Bendix® Air Disc Brake Chamber Service Information
As fl eets continue to experience the advantages of Bendix® Air Disc Brakes and the number of vehicles with this
technology gr
equipment.
To make it easier for you to service your vehicle(s), below is some key information on service part numbers, maintenance
kits, and a cross reference guide.
A. Universal Replacement Chamber Guide
There are many OEM air disc brake chamber part numbers utilized by truck fl eets. However, as with S-Cam chambers, the
recommended service replacement part is provided in a “universal” confi guration by Type and Size of the chamber itself.
This greatly simplifi es stocking requirements. Here is the Bendix Air Disc Brake Chamber universal part number quick
reference guide.
Bendix® EverSure® Air Disc Brake Spring Brake Chamber
Type* Stroke
T16/24
T18/24 K043329 K052484
T20/24
T22/24 K043148 K052487
T24/24 K043270 K052488
* The chamber type is noted as TXX/5.6kN on the chamber bar code label. Note that 5.6kN refers to the force of the power spring.
Air Disc Brake spring brake chamber for trailers part number K026451 has been replaced by part number K043329.
ows, there is an increasing need to have information on the brake chambers that are used on this
Spring Brake
2.25”
(57mm)
2.50”
(63mm)
Universal
Replacement
Part No.
K042457 K052484
K041960 K052486 K090236
Diaphragm
Kit
Clamp
Ring
Kit
K090235
K090237
Dust
Plug
K034202 K090594
Bellows
Kit
NPTF Ports
3/8”-18
NG-3™ Piston Style Spring Brake Chamber
Spring Brake
Universal
Type Stroke
T14/24
T16/24 K026731 K052484
T18/16 K027557 K052485
T18/24
T20/24 K025669 K052486
T22/24 K026737 K052488
T24/24 K026734 K052488
2.25”
(57mm)
2.50”
(63mm)
Replacement
Part No.
K026735 — —
K025670 K052486
Diaphragm
Kit
Clamp
Ring
Kit
K090235
K090236
K090237
Bellows
Kit
K090594
Size and Ref. Part Number
are stamped here
3/8”-18
NPTF Ports
Air Disc Brake Service Chambers
Service New
Universal
Type Stroke
T12
T14 K028039
T16 K028226 K052484 K090235
T18
T20 K028225 K052486
T22 K028238 K052487
T24 K028252 K052488
Universal replacements may require re-clocking of the clamp band. See Bendix Service Data Sheet SD-02-4525 for instructions on re-clocking.
2.25”
(57mm)
2.50”
(63mm)
Replacement
Pc. No.
K028227
K028022 K052486
Diaphragm
Kit
— —
Clamp
Ring
Kit
K090236
K090237
Bellows
Kit
K090594
3/8”-18
NPTF Ports
1
B. Bendix Air Disc Brake Chamber Maintenance Kit Contents
The following describes the components included in the maintenance kits referenced in Section A (Diaphragm Kit, Clamp
Ring Kit, Bellows Kit):
Maintenance Kits for Air Disc Brake Chambers
7
6
Item
No. Description
1 Diaphragm 1 — —
2 Bellow 1 — 1
3 Spring 1 — —
4 Lock Nut 2 — 2
5 Screw 1 1 —
6 Hex Nut 1 1 —
7 Spacing Sleeve 1 1 —
8 Clamp Ring — 1 —
9 Grease Packet (not shown) 1 — 1
Diaphragm
Kit
5
8
1
Kit Contents
Clamp Ring
Kit
3
2
4
Bellows
Kit
Caution: Be sure to follow the instruction sheet included in the kit when servicing.
The replacement diaphragm must match the original diaphragm.
The clamp band torque is 20 ft-lbs. (28 Nm.)
The mounting nut torque is 133 ft-lbs. (180 Nm.)
For Specifi c Part No. information, please see section A.
2
C. Bendix Air Disc Brake Chamber – OEM to Universal AM Replacement Cross-Reference
Infor
mation
Bendix Air Disc Brake Service Chambers
OEM
Part No. Size Stroke
5016147
5016148
5016149
5016150
5016151
5016152
5016153
5016154
5016155
5016156
5016157
5016158
5016159
5016160
5016161
5016162
5017775
5017776
5018500
5018501
5019682
5019683
K025439
K025440
K026449
K026450
K034179
K034180
5016179
5016180
5016183
5016184
5016185
5016186
5016187
5016188
5016189
5016190
5016191
5016192
5017995
5017996
5018299
5018300
5020042
5020043
T20
T16
2.50”
(64mm)
2.25”
(57mm)
Universal AM
Replacement Kit
K028225
K028226
OEM
Part No. Size Stroke
5020282
5020283
K031541
K031542
K034062
K034063
5016736
5016737
5016738
5016739
5016756
5016757
5018616
5017617
5019418
5019419
5019420
5019421
5019724
5019725
K031569
K031570
K034105
K034106
K044753
K044754
K044755
K044756
5016691
5016692
5016693
5016694
5016695
5016696
5019385
5019386
K035714
K035715
5017180*
5017181*
5017773*
5017774*
5017787*
5017788*
5017789*
5017790*
*OE PN had 57mm stroke and is no longer in production. All of these
chambers can be serviced by Universal replacement T18 (64mm) part
number K028022, but they should always be replaced in pairs across
axle due to the stroke differences.
