Generac Debuts 46L Perkins-Powered SD1250 and SD1500 Generators with 50°C Rating
Generac launched two diesel generators, SD1250 and SD1500, powered by a 46-liter Perkins 5012 V12 engine delivering improved fuel efficiency, reduced emissions and operation up to 50°C. The SD1250/SD1500 include Marathon alternators, Deep Sea G8601 controllers, up to 4160V output, monitoring, ship in Q2 2026 with 30–36 week lead times.
1. Product Introduction
Generac has unveiled two new high-capacity diesel generators, the SD1250 and SD1500, which fill a critical gap in industrial power applications by delivering robust performance and reliability in mission-critical environments.
2. Key Technical Features
Powered by a 46-liter Perkins 5012 V12 engine, both models offer improved fuel efficiency, reduced emissions and high ambient operation up to 50°C; they feature Marathon MagnaMax alternators with low reactance windings, Deep Sea G8601 controllers for onboard paralleling and flexible voltage up to 4160V.
3. Availability and Market Impact
With competitive open-set lead times of 30–36 weeks supported by a resilient supply chain, the SD1250/SD1500 start shipping in Q2 2026, targeting data centers, healthcare facilities and heavy industrial segments requiring dependable backup power.