Radium Engineering Primary Fuel Rail - Kawasaki Ninja H2 / Teryx H2 2015+

The primary rail mounts to the throttle bodies and feeds the four primary injectors on the supercharged H2. It is CNC machined from solid 6061 aluminum, anodized and laser etched, with three 3/4in-16 (8AN ORB) ports and four injector bores machined for 11mm upper injector O-rings. It is compatible with all fuel types including E85. Reaching it means pulling the intake plenum cover, which has fifteen perimeter screws, and the four velocity stacks, and the rail then mounts on new supplied screws rather than the four OEM bolts. Because the H2 runs its fuel lines on opposing sides of the engine, the feed uses a dual banjo adapter, which is supplied in the matching 20-1136-PK plumbing kit.

Specifications

This part fits:

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy