Axiom Supply High Clearance Upper Control Arms | DOM Steel | TIG-Welded | Pre-Installed Bushings & Ball Joints | 2009-2014 Polaris RZR S 800 / RZR 4 800 | Powdercoat | SKU AXRZ800UCA
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Before ordering, verify your vehicle details, current setup, and SKU with OFAS fitment support so your upgrade matches your build.
Shipping & Delivery
Free shipping is available within the lower 48 U.S. states. Large or heavy items may ship by freight, and delivery timing can vary by warehouse, carrier, and product availability.
Fitment, Shipping & Product Support
The Axiom High Clearance Upper Control Arms (SKU AXRZ800UCA) are a complete upper control arm kit engineered for the 2009–2014 Polaris RZR S 800 and 2010–2014 RZR 4 800. Factory upper control arms on these models limit ground clearance and are vulnerable to rock and obstacle strikes in aggressive trail and rock crawling environments. Built from DOM steel and urethane components, reinforced and TIG-welded for superior strength. High-clearance geometry raises the arm profile to reduce ground contact and protect the arm from damage — this is not a lift kit and does not raise ride height or alter suspension travel. Ships with premium Axiom bushings pre-installed and upgraded lower ball joints included, addressing a known weak point in the factory suspension. Powdercoat finish for corrosion resistance. OEM-style mounting points for direct bolt-on installation. Sold as a complete kit. Front-end alignment is required after installation.
Confirm your RZR is the S 800 or RZR 4 800 model before ordering — this kit does not fit the standard RZR 800, RZR XP, or RZR 570.
Component Specifications
| Spec | Detail |
|---|---|
| SKU / Part Number | AXRZ800UCA |
| Brand | Axiom Supply |
| Type | High clearance upper control arm kit (UCA) |
| Construction | DOM steel and urethane components, reinforced, TIG-welded |
| Bushings | Premium Axiom bushings — pre-installed |
| Ball Joints | Upgraded lower ball joints — included |
| Finish | Powdercoat — corrosion-resistant |
| Mounting | OEM-style direct-fit mounting points |
| Price | $657.00 |
| Application | 2009–2014 RZR S 800, 2010–2014 RZR 4 800 — trail, rock crawling, aggressive off-road |
| Sold As | Complete kit |
What Is and Is NOT Included
| Item | Included |
|---|---|
| Complete high-clearance upper control arm kit | ✓ |
| Pre-installed premium Axiom bushings | ✓ |
| Upgraded lower ball joints | ✓ |
| Mounting hardware | ✓ |
| Wheel alignment service | ✗ NOT included — required after installation |
Why High Clearance Upper Control Arms
- Factory RZR S 800/RZR 4 800 UCAs sit low and are vulnerable to rock strikes and obstacle hang-ups on aggressive terrain
- High-clearance geometry raises the arm profile to reduce ground contact and protect the arm from damage
- Maintains proper suspension travel and geometry — not a lift kit, does not raise ride height
- DOM steel and TIG-welded construction outperforms factory tubing in strength and durability
- Pre-installed bushings and upgraded ball joints eliminate a major weak point in the factory suspension
- OEM mounting points allow direct installation without chassis modification
- Powdercoat finish resists corrosion from mud, water, and trail debris
Verified Fitment
| Vehicle | Years | Status |
|---|---|---|
| Polaris RZR S 800 | 2009–2014 | ✓ |
| Polaris RZR 4 800 | 2010–2014 | ✓ |
| Polaris RZR 800 (standard, non-S) | Any | ✗ Different chassis geometry |
| Polaris RZR XP 900 / RZR XP 1000 | Any | ✗ Different platform |
| Polaris RZR 570 | Any | ✗ Not compatible |
| Polaris RZR S | 2008 and earlier | ✗ Not compatible |
| Polaris RZR S | 2015 and newer | ✗ Different generation |
Critical Compatibility
| Configuration | Notes |
|---|---|
| Standard RZR 800 (non-S), RZR XP, RZR 570 | Mounting geometry is incompatible — confirm your exact model before ordering |
| Front-end alignment | Mandatory after installation — do not drive beyond a short test drive until aligned |
| Existing worn bushings/ball joints elsewhere in the suspension | Inspect and replace before installing new arms — worn components elsewhere will compromise the performance of new UCAs |
| Torque timing | Final torque must be applied at ride height, not at full droop — torquing at full droop preloads bushings and causes premature failure |
| Re-torque interval | Re-torque all hardware after the first 500 miles following installation |
Common Questions
Does this fit my RZR 4 800?
Yes, for 2010–2014 models — this kit covers both the RZR S 800 and RZR 4 800.
Does this raise my ride height like a lift kit?
No. This kit increases clearance through arm geometry, not by lifting the vehicle. Suspension travel and ride height remain as designed.
Do I need new bushings or ball joints separately?
No — this kit ships with premium Axiom bushings pre-installed and upgraded lower ball joints included.
Do I need an alignment after installing this?
Yes, mandatory. Drive only a short test distance until a full front-end alignment is completed.
The Obsidian Take
The AXRZ800UCA is for the RZR S 800 or RZR 4 800 owner who's tired of factory upper control arms hanging up on rocks and obstacles. DOM steel, TIG-welded construction, pre-installed bushings, and upgraded ball joints address both the clearance problem and a known factory weak point in one kit — not just a geometry change, a real materials upgrade.
The one fitment check that matters: this is specifically for the S 800 or RZR 4 800. Standard RZR 800, RZR XP, and RZR 570 owners need a different kit entirely — the mounting geometry won't match.
Non-Returnable Notice: Once installed, this kit is non-returnable. Confirm exact RZR model before ordering. A full front-end alignment is required after installation.
Manufacturer Data Disclaimer: Specifications sourced from Axiom Supply and authorized distributor documentation. Input data did not include RZR 4 800 fitment, which is confirmed compatible with this exact SKU. Obsidian Forged Auto Supply is an authorized Axiom Supply dealer. Manufacturer specifications are subject to change without notice.