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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
Mack
Mack SWS573 Camelback
(4" Spring, Rubber/Metal Center)
Rear Suspension
Key
No.
Part
Number Description
No.
Req.
OEM
Reference Remarks
1 ◆ Spindle, Service; 8 ³⁄₄" Wide Trunnion 1 85QK248 Replacement Production No. 85QK243
● 2 321-171 Bushing; Rubber/Metal; 8 ³⁄₄" Wide Trunnion 2 10QK371A 10 ⁵⁄₈"Lg
● 321-170 Bushing 2 10QK368A 9 ⁷⁄₁₆"Lg
✔✔ 3 334-579 Assembly, Bolt; ³⁄₄"-16 x 5 ¹⁄₂"Lg 2 3AX1525 Bolt & Lock Nut
● 4 338-704 Assembly, Trunnion; 8 ³⁄₄"W 2 39QK226C Casting No. 39QK427B
338-1785 Assembly, Trunnion 2 39QK426B
✔ ● 5 338-728 Box, Insulator; 6 ³⁄₈" Deep 4 52QK418BP5
✔ ● 338-746 Box, Insulator; 6 ³⁄₄" Deep 4 52QK418BP4
✔✔ ● 6 325-110 Insulator, Standard; 1 ³⁄₄" Dowel; 70
Durometer
4 10QK36B 70 Durometer, Rubber; Black
● 325-123 Insulator, Urethane; Severe Service; 1 ³⁄₄"
Dowel
4 10QK388 90 Durometer, Urethane; Yellow
● 325-127 Insulator, Urethane; Extra Service; 1 ³⁄₄" Dowel 4 80 Durometer, Urethane; Black
● 325-125 Insulator, Offset; 1 ³⁄₄" Dowel 4 10QK48 70 Durometer, Rubber; Black
✔✔ ● 7 338-729 Spacer; 3"W x 4"Lg x 1 ¹⁄₂"Thk 8 13QK246
✔✔ ● 8 325-113 Insulator; 1 ³⁄₄" Dowel; 70 Durometer 4 10QK370 70 Durometer, Rubber; Black
● 325-113U Insulator, Urethane 4
✔✔ ● 325-108 Insulator; Standard; 1 ¹⁄₂" Dowel; 70
Durometer
4 10QK32BP1 70 Durometer, Rubber; Black
9 See Charts Bolt, Insulator Box; ⁷⁄₈"-14 Thread 16 See Chart on Page 1048
✔✔ 10 334-150 Washer, Hard Flat; ⁷⁄₈" 12 35AX1310, 22962-2
11 SLN-106 Nut, Lock; ⁷⁄₈"-14 12
● 12 338-714 Saddle, U-Bolt; 9 ³⁄₄"Lg x 4"W 2 8QK335P2 Use w/Semi-Round U-Bolts; Replaces Jack Plate
13 See Charts Assembly, U-Bolt; Square or
Semi-Round Bend
4 Use Square Bend w/Jack Plates; Use Semi-Round
Bend w/Cast Top Plate (Current Design); See
Chart on Page 1051
14 DN-125 Nut, Deep; 1 ¹⁄₄"-12, Grade C 8 21AX131
DNM-200 Nut, Deep, 1 ¹⁄₄"-12, Grade C 8 21AX655
15 SUW-125 Washer, U-Bolt; 1 ¹⁄₄" 8 35AX1435
16 See Charts Torque Rod; OEM Fixed Length 2 See Chart on Page 1089
See Charts Torque Rod; Uni-Rod 2 See Chart on Page 1090
See Charts Torque Rod; 2-Piece Ultra Rod 2 See Chart on Page 1087
● 17 321-267 Bushing 2 w/ ⁷⁄₈" Bolt Holes
✔ ● 18 321-136 Bushing, Taper Stud Type 2 46735 Mack Style Stud
● 321-136U Bushing, Taper Stud Type 2
19 Spring Assembly Assembly, Spring 2 See Leaf Spring Web Catalog for Details