Radium Engineering Fuel Rail – Honda K-Series K20/K24

This Radium Engineering fuel rail is designed for Honda K-series engines using OEM intake manifolds (RBC, RBB, RRC, PRB, etc). Featuring a large 0.69" internal bore, it's built to support high fuel flow demands while retaining OEM injector compatibility and clean fitment.

Key Features:

• CNC machined 6063 aluminum, black anodized and laser etched

• Large 0.69" bore supports high-horsepower applications

• Compatible with all fuel types, including E85 and methanol

• 14mm injector bores – works with OEM and OEM-style injectors

• Accepts factory fuel injector clips

• Reuses OEM Honda insulators (P/N: 16638-PNA-000)

• Includes thermal insulating washers and stainless steel hardware

Compatibility:
Fits all OEM Honda K-series intake manifolds. For aftermarket manifolds (e.g., Skunk2), check with the manufacturer for OEM fuel rail compatibility.
Not compatible with K20C1 (direct-injected) engines.

Note:
For use with the OEM fuel feed line, pair with plumbing kit 20-0230-PK (sold separately).