Slack Adjusters
OEM quality manual and automatic slack adjusters for commercial trucks and trailer braking systems.
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SKU 40010140
$140.42
Haldex Automatic Slack Adjuster. 1. Details
Typically ships in 5 to 7 business days.
- 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
- AutoCar Number:40010140, 40010140-MD
- Automann Number:133.2830, 1352830
- Bendix Number:K041877, K095826
- Blue Bird Number:0034286, 8316721
- Dana Number:10-400-10140
- Dayton Number:05-655
- Eaton Number:313577, 506272, 808129, 808132, 808142, 808166, 808179, 808685, 808746, 809614, 810601, 810603, 815787, 815806, 815828, 815829, 818223, 818991, 819675, 825703
- Euclid Number:E-6925, E-6925A, E-6925B
- Freightliner Number:BW K041877, GUN AS1139, GUN AS1141, HDX 40010140, HDX CS52343, SAB 400 10140, STM MK22103S, TDA M807024
- Great Dane Number:ACCAS1141, BNDK041877, GUNAS-1141
- Haldex Number:40010142, 409-10093, 409-10125, 409-10149, 409-10178, 409-10225, 409-10241, 409-10314, 409-10343, 409-10360, 409-10404, 409-10405, 409-10426, 409-10428, 409-10457, 509-10404, 509-10742, CS52343, CS56039
- Mack Number:25QD 410, 25QD259P2, 25QD259P4, 25QD260M, 25QD260M5, 25QD410P5, 5396-40010140, 5396-40910615, 7883-40010140, MID40010140
- Meritor Number:R806023, 40010140, A13275E1279, A19-3275-S-1059, A20-3275-S-1059, A3275S1059, A44-3275-S-1059, A453275S1059, M807024, R806024
- Midwest Number:WA10140, BW K041877, GH AS1139, GH AS1141, MD 40010140
- Navistar Number:1666360C91, A3275S1059, BXK041877, HAL40010140, M807024, ZBRAS1139, ZBRAS1141, ZSA40010140, ZZ40010140
- Paccar Number:40010140M1D, 40910093, 40910178, 40910552, A443275S1059, AS1139, AS1141, K041877BXW, K095826BXW, MK22103S
- Peterbilt Number:40010140M1D
- Spicer Number: 10-400-10140
- Stemco Number:MK22103S, MK22103S G, MK42106S H
- Sterling Truck Number:HDX 40010140
- Volvo Number:3946256, HAE40010140, MID40010140
- Manufacturers Part Number:409-10742
- MPN: 409-10742
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:0.500 inch
- Length:1-3/4 inch
- MPN: CP134
SKU CP138
$5.95
Greasable clevis pin CP138, 1/2 inch diameter x 1-3/8 inches long with cotter key. Details
Typically ships in 7 to 10 business days.
- Diameter:0.500 inch
- Length:1-3/8 inch
- MPN: CP138
SKU 40020212-I
$69.23
Haldex type self-securing automatic slack adjuster with 1.5 inch Camshaft Diameter, 28 Spline, 6. Details
5 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:135.S2841
- Batco Number:05-464
- Bendix Number:K041877
- Euclid Number:E11922
- Freightliner Number:BW K041877, HDX 40010212, HDX 40020212
- Great Dane Number:400-20212, 400-20212, BNDK041877, HAL400-20212, HAL40010212
- Haldex Number:40920006, 40020212, 400-20212, 409-20006
- International Number:ZZ40020212
- Mack Number:539640020212, 5396-40020212, MID40020212
- Meritor Number:M808013
- Midwest Number:BW K041877, MD 40010212, MD 40020212
- Navistar Number:BXK041877, HAL40010212, M808013, ZZ40010212, ZZ40020212
- Paccar Number:40010212M1D, 40020212, 40020212M1D, K041877BXW, M808013
- Peterbilt Number:40020212
- Sterling Truck Number:HDX 40020212
- Volvo Number:MID40020212
- MPN: 40020212-I
SKU 40010143-I
$73.33
Haldex Type Automatic Slack Adjuster. 1.5 inch 10 spline, 5.5 and 6. Details
