Slack Adjusters
OEM quality manual and automatic slack adjusters for commercial trucks and trailer braking systems.
Found 112 Matching Products
Filter the list of Matching Products by selecting any of these options:
SKU CP138
$5.95
Greasable clevis pin CP138, 1/2 inch diameter x 1-3/8 inches long with cotter key. Details
20+ In Stock
- Diameter:1/2 inch
- Length:1-3/8 inch
- MPN: CP138
SKU R802463-I
$67.14
Meritor Type Automatic Slack Adjuster for use on disc brakes with a type 30 brake chamber. 1. Details
20+ In Stock
- Slack Adjustor Type:Automatic
- Slack Adjustor Arm:Straight
- Camshaft Diameter:1.50 inches
- Spline Teeth:28
- Arm Span (A):5.50 inches
- Automann Number:139.2835
- Meritor Number:A443275Z1144, A44-3275-Z-1144, R802463, R803050
- Cross References:E11420, 05563, TDAR802463, NAADB, CS56040, 1694309C91, ATIR802463, A293275U593, A433275Z1144S, A573275U593S, A703275Z1144S, R802460, 764015073, TDAR802463, R802463
- MPN: R802463-I
SKU R801700-I
$12.95
Automatic slack adjuster guide pawl kit for All Meritor ASAs. Details
20+ In Stock
- Automann Number:139.1700
- Euclid Number:E11432
- Meritor Number:R801700
- MPN: R801700-I
SKU AS1141-I
$65.75
Gunite type automatic slack adjuster with 1.5 inch camshaft diameter, 28 spline, 6.0 inch arm span. Details
20+ In Stock
- Slack Adjustor Type:Automatic
- Slack Adjustor Arm:Straight
- Camshaft Diameter:1.50 inches
- Spline Teeth:28
- Arm Span (A):6.00 inches
- Automann Number:138.2830
- Dayton Number:05-762
- Gunite Number:AS1041, AS1141, SA10203
- Mack Number:25QD51P3
- Midland Number:CS56041
- Volvo Number:8084132
- MPN: AS1141
SKU CB22103-I
$67.11
Crewson type automatic slack adjuster with 1. Details
1 In Stock
- Slack Adjustor Type:Automatic
- Slack Adjustor Arm:Straight
- Camshaft Diameter:1.50 inches
- Spline Teeth:28
- Arm Span (A):5.00 inches
- Arm Span (B):6.00 inches
- Automann Number:136.2830
- Bendix Number:65176
- BWP Number:M-3368
- Crewson Number:CB22103, MK22103S, CB22106, CI22103, CI22106, CS56004
- Dayton Number:05-562
- Euclid Number:E-6993A, E-6993, E-6993B
- Haldex Number:CS52321
- International Number:1681286C91
- Leland Number:L3005
- Mack Number:25QD354
- Meritor Number:R803055
- Spicer Number: 11-355, 11-511, 11-515, 11-519
- Note:Product may vary from image shown
- MPN: CB22103
SKU CB22153
$67.14
A Crewson Brunner type automatic slack adjuster for 12-1/4 inch brake with 1. Details
Typically ships in 7 to 10 business days.
