RER11939 Rear Portal Box

The RER11939 Rear Portal Box is a heavy-duty drivetrain upgrade designed to deliver increased ground clearance, enhanced torque, and superior off-road performance. Engineered for durability and precision, this rear portal box relocates the axle centerline to provide lift without compromising suspension geometry. Ideal for extreme terrain, mud, rock crawling, and utility applications, it enhances both capability and reliability in demanding conditions.

Built with high-strength materials and precision-machined components, the RER11939 ensures smooth power transfer, improved gear reduction, and long-term durability. Whether upgrading for performance or replacing a worn component, this rear portal box delivers consistent, dependable results.

Key Features

• Increased ground clearance for improved off-road capability

• Integrated gear reduction for enhanced torque output

• Heavy-duty housing for maximum durability

• Precision-machined gears for smooth, reliable power transfer

• Optimized axle geometry to maintain proper suspension alignment

• Sealed design to protect against mud, water, and debris

• Ideal for off-road, utility, and high-performance applications

• Engineered for long-lasting performance in extreme environments