Cummins ISL “5301100” (2012-Present) Air Compressor

Precision Remanufacturing Backed by Real TestingAt Turbo Kings, every Cummins 5301100 air compressor is rebuilt with precision, process control, and certified testing that meet or exceed OEM specifications.Manufactured by Bendix and installed on Cummins ISL and PACCAR PX-9 engines from 2012 to present, this compressor belongs to the trusted BA-921 platform — a water-cooled, single-cylinder, gear-driven design proven across modern heavy-duty and vocational applications.Rated at approximately 15.5–16.0 CFM at 1250 RPM, the 5301100 provides stable, high-volume air output for braking, suspension, and auxiliary systems.Its compact, low-vibration design is favored by fleets for long-term reliability and reduced service downtime compared to older TF-series compressors.We don’t reseal or touch up cores — we completely rebuild, calibrate, and validate every unit through a six-stage process that restores factory flow, efficiency, and mechanical integrity.Each compressor is fully disassembled, media-cleaned, and precision-measured. Cylinder bores are gauged for taper and wear, crank journals for clearance, and valve plates for sealing accuracy.All critical internals — pistons, bearings, connecting rods, crank assemblies, and valves — are replaced using Bendix-spec OEM-grade components, ensuring consistent performance and long-term dependability.During the rebuild, all air and coolant passages are ultrasonically cleaned, eliminating carbon, rust, and mineral scale that can obstruct internal flow and reduce cooling efficiency. This ultrasonic restoration ensures unrestricted airflow and stable operating temperatures under sustained load.Once assembled, every compressor undergoes bench testing under simulated engine load, confirming pressure build rate, cut-in/cut-out stability, oil carryover control, and leak-free operation.This is not estimated performance — it’s measured, documented, and verified right here at Turbo Kings.What Makes a Turbo Kings Rebuild DifferentBendix OEM Foundation – Built from Bendix engineering data and restored to Cummins ISL (2012–Present) specifications.In-House Flow & Pressure Testing – Each compressor tested under controlled load for accurate output and system balance.Ultrasonic Cleaning Process – All air and coolant lines ultrasonically cleaned for unrestricted flow and efficient cooling.Precision Machining – Deck surfaces and valve seats resurfaced to exact OEM tolerances for proper sealing.Pre-Lubricated & Ready to Install – Ships pre-oiled, sealed, and installation-ready.Warranty Confidence – Protected by a 12-month, unlimited-mileage warranty, with complete test data logged and stored.Why Fleets and Owner-Operators Trust Turbo KingsFleets, service centers, and dealerships trust Turbo Kings rebuilds because every compressor is flow- and pressure-tested under real operating conditions.We maintain full traceability through serialized test documentation, ensuring transparency and reliability for every unit.Our in-house ultrasonic cleaning and precision machining guarantee cooler-running compressors, leak-free performance, and extended duty life — no guesswork, just verified results.Our Process at a GlanceDisassembly & Cleaning – Full teardown and degreasing of all components.Ultrasonic Passage Cleaning – Internal air and coolant galleries restored to OEM cleanliness.Parts Replacement & Machining – All wear items replaced; surfaces machined to spec.Assembly & Torque Verification – Components aligned, torqued, and checked for proper clearances.Flow & Pressure Testing – Bench-tested for airflow, oil control, and cut-out accuracy.Final Inspection & Documentation – Serialized, logged, and paired with test and warranty data.Standard Features• Fully Flow- and Pressure-Tested• Air & Water Passages Ultrasonically Cleaned• Pre-Lubricated and Ready to Install• Leak-Free and Output-Verified• 12-Month Unlimited-Mileage Warranty• Fast Core Exchange ProgramApplicationsCompatible with:Cummins ISL 8.9L and PACCAR PX-9 engines (2012–Present)Kenworth, Peterbilt, Freightliner, and International trucks using Bendix BA-921 / 5301100 compressors