Blue Ox SwayPro 550 vs Equal-i-zer 6K

Last updated: November 9, 2026

The Equal-i-zer 6K is the better weight distribution hitch overall, rated 3.8 to 3.5. The Equal-i-zer 6K leads on price. The Equal-i-zer 6K costs $272.31 less ($626.69 vs $899).

Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

Blue Ox SwayPro 550 vs Equal-i-zer 6K

Which should you buy?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every up to 10,000 lb weight distribution hitch; a clear win is highlighted. How we rank explains each one.

Factor weightEqual-i-zer 6KBlue Ox SwayPro 550
Overall rating3.8/53.5/5
Sway control 30%100 integrated sway control (4-point friction)100 integrated sway control (self centering caster head)
Price 30%34 $626.698 $899
Tongue weight 15%0 up to 600 lb tongue weight0 up to 550 lb tongue weight
Warranty 25%100 lifetime warranty100 lifetime warranty

Specifications

Equal-i-zer 6KBlue Ox SwayPro 550
Ratings
Trailer up to6,000 lb5,500 lb
Tongue weightup to 600 lbup to 550 lb
Build
Sway controlIntegratedIntegrated
How sway control works4-point frictionself centering caster head
Spring barsTrunnionTrunnion
Shank includedNoYes
Ball includedNo-
WarrantyLifetimeLifetime

All weight distribution hitch comparisons →