Fuel Injector Adapter - 11mm 1/2 to Full Length

Overview

Transform your fuel rail to accept compact high-flow injectors with this precision-machined adapter. Converts 11mm bore fuel rails to accept 1/2 length injectors with 14mm top O-rings, opening up massive injector choice for your build whilst maintaining proper sealing and retention.

Technical Specifications

• Part Number: HT-080002
• Rail Bore: 11mm O-ring
• Injector Compatibility: 1/2 length (34mm) with 14mm top O-ring
• Converted Length: Full-size (60mm) equivalent
• Material: Precision-machined aluminium
• Includes: Retaining clip and filter basket

Why You Need This

When you're pushing serious power through an LS swap, RB26 build, or any high-flow application, injector choice becomes critical. Many aftermarket fuel rails come with 11mm bores, but the best high-flow injectors often use 14mm top O-rings and come in compact 1/2 length formats. Without proper adaptation, you're stuck with limited injector options or facing expensive rail modifications.

This adapter solves that problem completely. We see this constantly on builds where customers want to run something like 1000cc+ injectors in a factory-style rail setup, or when converting from batch fire to sequential injection on older platforms. The included filter basket maintains fuel filtration whilst the retaining clip ensures the injector stays put under high rail pressure. It's the difference between compromising on injector choice and getting exactly what your tune demands.

ECU & System Compatibility

Works with any fuel injection system requiring this mechanical adaptation. Commonly used with Haltech Elite and Nexus ECUs when upgrading injector flow rates on sequential setups. The adapter is purely mechanical — your ECU configuration determines injector control and timing.

What's in the Box

• Haltech Fuel Injector Adapter (11mm to 14mm conversion)
• Injector retaining clip
• Fuel filter basket
• Installation instructions

Complete Your Build

Most customers upgrading their fuel system also need to consider injector flow rates, fuel pump capacity, and ECU tuning to match. Our technical team can advise on complete fuel system packages and recommend compatible high-flow injectors that work perfectly with this adapter. With UK stock and same-day despatch, we'll have your fuel system components ready whilst you're planning the rest of your build. Contact our team for application-specific advice — we've fitted these across everything from Honda B-series to modern BMW platforms.