Kohler Generator Inventory

Kohler's integrated paralleling controls allow seamless load sharing between multiple units without external switchgear. Their PowerBoost technology maintains voltage within 1% during block loading—critical for sensitive medical equipment. Plus, Kohler's 2-hour emergency service response beats Caterpillar's 4-hour standard in Southern California.

Beyond emissions (Tier 3 produces 50% less NOx), the key differences are operational. Tier 2 units are simpler, with no aftertreatment systems—ideal for standby applications under 100 hours/year. Tier 3 adds exhaust gas recirculation (EGR) but runs cleaner for mobile applications. In California, Tier 3 is required for portable use over 50HP.

With proper maintenance, Kohler diesel generators average 15,000-20,000 hours before major overhaul. Natural gas units typically reach 25,000-30,000 hours. We have customers running 1990s Kohler units with 40,000+ hours. Compare that to residential-grade units failing at 2,000 hours.

Yes, all Kohler natural gas generators from 2018+ are RNG-compatible without modifications. The REZGT series actually performs better on RNG due to higher methane content (98% vs. 93% in pipeline gas). This makes Kohler the preferred choice for California facilities meeting carbon-neutral mandates.

Don't use generic calculators. Kohler's sizing is different because of their Fast-Response excitation. A Kohler 125REZGT (100KW) can handle the starting load that requires a 150KW generator from others. We provide free load analysis using Kohler's proprietary sizing software—it's saved customers an average of $8,000 by avoiding oversizing.

Kohler Power Modules (like the 1000REOZDN) are generator sets designed for parallel operation. They include integrated paralleling controls, allowing you to combine multiple units for redundancy. Instead of one 2000KW generator, use two 1000KW modules—if one needs service, you still have power.

Kohler offers the industry's most comprehensive warranty: 5 years/5,000 hours on standby applications, 2 years/8,760 hours on prime power. More importantly, warranty service is performed by factory-certified technicians, not third-party contractors. Claims are processed in 48 hours, not weeks.

Kohler's APM603 controller includes built-in renewable interface protocols. The generator seamlessly integrates as tertiary backup after solar/battery depletion. Kohler's load management prevents generator cycling during partial solar production—a common problem with competitor controllers.