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Reference
www.daytonparts.comfor continuing updates.
Parts Listing
SP
Special Order
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821
Reyco
Reyco
74AR
Single/Tandem Axle
Trailer Air Suspension
Key
No.
Part
Number
Description
No.
Req.
OEM
Reference
Remarks
1
SP
Hanger, Front; LH/RH
2 13790-01
Undermount
2
345-217
Torque Rod, Adjustable; 13"-15"Lg
1 16595-01
Incl. 321-287 Bushings
SP
Torque Rod, Rigid, 14
¹⁄₄
" Lg c/c
1 16585-01
Use 345-217
●
3
321-287
Bushing; 1"ID x 2
³⁄₈
"OD x 4"Lg
4 15737-01
✔✔
4
334-203
Bolt; 1"-14 x 7
¹⁄₄
"Lg
4 T5492
✔✔
5
SLN-107
Nut, Lock; 1"-14
4
6
SP
Plate, Top
2 20157-01
7
SP
Seat, Axle
2
Specify Axle Type & Seat Height
8
SP
Plate, Bottom
2
Specify Axle Diameter
✔✔
9
361-248
Kit, U-Bolt; Round Bend, Grade 5
4 21090-125
⁷⁄₈
" x 3" x 12
¹⁄₂
" R
✔✔
361-218
Kit, U-Bolt; Round Bend, Grade 5
4 21090-140
⁷⁄₈
" x 3" x 14
¹⁄₂
" R
See Chart
Kit, U-Bolt
4
See Chart on Page 1051
10
354-7557
Air Spring
2 19983-01
✔
11
M65401
Shock Absorber
2
M66894
Shock Absorber
2
See Shocks
Shock Absorber
2 Various
Consult Shock Catalog for Model Specific
Applications
12
338-1644
Bracket, Frame; Track Rod
1 18919-01
13
345-770
Rod, Track
1 20969-01
40" Frame Width; Incl. 321-153 Bushings
✔✔ ●
14
321-153
Bushing;
⁷⁄₈
"ID x 1
²⁹⁄₃₂
"OD x 3"Lg
2 09729-01
✔
15
334-246
Assembly, Bolt;
⁷⁄₈
"-9 x 5
¹⁄₂
"Lg
2 10033-01
Incl. Bolt & Lock Nut
●
16
338-1460
Bracket, Track Rod
2 21491-01
Fabricated
✔✔ ●
17
334-750
Valve, Height Control; Universal
1
✔ ●
18
334-751
Linkage Assembly; Universal; Adjustable
1
3
⁵⁄₈
"-19
⁵⁄₈
" Range; Use w/All Height Control
Valves
19
TRA-3382
Spring, Leaf; LH
1 19897-01
See Leaf Spring Web Catalog for Details
TRA-3383
Spring, Leaf; RH
1 19898-01
See Leaf Spring Web Catalog for Details