compatible with all of them.

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Dimensions of the Replacement Trunnion Spring Bar for Reese Weight Distribution System RP66009

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