| Product Line | Brakes |
| Category Name | Slack Adjusters |
| Part Type | Automatic Slack Adjusters |
| Model | Crewson Style |
| OEM Part Number | CB21103 |
| Application Type | Heavy Duty Trucks, Semi-Trucks |
| Compatible Brake Chamber Sizes | Multiple |
| Clevis Type | Straight |
| Material | Alloy Steel |
| Arm Length Position 1 | 6 in. |
| Arm Length Position 2 | 5 in. |
| Arm Offset | No Offset |
| Body Inclination Angle | 0 deg. |
| Clevis Thread Diameter | 5/8-18 UNF-2B |
| Slack Spline Count | 10 |
| Slack Spline Diameter | 1-1/2 in. |
| Auto-Check Indicator Included | No |
| Maximum Operating Temperature | 158 deg. F (70 deg. C) |
| Maximum Torque | Torque <10 or>33 ft-lb |
| Minimum Operating Temperature | (-40 deg. F) (-40 deg. C) |
| Operation Type | Tension Adjuster - Torque |
| Cross References | 11351, 1361030, BR21103, CB21103, CI21103, CS52315, E-6991B, E6991B, HSA-5032, HSA5032, MK21103S |
