Polaris Ball Joint Replacement – EPI Upper & Lower 4130 Chromoly
Upgrade your suspension performance and restore steering precision with this heavy-duty Polaris ball joint replacement from EPI Performance. Designed for both upper and lower control arm applications (depending on model), this versatile ball joint is engineered to deliver superior strength, durability, and long-lasting performance in the toughest off-road conditions.
Manufactured from 4130 chromoly steel and finished with a corrosion-resistant zinc coating, this ball joint is built to outperform standard OEM components. Whether you’re working, riding trails, or pushing your machine through rugged terrain, this replacement ensures smoother suspension movement and improved handling.
Key Features
- 4130 Chromoly Steel Construction: Stronger than OEM for enhanced durability and performance.
- Dual Application Design: Works as both upper and lower ball joint depending on model.
- Zinc Plated Finish: Protects against corrosion and extends service life.
- Pre-Lubricated with Lithium Grease: Ensures smooth articulation and reduced wear.
- OEM Replacement Fit: Designed for precise fitment across a wide range of Polaris models.
- Sold Individually: Replace one ball joint per unit (two required for full front replacement).
Technical Specifications
- Brand: EPI Performance
- Product Type: Ball Joint
- Position: Upper / Lower (model dependent)
- Material: 4130 Chromoly Steel
- Finish: Zinc Plated
- Lubrication: Lithium Grease
- Fitment Type: Direct OEM Replacement
Compatibility / Applications
This Polaris ball joint replacement fits a wide range of UTV models including:
- Polaris Ranger / Ranger XP 900 / XP 1000
- Polaris RZR 900 / RZR S / RZR Trail
- Polaris General 1000
- Polaris PRO XD models
Compatible with multiple trims and configurations from approximately 2012 to 2026. Always verify exact model fitment before ordering.
Important Fitment Note
2018–2019 Polaris Ranger XP 1000 models (including Northstar, Crew, Premium, 20th Anniversary, High Lifter, and Back Country editions) require a different lower ball joint (BJP-5) for lower control arms.
Why Choose This Polaris Ball Joint?
Worn ball joints can cause loose steering, clunking noises, uneven tire wear, and poor suspension performance. This EPI Performance ball joint offers a professional-grade OEM replacement that restores your vehicle’s handling and stability without the cost of replacing entire control arms.
Built for off-road durability and engineered for precision, this ball joint is ideal for riders and professionals who demand reliable performance from their Polaris UTV in any environment.
Cross-reference part/SKU numbers: BJP-3, 79-12097










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