Boost Control Solenoid 4 Port

Overview

The Haltech 4-port boost control solenoid delivers precise electronic boost control for complex turbo setups where standard 3-port units fall short. Purpose-built for high-boost applications and multiple wastegate configurations, this solenoid gives your Haltech ECU complete authority over boost pressure across the entire rev range.

Technical Specifications

• Part Number: HT-020401
• Configuration: 4-port electronic boost control solenoid
• Operating Pressure: Suitable for high-boost applications
• Control Type: PWM (Pulse Width Modulation)
• Compatibility: Haltech ECU boost control outputs

Why You Need This

Standard 3-port boost control solenoids struggle with complex turbo setups, particularly twin-turbo configurations, compound turbo systems, or single turbos with multiple wastegate actuators. The 4-port design provides the additional control flexibility needed for these advanced applications. Without proper boost control hardware, you'll experience boost creep, inconsistent pressure curves, and potential engine damage from uncontrolled overboosting.

This becomes critical on builds like twin-turbo LS swaps in drift cars, compound turbo diesel conversions, or high-boost SR20DET builds running external wastegates with multiple actuators. The 4-port configuration allows your Haltech ECU to manage boost delivery precisely, maintaining target pressures even under varying load conditions. We regularly spec these on customer builds exceeding 400bhp where boost accuracy is non-negotiable for both performance and engine longevity.

ECU & System Compatibility

Compatible with the full Haltech Elite and Nexus range, including Elite 550, 750, 1000, 1500, 2000, and 2500 ECUs, plus Nexus R3 and R5 units. All these ECUs feature dedicated boost control outputs with PWM capability specifically designed to drive solenoids like this. Contact our technical team to confirm optimal setup for your specific turbo configuration and ECU model.

What's in the Box

• Haltech 4-port boost control solenoid
• Electrical connector and terminals
• Mounting hardware
• Technical documentation

Complete Your Build

Most customers fitting this solenoid also require pressure sensors, boost hoses, and T-pieces for proper installation. Our technical team can recommend the complete boost control package for your specific turbo setup, whether you're running a single GT28 on an SR20 or compound turbos on a Cummins swap. With UK stock and same-day despatch, we'll have your boost control system sorted quickly. Contact us for pre-sales advice on integrating this solenoid with your existing setup.