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(888) 312-8812 Login SignupThe Mack Trunnion is a heavy-duty forged steel part built to handle the heavy weight and movement of vocational suspension systems. This genuine OEM unit features a machined shaft and reinforced shoulders that provide a solid seat for the rear leaf springs and bogie assemblies. The exterior is finished to protect the metal from road salt and moisture, while the bearing surfaces are ground to exact sizes for a tight mechanical fit. Because this Mack 25130237 trunnion is built for tandem axle setups, every mounting point is made to stay centered and stable even when the truck is hauling a full load over uneven ground.
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