HKS 45999-AN003 Sensor Set for SR20 Crank Angle Sensor Kit

The HKS 45999-AN003 is a replacement sensor set designed for use with the dedicated HKS SR20 Crank Angle Sensor Kit on Nissan vehicles equipped with the SR20DET engine. This sensor set is a key component of HKS's high-precision crank angle sensing system, engineered to address the inherent signal inaccuracies of the factory setup.

In the stock configuration, the crank angle signal is generated through the cam angle sensor, making it susceptible to timing chain fluctuation — particularly at high engine speeds and under heavy load. The HKS 45999-AN003 sensor set resolves this by enabling separate crankshaft and camshaft position signal detection, delivering a cleaner, more stable signal to the ECU.

Key Features:

• Designed specifically for the HKS SR20 Dedicated Crank Sensor Kit
• Enables independent crankshaft and camshaft position signal detection
• Reduces signal variation caused by timing chain fluctuation
• Supports accurate engine speed recognition under high-load and high-RPM conditions
• Optimized trigger phase for reliable engine starting performance
• Field-proven design used in HKS complete engine builds
• Not CARB compliant — not for sale in California

The HKS 45999-AN003 sensor set is an essential component for SR20DET-powered builds running an aftermarket engine management system that demands precise crank and cam angle data. Compatible with the Nissan 180SX (RPS13) and Silvia S13, S14, and S15 platforms with the SR20DET engine.