Cummins

Cummins' moat comes from deep engine and power systems engineering, emissions compliance expertise, OEM relationships, installed-base service economics, and a global distributor and dealer network. Heavy-duty customers care about uptime, warranty backing, parts availability, certification, and fleet familiarity, which makes replacement slower than in consumer software markets.

The moat is not purely technological. Many combustion-engine components are manufacturable by others, and long-run pressure from electrification, emissions rules, alternative fuels, and open control standards can erode lock-in. The most durable defenses are certification, integration, service density, and trust in safety-critical industrial environments.

Cummins is only moderately decentralizable because engines, high-power generators, hydrogen equipment, and commercial vehicle powertrains require precision manufacturing, safety validation, regulatory compliance, and field support. Those constraints favor large firms and certified suppliers.

Decentralization pressure is still credible at the edges: open energy management software, open EV charging protocols, community microgrids, modular repairable machinery, and open-source power-unit designs can reduce dependence on proprietary fleet and energy stacks. These forces are more likely to commoditize control layers, service workflows, and smaller power modules before they displace certified heavy-duty engines outright.