WSM

Piston Kit - Mercury / Mariner 50-150 HP Cross Flow 73-90 Standard OEM# 7437A3 | WSM 100-15K

$144.75 AUD

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Size Standard .015 Over .010 Over .020 Over .030 Over .040 Over

Quantity

Low Stock. We might need to transfer this product from one of our other warehouses. It could be 3-10 Days before we can dispatch this product.

Replacement piston kit for selected Mercury / Mariner 50 - 150 HP Cross Flow models (1973–1990) — WSM 100-15K.

Product Details

Brand	WSM
Part Number	100-15K
Product Type	Piston Kit
Application	Mercury

Available Sizes

Choose standard or over-size bore: Standard Bore, Over-Size Bore, Over-Size Bore, Over-Size Bore, Over-Size Bore, Over-Size Bore. Select the WSM SKU that matches your engine bore.

Option	Bore	WSM SKU
Standard (this listing)	—	100-15K
+0.00 mm	—	100-15-045K
+0.00 mm	—	100-15-04K
+0.00 mm	—	100-15-05K
+0.00 mm	—	100-15-06K
+0.00 mm	—	100-15-07K

Fitment

Fits selected Mariner / Mercury models — see table below.

Mariner

Model	Engine	Years
ALL Mariner ALL Mercury 3 Cyl 2.875 Bore Cross Flow	50	1983–1990

Mercury

Model	Engine	Years
3 Cyl 2.875 Bore Cross Flow	50	1983–1990
3 Cyl 2.875 Bore Cross Flow	60	1984–1990
3 Cyl 2.875 Bore Cross Flow	65	1973–1976
3 Cyl 2.875 Bore Cross Flow	70	1977–1983
6 Cyl 2.875 Bore Cross Flow	115	1980–1988
6 Cyl 2.875 Bore Cross Flow	140	1978–1981
6 Cyl 2.875 Bore Cross Flow	150	1973–1978
6 Cyl 2.875 Bore Cross Flow	90	1984–1988