Slack Adjusters
140 ProductsBrake & Wheel End Brake & Wheel End Categories (22)
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Auto Slack Adjuster 40010214 1-5/8-37 X 6" 133.3741 Auto Slack Adjuster E-69461-5/8-37 Spline, 6 Arm, 16-1/2 Fruehauf Trailer. Same As Sirco SA10214, BWP M-4067, Automann 133.3741, Midwest WA10214,...
- Regular price
- $79.99
- Sale price
- $79.99
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Auto Slack Adjuster 40010215 1-1/2-10 X 5-1/2" 133.1040 Auto Slack Adjuster E-69401-1/2-10 Spline, 5-1/2 Arm, 16-1/2 Trailer. Same As Sirco SA10215, BWP M-4063, Automann 133.1040, Euclid E-6940, Meritor...
- Regular price
- $79.99
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- $79.99
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Auto Slack Adjuster 40010216 1-1/2-10 X 6" 133.1041 Auto Slack Adjuster E-69361-1/2-10 Spline, 6 Arm, 16-1/2 Trailer. Same As Sirco SA10216, Midwest WA10216, KSA10216, BWP M-4064, Automann 133.1041,...
- Regular price
- $79.99
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- $79.99
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Auto Slack Adjuster 40010225 1-1/2-10 X 6" 135.1049 Auto Slack Adjuster 135.1049Same As Automann 135.1049, Haldes 400-10225, Haldex 40010225, Haldex 409-10376, Haldex 40910376.
- Regular price
- $81.99
- Sale price
- $81.99
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Auto Slack Adjuster 40010304 1-1/2-28 X 5-1/2" 135.2844 Auto Slack Adjuster 135.28441-1/2-28 Spline. 5-1/2 Arm. Same As Automann 135.2844, Haldex 400-10304, Haldex 40010304, Haled 409-10654, Haldex 40910654, Euclid...
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- $77.99
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- $77.99
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Auto Slack Adjuster 40010305 1-1/2-28 X 6" 133.2842 Auto Slack Adjuster E-6933 1-1/2-28 Spline, 6 Arm, 12-1/4 Trailer Axle. Same As Sirco SA10305, BWP M-4062, Automann 133.2842, Euclid...
- Regular price
- $79.99
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- $79.99
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Auto Slack Adjuster 40010306 1-1/2-10 X 6" 133.1042 Auto Slack Adjuster E-69281-1/2-10 Spline, 6 Arm, 12-1/4 Trailer Axle. Same As Sirco SA10306, BWP M-4061, Automann 133.1042, Euclid E-6928,...
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- $79.99
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- $79.99
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Auto Slack Adjuster 40010307 1-5/8-37 X 6" 135.3742 Auto Slack Adjuster 40010307 1-5/8-37 X 6" 135.3742. Same As Automann 135.3742, Haldex 409-10657, Haldex 40910657, Haldex 400-10307, Haldex 40010307,...
- Regular price
- $81.99
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- $81.99
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Auto Slack Adjuster 40010402 1-1/2-28 X 5-1/2" 135.2811 Auto Slack Adjuster 135.2811Same As Automann 135.2811, Haldex 409-10584, Haldex 409-10309, Haldex 40010402, Eaton 808376, Euclid E6951A, Euclid E-6951A, Leland...
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- $81.99
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- $81.99
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Auto Slack Adjuster 40020211 1-1/2-28 X 5-1/2" 135.S2840 S-ABA Slack Adjuster 135.S2840 1-1/2-28 Spline, 5-1/2" Arm. Same As Automann 135.S2840, Haldex 40020211, Haldex 400-20211, Haldex 409-20002, Haldex 40920002,...
- Regular price
- $128.99
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- $128.99
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Auto Slack Adjuster 40020212 1-1/2-28 X 6" 135.S2841 S-ABA Slack Adjuster 135.S2841 1-1/2-28 Spline, 6" Arm. Same As Automann 135.S2841, Haldex 40020212, Haldex 400-20212, Haldex 409-20006, Haldex 40920006,...
- Regular price
- $128.99
- Sale price
- $128.99
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Auto Slack Adjuster 40020213 1-5/8-37 X 5-1/2" 135.S3740 1-5/8-37 X 5-1/2. Same As 409-26024, 40926024, Automann 135.S3740, Haldex 400-20213, Haldex 40020213, Haldex 409-20024, Haldex 40920024, Euclid E-11923, Euclid...
- Regular price
- $122.99
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- $122.99
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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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