Hendrickson Trailer Parts Catalog

PRIMARY FIXED SUSPENSION SYSTEM

INTRAAX ® Suspension Components

ZMD ® ZERO MAINTENANCE DAMPING ® COMPONENTS – AAT 23K and AAT 25K only

(Not Shown)

PER AXLE

ITEM DESCRIPTION

PART NO.

NOTE

25 ZMD ® AIR SPRING

14"- 19" ride heights only; Standard and Limited Rebound 9 travel

AAT 23K

Composite piston

S-39400 S-35510

2 2

Steel piston

AAT 25K

Composite piston

S-39401

2

26 ZMD DOWNSTOP

S-33669

2 2 2

14" and 16" ride heights 10

15" - 17" ride heights

S-33669-3 S-24049/2

27 ZMD DOWNSTOP BOLT KIT

Includes shear bolts, spacers, washers, hex bolt and hex nut Includes 2 ZMD air springs, 2 down stop assemblies and hardware

28 ZMD RETROFIT KIT

AAT 23K

14" ride height 15" ride height 16" ride height

S-39350-2 S-39350-4

1 1

Standard travel Limited rebound

S-39350-9 S-39350-10 S-39350-4

1 1 1

17" ride height

AAT 25K

14" ride height 15" ride height 16" ride height

S-39350-11 S-39350-12

Standard travel Limited rebound

S-39350-13 S-39350-17 S-39350-14 S-39350-15 S-39350-16 B-22510-1

17" ride height 18" ride height 19" ride height

29 AIR SPRING SPACER

2

16" ride height only

9. Available on 14" and 16" ride heights only. 10. Available only on Raised-Center Axle with Limited Rebound travel.

62

Trailer Commercial Vehicle Systems

Refer to Hendrickson Literature No. L405 - INTRAAX AAT Parts List

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