RDR Performance Ignition Coil & Spark Plug Wire - GY6 139QMB

This RDR performance ignition coil, spark plug wire, and boot upgrades the spark delivery on compatible GY6 and 139QMB engines for sharper throttle response and dependable ignition. Its tightly wound high-tension design reduces resistance and supports faster firing, with a 5–15% increase in spark output over stock coils. The cut-to-fit orange wire lets you build a tidy ignition setup without excess lead getting in the way.

Key Features

• Stronger spark delivery: A 5–15% spark-output increase over stock coils supports consistent ignition on a compatible setup
• Responsive performance: The tight-wound coil design reduces resistance and supports faster firing for improved throttle response
• Custom wire routing: Trim the orange high-voltage lead to suit your vehicle rather than looping excess wire around the engine
• Screw-on spark plug boot: Supplied unattached from the factory so the wire can be cut before the boot is installed
• Two spade terminals: Connects to matching two-terminal ignition-coil wiring
• Taiwan-made construction: Performance replacement for suitable GY6 and 139QMB applications

Technical Specifications

• Brand: RDR
• Part number: 169-15
• Part type: High-tension performance ignition coil
• Overall length: 19 inches
• Wire length: 14 inches
• Electrical connections: Two spade terminals
• High-voltage wire: Orange, cut to fit
• Spark plug boot: Screw-on type, supplied unattached
• Engine applications: Matching 139QMB / QMB139 50cc and GY6 125/150cc systems
• Country of origin: Taiwan
• Contents: Ignition coil, high-voltage wire, and spark plug boot

Compatibility

Compare the original coil's ignition-system requirements, terminal arrangement, mounting points, wire routing, and spark plug connection before ordering. Engine code and two spade terminals alone do not establish compatibility.

Installation: Route the high-voltage wire clear of hot or moving components, leaving enough slack for normal movement. Cut the wire to the required length, then screw the supplied boot onto the wire end for a secure connection. Follow the vehicle's service procedure and confirm all ignition connections are secure before use.

This product is intended for off-road use only. This product is not intended for use on public roads or land.

• Tight-wound high-tension coil design for reduced resistance and faster firing
• 5–15% spark output increase over stock coils
• Orange high-voltage wire with unattached screw-on spark plug boot
• Two spade terminals for matching ignition-coil wiring
• Cut-to-fit wire for custom routing
• Made in Taiwan

Brand: RDR; Part number: 169-15; Type: high-tension performance ignition coil; Overall length: 19 in; Wire length: 14 in; Connections: two spade terminals; Wire: orange, cut to fit; Boot: unattached screw-on type; Engine applications: matching 139QMB/QMB139 50cc and GY6 125/150cc; Country of origin: Taiwan; Contents: ignition coil, high-voltage wire, and spark plug boot

Chinese-manufactured scooters, ATVs, and go-karts with 139QMB/QMB139 50cc or GY6 125/150cc engines; requires matching ignition-system requirements, two-terminal wiring, mounting, wire routing, and spark plug connection