1999 Western Star 4900 equipped with 14.6L L6 Diesel Turbo, 12L 6 Diesel Turbo, 12.7L L6 Diesel Turbo/Aftercooled, 10.8L L6 Diesel Turbo, 10.3L L6 Diesel Turbo
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with 35.5in x 23.875in x 2.25in Core with 4in Inlet with 4in Outlets
1999 Western Star 4900 equipped with 14.6L L6 Diesel Turbo, 12L 6 Diesel Turbo, 12.7L L6 Diesel Turbo/Aftercooled, 10.8L L6 Diesel Turbo, 10.3L L6 Diesel Turbo
with 35.5in x 23.875in x 2.25in Core with 4in Inlet with 4in Outlets