Furuno

Furuno NN3D Gear Box - 25kW

SKU: 34188 · UPC: 611679319197 · MPN: RSB118-095
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02 · Overview

Furuno NN3D Gear Box - 25kW — Product description

Enhance Your NavNet 3D Radar Performance with the Reliable Gear Box

Marine enthusiasts and professionals know the importance of a smooth-operating radar system on the water. The Furuno NN3D Gear Box for 25kW setups, model RSB118-095, serves as a critical component in the DRS25A radar dome, ensuring precise rotation and long-term durability in harsh marine environments. Designed specifically for NavNet 3D systems, this gearbox keeps your radar scanning reliably, even during extended voyages or in rough seas.

Unlike generic replacements, this OEM gearbox maintains the exact specifications Furuno engineers for optimal torque and minimal vibration, preventing signal distortion and extending the life of your entire radar array.

Key Features and Specifications

  • Power Rating: Built for 25kW radar output, matching high-performance DRS25A domes.
  • Precision Engineering: Robust construction with sealed bearings to resist corrosion from saltwater exposure.
  • Smooth Rotation: Delivers consistent 24 RPM scans for clear, real-time target detection.
  • Compact Design: Direct fit replacement without modifications to existing mounts.
  • Durability Focus: High-grade materials withstand extreme temperatures from -25°C to +70°C.

These features make it an indispensable upgrade or spare for vessels relying on Furuno's NavNet 3D ecosystem for navigation safety.

Perfect Compatibility for NavNet 3D Systems

This gearbox integrates seamlessly with Furuno's DRS25A 4-foot radar antenna, a staple in NavNet 3D chartplotter networks. It's engineered to pair with popular models like the NavNet 3D black box processors and TZTouch interfaces, ensuring plug-and-play reliability. Whether you're running a single radar setup on a sportfisher or a multi-antenna array on a larger yacht, it supports the full range of NavNet 3D functionalities, including MARPA target tracking and ARPA simulation.

Boat owners upgrading from older radars or facing wear from constant use will appreciate how it restores factory-fresh performance without recalibrating your entire system.

Benefits of Upgrading Your Radar Gear Box

A failing gearbox often leads to erratic scanning, noisy operation, or complete radar downtime—risks no skipper can afford. Installing this 25kW gearbox minimizes these issues by:

  • Reducing mechanical noise for quieter bridge operation.
  • Improving radar image stability for better collision avoidance.
  • Preventing costly secondary damage to the magnetron or waveguide.
  • Boosting resale value of your vessel with maintained OEM parts.

Captains report fewer service calls and enhanced confidence in all weather conditions after replacement, making it a smart investment for proactive maintenance.

Installation Tips and Maintenance Best Practices

While professional installation is recommended for safety, experienced marine technicians can handle the swap in under an hour. Always power down the system, secure the vessel, and follow Furuno's alignment procedures to maximize accuracy.

For longevity:

  1. Inspect seals annually and apply marine grease to moving parts.
  2. Avoid mounting in direct engine exhaust paths to prevent overheating.
  3. Monitor for unusual vibrations early—prompt replacement averts bigger repairs.
  4. Pair with Furuno's radar stabilizers for heavy seas.
Important Note: This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

Why Choose Furuno's NN3D Gear Box for Your Vessel

Furuno's reputation for marine radar excellence stems from decades of innovation. This gearbox embodies that legacy with superior build quality over aftermarket alternatives, which often fail prematurely in saltwater. It's not just a part—it's peace of mind for commercial fishers, charter operators, and recreational boaters navigating busy waterways or open oceans.

By sticking with genuine Furuno components, you ensure compatibility with future software updates and access to their world-class support network.

Frequently Asked Questions

What is the Furuno NN3D Gear Box 25kW used for?

It's a replacement rotating gearbox for the Furuno DRS25A 25kW radar dome in NavNet 3D systems, ensuring smooth antenna rotation and reliable scanning performance.

Is the RSB118-095 compatible with all NavNet 3D radars?

Yes, it's specifically designed for the DRS25A 25kW model within the NavNet 3D lineup, offering a direct fit for most configurations.

What are the signs that my radar gearbox needs replacement?

Look for grinding noises, intermittent scanning, excessive vibration, or failure to rotate—common indicators in marine environments.

Can I install the NN3D Gear Box myself?

DIY is possible for skilled users, but professional installation is advised to maintain warranty and ensure proper alignment.

How does this gearbox improve radar reliability?

It provides sealed, corrosion-resistant bearings and precise torque for consistent 24 RPM operation, reducing downtime in harsh conditions.

What's the return policy for this gearbox?

This product may not be returned to the original point of purchase. Contact the manufacturer directly for any issues.

Does it work with newer Furuno systems like TZTouch?

Yes, it integrates fully with NavNet 3D networks, including TZTouch displays, preserving full radar features.

NN3D Gear Box - 25kW

Furuno's NN3D Gear Box DRS25A NavNet 3D.

Features:
  • 25kW
This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

Features: 25kW Warning: This product can expose you to chemicals known to cause cancer, birth defects or other reproductive harm in California. For more...
SKU: NVN-34188
MPN: RSB118-095
UPC: 611679319197
03 · The numbers

Technical specifications

BrandFuruno
ModelFuruno NN3D Gear Box - 25kW
SKU / MFR#34188

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04 · Before you buy

Frequently asked questions

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05 · Customer voices

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