GY6 50cc Variator Belt (669*18*30) - Model MIGY50-4037
GY6 50cc belt, 669*18*30 belt, variator belt, scooter V-belt, 139QMB engine belt, motorcycle transmission belt, GY6 replacement belt, ceinture scooter, cinghia moto, Keilriemen, curea scooter  GY6 50cc belt, 669*18*30 belt, variator belt, scooter V-belt, 139QMB engine belt, motorcycle transmission belt, GY6 replacement belt, ceinture scooter, cinghia moto, Keilriemen, curea scooter  GY6 50cc belt, 669*18*30 belt, variator belt, scooter V-belt, 139QMB engine belt, motorcycle transmission belt, GY6 replacement belt, ceinture scooter, cinghia moto, Keilriemen, curea scooter  High-quality GY6 50cc variator belt (669x18x30) for 139QMB 4-stroke short-case engines. Compatible with Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP scooters. Standard replacement belt for 10" rear wheel scooters.  GY6 50cc Variator Belt 669*18*30 | Standard Replacement V-Belt for 139QMB Engine 

GY6 50cc Variator Belt (669*18*30)

  • Brand: Mortch Motor
  • Product Code: MIGY50-4037
  • Product Viewed: 131
  • Availability: In Stock
  • Weight: 0.12kg
  • Packing Size: 7.00 x 8.00 x 15.00cm
  • US$1.99 14045 SOLD


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669 (First number in the series) = The length of the belt in millimeters.
18 (Second number in the series) = The width of the belt in millimeters.
30 (Third number in the series) = The angle of the teeth on the belt.

This is a standard replacement belt for the GY6 50cc 139QMB 4-stroke short-case engine. This belt is found on the is used on the Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others. Note: Scooters with a 10" rear wheel usually have a short case engine.

QTY in Box: 150pcs /CTN

Compatibility Notice:
  • Please verify that this parts fits your specific vehicle model and year. Many vehicles share similar name but use different parts by year or market, so always double-check your owner's manual or contact us for assistance if you are unsure.
  • We strongly recommend cross-checking with your vehicle's manual or contacting us for confirmation before purchasing.
Product Disclaimer:
  • Product photos, measurements, and descriptions are for reference only. Minor differences in color or appearance may occur due to manufacturing batches or lighting, but the functional specifications will match your ordered part.
  • Professional installation is strongly recommended. Mortch Motor is not responsible for damage or injury caused by incorrect installation, misuse, or modification of the product.
Import Fees & Taxes:
  • All prices shown do NOT include any import duties, taxes, or customs clearance fees. These charges (if applicable) are determined and collected by your local customs authority and are the responsibility of the recipient.
  • If an order is returned due to unpaid duties/taxes or refusal to clear customs, the buyer will be responsible for the original shipping costs, return shipping fees, and any related charges deducted from the refund.

Tags: Belt, Curea, V-Belt

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