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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
21QB329AP78
PAI LCV-4057 MACK 800370 VALVE
Engine Brake Gasket Set (Item 24 in Drawings 1
Part Number OEM Number Description Qty 481831 687018C2
4333-2040848C91
PAI FRK-4088 MACK 3390-1681 REBUILD KIT FOR EM44940 AIR HORN (Expected @ 04/03/2026) 450465 21QB329AP78Product Details : Select Mack Applications : Rebuild Kit for EM44940 Air Horn. OEM Reference : Mack 3390 1681. Please do not hesitate to contact us with your vehicle, engine and or part(s) details to determine if this product is appropriate for your particular engine and or application. PAI Industries : Brand New, Premium Aftermarket ISO9001 Manufacturer Heavily Focused on U. S. A. Manufacturing Manufacturing Truck Parts in the U. S. A. since 1973 2
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