Injector safety clip kit, 4pcs

Injector Safety Clip Kit 4pcs — Secondary Injector Retention for Nuke Performance Fuel Rails

The 1200-21-004 is a 4-piece injector safety clip kit for Nuke Performance fuel rails, providing secondary mechanical retention for all 4 injectors in a 4-cylinder engine installation. The safety clips snap over the injector collar at the fuel rail socket, creating a positive mechanical lock that supplements the primary O-ring compression fit — preventing injectors from working loose under fuel pressure pulsations, vibration, or mechanical disturbance.

Why Secondary Injector Retention Matters

In a high-performance fuel system running elevated fuel pressure, fuel pressure pulsations from high-flow injectors create repetitive mechanical loads on the injector-to-rail interface. Without a retaining clip, these pulsations can gradually work the injector upward out of the rail socket over time — particularly on engines subject to high vibration levels from racing conditions. A displaced injector leaks fuel at the rail socket rather than atomising it into the intake port — a fire risk and a significant engine damage risk from the resulting lean condition.

Complete Set for 4-Cylinder Engines

This kit provides the complete set of 4 clips for a 4-cylinder installation, ensuring all injectors are equally retained without the risk of a single unclipped injector failing while others remain secure. Always fit retaining clips as part of any performance injector installation on a Nuke Performance fuel rail.

Quality and Availability at Arctic Performance Parts

Arctic Performance Parts is the Norwegian-based specialist for Nuke Performance products, serving motorsport builders and performance enthusiasts across Norway, Sweden, and Denmark. Founded from Wankel Service AS — where the owner has rebuilt and tuned rotary and performance engines since 2003 — Arctic Performance Parts brings over 23 years of hands-on engineering experience to every product recommendation. Most Nuke Performance items are stocked for prompt despatch, with a supplier lead time of 1–2 weeks for extended quantities.