OTR OTR065624 | AD-IP Spin-On Desiccant Air Dryer Cartridge

OTR OTR065624 AD-IP Spin-On Desiccant Air Dryer Cartridge

Help protect your heavy-duty truck's compressed air system with the OTR AD-IP Style Air Dryer Cartridge. Designed for compatible Bendix AD-IP air dryer systems, this standard desiccant replacement cartridge helps remove moisture from compressed air before it reaches critical air brake system components.

Moisture contamination in a commercial vehicle air system can contribute to corrosion, freezing, and premature wear of air brake valves, reservoirs, and pneumatic components. Routine air dryer cartridge replacement helps maintain cleaner, drier compressed air and supports dependable air brake system operation.

Featuring a convenient spin-on replacement design, this OTR air dryer cartridge includes an O-ring for compatible AD-IP air dryer maintenance.

Whether you're servicing a semi truck, performing preventive fleet maintenance, or repairing a heavy-duty compressed air system, this OTR desiccant cartridge provides a practical aftermarket replacement for properly matched air dryer assemblies.

Standard Desiccant Cartridge | Bendix AD-IP Style | Spin-On Design | Includes O-Ring

Features & Benefits

• AD-IP Air Dryer Compatibility: Designed for compatible Bendix AD-IP style air dryer assemblies.
• Standard Desiccant Media: Helps remove water vapor from compressed air.
• Spin-On Cartridge Design: Allows cartridge replacement following the manufacturer's approved maintenance procedure.
• Moisture Protection: Helps reduce water accumulation in air reservoirs and downstream components.
• Corrosion Prevention: Reducing moisture helps limit moisture-related corrosion inside pneumatic components.
• Cold Weather Performance: Helps reduce the risk of moisture-related ice formation in air system components.
• Heavy-Duty Construction: Designed to withstand demanding commercial vehicle operating conditions.
• O-Ring Included: Supplied with the applicable cartridge sealing O-ring.
• Commercial Truck Applications: Suitable for vehicles equipped with compatible AD-IP air dryers.
• Individual Replacement: Sold as one cartridge kit.

Replacement Cartridge for Bendix AD-IP Air Dryers

The OTR AD-IP air dryer cartridge is designed for compatible Bendix AD-IP compressed air dryer assemblies.

Commercial vehicle air dryers remove moisture from compressed air produced by the engine-driven air compressor. This helps protect the braking system and other pneumatic equipment against moisture-related problems.

The desiccant material inside the cartridge captures water vapor during normal air dryer operation. As the cartridge ages or becomes contaminated, its ability to dry compressed air may decrease.

Replacing the cartridge at the appropriate maintenance interval helps maintain the air dryer's intended performance.

Important: This cartridge is intended for compatible AD-IP air dryers. It should not be assumed compatible with AD-9, AD-IS, AD-SP, or other air dryer models.

Why Your Semi Truck Needs a Working Air Dryer Cartridge

Heavy-duty trucks rely on compressed air for service brakes, parking brake release, and other pneumatic vehicle systems.

Excess moisture can lead to:

• Water accumulation inside air reservoirs
• Corrosion of air brake valves and pneumatic components
• Frozen air lines or valves in cold weather
• Increased air system maintenance
• Reduced reliability of affected air brake components

Using the correct replacement desiccant cartridge helps reduce these risks and supports proper operation of the air dryer assembly.

Standard Desiccant vs. Oil-Coalescing Air Dryer Cartridges

This OTR cartridge is cataloged as a standard desiccant air dryer cartridge, designed primarily for moisture removal in compatible AD-IP air dryers.

OTR also offers a separate oil-coalescing AD-IP cartridge for applications requiring a coalescing desiccant configuration.

Standard desiccant and oil-coalescing cartridges may have different filtration characteristics and application requirements.

Do not substitute this standard desiccant cartridge for a required oil-coalescing version without approval from the air dryer or vehicle manufacturer.

Heavy-Duty Truck Applications

The OTR AD-IP cartridge may be suitable for compatible commercial vehicles equipped with the corresponding Bendix AD-IP air dryer assembly.

Potential applications include selected configurations of:

• Freightliner semi trucks
• Kenworth commercial trucks
• Peterbilt heavy-duty trucks
• International commercial trucks
• Volvo VNL and related commercial vehicles
• Mack heavy-duty trucks
• Western Star commercial trucks
• Vocational trucks and heavy-duty commercial equipment

Fitment Note: These vehicle manufacturers may use multiple air dryer models depending on year and build configuration. Confirm the installed air dryer model and original cartridge number before ordering.

OTR AD-IP Air Dryer Cartridge Cross References

This OTR air dryer cartridge is associated with the standard Bendix AD-IP replacement cartridge family. Common catalog references include:

• OTR: OTR065624
• Manufacturer Reference: RL3511XE02
• Bendix: 065624
• Bendix: 109493
• Bendix: 109493X
• Baldwin: BA5373
• Haldex: 65624K
• Automann: 170.109493
• Automann: 170.65624K
• Dayton Parts: AV065624
• SKF: 99182
• Power Products: 065624P
• International / Navistar: 2036837C91
• International / Navistar: 2500518C91
• Volvo: 3947811

Cross-Reference Notice: These references are provided for product identification and interchange research. Rebuilt cartridges, specialty filtration versions, and replacement kits may have different specifications. Verify the required cartridge type, installation components, and applicable air dryer service instructions before purchasing.

Signs Your Air Dryer Cartridge May Need Replacement

Air dryer cartridge service should follow the vehicle and air dryer manufacturer's recommended inspection and maintenance intervals.

Potential signs of air dryer performance problems include:

• Excess moisture draining from air reservoirs
• Water contamination in pneumatic components
• Recurring cold-weather air system freezing
• Contaminated or deteriorated desiccant media
• Air dryer cartridge reaching its service interval
• Moisture-related corrosion in air brake system components

Excessive moisture may also result from malfunctioning purge components, compressor problems, incorrect air system plumbing, or other air dryer faults. Diagnose the complete system before replacing parts.

OTR Air Dryer Cartridge Product Specifications

• Brand: OTR
• Part Number: OTR065624
• Manufacturer Reference: RL3511XE02
• Product Type: Air Dryer Desiccant Cartridge
• Cartridge Style: Spin-On
• Cartridge Type: Standard Desiccant
• Compatible Air Dryer: Bendix AD-IP
• Primary Function: Compressed Air Moisture Removal
• Included Components: Cartridge and O-Ring
• Application: Compatible Heavy-Duty Vehicle Compressed Air Systems
• Selling Quantity: 1 Cartridge Kit

Air Dryer Cartridge Installation & Safety

Before replacing the cartridge, verify the air dryer model and original replacement cartridge number.

Follow the manufacturer's procedures for safely depressurizing the compressed air system, removing the old cartridge, preparing the mounting surface, installing the replacement O-ring, and securing the new cartridge.

After installation, inspect the system for leaks and confirm proper air dryer operation.

Safety Warning: Commercial truck compressed air systems contain stored pressure. Never loosen or remove an air dryer cartridge while the system is pressurized. Follow the applicable vehicle and air dryer manufacturer's service instructions.

Professional Installation Recommended: Commercial vehicle air brake systems are safety-critical and should be maintained by qualified personnel.