Best in class Slack Adjusters | Automatic & Manual

Slack Adjusters

Slack adjusters maintain proper brake shoe-to-drum clearance in air brake systems, ensuring consistent performance and reducing wear. Fleet Products stocks a full range of automatic and manual slack adjusters for steering and trailer axles, compatible with Meritor, Haldex, Bendix, and Gunite systems. Available in multiple spline sizes, arm lengths, and configurations, our OEM and aftermarket options are engineered for long life, proper brake stroke, and drum brake efficiency. Choose Fleet Products to keep your fleet stopping safely and within regulation.

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Slack Adjusters

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Trailer Accessories

Slack Adjusters

FP1141 | Auto Slack Adjuster | 28 Spline, 1.5" | 6" (Drive Axle) AS1141/AS1151, E-15025

FP1140 | Auto Slack Adjuster | 28 Spline, 1.5" | 5.5" (Drive Axle) AS1140/AS1149, E-15024

FP400-10212 | Auto Slack Adjuster | 28 Spline, 1.5" | 6" (E-6942)

FP1136 | Auto Slack Adjuster | 10 Spline, 1.25" | 5.5" (Steer Axle) AS1136/AS1152, E-15020

FP400-10211 | Auto Slack Adjuster | 28 Spline, 1.5" | 5.5" (E-6944) 40910683

FP400-10142 | Auto Slack Adjuster | 10 Spline, 1.5" | 5", 6" (E-6923B)

FP810019 | Clevis Assembly (5/8" Thread) R810019/R810009

FP801073 | Auto Slack Adjuster | 28 Spline, 1.5" | 5.5" (Drive Axle) E-11401

FP3000 | Clevis Assembly (5/8" Thread) AS3000

FP1133 | Auto Slack Adjuster | 10 Spline, 1.5" | 6" (Drive Axle) AS1133/AS1147, E-15017

FP1132 | Auto Slack Adjuster | 10 Spline, 1.5" | 5.5" (Drive Axle) AS1132/AS1146, E-15016

FP400-10216 | Auto Slack Adjuster | 10 Spline, 1.5" | 6" (E-6936)

FP400-10144 | Auto Slack Adjuster | 28 Spline, 1.5" | 6" (E-6918A)

FP400-10143 | Auto Slack Adjuster | 10 Spline, 1.5" | 5.5", 6.5" (E-6924B)

FP400-10141 | Auto Slack Adjuster | 28 Spline, 1.5" | 5.5", 6.5" (E-6927B)

FP400-10140 | Auto Slack Adjuster | 28 Spline, 1.5" | 5", 6" (E-6925B)

FP47001 | Manual Slack Adjuster | 10 Spline | 5", 6", 7" (E612HD) 278323

FP400-10215 | Auto Slack Adjuster | 10 Spline, 1.5" | 5.5" (E-6940)

FP400-10155 | Auto Slack Adjuster | 10 Spline, 1.5" | 5.5" (E-10892, K044332)

FP801074 | Auto Slack Adjuster | 28 Spline, 1.5" | 6" (Drive Axle) E-11402

Slack Adjusters

Automatic Slack Adjusters

Manual Slack Adjusters