Hendrickson INTRAAX AAT
23K, 25K, 30K Top Mount
Fixed Trailer Suspension Parts


Hendrickson INTRAAX AAT trailer suspension exploded view
Key
No.
Part
Number
Description No.
Req.
OEM
Number
Remarks
1 8709 Air Spring
AAT 23K models
2 S-21800 13.5" to 19" ride heights
1 Special Order Air Spring
AAT 23K models
2 S-26773 12" to 13" ride height
1 8091 Air Spring
AAT 25K models
2 S-21784 13.5" to 19" ride heights
1 8774 Air Spring
AAT 30K models
2 S-27341  
2 Special Order Air Spring Flex Plate 2 B-23294 Weld-on
2 Special Order Air Spring Flex Plate 2 B-24813 Bolt-on for 14", 15", 16" and 17"
2 Special Order Air Spring Flex Plate 2 B-24812 Patterned Bolt-on for 14", 15", 16" and 17"
3 334-1802 Plastic Air Spring Spacer, 1-1/8" Thick 2 B-22510-1 15" ride height
3 334-1803 Plastic Air Spring Spacer, 1-7/8" Thick 2 B-22510-2 16" ride height
3 334-1804 Plastic Air Spring Spacer, 3-1/8" Thick 2 B-22510-3 17" ride height
4 Special Order Air Spring Mounting Plate
Weld-on
2 S-20905 13.5" to 19" ride height
4 Special Order Air Spring Mounting Plate
Weld-on
2 S-23294 Used on AAT 30K with 13.5" and 14" ride height
4 Special Order Air Spring Mounting Plate
Bolt-on
2 B-21145 Distance from outboard side of spacer to center of first trailer frame mounting bolt hole is 1.5", 13" to 17" ride heights, STD and LR
4 Special Order Air Spring Mounting Plate
Bolt-on
2 B-22390 Distance from outboard side of spacer to center of first trailer frame mounting bolt hole is 2-1/4", 13" to 17" ride heights. STD and LR
4 Special Order Air Spring Mounting Plate
Bolt-on
2 B-21715 Distance from outboard side of spacer to center of first trailer frame mounting bolt hole is 13/4", 13" to 17" ride heights, STD and LR
4 Special Order Air Spring Mounting Plate
Bolt-on
2 B-27264 13.5" to 19" ride height, STD and LR
4 Special Order Air Spring Mounting Plate
Bolt-on
2 C-20192 12" ride height
5 Special Order Air Spring Mounting Kit
12" ride height
2 S-4903/2  
5 Special Order Air Spring Mounting Kit
13.5", 14", 18" and 19" ride heights
2 S-22619/2  
5 334-1629 Air Spring Mounting Kit
15" ride height
2 S-22630/2 Use with 1-1/8" plastic spacers
5 334-1630 Air Spring Mounting Kit
16" ride height
2 S-22631/2 Use with 1-7/8" plastic spacers
5 334-1702 Air Spring Mounting Kit
17" ride height
2 S-22632/2 Use with 3-1/8" plastic spacers
6a MHS97 Eccentric Alignment Collar (Outer) 2 S-20925 Pivot hole is offset from the center of collar
6b MHS99 Eccentric Alignment Collar (Inner) 2 S-20924 Pivot hole is in center of collar
7 MHS203 Pivot Bolt Kit 2 S-24679 Includes 10" shear-type bolt, nut and washers
8 S-24691 Quick-Align Pivot Bushing Kit 2 S-24691 Includes bushing, pivot bolt kit, bushing tube spacers and lube
Bushing tool, S-21307 is required to correctly rebush the suspension
9 85000 Standard Duty Shock Absorber 2 S-23566 For use on 23K and 25K models
9 Special Order Shock Absorber
Extended service with high dampening
2 S-24023 For use on all 30K models, some 23K and 25K models
10 S-21786 Air Spring Bottom Disk 2   Used on 25K and 30K
11 Special Order Air Spring Spacer Assembly 2 Various