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.
