Genuine Shimano Di2 EW-SD300 Dummy Plug / Connector Cap

Shimano Part Number: Y7HE30000

Protect unused EW-SD300 Di2 E-Tube ports from dust, dirt and moisture with this genuine Shimano dummy plug. Designed to seal open SD300 connection ports, this cap helps prevent water ingress and corrosion, ensuring long-term reliability of your Shimano 12-speed Di2 or STEPS electronic drivetrain.

Ideal as a replacement for lost plugs or when leaving an E-Tube port unused.

Features

• Genuine Shimano OEM replacement part
• Protects unused EW-SD300 E-Tube ports
• Helps prevent dirt, moisture and corrosion
• Lightweight, durable plastic construction
• Quick push-fit installation
• Suitable for road, gravel and e-bike Di2 systems using SD300 wiring

Compatible with Shimano EW-SD300 Components Including

Road Di2

• Dura-Ace ST-R9270 & ST-R9250
• Ultegra ST-R8170 & ST-R8150
• Shimano 105 ST-R7170 & ST-R7150
• GRX 12-Speed Di2 components

Battery & Junction Components

• BT-DN300 Internal Battery
• EW-SD300 wiring system
• Compatible SD300 junctions and components with unused E-Tube ports

STEPS eBike Systems

• EP801
• EP600
• EP500
• Other Shimano STEPS components using EW-SD300 connections

Package Includes

• 1 × Genuine Shimano EW-SD300 Dummy Plug

Shimano Part Number: Y7HE30000

Please ensure your component uses the EW-SD300 E-Tube connection system before ordering. This dummy plug is not compatible with the older EW-SD50 Di2 system.