SuperATV Yamaha Wolverine X2/X4 850 4” Portal Gear Lift




Fueled Cash
Up to $74 Fueled Cash

Lowest Price GuaranteeLowest Price
Free Shipping!This Item Ships FREE

Need Help?

Contact one of our industry experts

Contact us by phone
Contact us by email

Product Details


SuperATV Yamaha Wolverine X2/X4 850 4” Portal Gear Lift


Give your YamahaWolverine X2 850 or X4 850 the gift of power and performance with SuperATV’s GDP 4” Portal Gear Lift. Choose from 15% or 30% gear reductions and cast or billet aluminum housings so you can optimize for the kind of riding that you do. Or take your strength over the top by upgrading to dual idlers. With GDP, your Wolverine is limitless.

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.

Perfect for All Kinds of Rides: Whether you’re carving through mountain trails or chest-deep in mud, GDP Portals can take your Wolverine further. A 30% gear reduction gives you tons of torque to turn big tires through mud or over rocks. A 15% gear reduction still gives you punchy torque while letting you get wild with on open throttle on trails and tracks. No matter what you’re doing, there’s a GDP Portal setup that can help.

A Gear Reduction That Protects Your Drivetrain: Because GDP Portals put the gear reduction directly in the hub, your entire drivetrain benefits. Your axles, differential, drive shaft, and transmission all work less and wear less with a portal gear lift. You can put the pedal down and have a blast without wrecking your ride.

Stronger Portals by Design: GDP Portals are built to be unmatched. Our housings are well researched and long tested. And you get a choice—go with cast or USA-made, CNC-machined 6061 billet aluminum. They’re supported by beefy backing plates made of an advanced steel alloy you won’t find in any other portal system. For robust, trail-proven strength, GDP is the only choice.

  • 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 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

Top-Rated Customer Service: Still need a little help getting exactly what you need? We’ve got a dedicated team just for portal support. Give us a call so we can get the perfect set of portals in your hands today.


  • Available with billet or cast aluminum housing
  • Dual idler gear configuration maximizes strength
  • Cool, quiet, precision ground gears made from 9310 alloy billet steel
  • Increases width by 4 in. per side (8 in. total)
  • 1.5 in. diameter 4340 hardened steel drive shaft
  • No leak bearings and seals
  • Universal hub fits all major bolt patterns
  • Gear reduction reduces stress on your drivetrain
  • Dual idler gear configuration adds a 1” offset
  • Lighter than the competition

Wheel Requirements:

  • 14” or larger wheel required
  • Wheels cannot exceed 5” backspacing
  • If using factory 14″ wheels, you must run 1″ wheel spacers
  • Not compatible with dual beadlock wheels


4” Portal Gear Lift Includes:
  • (4) Assembled Portal Hub Boxes Complete With 9310 Gears, Seals, Output Shaft, 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
  • (4) Caliper Mounting Plate Shims
  • (2) Steel Steering Arms
  • Extended Brake Lines
  • All Required Hardware, Including Recessed Castle Nut Socket


  • Yamaha Wolverine X2 : 2019+
  • Yamaha Wolverine X4 : 2018+


  • Wheels need to have a center hole of at least 3.25″ (82.55mm) or require a 1” wheel spacer.




Yamaha Wolverine X2 Portal Gear Reduction Recommendations
Tire Size Required Suspension Setup with 4″ Portals
Up to 28″ Stock


Yamaha Wolverine X4 Portal Gear Reduction Recommendations
Tire Size Required Suspension Setup with 4″ Portals
Up to 28″ Stock
Up to 28″ 2″ Lift Kit
29.5″ 2″ Lift Kit and removing inner wheel well guard
If you need help figuring out which gear reduction is right for you, give us a call.
Max tire sizes are measured at full compression and full turn. The given tires sizes are the largest we fit without rubbing. With minor trimming or a small amount of rub, larger tire sizes can be used.

Additional information

Select Idler Option

Dual, Single

Portal Housing Material

Billet, Cast

Portal Gear Reduction

15%, 30%

Enthusiasts Also Bought


    Assault Industries Quick Release UTV Fire Extinguisher Mount – 1.75″

  • On Sale

    SpeedStrap Ultimate UTV Tire Bonnet Kit



  • SuperATV Terminator UTV/ATV Mud Tire

    SuperATV Terminator UTV/ATV Mud Tire



  • On Sale

    Maxxis Roxxzilla Radial UTV Tire – 32x10R-15 Standard Compound

  • 5150 Whips Day Time Whips – 4FT (Set of 2)

  • SuperATV Assassinator UTV/ATV Mud Tires

    SuperATV Assassinator UTV/ATV Mud Tires



  • SuperATV Yamaha Wolverine X2/X4 850 6” Portal Gear Lift

    SuperATV Yamaha Wolverine X2/X4 850 6” Portal Gear Lift



  • Rugged R1 Business Band Handheld - Digital and Analog

    Rugged Radios R1 Handheld Radio – Digital and Analog



  • SuperATV Yamaha Wolverine X2/X4 Glass Windshield

    SuperATV Yamaha Wolverine X2/X4 Glass Windshield