Polaris RZR XP 1000 4" Portal Gear Lift (STANDARD)
Polaris RZR XP 1000 4" Portal Gear Lift (STANDARD)
Polaris RZR XP 1000 4" Portal Gear Lift (STANDARD)
Polaris RZR XP 1000 4" Portal Gear Lift (STANDARD)

Polaris RZR XP 1000

Polaris RZR XP 1000 4" Portal Gear Lift (STANDARD)

Sale price$3,354.90
Select Idler-Portal Housing Material-Portal Gear Reduction:Single-Billet-15%
Do you have a lift-kit?- Do you need a frame stiffener?:With 7-10 inch lift - Yes



  • Polaris RZR XP 1000 : 2014+
  • Polaris RZR XP 4 1000 : 2014+


  • Please check the bolt size of the hardware that fastens the Radius Arms to the brace plate (see image below). Select the socket size that corresponds to your OEM size. Polaris made a change in the mid-year in 2017 that has caused some confusion with fitment.
  • Wheels need to have a center hole of at least 3.25" (82.55mm) or require a 1” wheel space


    Unbeatable Power and Performance
    We didn’t make the first side-by-side portal kit on the market—just the first kit that anybody gave a damn about. If you want to see what unbeatable power and performance can do for your Polaris RZR XP 1000, get SuperATV’s 4” GDP Portal Gear Lift. You get the perfect combination of ground clearance and torque from your choice of a 15% or 30% gear reduction. Get the strength your wild rides need by adding dual idlers to the package. Nobody does portals like GDP. If you want peak RZR performance, make sure it’s GDP.

    What is a Dual Idler?
    Perfection takes time. After years of research and development, we’ve made our dual idler gear portals unlike any other. By placing a second idler gear in the portal box, the load gets spread over twice as much surface area for more reliable torque transfer and the strongest gear set you can get. Two idler gears don’t do a thing if they’re not mated perfectly, though. Precision CNC grinding ensures ours do. Our gears are made from the industry’s toughest 9310 steel alloy. Didn’t think dual idlers mattered? With GDP’s quality and experience, they finally do.

    Ride Anywhere You Want
    GDP Portals aren’t just for one type of rider. Whether you like trails or mud, whether you take it easy or cut loose, our portals will give you a better experience. Get a 15% gear reduction for faster rides with enough torque to start getting wild. If you want the ultimate geared-down, torqued-up ride for monster tires, go with a 30% gear reduction. Grab dual idlers on either if you’re the kind of rider that can break anything. The extra strength is for you.

    A Gear Reduction That Protects Your Drivetrain
    With the gear reduction in the hub, it makes life easier for the entire drivetrain before it. Your axles maintain factory geometry and work less. Your axles, prop shaft, differential, and transmission are under less stress. That means longer lasting components, and a lift that doesn’t destroy your machine.

    Strength Through and Through
    Strength is the core of everything we do. If it’s not strong, it’s not worth your time. That’s why our cast and billet aluminum housings are the thickest and strongest you can get. Combine that with 5/16” backing plates made from an advanced steel alloy, and our portals are unstoppable.

    • Our housings are reinforced for gear retention and optimized for oil flow
    • Advanced steel alloy backing plates are stronger than chromoly
    • Enhance with Portal Blood—gear oil formulated for GDP Portals
    • There are no gimmicks and no vents because vents do more harm than good—we know because we tested them

    Advanced Gaskets, Seals, and Bearings
    Our portals use:

    • Advanced Thermo-Tork® gaskets and O-rings with excellent oil resistance and low deterioration rates
    • A sealed input gear and double-lipped output seal
    • 100% sealing coverage throughout so you can forget about oil leaks
    • Double-angular contact output bearings to prevent premature wear
    • Roller idler and drive bearings to maintain perfect gear meshing

    Protect Your RZR with a Frame Stiffener
    Extra ground clearance and bigger tires lead to more action-packed rides. But can your stock frame keep up? To stay confident while you put pedal to the metal, consider adding a SuperATV Frame Stiffener when installing your new portals.

    Top-Rated Customer Service
    Still need a little help getting exactly what you need? With GDP, you get a dedicated portal tech support team because nobody likes to get an automated response. Give us a call so we can get the perfect set of portals in your hands today.

    4” Portal Gear Lift Includes:
    (4) Assembled portal hub boxes complete with 9310 gears, seals, output shaft, Thermo-Tork® gaskets, and thrust bearings
    (4) Universal hubs and precision-ground stainless steel slotted rotors with lugs
    (4) Specialized steel alloy backing plates
    (4) Steel caliper mounting plates
    (2) Caliper adapter plates
    (2) Steel steering arms
    Extended brake lines
    All required hardware, including recessed castle nut socket