---
product_id: 24853669
title: "EPS-400C-ES/BB EPS 400 BB Motor 3.40:1 GD w/Spinner"
brand: "grand wing servo"
price: "₩60515"
currency: KRW
in_stock: false
category: "Toy"
url: https://www.desertcart.kr/products/24853669-eps-400c-es-bb-eps-400-bb-motor-3-40
store_origin: KR
region: South Korea
---

# EPS-400C-ES/BB EPS 400 BB Motor 3.40:1 GD w/Spinner

**Brand:** grand wing servo
**Price:** ₩60515
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** EPS-400C-ES/BB EPS 400 BB Motor 3.40:1 GD w/Spinner by grand wing servo
- **How much does it cost?** ₩60515 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/24853669-eps-400c-es-bb-eps-400-bb-motor-3-40)

## Best For

- grand wing servo enthusiasts

## Why This Product

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

## Description

This is the GWS EPS-400C Electric Power System.FEATURES: Pre mounted GWS EM400 Ball Bearing motor with 3" (76mm) 18 gauge leads and a pin connector Grey plastic motor and gear housing 3.40:1 drive ratio 20T pinion gear and 68T spur gear 1??" Black plastic spinner with adapter to accept 2 blade propsINCLUDES: One pre-assembled 300 motor, 6.60:1 geardrive, 1??" spinner systemREQUIRES: 7.2V-8.4V battery (600-1000 NiCd) (730-200 NiMH) GWSQ2011 10x6 prop (Sport Flyer) GWSQ2019 9x7 prop (Slo Flyer) GWSQ2023 11x8 prop (Slo Flyer) GWSQ2022 11x4.7 prop (Slo Flyer) GWSQ2024 12x6 prop (Slo Flyer)SPECS: Diameter of motor case: 1.1" (27.7mm) Length of case behind spinner: .87" (22mm) Distance from spinner to case: .80" (20.3mm) Distance from pinion to prop shaft: .70" (17.6mm) Length from top of case to bottom of case: 1.8" (47mm) Weight: 3.3oz (295g)GWSPart GWSEPS-400C-ES/BB

## Images

![EPS-400C-ES/BB EPS 400 BB Motor 3.40:1 GD w/Spinner - Image 1](http://ecx.images-amazon.com/images/I/41sT-Hv5aVL.jpg)

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**Shop now:** [https://www.desertcart.kr/products/24853669-eps-400c-es-bb-eps-400-bb-motor-3-40](https://www.desertcart.kr/products/24853669-eps-400c-es-bb-eps-400-bb-motor-3-40)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-03*