Have a Bendix air brake part number and need a replacement option? The number can narrow the search quickly, but the component family and full configuration still need to match. This guide covers Bendix numbers currently associated with GBK air dryers, purge valves, brake chambers, spring brakes, and an automatic slack adjuster.
Bendix air dryer and purge valve cross-references
| Bendix Part Number | Component | GBK Option | Important Check |
|---|---|---|---|
| 065225 / 109685 | AD-9-style air dryer | GAD065225 LAD9C-065225 |
GAD065225 is listed without a bracket; LAD9C-065225 is the bracketed assembly. Confirm ports, heater voltage, and mounting. |
| 065612 / 109477 | AD-IP-style 12V air dryer | GAD065612 | Confirm 12V heater, supply and delivery port sizes, control port, and mounting arrangement. |
| 800383 | AD-IS-style air dryer | GAD800383 | Confirm heater voltage, pressure configuration, port locations, and application. |
| 801266 / 5010696X | AD-IS-style air dryer | GAD801266 | Compare the complete port and mounting configuration, not only the dryer family. |
| 800404 | AD-IP purge valve | GPV800404 | Use only with the compatible dryer and purge-valve configuration. |
| K022105 | AD-IS / AD-IP / AD-9si purge valve | GPV022105 | Confirm the dryer model and connector configuration. |
| 800405 / 5004341 | AD-9 purge valve, 12V | GPV800405 | Confirm voltage, wattage, color coding, and valve design. |
| 109995 | AD-SP soft-seat purge valve repair kit | G109995 | Confirm the original dryer and purge-valve design before using a repair kit. |
Bendix brake chamber and slack adjuster cross-references
| Bendix Part Number | Component | GBK Option | What to Verify |
|---|---|---|---|
| 800824 | Type 20 service chamber | PAT-20 | Stroke, pushrod length, mounting studs, ports, and clevis |
| K058691 | Type 24 service chamber | PAT-24 | 2.5" standard stroke, pushrod and clevis configuration, ports, and mounting |
| 800826 / 5007121N | Type 30 service chamber | PAT-30 | Stroke, pushrod length, bolt spacing, and port orientation |
| 165255 / 802547 / K049898 | Type 30/30 regular-stroke spring brake | GT-30/30 | Stroke, rod length, clevis, caging hardware, ports, and clearance |
| NT3030ELS-WC / NT3030ELS80 | Type 30/30 long-stroke spring brake | GT-30/30L PATL-30/30 |
3" long stroke, threaded pushrod length, clevis style, and sealed construction |
| 065172 | Automatic slack adjuster | PA1133ASA | 6" arm, 10 splines, 1.5" spline diameter, mounting, and control geometry |
Repair the dryer or replace the assembly?
A purge valve or service kit may be appropriate when the dryer housing, heater circuit, ports, and mounting remain serviceable and the failure has been correctly diagnosed. A complete assembly may be more appropriate when the housing, heater, manifold, ports, or mounting are damaged or incompatible.
Do not order a repair kit solely because the dryer family name looks familiar. Confirm the complete Bendix number and the valve or heater configuration first.
What to verify before ordering
- Air dryers: dryer family, heater voltage and wattage, ports, pressure setting, purge configuration, and bracket inclusion
- Brake chambers: chamber type, stroke, pushrod, clevis, mounting pattern, and air-port position
- Slack adjusters: arm length, spline count, spline diameter, offset, mounting, and adjustment system
Search the Bendix cross-reference page, or browse air dryers, repair kits, brake chambers, and slack adjusters.
Send the complete Bendix number to GBK when the bracket, ports, pushrod, or mounting configuration is unclear.
Bendix and related marks belong to their respective owners. GBK is an independent aftermarket supplier and is not affiliated with, sponsored by, or endorsed by Bendix. Part numbers are used for identification and cross-reference purposes only.
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