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Mercury / Mariner / Force

INLINE 4-CYLINDER CROSSFLOW PISTONS

Crossflow Pistons for Inline 4-Cylinder 30-50 HP (1970-2002)
Mercury / Mariner / Force

These engines use ø 2.565” Pistons

30 Jet L4-Cyl. Keystone Rings 1998-2002
40 HP L4-Cyl. Keystone Rings 1990-1997
45 HP L4-Cyl. Keystone Rings 1986-1989
50 HP L4-Cyl. Keystone Rings 1970-1985

Pistons for above engines

GLM Piston No. Size OEM Piston No.
14370 ø 2.565 780-9229A7
14380 ø 2.565 +.015 780-9229A10
14390 ø 2.565 +.030 N/A
all pistons come with rings, pin and retainers

Rings for above ø 2.565” pistons

GLM Ring No. Size OEM Ring No.
14241 ø 2.565 39-18653A12
14251 ø 2.565 +.015 39-18653A1
14261 ø 2.565 +.030 N/A
all rings come 2 to a set

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