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Page 47
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page 46
PARTS
Mercury
MERCURY
PISTONS
NOTES:
For Mercruy Sport Jet 90 & 120 HP piston applications, see Force chart on page 8.
INSERT PART NUMBER IN BOX
AT TOP OF PAGE TO OBTAIN PRICING.
The PRO Piston is a cast
piston, cast from high
silicon aluminum
according to original
equipment specifications
This must be Bottom Guided
Top Guided or
Not Top Guided
It's easy to tell by looking at
the forging number on the
rod.
Then check the chart below
Model
Top Guided
Bottom
Guided
3 & 4 Cyl 646-81884 638-85321
V-6
644-818141 636-8118
See Page 72 for Connecting Rods
INSERT PART NUMBER IN BOX
AT TOP OF PAGE TO OBTAIN PRICING.
PRO 9100 Series
Model
Cyl Piston
Bore
PRO
PRO-V
PRO-HP
Wiseco
Size
Size
60 HP 1984-90
3
STD
2.875
9000
9000V
9000H
3109PS
65 HP 1973-76
3
.015
2.890
9015
9015V
9015H
-
70 HP 1977-83
3
.020
2.895
-
-
-
3109P2
75 HP 1984-86
4
.030
2.905
9030
9030V
9030H
3109P3
Crossflow
.040
2.915
-
3109P4
75 HP 1990-91
3
STD
3.375
2611
2611V
2611H
3120PS
Loop Charge
.010
3.385
-
-
-
3120P1
.015
3.390
2613
2613V
2613H
-
.020
3.395
-
-
-
3120P2
Bottom Guided
.030
3.405
2615
2615V
2615H
3120P3
Conn Rod
.040
3.415
-
3120P4
75 HP 1992-93
3
STD
3.375
4200
4200V
4200H
3142PS
(Top Guided rod)
.010
3.385
-
-
-
3142P1
.015
3.390
4215
4215V
4215H
-
Loop Charge
.020
3.395
-
3142P2
.030
3.405
4230
4230V
4230H
3142P3
75 HP 1994-2004
3
STD
3.500
6200
6200V
6200H
3162PS
Loop Charge
.015
3.515
6215
6215V
6215H
.020
3.520
-
3162P2
.030
3.530
6230
6230V
6230H
3162P3
.044
3.544
-
3162P4
80 HP 1978-83
4
STD
2.875
9000
9000V
9000H
3109PS
Crossflow
.015
2.890
9015
9015V
9015H
-
.020
2.895
-
-
3109P2
High Dome
.030
2.905
9030
9030V
9030H
3109P3
.040
2.915
-
3109P4
80 HP 1987-89
3
STD
3.375
2611
2611V
2611H
3120PS
Loop Charge
.010
3.385
-
-
3120P1
.015
3.390
2613
2613V
2613H
-
Bottom Guided
.020
3.395
-
-
3120P2
Conn Rod
.030
3.405
2615
2630V
2630H
3120P3
.040
3.415
-
3120P4
85 HP 1973-77
4
STD
2.875
9000
9000V
9000H
3109PS
90 HP 1978-87
6
.015
2.890
9015
9015V
9015H
-
Crossflow
.020
2.895
-
-
3109P2
High Dome
.030
2.905
9030
9030V
9030H
3109P3
.040
2.915
-
3109P4
90 HP 1987-91
3
STD
3.375
2611
2611V
2611H
3120PS
Loop Charge
.010
3.385
-
-
3120P1
.015
3.390
2613
2613V
2613H
-
Bottom Guided
.020
3.395
-
-
3120P2
Rod
.030
3.405
2615
2615V
2615H
3120P3
.040
3.415
-
3120P4
MERCURY PISTONS
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