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Reference for continuing updates.
Parts Listing
SP Special Order ◆ Not Serviced by Dayton Parts Product Illustration/Photo Follows Popular Most Popular
Hendrickson Trailer SURELOK®
Hendrickson Trailer
Key Number: 1 2 3 4
Suspension
Model
Diagram
(Item)
Production
Date
Actuator
Type
Actuator
Part No.
Spring
Part No.
Shaft Bracket
(road/curb)
Ride Height
Lock Assembly
INTRAAX® AAT, 23k & 25k A Chamber A-21452 S-21539 — Specify Axle Track & Ride Height
INTRAAX® AANT, 23k A Chamber A-21452 S-21539 — Specify Axle Track & Ride Height
VANTRAAX® HKANT, 40k; HKANT,
46k; HKA180
B <05/99 Chamber — S-21539 — Specify Box Width & Ride Height
C 05/99<12/01 Air Spring S-25593 S-24495 C-24453-1/-2
D 12/01+ Air Spring S-25593 B-26597 C-24453-1/-2
VANTRAAX® HKAT, 46k; Wide
Bushing & Straight Beam
E <04/98 Chamber A-21452 S-21539 — Specify Box Width, Ride Height &
Actuator Type
B 04/98<05/99 Chamber S-23169 S-21539 C-24453-1/-2
C 05/99<12/01 Air Spring S-25593 S-24495 C-24453-1/-2
D 12/01+ Air Spring S-25593 B-26597 C-24453-1/-2
HK190/230 F Chamber A-21452 S-21539 — Specify Box Width, Ride Height &
Actuator Type
Air Spring S-25593 B-26597 —
HT190/230 F Chamber A-21452 S-21539 — Specify Box Width & Ride Height
HT250US G Chamber S-23169 S-21539 — Specify Box Width & Ride Height
HS190/230 A Chamber A-21452 S-21539 — Specify Box Width & Ride Height
Hendrickson
Part No.
Dayton
Part No. Description
A-21452 SP Type 9 Chamber
S-25593 ✔ S-25593 Sleeve Type Air Spring
S-23169 SP Type 16 Chamber
S-21539 ● 334-2074 Spring; 1 ¹⁄₄" x 6 ¹⁄₈" x .199
S-24495 ● 334-2075 Spring; 1 ¹⁄₄" x 4 ³⁄₈" x .148
B-26597 ● 334-2076 Spring; 1 ¹⁄₂" x 6 ⁵⁄₈" x .177
C-24453-1 SP Bracket; Roadside
C-24453-2 SP Bracket; Curbside
Cross Reference
SURELOCK ® Air Controls
Hendrickson
Part No.
Dayton
Part No. Description
VS-22535 ● 334-2017 3-Way Ball Valve
VS-23588 ● 334-2077 3-Way Piloted Valve
VS-24988 SP 2-Way Check Valve
VS-14719 ✔ ● 334-2078 4-Way Push/Pull