Fleet staples for Class-8 tractors and heavy vocational builds. Broad torque, strong engine-brake options, and deep service coverage.
Current heavy-duty flagship. Wide torque bands and integrated aftertreatment. Common in highway tractors and heavy regional haul.
Workhorse across CM generations. Check CM/ECU family, VGT controls, and aftertreatment history for clean swaps.
Lighter than ISX15 with solid highway manners. Good fit for regional haul and weight-sensitive specs.
We routinely stock ISX variants by CPL and rating. Verify CM family, calibration, and torque rating against your transmission and cooling package.
Bread-and-butter for vocational bodies, day-cab regional, refuse/mixer, and municipal fleets. Balance of weight, torque, and serviceability.
Popular in regional/municipal work; verify aftertreatment status and harness compatibility for smooth installs.
Great mid-displacement option for vocational duty cycles. Check mounts, fan spacing, and flywheel housing for drop-in swaps.
Vocational favorite across multiple emissions eras. Confirm EGR/DPF/DEF configuration and cooler routing.
Medium-duty mainstays with wide parts support. Great for school bus, box, and municipal fleets.
Industrial/medium-duty sibling commonly found in vocational and power-unit applications.
Pre-emissions platforms prized for simplicity and durability. Great choices where earlier emissions packages are allowed.
Legendary for durability and straightforward service.
Time-tested mechanical workhorses; simple architecture with strong parts support.
Heavy-duty classic. Confirm mounts, flywheel housing, and accessory layout for clean drop-ins.
Predecessor to ISC; proven in vocational and municipal fleets.
Mechanical favorites used across medium-duty and industrial. Compact, durable, easy to service.
Compact mechanical platform used in medium-duty and repowers; verify accessory layout and mounts.
Small-displacement workhorse in industrial and vocational roles; good parts support.
