HPI Racing Heavy Duty Final Gear Set 36T/14T — Nitro RS4 3 18SS

Overview

The HPI Racing Heavy Duty Final Gear Set (36T x 14T) is a heat-treated final-drive gear pair designed for the HPI Nitro RS4 3 touring car family. These gears are standard equipment on the high-performance Nitro RS4 3 18SS, 18SS+, and Nitro RS4 3 Evo+ cars, and can be installed on the standard Nitro RS4 3 for increased drivetrain strength, extended maintenance intervals, and a taller gear ratio for higher top speed.

The set includes one 36-tooth ring gear and one 14-tooth bevel gear. Two sets are required for a complete upgrade of both differentials in a Nitro RS4 3 car. Not recommended for Nitro MT off-road trucks due to the taller gear ratio.

Key Features

• Genuine HPI Racing heavy-duty gear set
• Heat-treated for added strength
• 36T ring gear + 14T bevel gear
• Taller gear ratio for higher top speed
• Factory equipment on 18SS, 18SS+ and Evo+

Performance Benefits

• Increased drivetrain strength
• Extended maintenance intervals
• Higher top speed via taller ratio
• Heat-treated for high-power use

Usage Notes

• Two sets required for full car (front + rear differential)
• Not recommended for Nitro MT off-road trucks
• Use proper diff grease
• Verify gear mesh after installation

Technical Specs

• Type: Heavy Duty Final Gear Set
• Ring Gear: 36 Tooth
• Bevel Gear: 14 Tooth
• Material: Heat-Treated Steel
• Manufacturer: HPI Racing

What's Included

• (1) 36T Ring Gear
• (1) 14T Bevel Gear

Fitment

• HPI Nitro RS4 3 — upgrade
• HPI Nitro RS4 3 18SS — factory equipment
• HPI Nitro RS4 3 18SS+ — factory equipment
• HPI Nitro RS4 3 Evo+ — factory equipment
• Not recommended for HPI Nitro MT off-road trucks

Summary

Step up the strength and top speed of your Nitro RS4 3 with this genuine HPI heat-treated 36T/14T heavy-duty final gear set.