LG A7TC Spark Plug for GY6 50cc–150cc Engines (139QMB, 154QMI, 157QMJ)

Product Overview

High-quality LG A7TC spark plug designed for GY6 horizontal engines, delivering reliable ignition, faster throttle response, and stable performance for 50cc–150cc Chinese-made vehicles.

Specifications

Item	Details
Spark Plug Model	LG A7TC
Thread Size	M10 × 1
Engine Type	4-Stroke Horizontal Engine
Electrode Material	Nickel Alloy
Insulator Material	High-Temperature Ceramic
Condition	Brand New Aftermarket

Product Compatibility

Category	Compatible Models
Engine Displacement	50cc / 70cc / 90cc / 110cc / 125cc / 140cc / 150cc
Engine Models	GY6 Horizontal Engine Series
Common Engine Codes	139QMB, 154QMI, 157QMJ
Vehicle Types	ATV, Dirt Bike, Pit Bike, Go Kart, Buggy, Scooter
Brand Fitment	Most Chinese-made brands using GY6 engines
Spark Plug Type	A7TC Equivalent

Key Features

• Designed for GY6 horizontal engine ignition systems
• High-quality ceramic insulator resists cracking under high heat
• Nickel alloy electrode ensures stable spark and long service life
• Helps improve throttle response and cold starts
• Optimized combustion contributes to better fuel efficiency and lower emissions