Skip to product information
SKU:
NLT2J00543
Ships for free in 2–4 business days.
SuperSprings SSF-604-40 Front SumoSprings for Toyota Tacoma Tundra 4Runner | Pair
$90.99
In Stock
$90.99
Sale price
$90.99
Regular price
This SuperSprings International SSF-604-40 front SumoSprings kit is rated at 1,400 pounds at 50-percent compression for listed Toyota Tacoma, Tundra, and 4Runner applications.
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Toyota 4Runner 4WD, 1984-2024, per manufacturer application listing
- Toyota Tacoma 4WD applications listed by SuperSprings International
- Toyota Tacoma 2WD, 2016-2021, per manufacturer application listing
- Toyota Tundra 2WD, 2000-2026, per manufacturer application listing
Product Overview
Front SumoSprings are often chosen when added equipment, towing setup, rough roads, or repeated work use makes the front suspension feel harsh, unstable, or prone to bottoming. The progressive microcellular urethane springs supplement the factory suspension and engage as load and compression increase.
They do not increase the vehicle manufacturer's GVWR or payload rating. Drivetrain, suspension, model year, ride height, and existing modifications must match the official application before installation.
Key Features & Performance
- Progressive front suspension support
- 1,400-lb capacity at 50-percent compression
- Maintenance-free microcellular urethane construction
- Designed to reduce harsh bottoming and improve loaded control
Replaces Part Numbers
- SSF-604-40
Common Uses
- Supporting the front suspension under compatible added equipment
- Reducing jounce impact on rough roads or work sites
- Improving progressive support during towing or hauling within factory limits
- Replacing worn or inadequate factory jounce bumpers in an approved application
Technical Specifications
- Product Type: Front SumoSprings kit
- Part Number: SSF-604-40
- Capacity at 50% Compression: 1,400 lb
- Material: Microcellular urethane
- Brand: SuperSprings International
Installation & Fitment
- Verify the exact vehicle in the current manufacturer application guide
- Inspect suspension condition and note lifts or aftermarket components
- Support the vehicle safely and follow the supplied torque instructions
- Recheck clearance through full steering and suspension travel
Compatibility Notice
SumoSprings do not raise GVWR, GAWR, payload, or towing limits. Modified suspensions and some two-wheel-drive or four-wheel-drive configurations may require different kits.
Frequently Asked Questions
Q: Will these increase payload capacity? A: No. Never exceed the vehicle manufacturer's ratings.
Q: Are these conventional air bags? A: No. They are progressive microcellular urethane springs with no air lines to maintain.
Q: Do lifts affect fitment? A: They can affect engagement and clearance; consult the manufacturer for modified vehicles.
Part Summary
keywords: SSF-604-40 SumoSprings, Toyota Tacoma front helper springs, Toyota Tundra suspension support, 4Runner jounce spring upgrade, 1400 lb SumoSprings kit, front suspension bottoming support, SuperSprings Toyota fitment, progressive urethane helper spring
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.