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Description
Portals are geared for all, and that means we’re not putting anyone in a box. Choose a 15% or a 30% gear reduction to match your ride style. Love going big and going deep? Get 30% gear reduction for maximum torque and bigger tires. Prefer trail riding? Get a 15% gear reduction. Need ultimate strength? Opt for our dual idler configuration. The choice is yours. Ride your way wherever you want. Let GDP take you where no one else can go.
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
Love mud? The deeper you go, the more you’ll realize how much torque a 30% portal gear reduction really gives you. Plus that extra ground clearance will keep you from getting swamped. Portals plus mud just makes sense. For trails, desert, and dunes, check out our 15% gear reduction that maintains a higher top speed while still giving you punchy torque.
A Gear Reduction That Protects Your Drivetrain
Portals have their gear reduction right in the hub. That makes this gear reduction reduce the stress on your axles, differential, Prop shaft, and transmission. You can ride harder than stock and cause less wear. It’s a win-win, and a recipe for fun.
Stronger Housings by Design
You think you can find better housings that GDP housings? Think again. Our housings are stronger by design. We know what makes a housing break and why. That’s why whether you choose cast or USA-made 6061 billet aluminum with a dead sexy CNC-machined finish, you’re getting a kick-ass housing with unmatched strength and reliability. Plus, they’re supported by our unstoppable backing plates made with an advanced steel alloy.
- 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
Complete the Package with a Frame Stiffener
Portals and monster tires are fun, but they can place additional stress on your machine’s frame. To make your suspension bulletproof, don’t forget to add a SuperATV Frame Stiffener when you check out!
Technical Specifications
- MFG. Part Number PGH-1-21-151
Vehicle Information
Polaris Scrambler 1000 ATV (2014-2026)
The Polaris Scrambler 1000 series, spanning from 2014 to 2026, is a high-performance ATV known for its powerful 952cc ProStar 4-stroke SOHC twin-cylinder engine, consistently delivering 89 horsepower across all models. It has been a flagship performance model throughout its production. A significant evolution occurred in 2020 with the introduction of the Scrambler XP 1000 S. While maintaining the same engine, this "S" model featured a completely new, stronger chassis, advanced Walker Evans adjustable suspension, and a more robust drivetrain derived from the RZR XP 1000. It also brought technological enhancements like selectable throttle modes. Prior to 2020, the Scrambler XP 1000 was the primary high-performance trim. Q: How do I ensure this part fits my specific Scrambler 1000?
A: Please use the year and edition selector at the top of the page to confirm compatibility for your exact model.
Maintenance
| Component | Interval | Details |
| Engine Oil and Filter | 25 hours (initial break-in) | Change engine oil and filter. |
| Front Gearcase Fluid | 25 hours (initial break-in) | Initial fluid level inspection. |
| Transmission Fluid | 25 hours (initial break-in) | Initial fluid level inspection; inspect for fluid leaks; add lubricant if needed. |
| General Inspection | 25 hours (initial break-in) | Careful treatment of a new engine and drive components is recommended for efficient performance and longer life. |
| Engine Oil and Filter | Every 50 hours or 1,600 km or yearly | Change engine oil and filter. |
| Air Filter | Every 50 hours or 1,600 km or yearly | Inspect and clean; replace as necessary. Ensure proper installation of the filter and airbox cover. Inspect ducts and screens and clean as necessary. |
| Drive Belt | Every 50 hours or 1,600 km or yearly | Inspect and replace as needed. |
| Coolant | Every 50 hours or 1,600 km or yearly | Inspect fluid level and inspect for leaks; add coolant if needed. Inspect coolant strength seasonally and pressure test the system yearly. |
| Spark Arrestor | Every 50 hours or 1,600 km or yearly | Clean out. |
| Front Gearcase Fluid | Every 50 hours or 1,600 km or yearly | Change fluid. |
| Transmission Fluid | Every 50 hours or 1,600 km or yearly | Change fluid. |
| Spark Plugs | Every 3,200 km or 2 years | Inspect and replace as needed. |
| Coolant System Flush | Every 8,000 km or 5 years |