The PRP LS1 Alternator Conversion Kit allows you to upgrade your Nissan RB20, RB25 or RB26 engine to a modern GM LS1–style alternator, delivering improved charging performance, reliability, and long-term serviceability over ageing factory alternator systems. This conversion is ideal for performance and motorsport builds where electrical demand is increased due to aftermarket ECUs, ignition systems, fuel pumps, thermo fans, and additional accessories. LS-style alternators are widely available, cost-effective, and known for strong output at idle and higher RPM — making them a popular choice for modern engine builds. Designed with a focus on clean fitment and practicality, the PRP LS1 alternator conversion provides a tidy and reliable solution for RB owners looking to modernise their charging system without unnecessary complexity. Key Features Designed for Nissan RB20, RB25 & RB26 engines Converts to GM LS1–style alternator Improved charging performance and reliability Ideal for high electrical load applications Uses widely available LS-type alternators Clean, practical conversion solution Genuine Platinum Racing Products design Typical Applications Nissan RB20 / RB25 / RB26 performance builds Vehicles with aftermarket ECUs and electronics Track and motorsport cars Engine bay refreshes and conversions Fitment Notes Designed specifically for RB20, RB25 & RB26 engines Alternator selection and belt configuration may vary by setup Professional installation recommended If you’re unsure whether this kit suits your specific RB configuration, please contact us before ordering. Availability & Lead Time Due to the size and variety of the Platinum Racing Products range, some items are supplied to order rather than held on the shelf. Lead times can vary. If you need an item urgently, please contact us before ordering so we can confirm availability.