An air dryer problem does not automatically require a complete assembly, but it also should not be reduced to “install a kit and see what happens.” First identify the dryer family, part number, symptom, heater voltage, ports, mounting, purge configuration, and condition of the housing and manifold.
Common complete air dryer cross-references
| Common Reference Numbers | Dryer Family | GBK Option | Configuration to Verify |
|---|---|---|---|
| Bendix 065225 / 109685 Mack 26QE377 Meritor R955065225 Automann 170.065225 |
AD-9 style | LAD9-065225 | 12V heater, complete bracketed assembly, ports, purge design, and mounting dimensions |
| Bendix 065225 / 109685 Meritor R955065225 |
AD-9 style | GAD065225$105.00 | 12V, 2-port configuration, no bracket; confirm the original bracket can be reused |
| Bendix 065612 / 109477 Automann 170.065612 |
AD-IP style | GAD065612 | 12V-90W heater, supply and delivery ports, control port, and mounting |
| Bendix 800383 Automann 170.800383 |
AD-IS style | GAD800383 | 12V-90W heater, pressure configuration, supply, primary and secondary ports |
| Bendix 801266 / 5010696X Automann 170.801266 |
AD-IS style | GAD801266 | 12V-90W heater, pressure setting, ports, electrical connection, and mounting |
| Meritor/WABCO R955300 Automann 170.955300 |
SS1200P style | GAD955300 | 12V-75W heater, supply, delivery, control and purge-tank ports, pressure and mounting |
| Meritor/WABCO R955205 Automann 170.955205 |
SS1200 style | GAD955205 | 12V-75W heater, supply, delivery, control and purge-tank ports, pressure and mounting |
Common purge valve and repair-kit cross-references
| Common Reference Numbers | Service Component | GBK Option | Use Only After Confirming |
|---|---|---|---|
| Bendix 800404 Automann 170.800404 |
AD-IP purge valve | GPV800404$15.20 | Compatible AD-IP dryer and purge-valve configuration |
| Bendix 800405 / 5004341 | AD-9 purge valve, 12V-75W | GPV800405 | Voltage, wattage, connector or color coding, and valve design |
| Bendix K022105 Automann 170.K022105 |
AD-IS / AD-IP / AD-9si purge valve | GPV022105 | Exact dryer model and connector or valve configuration |
| Bendix 109995 Meritor R955300 / R955205 Automann 170.109995 |
AD-SP soft-seat purge valve repair kit | G109995$9.90 | Original dryer application and soft-seat purge-valve design |
When a service component may be appropriate
A purge valve or repair kit may be appropriate when the failure has been isolated to that serviceable component and the dryer housing, manifold, ports, mounting, electrical system, and related air-system components remain in serviceable condition.
Before installing a kit, confirm the complete dryer number and determine whether the symptom is actually caused by the purge valve, heater, cartridge, governor signal, compressor discharge condition, plumbing, or another part of the air system.
When a complete assembly may be the better choice
- Cracked, damaged, or heavily corroded housing or manifold
- Damaged ports, threads, brackets, or mounting surfaces
- Multiple failures across the heater, purge system, valves, or internal components
- Repeated contamination or repeat failure after correct service
- Incorrect or unverified dryer family, voltage, pressure, or port configuration
- A no-bracket unit cannot safely reuse the original mounting hardware
- Labor and downtime make a complete verified assembly more practical than multiple repairs
Bracketed and no-bracket AD-9 assemblies
The LAD9-065225 is listed as a complete AD-9-style assembly with a bracket. The GAD065225 is listed without a bracket. They should not be described as identical packages. A no-bracket dryer is appropriate only when the existing bracket, mounting arrangement, ports, voltage, and dimensions are confirmed for reuse.
What to record before ordering
- Complete dryer and service-component numbers
- Dryer family and vehicle application
- Heater voltage and wattage
- Supply, delivery, control, primary, secondary, and purge-tank port sizes and locations
- Bracket and mounting configuration
- Purge-valve and electrical-connector design
- Symptoms, air-system pressure behavior, leakage points, and contamination evidence
Browse GBK air dryers and repair kits, or search the Bendix, Meritor, and Automann cross-reference pages.
Send GBK the dryer number, vehicle information, port photos, voltage, and symptoms when the correct repair or assembly cannot be confirmed.
Cross-reference numbers identify possible replacement or service options. Diagnose the air system and verify the complete dryer family, voltage, wattage, pressure, ports, bracket, electrical connection, purge design, and vehicle application before installation.
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