RZR XP900 STS Lower A-Arm Kit
The Lone Star Racing STS Lower A-Arm Kit for the Polaris RZR XP900 is a heavy-duty, direct-replacement solution designed to eliminate the weaknesses of factory lower control arms. Built from 4130 chromoly steel, these arms provide superior strength and durability for aggressive trail riding, desert abuse, and racing conditions.
Unlike OEM arms, Lone Star Racing STS lower A-arms are greasable, helping extend service life and reduce wear under harsh off-road use. These arms reuse your factory pivot hardware and OEM ball joints, making installation straightforward while significantly upgrading strength and reliability.
This kit is ideal for riders looking to reinforce their front suspension without altering geometry or requiring custom components.
🛠️ Key Features & Benefits
- Direct replacement for OEM lower A-arms
- Significantly stronger than stock components
- Greasable design for longer service life
- Maintains factory suspension geometry
- Ideal for trail, desert, and race use
🔩 Construction & Design
- 4130 chromoly steel construction
- Precision TIG-welded for maximum durability
- Grease fittings for easy maintenance
- Designed to withstand aggressive off-road abuse
- Proven Lone Star Racing STS design
📦 Kit Includes
- (2) STS lower A-arms
- Grease fittings pre-installed
Lower A-arms only
🚙 Vehicle Fitment
- Polaris RZR XP900
- STS suspension applications
- Direct OEM bolt-on fitment
- Reuses factory ball joints and pivot hardware
⚠️ Important Notes
- Sold as a pair of lower A-arms only
- OEM upper A-arms not included
- Alignment recommended after installation
- Professional installation recommended for best results
- Designed for off-road use only
🏁 Why Choose the Lone Star Racing XP900 STS Lower A-Arm Kit?
Factory lower A-arms are a common failure point on the RZR XP900. The Lone Star Racing STS Lower A-Arm Kit delivers race-proven chromoly strength while retaining OEM components for simplicity and reliability. If you want a bolt-on upgrade that lasts longer and rides harder, this is the solution.
Upgrade your XP900 suspension with confidence using Lone Star Racing STS Lower A-Arms—built to handle whatever the trail throws at you.
