19 MACK Rear: SW, SWW Walking Beam Key Part Number OEM Ref. Req. Description 1 AUTA846 10QK157 / 80AX300 2 Bushing Bronze, 3-1/2” Id. x 3-3/4” Od. x 3-7/16” Lg. 2 AUTMX302 43QK116 / 35AX688 4 Thrust Washer Bronze, 3-1/2” Id. x 5-5/16” Od. x 1/4” Tk. 3 AUTMX303 43QK117 4 Thrust Washer Steel, 4-3/8” Id. x 5-3/8” Od. x 3/8” Tk. 4 AUTMX301 88AX446 / 88AX449 / 88AK244 2 Collar Seal 4-3/8” Id. x 5-1/2” Od. x 9/16” Tk. 5 AUTMX305 23QJ112B 2 D-Washer 2-21/64” Id. x 4-7/8” Od. x 1/4” Tk. 6 AUTM1600K 25QJ223 AR Adjusting Nut Kit w/M1600 & Hrdw 7 AUTMTA505 1 Walking Beam Maintenance Pack 3-1/2” Bronze Center, w/ Bushings, Seal, Washers, Adj. Nut & Hrdw. 8 AUTC780412GR8 4AX320 / 6AX837 8 Insulator Box Bolt 7/8”-9 x 4-1/2” Lg. AUTF780512GR8 1AX475 8 Insulator Box Bolt 7/8”-14 x 5-1/4” Lg. AUTM4846 3AX1050 / 3AX1775 / 3AX1966 / 3AX1632 Insulator Box Bolt 7/8”-14 x 7-1/2” Lg. 9 AUTHLW108 35AX1310 8 Hard Flat Washer 9/32” Thk., 7/8” Id. 10 AUTLN106 21AX406 8 Lock Nut 7/8”-14 11 AUTM1158K 97QL339P3 / 97QL339P2 2 Trunnion Cap Kit w/Trunnion Cap, Gasket, Grease Fitting & Hrdw. 12 AUTM5164 3AX1525 2 Bolt 3/4”-16 x 5-1/2” Lg. 13 AUTABP1P 10QK365A 4 Upper Insulator 1-3/4” Dowel, 70 Duro. (ABP1P (Premium) 70 Duro) AUTABP4P 10QK370 4 Upper Insulator 1-3/4” Dowel, 70 Duro. (ABP4P (Premium) 70 Duro) 14 AUTM878 13QK246 8 Spacer 3.0” Wd. x 4.0” Lg. x 1-1/2” Tk. 15 AUTABP2P 10QK36B 4 Lower Insulator 1-3/4” Dowel, 70 Duro. (ABP2P (Premium) 70 Duro) 16 AUTA988 10QK371A 2 Bushing Rubber & Steel, 8-3/4” Wd. 17 AUTABP34HK Poly Upper/Lower Pad Kit (Includes hardware) AR = As Required (13) AUTABP1P AUTABP4P (15) AUTABP2P (9) AUTHLW108 (10) AUTLN106 (14) AUTM878 (4) AUTMX301 (3) AUTMX303 (2) AUTMX302 (2) AUTMX302 (12) AUTM5164 (16) AUTA988 (5) AUTMX305 (1) AUTA846 (1) AUTA846 (6) AUTM1600K (6) AUTM1600K (3) AUTMX303 (4) AUTMX301 (7) AUTMTA505 (11) AUTM1158K (5) AUTMX305 (2) AUTMX302 (2) AUTMX302 (1) AUTA846 (8) AUTC780412GR8 AUTF780512GR8 AUTM4846 (17) AUTABP34HK Please contact your Midwest Wheel Salesman if you don’t see the part you are looking for! Rubber/Poly Mack Insulator Kit Poly Lower (Includes Hardware) Hybrid Pad Kit (rubber/poly) NEW!
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