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Page 51
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page 50
PARTS
Mercury
MERCURY
PISTONS
INSERT PART NUMBER IN BOX
AT TOP OF PAGE TO OBTAIN PRICING.
2.4L
2100S
The PRO Piston is
a cast piston, cast
from high silicon
aluminum accord-
ing to original
equipment specifi-
cations.
When checking for cylinder
wear, be sure to check at the
top, the middle, and the
bottom of the cylinder.
The most wear will take place
around the ports. If the cylinder
is more than .003 out; bore the
hole and replace with an over-
size piston.
Top Guided
2.5L
2500P
Model
Cyl
Piston
Bore
PRO
PRO-V
PRO-HP
Wiseco
Size
Size
150 HP 1991
V-6
STD Port 3.500
2400P
2400PV
2400PH 3124PS
2.5 Liter, XR6
STD Star 3.500
2400S
2400SV
2400SH 3124SS
j
.015 Port 3.515
2415P
2415PV
2415PH
-
.015 Star 3.515
2415S
2415SV
2415SH
-
Bottom Guided
.020 Port 3.520
-
-
3124P2
Rod
.020 Star 3.520
-
-
3124S2
.030 Port 3.530
2430P
2430PV
2430PH 3124P3
.030 Star 3.530
2430S
2430SV
2430SH 3124S3
.044 Port 3.544
-
-
3124P4
.044 Star 3.544
-
3124S4
XR4 150 HP
See 175 HP 1985-91 on next page
150 HP 1998-2002
V-6
STD Port 3.500
2500P
2500PV
2500PH 3137PS
XR6 1993-2002
STD Star 3.500
2500S
2500SV
2500SH 3137SS
XRI 1992-2003
V-6
.015 Port 3.515
2515P
2515PV
2515PH
-
Sport Jet
.015 Star 3.515
2515S
2515SV
2515SH
-
All 2.5L 150 HP
.020 Port 3.520
-
-
3137P2
k
.020 Star 3.520
-
-
3137S2
(Top Guided)
.030 Port 3.530
2530P
2530PV
2530PH 3137P3
1995-UP
.030 Star 3.530
2530S
2530SV
2530SH 3137S3
.044 Port 3.544
-
-
3137P4
.044 Star 3.544
-
3137S4
175 HP 1976-81
V-6
STD Port 3.125
8000P
8000PV
8000PH 3108PS
2 Liter
STD Star 3.125
8000S
8000SV
8000SH 3108SS
j
.015 Port 3.140
8015P
8015PV
8015PH
-
Bottom Guided
.015 Star 3.140
8015S
8015SV
8015SH
-
.020 Port 3.145
-
-
3108P2
.020 Star 3.145
-
-
3108S2
.030 Port 3.155
8030P
8030PV
8030PH 3108P3
.030 Star 3.155
8030S
8030SV
8030SH 3108S3
.040 Port 3.165
-
-
3108P4
.040 Star 3.165
-
-
3108S4
.060Port 3.185
-
-
3108P6
.060Star 3.185
-
-
3108S6
j
Pistons fit bottom guided rods only. # 636-8118
k
Pistons fit top guided rods only # 644-818141
l
When using this piston in a sleeved block, bore is 3.377" and uses a different ring
Always specify the number of sleeved holes when ordering.
MERCURY PISTONS
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