3 In Stock
- 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
- AutoCar Number:40010143, 40010143-MD
- Automann Number:135.1031, 133.1031, 135.1045
- Bendix Number:973530, 975628N, K041870, 975628N
- Blue Bird Number:4311205, 8313769
- BWP Number:M-4058
- Dana Number:10-400-10143
- Dayton Number:05-661
- Eaton Number:317166, 506726, 507032, 807566, 808125, 808139, 808162, 808176, 808688, 809613, 810180, 810728, 811847, 815790, 815809, 818220, 818301, 818552, 819036, 825468, 974239
- Euclid Number:E-6915, E-6924, E-6924A, E-6924B, E-6962
- Freightliner Number:BW 975628N, BW K041870, GUN AS1132, GUN AS1134, HDX 40010143
- Great Dane Number:GUNAS-1132, HAL40010143
- Haldex Number:400-10103, 40020239, 409-10134, 409-10135, 409-10223, 409-10238, 409-10313, 409-10370, 409-10387, 409-10412, 409-10509, 409-10548, 409-10555, 409-10565, 409-10649, 409-10733, 409-10860, 40910627, 500-10143, 509-10134, 509-10135, 509-10238, 509-10387, 509-10412, 509-10548, 509-10565, 509-10733, CS52351, CS56034, CS56048
- Leland Number:L3607
- Mack Number:25QD 410P4, 25QD260M6, 5396-40010143, 7883-40010143, MID40010143
- Meritor Number:R806022, 40010143, M807022
- Midwest Number:WA10143, BW K041870, GH AS1132, MD 40010143
- Navistar Number:BSJ975628N, BX975628N, BXK041870, HAL40010143, M807022, ZBRAS1132, ZBRAS1134, ZSA40010143, ZZ40010143, ZZ40020239, ZZ40910649
- Paccar Number:03-05886, 400-10143, 40010143M1D, 40910565, AS1132, K041870BXW
- Peterbilt Number:400-10143, 40010143M1D
- Spicer Number: 818552
- Sterling Truck Number:HDX 40010143
- Volvo Number:HAE40010143, MID40010143
- MPN: 40010143
SKU R801700-I
$12.95
Automatic slack adjuster guide pawl kit for All Meritor ASAs. Details
15 In Stock
- Automann Number:139.1700
- Euclid Number:E11432
- Meritor Number:R801700
- MPN: R801700-I
SKU 05-214
$36.32
Straight arm manual slack adjuster with 1.25 inch camshaft diameter 10 spline, 4.5 and 5. Details
2 In Stock
- Slack Adjustor Type:Manual
- Slack Adjustor Arm:Straight
- Camshaft Diameter:1.25 inches
- Spline Teeth:10
- Arm Span (A):4.50 inches
- Arm Span (B):5.50 inches
- Automann Number:134.1010
- Bendix Number:278302
- BWP Number:M-3375
- Crewson Number:CA4201
- Dana Number:10399
- Dayton Number:05-214EQ, 05-214Q, 05-214
- Euclid Number:E-4904, E-4904S, E-4904BK
- Freightliner Number:BW 278302, HDX KN48031, HDX KN55001, TDA R824009
- Great Dane Number:MERR824009
- Haldex Number:N21149E, N21149F, N21149G, KN48031, KN55001
- Leland Number:L2494
- Meritor Number:R822009, R822009, R824009, A4-3780H8, C3275G501, R825002
- Midland Number:KN48031
- Midwest Number:RI R82400
- Navistar Number:BX278302, R824009, ZZKN55001
- Paccar Number:278302BXW, C3275G501, KN55001M1D
- Spicer Number: 10-399, 10-399-10
- MPN: 05-214
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
- AutoCar Number:R802463, R802463-RI
- Automann Number:139.2835
- Dayton Number:05-563
- Euclid Number:E-11420, E-6994A
- Freightliner Number:GUN AS1140, HDX CS56040, TDA R802463
- Great Dane Number:ACCAS1140, GUNAS-1140
- Haldex Number:CS56040
- Mack Number:8235-R802463, TDAR802463
- Meritor Number:A443275Z1144, A44-3275-Z-1144, R802463, R803050, A29-3275-U-593, A29-3275-U-593S, A43-3275-Z-1144S, A57-3275-U-593S, A70-3275Z1144S, R802460
