Description

Established in 1975, Superlift remains a pioneer in the industry, and is one of the few suspension companies operated by true truck and off-road enthusiasts. We are passionate about trucks, wheeling and an outdoor lifestyle that go hand-in-hand. We can talk the talk because we walk the walk.This question.... ''What's best for the customer?''... is always at the top of our list in everything we do, from product planning and design to customer service. This simple guiding principal has served us well for decades, and will continue to guide us into the future.We are proud to provide the truck, Jeep and SUV owner products that perform better than advertised. We understand that most people spend the majority of their windshield time on-road, and our designs reflect this. You will be 100% satisfied with our products on-road or off - we guarantee it! Determining what product is right for your vehicle and lifestyle can be a complicated task, especially with so many companies and options to choose from. We urge you to carefully research your purchase. Most lift kits represent a considerable investment, and you will literally live with your choice for years. Talk to fellow off-roaders, and your local automotive specialty shop before making a purchase. We love to talk shop, and we encourage you to give our tech staff a call. Bottom line... if you do your homework, you'll discover that we've done ours.

Product Overview

Established in 1975, Superlift remains a pioneer in the industry, and is one of the few suspension companies operated by true truck and off-road enthusiasts. We are passionate about trucks, wheeling and an outdoor lifestyle that go hand-in-hand. We can talk the talk because we walk the walk.This question.... ''What's best for the customer?''... is always at the top of our list in everything we do, from product planning and design to customer service. This simple guiding principal has served us well for decades, and will continue to guide us into the future.We are proud to provide the truck, Jeep and SUV owner products that perform better than advertised. We understand that most people spend the majority of their windshield time on-road, and our designs reflect this. You will be 100% satisfied with our products on-road or off - we guarantee it! Determining what product is right for your vehicle and lifestyle can be a complicated task, especially with so many companies and options to choose from. We urge you to carefully research your purchase. Most lift kits represent a considerable investment, and you will literally live with your choice for years. Talk to fellow off-roaders, and your local automotive specialty shop before making a purchase. We love to talk shop, and we encourage you to give our tech staff a call. Bottom line... if you do your homework, you'll discover that we've done ours.

Features and Benefits

• Spring Rate Tuned For Smooth Ride

Product Details

Actual Color:	Black
Avg Install time:	1-3 Hours
Color:	Black
Description:	Coil Springs-Pair-Rear-4in. Lift-18-25 Wrangler JL 4-Door
Feature:	Spring rate tuned for smooth ride
Part Number:	slf594
Prop 65 - Short Label:	WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov.
Prop 65 Y/N:	Yes
Title:	SUPERLIFT COIL SPRINGS RR JEEP JL 4DR 18-23 4in
WARNING CA Proposition 65 Message:	WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
WARNING CA Proposition 65:	Yes

Kit Options

This item is available as a full kit.
Select a kit option in the following table if you are looking for this item in a bundle form with all associated components.

Kit option/s:

Thumb	SKU	Kit Title
	slfK176	Superlift 18-19 Jeep Wrangler JL Unlimited 4in Lift Kit Including Rubicon w/ Shock Extensions (1x slf586, 1x slf594, 1x slf5825, 1x slf5833)
	slfK176F	Superlift Suspension Lift Kits for 2018-2020 WRANGLER - K176F Kit, 4.0 in., FOX Shocks, Jeep, Kit
	slfK189	Superlift 18-20 Jeep Wrangler JL Unlimited 4 Dr 4in Lift Kit w/ Superlift Shadow Shocks (1x slf586, 1x slf594, 1x slf5825, 1x slf5833, 1x slf84120)

Data: v4.2 - Upd: 2026-10-14 20:46:11

Features

Specifications

Product Attributes - Brand

Superlift Suspension

Product Attributes - Manufacturer's Part Number

594

Product Attributes - Part Type

Coil Springs

Product Attributes - Product Line

Superlift Lift Coil Springs

Product Attributes - UPC

00804260100995

Product Attributes - Ride Height

Lifted

Product Attributes - Ride Height Note

Additional ride height information may be available for your vehicle, please refer to the app tab.

Product Attributes - Spring Positioning

Rear

Product Attributes - Rear Spring Raised Amount Range (in.)

4.00 in.

Product Attributes - Progressive Rate Spring

No

Product Attributes - Spring Finish

Black

Product Attributes - Bushings Included

No

Product Attributes - Quantity

Sold as a pair.

Compatibility