Automatic Slack Adjusters

Automatic slack adjusters remove the slack in the brake linkage without the need for manual adjustment.

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  1. Slack Adjuster
  1. Clevis
  1. Clevis Pins
  1. Automatic
  1. Offset
  1. Straight
  1. 10
  1. 24
  1. 28
  1. 37
  1. 1.25 inches
  1. 1.50 inches
  1. 1.62 inches
  1. 1/4 inch
  1. 5.00 inches
  1. 5.50 inches
  1. 6.00 inches
  1. 6.50 inches
  1. 1.19 inch
  1. 6.00 inches
  1. 6.50 inches
  1. Haldex
  1. Multiple Heavy Duty Manufacturers
  1. Sirco
  1. Stemco
  1. Automann
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Free Ship!
SKU CB22153
$59.95

A Crewson Brunner type automatic slack adjuster for 12-1/4 inch brake with 1.5 inch camshaft diameter, 28 spline, 5 and 6 inch arm span.   Details

20+ In Stock as of September 30, 2020 7:46 AM EST.
  • Slack Adjustor Type:Automatic
  • Slack Adjustor Arm:Offset
  • Camshaft Diameter:1.50 inches
  • Spline Teeth:28
  • Arm Span (A):5.00 inches
  • Arm Span (B):6.00 inches
  • Automann Number:136.2843
  • BWP Number:M-3492
  • Crewson Number:CB22153, CB22123, CI22123, CI22153
  • Dayton Number:05-552
  • Euclid Number:E-10949A, E-10949, E-10949B
  • Haldex Number:CS52341
  • Leland Number:L-3161, L3161
  • MPN: CB22153-I
SKU SA21102
$64.42

A Crewson Brunner type automatic slack adjuster with 1.5 inch Camshaft Diameter, 10 Spline, 5.5 inch & 6.5 inch Arm Span.   Details

7 In Stock as of September 30, 2020 7:45 AM EST.
  • Slack Adjustor Type:Automatic
  • Slack Adjustor Arm:Straight
  • Camshaft Diameter:1.50 inches
  • Spline Teeth:10
  • Arm Span (A):5.50 inches
  • Arm Span (B):6.50 inches
  • Automann Number:136.1031
  • BWP Number:M-3369
  • Crewson Number:MK21102S
  • Dayton Number:05-561
  • Euclid Number:E-6992A
  • Gaumers Number:AS1132, AS1019, AS1032
  • Haldex Number:CS52316
  • Leland Number:L3004
  • Spicer Number: 11-354, 11-506, 11-514, 11-522
  • MPN: SA21102
SKU SA24100
$64.42

A Crewson Brunner type automatic slack adjuster with 1.25 inch Camshaft Diameter, 10 Spline, 5.5 inch Arm Span.   Details

2 In Stock as of September 30, 2020 7:45 AM EST.
  • Slack Adjustor Type:Automatic
  • Slack Adjustor Arm:Straight
  • Camshaft Diameter:1.25 inches
  • Spline Teeth:10
  • Arm Span (A):5.50 inches
  • Automann Number:136.1010
  • BWP Number:M-3363
  • Crewson Number:MK24100S, CB24100, CI24100, CB24102
  • Dayton Number:05-570
  • Euclid Number:E-6987A, E-6987, E-6987B
  • Haldex Number:CS52331
  • Leland Number:L-3009, L3059, L3065
  • Spicer Number: 11-399, 11-399-100, 11-500, 11-501, 11-502
  • MPN: SA24100
Free Ship!
SKU 42710558
$13.45

ABA stud kit for Haldex type automatic slack adjusters. Services 4 slack adjusters. Kit includes 4 studs, bushings and nuts.   Details

1 In Stock as of September 30, 2020 7:45 AM EST.
  • Automann Number:135.H0558
  • Euclid Number:E427K, E-427K
  • Haldex Number:42710558,427-10558
  • Meritor Number:R810327
  • MPN: 42710558
Free Ship!
SKU CB22123
$59.95

Crewson type automatic slack adjuster with 1.5 camshaft diameter, 28 spline, 5 and 6 inch curved arm span.   Details

1 In Stock as of September 30, 2020 7:46 AM EST.
  • Slack Adjustor Type:Automatic
  • Slack Adjustor Arm:Offset
  • Camshaft Diameter:1.50 inches
  • Spline Teeth:28
  • Arm Span (A):5.00 inches
  • Arm Span (B):6.00 inches
  • Automann Number:136.2843
  • Crewson Number:CB22153
  • Dayton Number:05-552
  • Note:Product may vary from image shown
  • MPN: CB22123
Free Ship!
SKU 065170-I
$52.95

Bendex type Automatic Slack Adjuster. 1.5 inch 10 spline, 5.5 inch arm length.   Details

