Have an Automann part number and need a compatible replacement? This guide covers common Automann numbers that cross-reference to products currently listed in the GBK catalog, including brake chambers, air dryers, purge valves, brake drums, hub assemblies, repair kits, and brake shoes.
A cross-reference number is a starting point, not a fitment guarantee. Before ordering, compare the complete product type, dimensions, mounting pattern, ports, stroke, pushrod, clevis, hardware, voltage, and intended vehicle or trailer application.
Automann brake chamber cross references
| Automann Part Number | Part Type | GBK Replacement Option | Important Fitment Check |
|---|---|---|---|
| 179.SC20 | Type 20 service brake chamber | GBK PAT-20 | Confirm 2.25-inch stroke, pushrod length, 4.75-inch mounting-stud spacing, clevis, and 3/8-inch NPT port position. |
| 179.SC30 | Type 30 standard-stroke service brake chamber | GBK PAT-30 | Confirm pushrod length before installation. Public Automann listings commonly show an 8.25-inch rod, while the GBK catalog lists 8.5 inches. |
| 179.SB3030S | Type 30/30 sealed, regular-stroke spring brake chamber | GBK GT-30/30 | Confirm 2.5-inch stroke, port layout, clevis, and installed pushrod length. The GBK 13-inch threaded rod is designed for measured cut-to-length installation. |
| 179.SB3030SL | Type 30/30 sealed, long-stroke spring brake chamber | GBK GT-30/30L GBK PATL-30/30 |
Confirm 3-inch stroke, square-port configuration, clevis style, and pushrod length. The GBK 13-inch threaded rod may require cutting to the correct installed length. |
PAT-24 configuration notice: The previous GBK data listed Automann 170.K058691, which has been removed because it is not a valid confirmed Automann brake-chamber reference. Public listings for the Bendix K058691 and MGM 1427901 family commonly point to Automann 179.M1427901 or 179.SC24XLW225, but those configurations are often shown with a welded clevis or yoke. The GBK PAT-24 uses a threaded pushrod and detachable clevis, so it should not be presented as a confirmed Automann replacement until the complete factory drawing is verified.
Automann air dryer and purge valve cross references
| Automann Part Number | GBK SKU | Product Type | Reference Notes |
|---|---|---|---|
| 170.065225 | LAD9C-065225 | AD-9-style air dryer assembly, 12V, with bracket | Compare bracket, heater voltage, port configuration, purge valve, and mounting dimensions. |
| 170.065612 | GAD065612 | AD-IP-style air dryer, 12V | Cross-reference family includes Bendix 065612 and 109477. Do not substitute the 24V 065613/109478 family. |
| 170.800383 | GAD800383 | AD-IS-style air dryer | Confirm heater voltage, governor setting, supply port, primary port, and secondary port configuration. |
| 170.801266 | GAD801266 | AD-IS / AD-9si-style air dryer | Also cross-references Bendix 801266 and 5010696X; verify the complete port and mounting arrangement. |
| 170.955300 | GAD955300 | WABCO/Meritor SS1200P-style air dryer | Cross-reference to Meritor/WABCO R955300. Verify purge-tank port configuration and heater specification. |
| 170.955205 | GAD955205 | WABCO/Meritor SS1200-style air dryer | Cross-reference to Meritor/WABCO R955205. This is not a Bendix AD-SP dryer. |
| 170.800404 | GPV800404 | AD-IP purge valve kit | Cross-reference to Bendix 800404. Verify early-style purge-valve configuration. |
| 170.K022105 | GPV022105 | AD-IS / AD-IP / AD-9si purge valve kit | Cross-reference to Bendix K022105. Do not confuse it with the separate 800404 kit. |
| 170.109995 | G109995 | AD-SP soft-seat purge valve repair kit | Cross-reference to Bendix 109995. Confirm the dryer is an AD-SP before ordering. |
No-bracket AD-9 warning: GBK GAD065225 is a no-bracket air dryer and should not be described as the same complete assembly as Automann 170.065225. It may be a suitable replacement option only when the existing bracket can be reused and all ports, voltage, purge-valve configuration, and mounting dimensions match.
