| Product Line | Brakes |
| Category Name | Slack Adjusters |
| Part Type | Manual Slack Adjuster |
| OEM Part Number | 278302 |
| Application Type | Heavy Duty Trucks, Semi-Trucks |
| Clevis Type | Straight |
| Material | Alloy Steel |
| Arm Bushing Inside Diameter | 1/2 in. |
| Arm Length Position 1 | 5-1/2 in. |
| Arm Length Position 2 | 4-1/2 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 | 1-1/4 in. |
| Maximum Operating Temperature | 158 deg. F (70 deg. C) |
| Maximum Torque | 26.000 In./Lbs. |
| Minimum Operating Temperature | (-40 deg. F) (-40 deg. C) |
| Operation Type | Tension Adjuster - Torque |
| Positive Lock Feature | Yes |
| Cross References | 1341010, 278302, 5214, E-4904BK, E-4904S, E4904BK, E4904S, KN48031, M3375, R824009 |
