✓Exact Cross-Reference Water Pump Kit (8M0100526 Pattern): Direct aftermarket replacement for Mercury/Mariner/Quicksilver lower-unit and Alpha drive pumps. Replaces 8M0100526, 47-8M0100526, 46-43024A7, 47-43026K06, 47-43026Q06 and aftermarket Sierra 18-3214, GLM 12042, Mallory 9-48313, Honda 19210-ZWL-303. Match the kit bag label or old housing stamp before ordering
✓Fits Mercury/Mariner 40-150HP 4-Stroke & 2-Stroke + Alpha One Gen 2: Covers F40-F60 4-Stroke BigFoot/Command Thrust, 60HP 2S BigFoot (S/N 0D000750+), 75-115HP 4-Stroke, 150HP EFI 4-Stroke, 70-90HP 2S (S/N 0A996142+), 100-125HP 2S 4-cyl, V-200/225/250 3.0L 2S, Verado 4/6-cyl 4.80 inch gearcase, and MerCruiser Alpha One Gen 2 (S/N 0D469859+)
✓Complete 15-Piece Service Kit: Includes neoprene impeller (approximately 89mm OD), drive key, impeller plate, wear plate, face seal with installer tool, O-rings, quad ring, drain screw gaskets, and pump cover gaskets. Everything required for a full lower-unit water pump rebuild without separate hardware runs
✓Marine-Grade Cooling Restoration: Worn impellers shed vanes and kill the tell-tale stream. This kit restores raw-water lift, protects the powerhead/sterndrive from heat scoring, and is recommended every 100 to 200 running hours or 1 to 2 seasons. Impeller elastomer stays flexible across freshwater/saltwater temp swings
✓Drop-In Lower-Unit / Alpha Drive Swap: Seat the key, rotate impeller clockwise while lowering pump cover to bed vanes, grease the face seal, torque cover screws to manual spec. Disconnect battery and drain gear lube before teardown; inspect wear plate and replace if scored