Cummins 8.3L ISC / ISL “5301084RX” (2008–2011) Air Compressor

Precision Remanufacturing, Tested to OEM StandardsAt Turbo Kings, every Cummins 5301084RX air compressor—commonly known in the trade as the 8.3 compressor—is rebuilt through a meticulous process that restores factory-level durability, performance, and pressure consistency.Originally built by Bendix for Cummins ISC and ISL engines (2008–2011), this single-cylinder, water-cooled, gear-driven unit is the heart of the air system in thousands of Freightliner, International, and vocational trucks.Designed for roughly 13–15 CFM @ 1250 RPM, the 5301084RX provides steady, reliable airflow to braking and suspension systems under constant highway or vocational use. The robust cast-iron crankcase resists distortion under heavy cycling, while the precision-machined aluminum head ensures optimal cooling and long-term valve life.At Turbo Kings, we go beyond standard reseal jobs. Each compressor undergoes full disassembly, media cleaning, and dimensional inspection. Crankshaft journals, bores, and valve seats are precision-measured for wear and re-machined within strict Bendix tolerance. We replace all internal wear components—including rings, bearings, gaskets, and valves—with OEM-grade or superior replacements to guarantee stable compression and minimal oil carry-over.Every housing and passage is ultrasonically cleaned, eliminating carbon, scale, and coolant residue from deep internal channels. This process ensures unrestricted air and coolant flow for efficient temperature management and consistent system pressure.Each rebuilt unit is bench-tested under simulated load, verifying output flow, pressure build rate, cut-in/cut-out calibration, and leak-free operation. Compressors that don’t meet OEM pressure curves are reworked and retested until they pass final certification.What Makes a Turbo Kings Rebuild DifferentOEM Bendix Foundation – Direct-fit replacement for Cummins ISC/ISL 8.3L applications.Precision Machined to OEM Specs – Decks, bores, and valves trued to micron-level tolerances.Ultrasonic Passage Cleaning – Removes stubborn internal buildup for like-new flow.Full Flow & Pressure Testing – Every unit validated under hydraulic and pneumatic load.Pre-Lubricated and Installation-Ready – Assembled and sealed for direct drop-in use.12-Month Unlimited-Mileage Warranty – Serialized and documented with test results.Why Fleets and Owner-Operators Trust Turbo KingsFleet operators choose Turbo Kings compressors because they deliver verified reliability—not speculation. Our rebuilds match or exceed OEM flow ratings while reducing oil contamination and premature valve wear. The result: improved uptime, lower maintenance cost, and long-term confidence on the road.Our Process at a GlanceComplete Disassembly & Inspection – Dimensional check on crankshaft, bore, and head.Ultrasonic Cleaning – Air, coolant, and oil circuits fully cleared.Component Replacement – New rings, valves, bearings, and gaskets.Machining & Deck Resurfacing – Precision flatness and sealing verified.Bench Flow & Pressure Testing – Validated output under simulated load.Final Serialization & Documentation – Each unit test-logged before shipment.Standard Features• Fully Flow- & Pressure-Tested• Ultrasonically Cleaned Internal Passages• Leak-Free and Output-Verified• Pre-Lubricated, Ready to Install• 12-Month Unlimited-Mileage Warranty• Core Exchange Program AvailableApplicationsCompatible with:Cummins ISC / ISL 8.3L (2008–2011)Freightliner, International, Peterbilt, and vocational chassisOEM Cross References: 5301084, 5301084RX, 4318213, 4089483, Bendix BA-921