- Midwest Number:EU E-11420, GH AS1140, RI R802463
- Navistar Number:1694309C91, ATIR802463, R802463, ZBRAS1040, ZBRAS1140, ZZCS56040
- Paccar Number:CS56040M1D
- Sterling Truck Number:TDA R802463
- Volvo Number:764015073, 85102944, TDAR802463
- MPN: R802463-I
SKU 40020211I
$81.17
Haldex type Automatic Slack Adjuster. 1.5 inch 28 spline, 5. Details
8 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:135.S2840
- Bendix Number:K043197
- Euclid Number:E11921, E-11921
- Freightliner Number:BW K043197, HDX 40010211, HDX 40020211
- Great Dane Number:BNDK043197, HAL400-20211, HAL40010211
- Haldex Number:40020211, 400-20211, 409-20002, 40920026
- Mack Number:5396-40020211, MID40020211
- Meritor Number:M808019
- Midwest Number:BW K043197, MD 40020211
- Navistar Number:BXK043197, HAL40010211, M808019, ZBRAS1040, ZZ40020211
- Paccar Number:40010211M1D, 40020211, 40020211M1D, K043197BXW, M808019, SA40020211
- Peterbilt Number:40020211
- Sirco Number:SA10211
- Sterling Truck Number:HDX 40020211
- Volvo Number:MID40020211
- Manufacturers Part Number:409-20002
- Note:Product may vary from image shown.
- MPN: 409-20002
SKU AS1173
$90.90
Gunite type automatic slack adjuster for welded clevis chamber. 1. Details
Typically ships in 7 to 10 business days.
- Slack Adjustor Type:Automatic
- Slack Adjustor Arm:Straight
- Camshaft Diameter:1.50 inches
- Spline Teeth:28
- Arm Span (A):6.00 inches
- AutoCar Number:AS1173, AS1173-GJ
- Automann Number:138.2830FC
- Bendix Number:K041877
- BWP Number:M-3368
- Crewson Number:MK22103S, CB22103, CB22106, CI22103, CI22106, CS56004
- Dayton Number:05-562
- Euclid Number:E-6993A. E-6993, E-6993B, E-15056
- Freightliner Number:GUN AS1173, GUN SA11903
- Great Dane Number:ACCAS1141, BNDK041877, GUNAS-1141
- Gunite Number:AS1173, SA11903
- Haldex Number:CS52321
- Leland Number:L3005
- Mack Number:25QD419P4, 25QD 419P4, 3398-AS1173, GUNAS1173
- Midwest Number:BW K041877, GH AS1141, GH AS1173
- Navistar Number:BXK041877, BXK041877, ZBRAS1173
- Paccar Number:AS1173, K041877BXW
- Peterbilt Number:AS1173
- Spicer Number: 11-355, 11-511, 11-515, 11-519
- Sterling Truck Number:GUN AS1173
- Volvo Number:20714928, 20714924, GUNAS1173
- MPN: AS1173
SKU CB23106
$64.98
Crewson type automatic slack adjuster with 1.6. Details
4 In Stock
- Slack Adjustor Type:Automatic
- Slack Adjustor Arm:Straight
- Camshaft Diameter:1.62 inches
- Spline Teeth:37
- Arm Span (A):5.00 inches
- Arm Span (B):6.00 inches
- Automann Number:136.3741
- Crewson Number:CB23106
- Dayton Number:05-564
- Euclid Number:E6946, E-6995, E-6995A, E6995B
- Freightliner Number:BRU CB23106
- Great Dane Number:GUNAS1144
- Haldex Number:CS52326
- Meritor Number:R801102
- Midwest Number:WA23106, GH AS1144
- Navistar Number:ZBRAS1144
- Paccar Number:AS1144
- Sterling Truck Number:BRU CB23106
- Note:Product may vary from image shown
- MPN: CB23106
SKU CB41700
$62.32
Crewson Burnner type automatic slack adjuster. 1.5 inch - 10 spline, 5.5 inch span Details
4 In Stock
- Slack Adjustor Type:Automatic
- Slack Adjustor Arm:Straight
- Freightliner Number:BRU CB41700
- Sterling Truck Number:BRU CB41700
- Note:Product may vary from image shown
- MPN: CB41700
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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.
