Precision Remanufacturing & Performance Testing
The Turbo Kings AD-HF “K092871RX” Air Dryer is a professionally rebuilt unit engineered to restore Bendix OEM performance at a fraction of new-replacement cost. Each dryer is fully disassembled, hot-alkaline cleaned, pressure-tested, and reassembled with premium high-temperature components.
The AD-HF (Heated Filter) design integrates a high-flow desiccant cartridge and a thermostatically controlled heating element to prevent freeze-ups and moisture contamination in harsh operating environments. This model offers improved airflow and faster regeneration over earlier AD-IS and AD-IP units, making it ideal for late-model trucks running DD13, DD15, and Cummins X-series engines.
What Makes a Turbo Kings Rebuild Different
Every AD-HF that enters our rebuild program is remanufactured to exacting mechanical and electrical standards. Our technicians perform complete tear-downs, replacing all wear components and verifying electrical continuity across the heater circuit and purge valve assembly.
High-Temp BRV O-Rings – Installed throughout purge and check-valve assemblies for long-term sealing under heat and vibration
HP-870 Synthetic Grease – Used on all internal piston and valve components to prevent corrosion and sticking
OEM Heater Element – 12V Bendix-spec heater verified for amperage draw and thermal response
Hot Alkaline Cleaning Process – Removes oil, carbon, and corrosion from internal galleries
Pressure-Tested to 150 PSI – Confirms full air-tight integrity and proper purge cycling
Restored to OEM Flow Rates – Ensures rapid recovery and moisture-free delivery to air tanks
Each dryer undergoes both dry-bench simulation and wet air purge validation, replicating on-vehicle operating conditions between 135 and 150 PSI.
Why Fleets and Owner-Operators Trust Turbo Kings
Turbo Kings rebuilds are designed to perform like new and endure demanding fleet duty cycles. The AD-HF’s integrated purge valve and high-capacity desiccant chamber provide consistent drying efficiency, reducing compressor strain and downstream contamination.
Our process restores these dryers beyond cosmetic refurbishment — we target functional reliability: precise valve timing, correct purge sequence, and consistent pressure retention. Every remanufactured unit is serialized, tested, and sealed for moisture control before leaving our facility.
Customers choosing Turbo Kings receive a ready-to-install unit, purged, neutralized, and pre-lubed — no pre-adjustments or external calibration required.
Our Process at a Glance
Complete Disassembly: All housings separated, desiccant removed, and components inspected.
Cleaning Stage: Hot alkaline bath removes carbon, oil, and corrosion deposits.
Seal & Valve Replacement: High-temperature BRV O-rings and OEM-grade valves installed.
Lubrication: HP-870 synthetic grease applied to moving components.
Heater Validation: 12V heater tested for continuity, resistance, and amperage accuracy.
Pressure & Purge Testing: Bench-tested to 135–150 PSI for purge performance and leak integrity.
Final Assembly & Packaging: Purged, moisture-sealed, serialized, and prepared for shipment.
Specifications
Operating Pressure: 135 – 150 PSI
Voltage: 12 V Heater
Type: AD-HF (Heated Filter)
Core Charge: $300
Warranty: 6 Months / Unlimited Mileage
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