T16
T18
T20
T22
T24
T18
2.25”
(57mm)
2.50”
(64mm)
2.50”
(64mm)
2.50”
(64mm)
2.50”
(64mm)
2.25”
(57mm)
Universal AM
Replacement Kit
K028226
K028022
K028225
K028238
K028252
K028022
Universal r
eplacements may require re-clocking of the clamp band. See Bendix Service Data Sheet SD-02-4525 for instructions on re-clocking.
3
Bendix Air Disc Brake Service Chambers, continued
OEM
Part No. Size Stroke
5016678
5016679
5016680
5016681
5016710
5016711
5017096
5017097
5016665
5016666
5016667
5016668
5019740
Universal replacements may require re-clocking of the clamp band. See Bendix Service Data Sheet SD-02-4525 for instructions on re-clocking.
T22
T12
2.50”
(64mm)
2.25”
(57mm)
Universal AM
Replacement Kit
K028238
K028227
OEM
Part No. Size Stroke
5016650
5016651
5016652
5016653
5016654
5016655
5016656
5016657
5020018
5020019
K031902
K031901
K025442
K025443
T14
T16
T18
2.25”
(57mm)
2.25”
(57mm)
2.50”
(64mm)
Universal AM
Replacement Kit
K028039
K028226
K028022
NG-3 Piston Style Spring Brakes
Universal
Replacement AM
OEM
Part No. Size Stroke
5017187
5017188
5017758
5017759
5017760
5017761
5016450
5016451
5016452
5016453
5016454
5016455
5016941
5016942
5016722
5016723
5016724
5016725
5016726
5016727
5016770
5016771
5018434
5018435
Universal replacements may require re-clocking of the clamp band. See Bendix Service Data Sheet SD-02-4525 for instructions on re-clocking.
T18/16
T16/24
2.25”
(57mm)
2.25”
(57mm)
2.50”
(64mm)
Part No.
(Piston Style) Ref PN
K027557 K012314
K026731 K011097
K025670 K011236
Size and Ref. Part Number
are stamped here
3/8”-18
NPTF Ports
4
NG-3 Piston Style Spring Brakes, continued
Universal
Replacement AM
OEM
Part No. Size Stroke
5018436
5018437
5018450
5018451
5019734
5019735
K025437
K025438
5016264
5016265
5016279
5016280
5016281
5016282
5016283
5016284
5016285
5016286
5016287
5016288
5016289
5016290
5016775
5016776
5016784
5016785
K025435
K025436
5016463
5016464
5016465
5016466
5016467
5016468
5016469
5016470
K029173
K029174
5016933
5016934
5017710
5017711
T18/24 2.50”
(64mm)
T20/24
T24/24
T22/24
2.50”
(64mm)
2.50”
(64mm)
2.50”
(64mm)
Part No.
(Piston Style) Ref PN
K025670 K011236
K025669 K011101
K026734 K011109
K026737 K011106
Size and Ref. Part Number
are stamped here
3/8”-18
NPTF Ports
Universal replacements may require re-clocking of the clamp band. See Bendix Service Data Sheet SD-02-4525 for instructions on re-clocking.
5
Bendix EverSure® Double Diaphragm ADB Spring Brakes
OEM
Part No. Size Stroke
K042441
K042442
K042443
K042444
K042445
K042446
K042447
K042448
K043290
K043291
K043294
K043295
K043296
K043297
K043302
K043303
K043304
K043305
K057415
K057416
K057417
K057418
K059879
K059880
K065798
K059884
K059885
K065541
K066986
K066987
K066988
K066989
K039215
K039219
K039220
K039221
K039222
K039225
K039227
K039229
K039230
K039231
K039232
K057413
T16/24
T18/24
T16/24
T18/24
T20/24
2.25”
(57mm)
2.25”
(57mm)
2.25”
(57mm)
2.25”
(57mm)
2.50”
(64mm)
Universal Replacement
AM PN – EverSure® ADB
K042457
3/8”-18
NPTF Ports
K043329
K042457
K043329
K041960
Universal r
6
eplacements may require re-clocking of the clamp band. See Bendix Service Data Sheet SD-02-4525 for instructions on re-clocking.
Bendix EverSure® Double Diaphragm ADB Spring Brakes, continued
OEM
Part No. Size Stroke
K057414
K059877
K059878
K065543
K043136
K043137
K043138
K043139
K059882
K059883
K072251
K043250
K043251
K043252
K043253
K043254
K043255
K043256
K043257
K043258
K043259
5017127
5017128
5017129
5017130
5017661
5017662
5020487
5020488
5020489
K026129
K026128
K026127
K026453
T20/24
T22/24
T18/5.4
2.50”
(64mm)
2.50”
(64mm)
2.25”
(57mm)
Universal Replacement
AM PN – EverSure® ADB
K041960
K043148
K043270
K043329
3/8”-18
NPTF Ports
Universal replacements may require re-clocking of the clamp band. See Bendix Service Data Sheet SD-02-4525 for instructions on re-clocking.
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