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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 Sportsman 1000 ATV (2015-2026)
The Polaris Sportsman 1000, produced from 2015 to 2026, is a sport-utility ATV renowned for its robustness and versatility. At the heart of this series is a 952cc ProStar 4-stroke SOHC twin-cylinder engine, delivering reliable power for both work and recreation. Designed to tackle the most demanding terrains, the Sportsman 1000 has established itself as a preferred choice for outdoor enthusiasts and professionals alike. While the engine displacement has remained constant, Polaris has introduced variations in horsepower (ranging from 85 to 90 HP) and numerous trims over the years. These evolutions, such as the wider "S" models, "High Lifter" editions for mud, or "Ultimate" versions with advanced technologies, represent continuous improvements rather than a complete platform redesign. Q: Is my Sportsman 1000 compatible with this part?
R: To confirm exact compatibility, please use the year and trim selector on this page.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | Break-in period: 25 hours or 800 km (or 1 month). After break-in: 100 hours or 1,600 km, or annually. | Change filter with every oil change. Vehicles subjected to severe use require more frequent maintenance. |
| Drive Belt | Inspection: 50 hours or 400 km. Regular inspection/replacement: 100 hours or 1,600 km, or annually. | Replace as needed, typically between 1,600 and 3,200 km. Lifespan varies with riding style. |
| Spark Plugs | 200 hours or 3,200 km, or every 24 months. | Inspect and replace as needed. Some models may have different intervals (e.g., 100 hours or 1,000 km). |
| Air Filter | Inspection/cleaning: Before every ride or as needed. Replacement: 100 hours or 1,600 km, or annually. | Replace more frequently in dusty or muddy conditions. Replace immediately if soaked. |
| Coolant | Level check: Daily or before every ride. Complete drain and refill: Every five years. | Inspect strength seasonally and pressure test the system annually. |