- 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 CP134
$5.95
Greasable clevis pin CP134, 1/2 inch diameter x 1-3/4 inches long with cotter key. Details
20+ In Stock
- Diameter:1/2 inch
- Length:1-3/4 inch
- MPN: CP134
SKU CPS114
$5.95
Greasable clevis pin CPS114, 1/4 inch diameter x 1-1/4 inches long with cotter key. Details
20+ In Stock
- Diameter:1/4 inch
- Length:1-1/4 inch
- MPN: CPS114
SKU CB22102-I
$67.14
Crewson type automatic slack adjuster CB22102 with 1.5 camshaft diameter, 28 spline, 5.5 and 6. Details
18 In Stock
- Slack Adjustor Type:Automatic
- Slack Adjustor Arm:Straight
- Camshaft Diameter:1.50 inches
- Spline Teeth:28
- Arm Span (A):5.50 inches
- Arm Span (B):6.50 inches
- Automann Number:136.2831
- Bendix Number:65247
- BWP Number:M-3370
- Crewson Number:MK22102S, CB22102, CI22102
- Dayton Number:05-563
- Euclid Number:E-6994A, E-11403, E-6994, E-6994B
- Ford Number:4C4Z2041DA
- Haldex Number:CS52320
- Leland Number:L3006
- Mack Number:25QD261P2
- Meritor Number:A413275Z1144, R801070, R802462
- Spicer Number: 11-368, 11-507, 11-508, 11-512, 11-517, 11-520
- MPN: CB22102
SKU R803054-I
$67.95
Meritor type automatic slack adjuster R803054. Type A, 1.5 inch 28 spline, 6.0 inch arm length. Details
20+ In Stock
- Slack Adjustor Type:Automatic
- Slack Adjustor Arm:Straight
- Camshaft Diameter:1.50 inches
- Spline Teeth:28
- Arm Span (A):6.00 inches
- Automann Number:139.2836
- Dayton Number:05-3622
- Euclid Number:E11421, E-11421, E11421A
- Meritor Number:A143275B1146, R802486, R803054
- MPN: R803054
SKU 05-250
$41.65
Curved arm manual slack adjuster. 1.5 inch camshaft diameter 10 spline, 6 inch curved arm span. Details
4 In Stock
- Slack Adjustor Type:Manual
- Slack Adjustor Arm:Offset
- Camshaft Diameter:1.50 inches
- Spline Teeth:10
- Arm Span (A):6.00 inches
- Automann Number:134.1042
- Bendix Number:278084, 291223
- BWP Number:M-475
- Crewson Number:CA1296
- Dayton Number:05-250
- Eaton Number:R2138
- Euclid Number:E-2091
- Haldex Number:1010706, N2943
- Leland Number:L1275
- Midland Number:KN51000
- Spicer Number: M12WR101, 10-353
- MPN: 05-250
SKU 136.2843
$77.36
Crewson Type automatic slack adjuster 136.2843. 1.5 inch-28, 5 and 6 inch arm length, curved. Details
Typically ships in 7 to 10 business days.
- Application:Dana/Spicer
- Application:Dexter
- Application:Meritor
- Slack Adjustor Type:Automatic
- Camshaft Diameter:1.50 inches
- Spline Teeth:28
- Arm Span (A):5-6 inches
- Automann Number:136.2843
- BWP Number:M-3492
- Crewson Number:CB22153, CB22123, CI22123, CI22153
- Dayton Number:05-552
- Dexter Number:055-040-09, 055-040-99
- Euclid Number:E10949A, E10949B, E-10949A, E-10949, E-10949B
- Haldex Number:CS52341
- Leland Number:L3161
- Sirco Number:SA22953
- Stemco Number:MK22153S
- UPC: 889626014796
- MPN: 136.2843
 | Loading… |
Brake Adjusters
Slack adjusters (also called brake adjusters or just "slacks") regulate the distance that the air brake has to travel to apply friction to the wheel. This distance increases as use of the brake causes the friction material of the brake shoe to wear away. When the brake is used, the operating rod pushes out on the slack adjuster which then turns the S-cam. The S-cam pushes the brake shoes apart which applies friction and slows the vehicle. Without this function, the air brake can become out of adjustment and the vehicle may lose its capability to slow or stop consistently.
When you need to replace your slack adjusters, it is very important to find the correct part that matches your equipment to ensure a safely operating braking system. It's easy to find the correct replacement slack adjusters for your truck, tractor or trailer. First, the type of slack adjuster should be considered. Slack adjusters are available in two types: manual slack adjusters and automatic slack adjusters.
Manual slack adjusters compensate for the distance in the brake linkage by adjustments made with a wrench.
Automatic slack adjusters remove the slack in the brake linkage without the need for manual adjustment.
Both manual and automatic slack adjusters have three qualifications which can be easily measured. Finding these three measurements is the key to finding the correct slack adjusters.
How to Measure and Identify a Slack Adjuster
Spline Teeth
The spline teeth of a slack adjuster fit into the spline teeth of the camshaft. Therefore, the slack adjuster and camshaft must have the same amount of teeth. An easy way to determine the number of teeth is to simply count them.
Camshaft Diameter
The camshaft diameter is size of the camshaft that fits your particular slack adjuster. This can be found by measuring the inside of the socket or the width of the camshaft.
Arm Span
The arm span of a slack adjuster is the distance between the center of the camshaft and the center of the pin hole that is used with the clevis. Many slack adjusters feature multiple pin holes. These slacks can be used at any of the lengths available. For example, a slack adjuster with an arm span of 5.0 and 6.0 inch can be used in applications where a 5 inch or 6 inch arm span is needed.