12 In Stock as of September 30, 2020 7:23 AM EST.
  • Slack Adjustor Type:Automatic
  • Slack Adjustor Arm:Straight
  • Camshaft Diameter:1.50 inches
  • Spline Teeth:10
  • Arm Span (A):5.50 inches
  • Bendix Number:65170, 065170, K065170
  • Dayton Number:05-461
  • Haldex Number:CS56032
  • MPN: 065170
Free Ship!
SKU 065174-I
$52.95

Bendex type Automatic Slack Adjuster. 1.5 inch 28 spline, 5.5 inch arm length.   Details

20+ In Stock as of September 30, 2020 7:23 AM EST.
  • Slack Adjustor Type:Automatic
  • Slack Adjustor Arm:Straight
  • Camshaft Diameter:1.50 inches
  • Spline Teeth:28
  • Arm Span (A):5.50 inches
  • Automann Number:137.2810
  • Bendix Number:65174, 065174, K065174
  • Dayton Number:05-463
  • Haldex Number:CS56040
  • MPN: 065174
Free Ship!
SKU 065175-I
$59.95

Bendex type Automatic Slack Adjuster. 1.5 inch 28 spline, 5.5 inch arm length.   Details

20+ In Stock as of September 30, 2020 7:23 AM EST.
  • Slack Adjustor Type:Automatic
  • Slack Adjustor Arm:Straight
  • Camshaft Diameter:1.50 inches
  • Spline Teeth:28
  • Arm Span (A):6.00 inches
  • Automann Number:137.2830
  • Bendix Number:65175, 065175, 65176
  • Dayton Number:05-462
  • Haldex Number:CS56041
  • MPN: 065175
SKU 19X127
$0.99

Slack Adjuster Clevis Pin R810019, 1/4 inch diameter x 1.19 inches long with cotter key. Replaces Meritor 19X70.   Details

20+ In Stock as of September 30, 2020 7:46 AM EST.
  • Diameter:1/4 inch
  • Length:1.19 inch
  • Automann Number:179.CP14
  • Dayton Number:05-583
  • Meritor Number:19X127, R801730, 19X70
  • MPN: 19X127
Free Ship!
SKU 40010004
$99.00

Haldex Automatic Slack Adjuster. 1.25 inch 24 spline, 5.5 inch arm length, 5/8 inch arm hole diameter. Compatible with all major brand clevises.   Details

2 In Stock as of September 30, 2020 7:45 AM EST.
  • Slack Adjustor Type:Automatic
  • Slack Adjustor Arm:Straight
  • Camshaft Diameter:1.25 inches
  • Spline Teeth:24
  • Arm Span (A):5.50 inches
  • Manufacturers Part Number:409-10659
  • MPN: 409-10659
Free Ship!
SKU 40010008
$99.00

Haldex Automatic Slack Adjuster. 1.5 inch 28 spline, 5.5 inch arm length, 5/8 inch arm hole diameter. Compatible with all major brand clevises.   Details

4 In Stock as of September 30, 2020 7:46 AM EST.
  • Slack Adjustor Type:Automatic
  • Slack Adjustor Arm:Straight
  • Camshaft Diameter:1.50 inches
  • Spline Teeth:28
  • Arm Span (A):5.50 inches
  • Automann Number:135.2810
  • Eaton Number:815821
  • Meritor Number:R806012, R806025
  • Midland Number:40010008
  • Manufacturers Part Number:409-10663
  • MPN: 409-10663
Free Ship!
SKU 40010009
$105.00

Haldex Automatic Slack Adjuster. 1.5 inch 28 spline, 5.5 inch arm length, 1/2 inch arm hole diameter. 22.5° body angle, 1.5 inch Right Hand offset.   Details

1 In Stock as of September 30, 2020 7:46 AM EST.
  • Slack Adjustor Type:Automatic
  • Slack Adjustor Arm:Offset
  • Camshaft Diameter:1.50 inches
  • Spline Teeth:28
  • Arm Span (A):5.50 inches
  • Automann Number:135.2815
  • Mack Number:25QD338P6
  • Meritor Number:R806500
  • Midland Number:40010009
  • Manufacturers Part Number:409-10165
  • MPN: 409-10165

Automatic Brake Adjusters

An automatic slack adjuster (also called a brake adjuster) is a mechanical component in the air brake system. This component adjusts the brakes automatically, as needed, while the vehicle is in operation. These adjustments are necessary to compensate for the wear in the brake shoes that is caused by the normal operation of the braking system.

According to Federal Motor Vehicle Safety Standard No. 121, if a vehicle is equipped with an air brake system was manufactured after October 20, 1994 it must be equipped with an automatic slack adjuster. Vehicles manufactured before this date may use a manual slack adjuster.

Automatic Slack Adjuster

According to this notice, issued by the National Institute for Occupational Safety and Health: Manually adjusting an automatic slack adjuster can contribute to the unexpected failure of the braking system.



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