Slack Adjusters
140 ProductsBrake & Wheel End Brake & Wheel End Categories (22)
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Auto Slack Adjuster 40010081 1-1/2-28 X 5-1/2" 135.2847 Auto Slack Adjuster 40010081 1-1/2-28 X 5-1/2" 135.2847. 409-10228. Same As Automann 135.2847, Haldex 400-10081, Haldex 40010081, Hendrickson R-001760, Hendrickson...
- Regular price
- $81.99
- Sale price
- $81.99
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Auto Slack Adjuster 40010140 1-1/2-28 X 5" & 6" 133.2830 Auto Slack Adjuster E-6925B 1-1/2-28 Spline, 5 & 6 Arm, Standard Drive. Same As Sirco SA10100, Midwest WA10140, KSA10140, BWP...
- Regular price
- $79.99
- Sale price
- $79.99
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Auto Slack Adjuster 40010141 1-1/2-28 X 5.5" & 6.5" 133.2831 Auto Slack Adjuster E-6927B 1-1/2-28 Spline, 5-1/2 & 6-1/2 Arm, Standard Drive. Same As Sirco SA10101, Midwest WA10141, KSA10141, BWP...
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- $79.99
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- $79.99
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Auto Slack Adjuster 40010142 1-1/2-10 X 5" & 6" 133.1030 Auto Slack Adjuster E-6923B1-1/2-10 Spline, 5 & 6 Arm, Standard Drive. Same As Sirco SA10102, BWP M-4057, Automann 133.1030, Midwest...
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- $79.99
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- $79.99
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Auto Slack Adjuster 40010143 1-1/2-10 X 5.5" & 6.5" 133.1031 Auto Slack Adjuster E-6924B 1-1/2-10 Spline, 5-1/2 & 6-1/2 Arm, Standard Drive. Same As Sirco SA10103, 409-10860, 409-10649, 409-10627. Midwest...
- Regular price
- $75.99
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- $75.99
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Auto Slack Adjuster 40010144 1-1/2-28 X 6" 133.2832 Auto Slack Adjuster E-6918A 1-1/2-28 Spline, 6" Arm, Mack Drive. Same As Sirco SA10144, Midwest WA10144, KSA10144, BWP M-4056, Automann...
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- $79.99
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- $79.99
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Auto Slack Adjuster 40010146 1-1/2-28 X 5.5" & 6.5" 135.2833 Auto Slack Adjuster 400101461-1/2-28 Spline, 5-1/2 And 6-1/2 Arm. 1/2" Hole Diameter. Same As Automann 135.2833, Haldex 40010146, Haldex 400-10146....
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- $81.99
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- $81.99
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Auto Slack Adjuster 40010155 1-1/2-10 X 5-1/2" 135.1034 Auto Slack Adjuster 400101551-1/2"-10 Spline, 5 1/2" Arm. Same As Midwest WA10155, Eaton 809610, 409-10370, Automann 135.1034, Haldex 400-10155, Haldex...
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- $81.99
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- $81.99
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Auto Slack Adjuster 40010156 1-1/2-28 X 5-1/2" 135.2834 Auto Slack Adjuster 135.28341-1/2-28 Spline. 5-1/2" Arm. Same As Automann 135.2834, Haldex 409-10094, Haldex 409-10362, Haldex 40010156, Euclid E6919A, Euclid...
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- $81.99
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- $81.99
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Auto Slack Adjuster 40010211 1-1/2-28 X 5-1/2" 133.2840 Auto Slack Adjuster E-69441-1/2-28 Spline, 5-1/2 Arm, 16-1/2 Trailer. Same As Sirco SA10211, Midwest WA10211, Net R-10211, KSA10211, BWP M-4065,...
- Regular price
- $77.99
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- $77.99
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Auto Slack Adjuster 40010212 1-1/2-28 X 6" 133.2841 Auto Slack Adjuster E-69421-1/2-28 Spline, 6 Arm, 16-1/2 Trailer. Same As Sirco SA10212, Midwest WA10212, BWP M-4066, Automann 133.2841, KSA10212,...
- Regular price
- $79.99
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- $79.99
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Auto Slack Adjuster 40010213 1-5/8-37 X 5-1/2" 135.3740 Auto Slack Adjuster E-69471-5/8-37 Spline, 5-1/2 Arm. Same As Automann 135.3740, Meritor R806020, Haldex 400-10213, Haldex 40010213, Haldex 409-10684, Haldex...
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- $81.99
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- $81.99
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Slack Adjusters Overview
The slack adjuster is the lever between the brake chamber push-rod and the S-cam; it multiplies force and, in automatic form, maintains proper shoe-to-drum clearance as linings wear. Out-of-adjustment slack adjusters are a top DOT out-of-service item. Van Horn Truck Parts carries automatic and manual slack adjusters cross-referenced to Haldex, Meritor, Bendix, and Automann part numbers.
Match the slack adjuster by spline count and diameter, arm length, and offset, and confirm automatic vs. manual.
Mechanic & Fitment Specs:
- Types: Automatic, manual
- Match by: Spline count/diameter, arm length, offset
- Cross-references: Haldex, Meritor, Bendix, Automann
- Buying tip: Automatic adjusters still need periodic inspection — don't assume set-and-forget
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