Vendor:304 OFFROAD
Dual-rate spring upgrade for your four-seat Polaris RZR XP S.
Refresh the spring package on your four-seat Polaris RZR XP S with universal shock fitment within this listed application with this All Thingz UTV dual-rate kit. The full kit replaces upper and lower springs; the lowers-only option is for customers replacing just the lower springs. Match the XP S designation carefully: RZR S 1000, XP 1000, and Pro S are separate applications.
What this kit offers
- Ride comfort: Springs intended to reduce harsh trail impacts with the correct setup for your vehicle.
- Keep your shock assemblies: This is a spring upgrade; replacement shocks are not included.
- Choose the package you need: Review the contents below before selecting a full or partial kit.
Vehicle fitment
| Fitment detail | Application |
|---|---|
| Model | Polaris RZR XP S |
| Seat count | Four-seat |
| Shock package | Universal shock fitment for this application |
Before ordering: Match the complete model name, seat count, and installed shocks. Double-check your selected spring color and package. Universal shock fitment applies to the vehicle application listed here, not to all Polaris models. Provide your model year, usual passenger/cargo load, and suspension modifications with your order.
What's included
| Option | Contents |
|---|---|
| Full kit | Four front springs and four rear springs |
| Lowers only | Four lower springs |
Select an available raw or powder-coated finish. Powder coating is completed in-house at All Thingz UTV; some colors carry an additional charge.
Installation overview and setup
Follow the Polaris service procedure for your exact model year and the instructions for your installed shocks. Professional installation is recommended. The video below is a general spring-installation overview.
- Record the starting ride height on level ground and note the vehicle's normal operating load.
- Safely raise and support the vehicle. Unload the suspension before preload adjustments and release spring tension with suitable equipment before removing retainers.
- Install the springs supplied in your selected package using the applicable front and rear shock procedures. Torque removed fasteners to your exact model's specifications.
- Lower the vehicle and move it forward and backward to settle the suspension before remeasuring.
- Follow the shock manufacturer's adjustment limits. Make small changes with the suspension unloaded, then settle and remeasure. Keep left and right settings matched on each axle.
For settings specific to your kit and vehicle configuration, contact All Thingz UTV.
All Thingz UTV ride-height baseline
The table retains the standard ATU baseline reference published with this kit. It is not a Polaris factory specification or a separately validated target for every XP S or Pro S configuration. Confirm the appropriate target for your exact setup before adjusting.
| Tire size (inches) | ATU baseline height (inches) |
|---|---|
| 28 | 13.5 ± 0.5 |
| 29 | 14.0 |
| 30 | 14.5 |
| 31 | 15.0 |
| 32 | 15.5 |
| 33 | 16.0 |
| 34 | 16.5 |
| 35 | 17.0 |
| 36 | 17.5 |
Measurement reference: Ground to the underside of the skid plate, on level ground with the suspension settled after moving forward and backward. Use consistent reference points when comparing measurements. Tire dimensions, pressure, passengers, accessories, and suspension setup affect the result. Listed tire sizes do not confirm tire fitment.
Spring installation video
General installation overview: This video demonstrates spring installation concepts. Hardware, procedures, and adjustments can differ by model year, shock package. Use the instructions for your exact setup.
Related spring-kit options
These are alternative applications or spring packages. Match the model, seat count, and shock package on each listing before ordering.
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