Meritor “S4324711010” Air Dryer

Precision Remanufacturing Meets New-Build EngineeringThe Turbo Kings S4324711010 Air Dryer is a brand-new replacement for the OEM Knorr-Bremse assembly used on Detroit Diesel DD13 and DD15 engines from 2010–2014. Designed and produced entirely by Turbo Kings, this unit is not a reman or re-cored product—it’s built from the ground up to exceed factory performance and longevity standards.Each new build replicates the exact form, fit, and function of the original APU (Air Processing Unit) design, ensuring direct installation compatibility with factory brackets and airline routing on Freightliner Cascadia and Western Star applications. Every component is engineered to deliver consistent purge cycles, rapid regeneration, and balanced circuit protection under continuous fleet-duty operation.Precision Engineering and Advanced Air ManagementTurbo Kings’ new-build S4324711010 air dryers are designed for total pneumatic protection, combining both moisture control and circuit distribution in a single, compact unit. Internal channels are CNC-machined to maintain laminar air flow, reducing turbulence and improving drying efficiency compared to cast-style cores.Fully New Aluminum Housing: Cast and machined to OEM geometry with corrosion-resistant anodizing.Multi-Circuit Protection Valve: Distributes dry air to primary, secondary, and auxiliary tanks, preventing backflow between systems.High-Capacity Desiccant Cartridge: Factory-packed with long-life absorbent media to ensure maximum moisture capture.12V Heating Element: Prevents freeze-up and condensation during cold starts.Integrated Purge Valve Assembly: Factory-torqued and pressure verified to maintain optimal purge timing.Pressure Relief Safety Valve: Calibrated to maintain system integrity under high-load compressor cycles.Each unit undergoes pressure and leak testing up to 150 PSI, along with electrical continuity validation on the heating circuit.What Makes a Turbo Kings Air Dryer DifferentUnlike reman units that rely on reused housings and valves, Turbo Kings air dryers are 100% brand-new builds—precision-machined, sealed, and validated for OEM interchange right out of the box. This approach eliminates performance inconsistency caused by aged castings, worn valve seats, or contamination in reused cores.Our new-build advantage ensures faster reservoir recovery, longer desiccant life, and smoother purge transitions across all operating conditions. The result is a dryer that maintains stable air quality, reduces compressor workload, and extends the life of downstream valves and modulators.Our Process at a GlanceCNC Casting & Surface TreatmentHeater Circuit Assembly and Electrical ValidationInternal Valve Calibration & Leak TestingDesiccant Cartridge Loading and Purge VerificationFull Pressure Testing at 120–150 PSIFinal Inspection, Serialization, and PackagingSpecificationsOperating Pressure: 120–150 PSIVoltage: 12V HeaterConfiguration: Integrated Multi-Circuit DesignCompatible Models: DD13 / DD15 / DD16 (2010–2014)Core Charge: None (Brand New Unit)Warranty: 6 Months / Unlimited Mileage