Polaris RZR Turbo 8 Inch Portal Gear Lift – 50% Dual Idler

Polaris RZR Turbo 8 Inch Portal Gear Lift – 50% Dual Idler

The RZR Turbo 8 Inch Portal Gear Lift with 50% Dual Idler gearing is engineered for high-horsepower builds that demand extreme ground clearance, massive torque multiplication, and uncompromising durability. Designed specifically for Polaris RZR XP Turbo models, this 8” portal system transforms your machine into a true big-tire, high-boost off-road weapon.

The 50% gear reduction delivers maximum torque to the ground while reducing drivetrain stress on belts, axles, and differentials — critical for turbocharged platforms. Whether you’re building an aggressive mud machine or tackling extreme terrain, this portal lift provides the mechanical advantage your Turbo needs.

Forged Gear Boxes – Built for Boost

• Forged aluminum gear boxes with tight grain structure for superior mechanical strength.
• Eliminates porosity and internal weaknesses found in cast designs.
• Stronger than billet and cast aluminum alternatives.
• Engineered to withstand extreme impact and high-horsepower abuse.

50% Dual Idler Gear Advantage

• Massive torque multiplication for oversized tire builds.
• Dual idler design spreads load across more gear teeth to reduce internal stress.
• Improves drivetrain durability under turbo power.
• Enhanced engine braking and overall control.

Advanced Sealing & Protection

• High-density Kevlar fiber gaskets – oil and coolant resistant.
• Dual oil seals on the spindle shaft for increased sealing surface.
• True triple-seal input shaft including protective wiper seal.
• Optional gearbox venting capability to improve cooling and seal longevity.

Heavy-Duty Structural & Brake Components

• 5/16” steel backing plates with bent flanges and welded gussets.
• Clocked backing plate design for maximum big tire clearance.
• 13” precision-ground stainless steel slotted rotors for superior braking performance.
• CNC precision-ground, heat-treated alloy steel gears.
• Controlled gear lapping for smoother and quieter operation.

Wheel Requirements

• Minimum 22” wheels required.
• 24” wheels recommended for optimal 8” portal performance.

Vehicle Fitment (2016–2021 Models)

• 2016–2021 Polaris RZR XP Turbo EPS
• 2016–2021 Polaris RZR XP 4 Turbo EPS
• Dynamix Edition models
• Fox Edition models

The Polaris RZR Turbo 8 Inch Portal Gear Lift 50% Dual Idler version is built for riders who want extreme clearance, maximum torque transfer, and professional-grade drivetrain strength for high-horsepower Turbo builds.

Cross-reference part/SKU numbers: PGL-850DI-RZRT, 73-15998