Unmatched Power and Precision Engineering
Experience next-level off-road performance with the SuperATV GDP 4” Portal Gear Lift, designed exclusively for the Polaris RZR XP Turbo. This advanced portal system gives you the power and durability to dominate any terrain with confidence. Choose between a 15% or 30% gear reduction to perfectly match your riding style—whether you crave high-speed desert runs or torque-heavy mud adventures. Built with precision and strength in mind, the GDP Portal Gear Lift transforms your RZR into a machine that’s ready for anything.
Dual Idler® Gear Technology for Superior Strength
SuperATV’s Dual Idler® system redefines performance and reliability. By integrating a second idler gear, the load is distributed across twice the surface area, ensuring smoother torque transfer and reducing wear. Each gear is precision CNC ground from ultra-tough 9310 steel alloy, resulting in unmatched strength and durability. This design minimizes stress on internal components and ensures consistent performance even under extreme conditions. When you need the strongest and most dependable gear set on the market, Dual Idler® delivers.
Built for Every Terrain
No matter where you ride—mud, dunes, rocks, or trails—the GDP 4” Portal Gear Lift keeps your Polaris RZR XP Turbo performing at its peak. The 15% gear reduction provides balanced torque for speed and agility, while the 30% reduction delivers maximum low-end power for oversized tires and deep mud. Each portal is engineered for versatility and longevity, so you can push limits without compromise.
Enhanced Drivetrain Protection
By relocating the gear reduction to the hub, this portal system dramatically reduces strain on your RZR’s differential, axles, prop shaft, and transmission. The innovative design ensures smoother power delivery and helps prevent premature wear, allowing you to ride harder and longer with less maintenance. It’s engineered protection that pays off every time you hit the throttle.
Heavy-Duty Construction and Sealing
Every component of this portal kit is built to handle the toughest conditions. The housings, available in billet or cast aluminum, are reinforced for superior gear retention and optimal oil flow. Backing plates made from advanced steel alloy provide exceptional strength—stronger than chromoly. The system is fully sealed with high-performance gaskets and O-rings, preventing oil leaks and keeping contaminants out. Double-angular contact bearings and roller idlers ensure smooth operation and long-lasting reliability.
Performance-Driven Design Features
- Available in billet or cast aluminum housing
- Dual idler configuration for maximum torque transfer
- Precision ground 9310 alloy billet steel gears for quiet, efficient operation
- 4” lift height with 4” per side width increase for improved stability
- 1.5” diameter 4340 hardened steel drive shaft for unmatched durability
- Universal hub fits all major bolt patterns
- Advanced sealing system prevents oil leaks and contamination
- Reduces drivetrain stress for longer component life
- Lighter, stronger, and more efficient than comparable systems
Wheel and Fitment Requirements
- Requires 14” or larger wheels
- 14” & 15” wheels: maximum 4.5” backspacing
- 16” and larger wheels: maximum 5” backspacing
- Factory 14” wheels require 2” wheel spacers
- Not compatible with dual beadlock wheels
- Minimum 3.25” (82.55mm) center hole or