40057107SCREW (M5 x 16) COVER TO CYLINDER BLOCK

Fits models / variants:

Mercury outboard spare part 40057107 (SCREW (M5 x 16) COVER TO CYLINDER BLOCK). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 18 HP, 25 (2 CYL.). Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 40057107 (SCREW (M5 x 16) COVER TO CYLINDER BLOCK), documented in 18 exploded diagram location(s), across the 2-STROKE-CARB series.

Series	Model	Serial range	REF	Qty	Diagram
Mercury 2-STROKE-CARB	18-hp	5837437 THRU 6416712	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	18-hp	7173723 THRU 7207857	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	18-hp	8071973 THRU 8111973	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	18-hp	9308306 THRU 9378115	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	18-hp	ARCHIVE CAT 43465	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	18xd-hp	6443973 THRU 0B238463	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	18xd-hp	7209533 THRU 0A730006	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	18xd-hp	9378151 THRU 9507380	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	20xd-2-cyl	6443973 THRU 0B238463	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	20xd-2-cyl	7209533 THRU 0A730006	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	20xd-2-cyl	9415101 THRU 9507380	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	25-2-cyl	5705532 THRU 6416712	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	25-2-cyl	7166928 THRU 7207857	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	25-2-cyl	8073158 THRU 9415100	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	25-2-cyl	9315316 THRU 9378115	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	25xd	6443973 THRU 0B238463	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	25xd	7209533 THRU 0A730006	14, 23, 26	4, 6	View
Mercury 2-STROKE-CARB	25xd	9415101 THRU 9507380	14, 23, 26	4, 6	View

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Appears in diagrams of these models

18 HP
25 (2 CYL.)