---
product_id: 127420822
title: "AR320399 F/R Composite Upper Gearbox Cvr/Shock Twr ARAC4400 Elec Car/Truck Replacement Parts"
brand: "arrma"
price: "22087CFA"
currency: XOF
in_stock: true
reviews_count: 13
category: "Arrma"
url: https://www.desertcart.sn/products/127420822-ar320399-f-r-composite-upper-gearbox-cvr-shock-twr-arac4400
store_origin: SN
region: Senegal
---

# Vehicle-specific compatibility Precision fit for seamless upgrades Durable composite material AR320399 F/R Composite Upper Gearbox Cvr/Shock Twr ARAC4400 Elec Car/Truck Replacement Parts

**Brand:** arrma
**Price:** 22087CFA
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your ride with precision and power — don’t get left behind!

## Quick Answers

- **What is this?** AR320399 F/R Composite Upper Gearbox Cvr/Shock Twr ARAC4400 Elec Car/Truck Replacement Parts by arrma
- **How much does it cost?** 22087CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/127420822-ar320399-f-r-composite-upper-gearbox-cvr-shock-twr-arac4400)

## Best For

- arrma enthusiasts

## Why This Product

- Trusted arrma brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Tough composite construction ensures long-term durability under stress
- • **All-in-One Upgrade:** Combines gearbox cover, shock tower, suspension mounts, and steering brace in one kit
- • **Perfect Fit Guarantee:** Vehicle-specific design means no guesswork, just plug and play
- • **Trusted by Enthusiasts:** Highly rated with 4.6 stars from 468 RC pros who demand reliability
- • **Engineered for Precision:** Seamless integration with your ARRMA kit for hassle-free servicing

## Overview

The ARRMA AR320399 Composite Upper Gearbox Covers and Shock Tower kit offers a durable, precision-engineered replacement for front and rear gearbox components on ARAC4400 electric cars and trucks. Crafted from tough composite plastic, this vehicle-specific set integrates multiple key mounts for a streamlined upgrade, ensuring long-lasting performance and easy maintenance. Highly rated by RC enthusiasts, it’s the perfect stock replacement to keep your model running like new.

## Description

These high-quality front and rear upper gearbox cases and shock towers provide ideal replacement parts for you kit supplied items.Features:Tough composite material for long lasting durability - Precision manufactured for consistent fit and easy servicing - Integrates gearbox cover, shock tower, body post mount, upper inner suspension mount and steering braceIncludes:1 x Front Gearbox Upper Cover 1 x Rear Gearbox Upper Cover

Review: Perfect stock replacement part. - Perfect stock replacement!
Review: Good replacement - Fits fine, good as new again!

## Features

- ARRMA Composite Front Rear Upper Gearbox Covers and Shock Tower, ARAC4400

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B077XLJ7FJ |
| Auto Part Position | Upper |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #78,471 in Toys & Games ( See Top 100 in Toys & Games ) #49 in RC Vehicle Scale Accessories |
| Brand | ARRMA |
| Brand Name | ARRMA |
| Compatible with Vehicle Type | Car, Truck |
| Customer Reviews | 4.6 out of 5 stars 468 Reviews |
| Included Components | Composite Front Rear Upper Gearbox Covers and Shock Tower |
| Item Type Name | Boat |
| Item Weight | 0.27 Pounds |
| Manufacturer | ARRMA |
| Manufacturer Part Number | AR320399 |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | ARAC4400 |
| Number of Packs | 2 |
| OEM Equivalent Part Number | AR320399 |
| Set Name | ARRMA Vehicle Upgrade Kit |
| Style | Modern |
| Style Name | Modern |
| Unit Count | 1.0 Count |
| Vehicle Service Type | Car, Truck |

## Product Details

- **Auto Part Position:** Upper
- **Brand:** ARRMA
- **Material:** Plastic
- **Style:** Modern
- **Vehicle Service Type:** Car, Truck

## Images

![AR320399 F/R Composite Upper Gearbox Cvr/Shock Twr ARAC4400 Elec Car/Truck Replacement Parts - Image 1](https://m.media-amazon.com/images/I/61Td2FrgwOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect stock replacement part.
*by M***K on January 21, 2026*

Perfect stock replacement!

### ⭐⭐⭐⭐⭐ Good replacement
*by A***. on April 22, 2025*

Fits fine, good as new again!

### ⭐⭐⭐⭐⭐ Always there to help..
*by J***S on April 29, 2026*

Great quality and came on time ive never had a issue..

## Frequently Bought Together

- ARRMA Composite Front Rear Upper Gearbox Covers and Shock Tower, AR320399 Grey
- ARRMA Composite Chassis - LWB, ARA320608
- ARRMA Composite Center Slider Driveshaft: 4x4 BLX, ARAC3955 Black

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**Shop now:** [https://www.desertcart.sn/products/127420822-ar320399-f-r-composite-upper-gearbox-cvr-shock-twr-arac4400](https://www.desertcart.sn/products/127420822-ar320399-f-r-composite-upper-gearbox-cvr-shock-twr-arac4400)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-07-19*