This WIX Fuel Water Separator Filter fits your 1991 Mack RM -6 11.9L and is perfect for a tune up or performance upgrade. .
WIX Fuel Water Separator Filter for 2003-2016 Freightliner XC Straight Rail vb
WIX Fuel Water Separator Filter for 1993-1997 Ford LTS8000F 8.3L L6 - Gas xt
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Wix Fuel Water Separator P N 33757
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Wix Fuel/Water Separator Filter 33754 (533754)
