Recommended Suspension Enhancement for a 2019 Toyota Highlander that Sags When Pulling a Trailer
Updated 09/02/2025 | Published 06/30/2025
Question:
I have a 2019 Toyota Highlander that seems to sag quite a bit when the camper trailer is loaded. We have a weight distribution hitch already and still the SAG is pretty severe. Do you have any recommendations for suspension leveling or enhancements for the rear vehicle?
asked by: Kyle A
Expert Reply:
Hey Kyle. The only suspension enhancement I have that will help with your Highlander's sagging issue is the Coil SumoSprings Custom Helper Springs for Coil Spring Suspension item # CSS-1145R. These insert in your rear coil springs and limit their range of motion.
What kind of weight distribution hitch do you have and how heavy is your trailer? I'm wondering if you have an underrated weight distribution hitch or it's not set up correctly.
Product Page this Question was Asked From
Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle
- Vehicle Suspension
- Towing/Load Leveling
- Bump Stops
- Suspension Only
- Standard Duty
- Rear Axle Suspension Enhancement
- SuperSprings Intl
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle
- Q&A: SumoSprings Or Weight Distribution System For Towing A Casita Trailer With A 2023 Toyota 4Runner?
- Q&A: How to Prevent Rear Suspension Sag on 2021 Toyota Highlander Towing Trailer
- Video: Towing or Hauling with your Minivan
- Video: Coil SumoSprings Rear Helper Springs Set Up - 2023 Toyota Highlander
- Search Results: lift kit
- Shop: SumoSprings Trailer Helper Springs w/ Line Relocation Bracket - Single Axle - 5K to 8K - Overslung
- Video: Air Lift LoadLifter 5000 Ultimate Rear Air Helper Springs with Internal Jounce Bumpers Review
- Shop: Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Front Axle
- Q&A: Furrion Chill AC For A 2005 Casita 17 Spirit Deluxe
- Q&A: What is Best RV Backup Camera System
- Shop: Timbren Rear Suspension Enhancement System
- Video: A Closer Look at the Coil SumoSprings Custom Helper Springs for Coil Spring Suspension
- Shop: Replacement SpeedKnob and Wedge Assembly for Yakima Bike Racks
- Shop: Replacement Pull Pin for Yakima HoldUp +2 2-Bike Add-On
- Shop: Replacement 2" Shank Adapter for Yakima RidgeBack or FullTilt Bike Racks
- Video: Firestone Ride-Rite Air Bags with Easy Mount Compressor Feature Breakdown
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Search Results: trailer hitch
- Article: Trailer Wiring Diagrams
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Search Results: trailer wiring
- Search Results: trailer tires and wheels
- Q&A: Installation Time for Blue Ox BX1128 Flat Tow Base Plate Kit for 2016 Jeep Grand Cherokee
- Article: How to Measure for Trailer Hitch Drop
- Shop: Brake Controller
- Video: One Year Later | Firestone Airide Helper Springs and Heavy Duty Air Compressor
- Search Results: suspension enhancement
on Vehicle Suspension
Jerred H.
9/2/2025
Hey Kyle, did the Coil SumoSprings help with the sagging issue on your Highlander? I'm asking because your experience could help others dealing with similar suspension challenges.