Automann brake drum, hub, and repair kit cross references
| Automann Part Number | GBK SKU | Related Industry Numbers | What to Verify |
|---|---|---|---|
| 151.6726BA | GD3000 | 3922X, 56864B | 16.5 x 7-inch brake size, pilot, bolt circle, holes, offset, and weight class. |
| 151.68607 | GD3052 | 3807X, 66809 | 16.5 x 8.6-inch brake size, pilot, bolt pattern, offset, and axle application. |
| 151.6704 | GD3027 | 2983C, 67518F | 16.5 x 7-inch brake size, pilot, bolt circle, offset, and 105-pound class. |
| 151.5504BA | GD3057 | 3774X, 65154B | 15 x 5-inch brake size, front-axle application, pilot, bolt pattern, and offset. |
| 151.6700BA | BD3001 | 3600AX, 66864B | 16.5 x 7-inch dimensions, pilot, bolt circle, holes, and weight class. |
| 151.6602BA | BD3012 | 3687X, 65152B | 16.5 x 6-inch dimensions, pilot, bolt circle, holes, and offset. |
| 151.6714BA | BD3059 | 3757X, 66353B | 16.5 x 7-inch dimensions, pilot, bolt pattern, offset, and 114-pound class. |
| 151.5403BA | BD3053 | 3800X, 65548B | 15 x 4-inch dimensions, pilot, bolt circle, offset, and axle application. |
| 151.6722 | BD3034 | 3295A, 68981B | 16.5 x 7-inch dimensions, pilot, bolt circle, offset, and weight class. |
| 150.T1201.S2 | HUBL23231-3T | Webb 23231-3T, Gunite HT799RC | Stud count, 11.25-inch bolt circle, bearing set, seal, ABS tone ring, and outboard drum mount. |
| 100.4709.11 | PA10244 | Meritor R507064, Euclid E4709ES2N | 4709 brake family, shoe design, spring and pin contents, and axle application. |
Automann brake shoe cross references
Brake shoes should be matched by FMSI geometry, brake size, lining rating, shoe style, and included hardware. The following GBK 23K shoe kits now include verified Automann references in the catalog data.
| GBK SKU | FMSI / Shoe Family | Automann Part Number | Key Check |
|---|---|---|---|
| B-1308Q | 1308Q, 15 x 4-inch, 23K | 148.1308Q.23 | Steer-axle Q shoe geometry, lining rating, and hardware. |
| B-4515Q23K | 4515Q, 23K | 148.4515Q.23 | Brake size, Q shoe geometry, lining rating, and hardware. |
| B-4702Q23K | 4702Q, 23K | 148.4702Q.23 | Q shoe geometry, axle application, lining rating, and hardware. |
| B-4707Q23K | 4707Q, 23K | 148.4707Q.23 | Q Plus geometry, brake size, lining rating, and hardware. |
| B-4709ESII23K | 4709ES / ESII, 23K | 148.4709E.23 | Extended-service geometry, anchor-end design, lining rating, and hardware. |
| B-4710-23K | 4710Q, 23K | 148.4710Q.23 | Brake dimensions, Q shoe geometry, lining rating, and hardware. |
| B-4711-23K | 4711Q, 23K | 148.4711Q.23 | Brake dimensions, Q shoe geometry, lining rating, and hardware. |
| B-4719-23K | 4719ES, 23K | 148.4719E.23 | Extended-service geometry, brake size, lining rating, and hardware. |
| B-4720-23K | 4720Q, 23K | 148.4720Q.23 | Q shoe geometry, brake size, lining rating, and hardware. |
| B-4725-23K | 4725ES, 23K | 148.4725E.23 | Extended-service geometry, lining rating, axle application, and hardware. |
| B-4726-23K | 4726ES, 23K | 148.4726E.23 | Extended-service geometry, lining rating, axle application, and hardware. |
How to verify an Automann replacement
- Search the complete number. Keep periods, letters, and suffixes because they may identify stroke, style, voltage, or lining rating.
- Confirm the product family. Make sure a service chamber is not being confused with a spring brake, or a Bendix dryer family with a WABCO/Meritor dryer family.
- Compare every critical specification. Check physical dimensions, ports, mounting, voltage, stroke, pushrod, clevis, pilot, bolt circle, bearing set, or FMSI geometry as applicable.
- Review what is included. A complete assembly may include a bracket, clevis, hardware, purge valve, bearing cups, or repair components that a base replacement does not include.
- Confirm the application. Use the truck, trailer, axle, brake, or dryer model information before installation.
Browse the Automann cross-reference page, brake chambers, air dryers, brake drums, and brake shoes to compare available GBK options.
Need help matching a parts list?
Send the complete Automann numbers, photos of the original labels, vehicle or trailer information, and the relevant measurements. The GBK parts team can review the cross-reference, check availability, and help with fleet or distributor quantities.
Contact a GBK parts specialist or request fleet and wholesale pricing.
Automann and related marks are the property of their respective owners. GBK is an independent aftermarket supplier and is not affiliated with, sponsored by, or endorsed by Automann. Manufacturer names and part numbers are used for identification and cross-reference purposes only. Buyers and installers must verify product specifications and application before installation.
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