Changing a 14K Equal-i-zer Weight Distribution System to a 12K System
Question:
I just purchased an Equal-i-zer 4 point sway control 90-00-1400. The spring arms are too stiff for my trailer. I would like to step down to the 12,000 lb. spring arm. Are the 12,000 lb. and the 14,000 lb spring arms interchangeable in the 90-00-1400 head?
asked by: W C
Expert Reply:
I spoke with my contact at Equal-i-zer who said that the arms of the 14K Weight Distribution (WD) system # EQ37140ET and the 12K WD system # EQ37120ET are compatible with each other. In fact, he said they are the exact same bars.
The difference between the systems actually stems from the head unit. To step down to the 12K system you will need to use the head unit # EQ90-02-1200 instead of the 14K head unit # EQ90-02-1400 that you are using.
You want to make sure your WD system has a Tongue Weight (TW) range that the Total Tongue Weight (TTW) of your towing setup falls in the middle of. To find the TTW of your towing setup you will need to add the TW of your fully loaded and ready-to-go trailer along with the weight of any cargo behind the rear axle of your tow vehicle. Keep in mind that a properly loaded trailer will have a TW that is 10-15% of the loaded weight of your trailer.
The 12K system has a TW range of 800 lbs - 1,200 lbs. If your TTW doesn't fall inside this range just let me know and I can help you find the correct WD system for your towing application.

Products Referenced in This Question
Equal-i-zer Weight Distribution System w/ 4-Point Sway Control - 12,000 lbs GTW, 1,200 lbs TW
- Weight Distribution Hitch
- WD With Sway Control
- Some Sway
- Includes Shank
- Electric Brake Compatible
- Surge Brake Compatible
- Fits 2 Inch Hitch
- Allows Backing Up
- 1000 lbs
- 1100 lbs
- Equal-i-zer
more information >
Replacement Head for Equal-i-zer Weight Distribution Systems - 1,200 lbs TW
- Accessories and Parts
- Weight Distribution Hitch
- Head
- Square Bar
- Equal-i-zer
- Equal-i-zer
more information >
Replacement Head for Equal-i-zer Weight Distribution Systems - 1,400 lbs TW
- Accessories and Parts
- Weight Distribution Hitch
- Head
- Square Bar
- Equal-i-zer
- Equal-i-zer
more information >
Product Page this Question was Asked From
Equal-i-zer Weight Distribution System w/ 4-Point Sway Control - 14,000 lbs GTW, 1,400 lbs TW
- Weight Distribution Hitch
- WD With Sway Control
- Some Sway
- Includes Shank
- Electric Brake Compatible
- Surge Brake Compatible
- Fits 2 Inch Hitch
- Allows Backing Up
- 1200 lbs
- 1300 lbs
- Equal-i-zer
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Q&A: Will Equal-i-zer Weight Distribution Brackets Sit Low Enough for Generator Box Door Clearance
- Article: 5 Things to Know About Weight Distribution Hitches
- Q&A: Recommended Weight Distribution Hitch for a Toy Hauler
- Article: 2 Steps for Finding the Right Weight Distribution Hitch Size
- Q&A: Will the RoadActive Suspension Kit Fit a Lifted 2005 Ford Excursion 4x4
- Q&A: Recommended Weight Distribution Hitch for 2024 Subaru Ascent Towing 5,000 lb Trailer
- Q&A: Comparing Equal-i-zer and Curt TruTrack Weight Distribution Systems
- Q&A: Weight Distribution Shank for 2-1/2 inch Hitch with A Lot of Drop
- Q&A: How to Determine Best Weight Distribution Weight Rating for 10,500 lb Trailer
- Article: Is It Illegal to Leave My Hitch on My Truck?
- Article: Determining Trailer Tongue Weight
- Article: How to Measure for Trailer Hitch Drop
- Article: The 5 Best Trailer Drop Hitches You Can Buy
- Article: Best Hitches for Travel Trailers (2022) - For a Smooth, Sway-Free Ride