close
close

Shopping Cart:

🔥 Summer Sale
Pay over time with Affirm Learn More
Customer Reviews
0
Toggle menu
0

Polaris RZR Shocks and Springs

Hit a whoop section just wrong at speed on the dunes and a stock RZR shock tells on itself pretty darn quick. The twin-tube body fades, oil temps spike, and the ride goes soft and wallowy right when you need the most control. That's the tradeoff Polaris built into the factory suspension across the RZR line: it's tuned for a broad range of riders, not actually designed for your specific riding style. Owners running Walker Evans Velocity shocks on an older XP 1000 or Turbo, or factory Fox Dynamix Live Valve shocks on a Pro R or Pro XP, run into the same wall at some point. Suddenly or not-so-suddenly, you find yourself dealing with sagging tender springs, weeping seals, or a ride that just isn't dialed for their weight and terrain.

The fix depends on what's actually wrong. If a shock body has oil creeping past the seal or the front end clunks over washboard, you might be looking at a rebuild situation versus a shock replacement. If the ride is soft, saggy, or bottoms out with gear and passengers loaded, that's a spring problem, and dual-rate spring kits with crossover rings solve it without touching the shock body. If you're really looking to get that racing-quality fine control and/or the control you need for dune running, desert whoops, high-speed trails and the like, that's a shock upgrade. FOX Factory Race Series Internal Bypass shocks bump front bore diameter from the stock 2.0" up to 2.5", with hard-chromed 7/8" shafts and Kashima-coated bodies that resist heat fade on long runs.

This page covers the RZR XP 1000, Pro R, Pro S, Pro XP, Trail, and Trail S lines, both the two-seat and four-seat. Four-seat Pro R and Pro XP 4 models carry more weight over a longer wheelbase, so their tender springs sag faster and typically need a dedicated 4-seat spring kit rather than a 2-seat part shared across the line. Shaft diameter also splits by generation: older Walker Evans-equipped RZRs use 5/8", 3/4", or 7/8" shafts depending on model year, and a seal kit or crossover ring bought for the wrong shaft simply won't fit. We're the fitment experts on this, so text us at (920) 644-5280 or call (920) 543-5376 (Mon-Fri 8am-6pm CST, Sat 9am-3pm CST) before you order, and we'll confirm your exact shock and shaft before you spend a dollar. The ownership and management team here has 100+ combined years in the UTV industry, which is plenty long enough to know which shock parts come back for the wrong fitment and which ones don't.

 

Read More
Filter
FILTERS

Bolt pattern isn't the main fitment question here; shaft diameter and shock body type are. Confirm which shocks came stock on your specific RZR (Walker Evans Velocity/Needle vs. Fox Dynamix/Live Valve) before ordering a seal kit, spring kit, or crossover ring, since none of these parts cross over between shock brands.

Type

Key Spec

Best For

What You Give Up

Seal/rebuild kits (ZBroz, Cognito)

Fits OE Walker Evans 5/8"–7/8" shafts and Fox 2.5"/3.0" IBP bodies; includes seals, O-rings, fresh oil

Reviving a factory shock that's weeping oil or clunking

No performance gain — restores stock tune, doesn't upgrade it

Dual-rate spring kits (ZBroz)

Tender + main springs, spring dividers, crossover rings; bolts onto existing shock body

Budget ride-quality fix for sagging factory tender springs

Still limited by the stock shock's valving and bore size

Direct-fit coilover shocks — Performance 2.0 IFP (FOX)

Monotube, internal floating piston, kit of 4, bolt-on for 900/1000 50"–55" width machines

Trail riders wanting more heat resistance than stock twin-tube

No compression/rebound adjustability

Internal Bypass race shocks — 2.5"/3.0" IBP RC2 (FOX)

7/8" hard-chromed shafts, Kashima-coated bodies, adjustable QS3/RC2 compression

Desert running, dune riding, high-speed whoops

Highest cost tier; periodic revalve service recommended

Premium dual-rate spring/valving kits — Stage 1 (ZBroz)

Fox Dynamix-specific tuning, dual-rate springs and crossover rings

Pro R/Pro XP owners wanting race-tuned ride without swapping shock bodies

Pricier than a basic spring swap; still uses the stock shock body

What separates a good shock from a cheap one comes down to a few specific things you can check before you buy. Shaft coating matters more than a little bit. Hard-chromed shafts resist pitting and corrosion that eventually chew up seals, while cheap plating wears through fast. Bore diameter matters too: stock RZR shocks run a 2.0" bore, and stepping up to a 2.5" or 3.0" bore (like FOX's Factory Race Series) gives more oil volume to dissipate heat, which is exactly what prevents the fade that ruins a stock shock on a long and intense run. Body material matters as well. Hard-anodized aluminum bodies resist corrosion better than raw aluminum, and Kashima coating on premium FOX shocks cuts stiction so the shock responds to small bumps instead of only the big hits.

