Will the Coil SumoSprings CSS-1125R Work w/a 2010 Subaru Forester?
Updated 08/31/2026 | Published 08/23/2026
Products Featured in This Question
Question:
Hi, is the CSS-1125R compatible with a Subaru Forester 2010?
asked by: Karl H
Expert Reply:
They sure are Karl! The Coil SumoSprings Custom Helper Springs item # CSS-1125R are designed to fit in the rear coil springs of the 2010 Subaru Forester.
The Coil SumoSprings item # CSS-1125R are designed to insert between the gaps of your Subaru's rear coils. They're going to limit the amount of travel your rear suspension has to address any sagging issues you encounter when towing or hauling something heavy in the rear.
What kind of trailer are you pulling or do you have something heavy like a cargo carrier on the back of your Forester? Feel free to answer this and throw in any other questions you have, where it says Add Comment.
(click to enlarge)
(click to enlarge)
Jack E.
8/30/2026
Hi Karl, I installed Coil Sumasprings on the rear struts on my 2023 Crosstrek. With my 1,100.lb treardrop trailer hooked up, the hitch level came up about an inch. It rode much better than stock but not as good as installing stiffer springs and shocks.
Jerred H.
8/30/2026
Brian
8/31/2026
We put a set on our 2021 Toyota Rav 4. We tow a 1,200 lb. pop up camper. Made a world of difference. Reduced any sagging almost entirely. A local tire shop put them on in under 20 mins. Even with out the towing, if you load up your back end with garden soil or other heavy goods, you really notice the difference. Well worth it. Far better alternative than messing with air shocks or upgrading entire shock units.
Jerred H.
8/31/2026
Product Page this Question was Asked From
Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle
- Vehicle Suspension
- Towing/Load Leveling
- Coil Spring Helpers
- Suspension Only
- Standard Duty
- Rear Axle Suspension Enhancement
- SuperSprings Intl
more information >
Featured Help Information
Instructions
Continue Researching
- Search Results: rust resistant leaf spring
- Search Results: optronics led trailer clearance or side marker light ~ submersible ~ 3
- Shop: etrailer Rust-Resistant 4-Leaf Double Eye Spring for 3.5K Trailer Axles - 25-1/4" - Dacromet
- Shop: etrailer Rust-Resistant 3-Leaf Double Eye Spring for 2K Trailer Axles - 20-3/8" Long - Dacromet
- Shop: Optronics LED Clearance Light - 2" Round - Smoke Lens - Red - Grommet Mount - PL-10
- Q&A: 2 and 4 Inch Diameter Trailer Lights, Grommets, and Harnesses
- Video: Hands-On with the Optronics LED Trailer Clearance or Side Marker Light
- Shop: Optronics LED Trailer Clearance or Side Marker Light - Submersible - 3 Diodes - Round - Red Lens
- Shop: 2" Round Grommet - Flush Mount - Open Back
- Shop: Right Angle 2-Wire Pigtail for Optronics Trailer Lights - 2-Prong PL-10 Plug - 6" Lead
- Search Results: trailer hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
- Search Results: trailer tires and wheels
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring
- Video: How to Choose a Trailer Brake Controller
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Search Results: trailer wiring
- Shop: Suspension Enhancement
- Shop: Brake Controller
- Video: Measuring To Choose The Right Trailer Axle
- Article: How to Measure Your Trailer Wheel Bolt Pattern
- Search Results: trailer jack
- Q&A: Comparing Kenda KR03, KR35, And KR53 Tires
- Q&A: Does etrailer Carry Furrion Chill Cube w/ Heat Pump to Replace Dometic Duo-Therm
on Vehicle Suspension
Bill F.
8/30/2026
I purchased a set for the rear suspension of my 2024 Hyundai Venue Limited. It made a world of difference in the ride as well as the stabilization when hauling a trailer. Well worth the money! I’m just upset. They don’t make them for my 2026 Hyundai Santa Cruz!