---
product_id: 446095998
title: "ATGT-021 GY6 125cc 150cc to 155cc 58.5mm Performance Cylinder Head Assy with Valves Set for 152QMI 157QMJ Chinese Scooter Moped ATV Go Kart Engine (None EGR Type)"
brand: "glixal"
price: "¥41367"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/446095998-atgt-021-gy6-125cc-150cc-to-155cc-58-5mm-performance
store_origin: JP
region: Japan
---

# High-performance 155cc upgrade 76mm bolt pattern, 4-bolt valve cover 58.5mm combustion chamber diameter ATGT-021 GY6 125cc 150cc to 155cc 58.5mm Performance Cylinder Head Assy with Valves Set for 152QMI 157QMJ Chinese Scooter Moped ATV Go Kart Engine (None EGR Type)

**Brand:** glixal
**Price:** ¥41367
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock your ride’s hidden beast mode with Glixal’s precision power upgrade!

## Quick Answers

- **What is this?** ATGT-021 GY6 125cc 150cc to 155cc 58.5mm Performance Cylinder Head Assy with Valves Set for 152QMI 157QMJ Chinese Scooter Moped ATV Go Kart Engine (None EGR Type) by glixal
- **How much does it cost?** ¥41367 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/446095998-atgt-021-gy6-125cc-150cc-to-155cc-58-5mm-performance)

## Best For

- glixal enthusiasts

## Why This Product

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

## Key Features

- • **Non-EGR Design:** Cleaner combustion without EGR port complexity
- • **Wide Compatibility:** Fits top Chinese scooter & ATV brands like JONWAY, TAOTAO, Kazuma
- • **Durable Build & Easy Swap:** Robust 60mm tall head with 76mm bolt pattern ensures hassle-free installation
- • **Optimized Valve Dimensions:** 28mm intake & 23mm exhaust valves for max airflow
- • **Precision Fit for GY6 Engines:** Seamlessly upgrades 125cc-150cc to 155cc powerhouses

## Overview

The Glixal ATGT-021 Cylinder Head Assembly is a high-performance, non-EGR upgrade designed for GY6 125cc to 150cc engines, boosting displacement to 155cc. Featuring a 58.5mm combustion chamber, optimized valve sizes, and a 76mm bolt pattern, it fits a wide range of popular Chinese scooters and ATVs, delivering enhanced airflow and power with easy installation.

## Description

1.This Cylinder Head Will Replace The EGR Head as long as You Have The Correct Valve Cover2.High Performance 155cc Upgrade Cylinder Head for GY6 125cc to 150cc 4 Stroke Engine3.Fits Most of Chinese Made Scooters and ATV. Such as JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, Dongfang, Kazuma, JCL, BMS

## Features

- Fits the GY6 125cc 150cc to 155cc Engine with a 60mm Tall Head,76mm Bolt Pattern & 4 Bolt Valve Cover
- Intake Valve: Outside Diameter 28mm / Length 66mm
- Exhaust Valve: Outside Diameter 23mm / Length 65.5mm
- Combustion Chamber Diameter-58.5mm
- This a Non EGR Head, Does Not Have the EGR Port

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Glixal |
| Brand | Glixal |
| Package Dimensions | 15.8 x 14.4 x 8 cm; 1.15 kg |
| Item part number | ATGT-021 |
| Manufacturer Part Number | ATGT-021 |
| Manufacturer | Glixal |
| Country of Origin | USA |
| Item Weight | 1 kg 150 g |

## Images

![ATGT-021 GY6 125cc 150cc to 155cc 58.5mm Performance Cylinder Head Assy with Valves Set for 152QMI 157QMJ Chinese Scooter Moped ATV Go Kart Engine (None EGR Type) - Image 1](https://m.media-amazon.com/images/I/71wWFtSGBRL.jpg)

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**Shop now:** [https://www.desertcart.jp/products/446095998-atgt-021-gy6-125cc-150cc-to-155cc-58-5mm-performance](https://www.desertcart.jp/products/446095998-atgt-021-gy6-125cc-150cc-to-155cc-58-5mm-performance)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-22*