For most owners, the smart entry point is a $29.95–$44.95 ZBroz seal kit (matched to your exact Walker Evans shaft diameter) if a factory shock is just weeping oil. This restores the shock's original tune rather than upgrading it. The sweet spot for most RZR owners chasing a real ride-quality gain is a dual-rate spring kit in the $399–$949 range: a ZBroz Tender Spring Kit for Pro XP 4 runs $399 and adds 1"–2" of lift while fixing sagging factory tenders, while a ZBroz Stage 1 Dual Rate Spring Kit for Pro R (tuned specifically for the factory Fox Dynamix shocks) runs $947–$949 and delivers race-inspired control without swapping the shock body. 

For owners chasing race-level control, the ability to run dunes confidently and take on desert whoops, FOX's Factory Race Series 3.0 Internal Bypass RC2 shocks sit at the premium end of the category at $3,279.95. The most common warranty in this category is 3–6 months from the manufacturer, but Everything Polaris RZR does offer extended 1- and 2-year warranties on all products if that's something you're interested in. You can add the extended warranty right at checkout. Spring and shock kits at the Stage 1 price point qualify for Affirm financing at checkout if you'd rather spread the cost.

Top 3 Polaris RZR Shock Brands

  • FOX Racing Shox — Factory Race Series shocks use hard-anodized aluminum bodies, 7/8" hard-chromed shafts, and Kashima coating on premium models, with bore sizes stepping up from the stock 2.0" to 2.5" or 3.0" for reduced heat fade.
  • ZBroz Racing — Builds dual-rate spring kits, tender spring kits, crossover rings, and shaft-specific seal kits engineered for both factory Walker Evans and Fox Dynamix shock platforms across the RZR lineup.
  • Shock Therapy — Custom valving and spring tuning built around FOX Podium shock platforms, designed from the ground up for specific RZR models rather than one-size-fits-all settings.

Best-Selling Polaris RZR Shocks and Springs

Frequently Asked Questions

Q: My RZR's stock shocks feel sloppy after towing or loading gear. Is that a spring problem or a shock problem?
 Usually springs, not shocks. A shock body controls damping (how fast the suspension moves), while the spring controls ride height and how much weight the suspension can carry before it sags or bottoms out. If your RZR sits lower in the rear or bottoms out with a full load, a dual-rate spring kit (which adds a stiffer tender spring for the added weight) fixes it without touching the shock itself.

Q: Do I need different shocks for a 4-seat RZR 4 versus a 2-seat RZR?
Often, yes. The added weight and longer wheelbase on RZR 4 and Pro XP 4 models typically call for a 4-seat-specific spring kit rather than sharing a 2-seat part, since the rear springs need to handle more static load before they even start absorbing bumps. Always confirm the exact kit listing matches your seat count before ordering.

Q: How do I know if I have Walker Evans or Fox Dynamix shocks on my RZR?
It depends on model and year. Older XP 1000 and XP Turbo models commonly ran Walker Evans Velocity or Needle shocks stock, while newer Pro R and Pro XP models run Fox Dynamix or Fox Live Valve shocks. Text us a photo of your shock body at (920) 644-5280 and we'll confirm which platform you have before you order a seal kit or spring kit — the parts don't cross over between brands.

Q: Are aftermarket shocks and springs as good as what came on my RZR from the factory?
Factory shocks are tuned as a compromise across a wide range of riders and terrain. Aftermarket options give you that same build quality, often from the same manufacturers, like FOX, but tuned for your specific weight, load, and riding style, in spring rates and valving the factory setup doesn't offer. A Stage 1 dual-rate spring kit or a full Internal Bypass shock upgrade lets you dial in for dunes, trail, or rock crawling specifically instead of accepting the factory middle ground.

Q: What's the most common reason a shock seal kit doesn't fix a leak?
The shaft diameter doesn't match. Walker Evans shocks across the RZR lineup use 5/8", 3/4", or 7/8" shafts depending on model year, and a seal kit sized for the wrong shaft won't seal properly even though it looks similar. Confirm your exact shaft diameter (or text us a photo) before ordering.

Written and reviewed by the Everything Polaris RZR fitment and marketing team — riders and product specialists who work with these machines daily. Spot an error, or have a suggestion that would make this guide more helpful? Email us at marketing@gearup2go.com — we read every note.

Last updated: July 2026