--- product_id: 275763408 title: "Glixal GY6 49cc 50cc to 100cc Engine 50mm Cylinder Head Assy, 69mm Valves | Non EGR Style, Fits 139QMB 139QMA 147QMD Engine Taotao Kymco Jonway Vento Roketa JCL Jmstar Scooter Moped ATV Quad Go Kart" brand: "glixal" price: "$84.88" currency: USD in_stock: true reviews_count: 9 category: "Glixal" url: https://www.desertcart.us/products/275763408-glixal-gy6-49cc-50cc-to-100cc-engine-50mm-cylinder-head store_origin: US region: United States of America --- # 50mm combustion chamber Fully assembled GY6 100cc head 69mm precision valves Glixal GY6 49cc 50cc to 100cc Engine 50mm Cylinder Head Assy, 69mm Valves | Non EGR Style, Fits 139QMB 139QMA 147QMD Engine Taotao Kymco Jonway Vento Roketa JCL Jmstar Scooter Moped ATV Quad Go Kart **Brand:** glixal **Price:** $84.88 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your ride with power and precision — don’t get left behind! ## Quick Answers - **What is this?** Glixal GY6 49cc 50cc to 100cc Engine 50mm Cylinder Head Assy, 69mm Valves | Non EGR Style, Fits 139QMB 139QMA 147QMD Engine Taotao Kymco Jonway Vento Roketa JCL Jmstar Scooter Moped ATV Quad Go Kart by glixal - **How much does it cost?** $84.88 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/275763408-glixal-gy6-49cc-50cc-to-100cc-engine-50mm-cylinder-head) ## 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 - • **Trusted by Riders:** 4.5-star rated with proven compression boost from 75 to 180 psi - • **Effortless Upgrade:** Fully assembled cylinder head ready to replace your worn-out EGR head - • **Seamless Compatibility:** Fits most Chinese 49cc-100cc scooters & ATVs including JONWAY & TAOTAO - • **Maximized Combustion Efficiency:** 50mm combustion chamber designed for higher compression and smoother rides - • **Power-Boosting Precision Valves:** 69mm valves engineered for optimal airflow and performance ## Overview The Glixal ATGT-12Z is a fully assembled 50mm cylinder head with 69mm valves designed to replace EGR heads on GY6 49cc to 100cc 4-stroke engines. Compatible with popular Chinese scooters and ATVs, it enhances compression and engine efficiency, delivering a reliable performance boost favored by riders seeking a smooth, powerful upgrade. ## Description 1.This Cylinder Head Will Replace The EGR Head as long as You Have The Correct Valve Cover2.Replacement for GY6 49cc 50cc to 100cc 4 Stroke 139QMB and 1P39QMB Engine with 69mm Valves Cylinder Head 3.Fits Most of Chinese Made Scooters and ATV. Such as JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, Dongfang, Kazuma, JCL, BMS Review: Great replacement cylinder head for gy6 49 cc - This head had some negative reviews. I disassembled the head after receiving it relapsed in the valves and lubricated the valve stems and reassembled did a check on each port to make sure there were no leaks, and everything was perfect. After installing the head compression went from 75 psi to 180 and the scooter started right back up. Review: Hell yeah - The best ## Features - 69mm Length Valves, Fully Assemblied GY6 100cc 50mm Cylinder Head - Intake Valve Diameter- 18.5mm - Exhaust Valve Diameter-16mm - Combustion Chamber Diameter-50mm - This a Non EGR Head, Does Not Have the EGR Port ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08RX9X72X | | Best Sellers Rank | #334,102 in Automotive ( See Top 100 in Automotive ) #48 in Powersports Cylinder Heads | | Brand | Glixal | | Customer Reviews | 4.5 4.5 out of 5 stars (132) | | Date First Available | January 2, 2021 | | Item Weight | 2.64 pounds | | Manufacturer | Glixal | | Manufacturer Part Number | ATGT-12Z | | Package Dimensions | 6.18 x 5.71 x 3.11 inches | ## Images ![Glixal GY6 49cc 50cc to 100cc Engine 50mm Cylinder Head Assy, 69mm Valves | Non EGR Style, Fits 139QMB 139QMA 147QMD Engine Taotao Kymco Jonway Vento Roketa JCL Jmstar Scooter Moped ATV Quad Go Kart - Image 1](https://m.media-amazon.com/images/I/71oEEpjRgrL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great replacement cylinder head for gy6 49 cc *by R***S on May 10, 2024* This head had some negative reviews. I disassembled the head after receiving it relapsed in the valves and lubricated the valve stems and reassembled did a check on each port to make sure there were no leaks, and everything was perfect. After installing the head compression went from 75 psi to 180 and the scooter started right back up. ### ⭐⭐⭐⭐⭐ Hell yeah *by G***N on April 23, 2025* The best ### ⭐⭐⭐⭐⭐ exact fit with all the parts *by K***N on October 27, 2024* I liked it fit perfect, done its job making my scooter faster ## Frequently Bought Together - Glixal ATGT-12Z GY6 49cc 50cc to 100cc Scooter Engine 50mm Cylinder Head Assy with Valves Set for 139QMB 139QMA Chinese Moped ATV Go Kart Quad (Non EGR Type, 69mm Valves) - Glixal ATMT1-011 139QMB 139QMA Scooter Big Bore Cylinder Kit Rebuild Kit GY6 100cc 50mm Moped ATV Go-Kart - Glixal ATKS-029 GY6 50cc 100cc High Performance A9 Camshaft 139QMB 139QMA Scooter Moped ATV --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/275763408-glixal-gy6-49cc-50cc-to-100cc-engine-50mm-cylinder-head](https://www.desertcart.us/products/275763408-glixal-gy6-49cc-50cc-to-100cc-engine-50mm-cylinder-head) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-24*