Page 441 - 2021 Sierra Catalog

OUTBOARD — MERCURY/MARINER - Internal Engine System
HP
Cyl.
4
4 6 6 6 6 6
Beginning Serial No.
Ending Serial No.
Std. Cyl. Dia. (Bore)
3.375
3.5 2.875 2.875 2.875 2.875 2.875
Std. Piston
18-4623
18-4626 —
—
— 18-4500 18-4500
.015 O.S. Piston .030 O.S. Piston
18-4624 18-4625
18-4627 18-4628 — —
— —
— — 18-4515 — 18-4515 —
Std. Rings .015 O.S.
18-3979 —
18-3982 — 18-3918 18-3916 18-3918 18-3916 18-3918 18-3916 18-3918 18-3916 18-3918 18-3916
Rings
.030 O.S. Rings
18-3981
— 18-3920 18-3920 18-3920 18-3920 18-3920
115 (4 cyl) w/Rod #646-818846
C100000 D283221
D283222 & UP 2641855 3253111 2839369 3293233 3293234 3502805 4865678 & UP 3502806 5327622
115 125 135 140 140 150
HP
105
(4cyl) BP
1400 1400 1500
JET
➂ Chart is for referencing only, pistons received will be 2 ring version 2 RING INLINE PISTON & RINGS APPLICATION
V-135
.030 O.S.
18-3923 18-3923 18-3923 18-3923
18-3984 18-3984 18-3923 18-3923 18-3923 18-3923 18-3923 18-3923
—
—
— 18-3923 —
— 18-3984 18-3984 18-3984 18-3984 18-3984 18-3984 —
— 18-3984
18-3984 — 18-3984 —
— 18-4052
V-135 (w/ rod 644-8141)
V-135 (2.5L)
(w/o rod 636-8141) V-140 JET
V-140 JET
V-150 MAR
V-150 MAR
V-150, 150,1500
V-150
V-150 (w/ rod 644-8141)
V-150 (2.5L)
(w/o rod 636-8141)
V-150 EFI XR6 MAGIII V-150 XR4 MAGIII V-150 XR4 MAGIII V-175,175, 1750 V-175
V-175
V-175
V-175
V-175 I XRI EF V-175
V-175 XRI EFI V-175 XRI EFI V-200, 2,002,000 V-200 (2.4L) V-200 (2.5L)
(w/ rod #644-818141) V-200 (2.5L)
V-200 XRI EFI V-200 XRI EFI V-220
V-225 V-225 (3.0L)
Model / HP
135, 150 2 Liter 135, 150 2 Liter 135, 150 2 Liter 135, 150 2 Liter 135, 150 2 Liter
SIERRA V-6 PISTON KIT CONTENTS (SEE APPLICATION CHARTS FOR SPECIFIC APPLICATIONS)
4 of — = 1 of 39-21665A12
4 of 18-3902 = 1 of 39-78816A12 4 of 18-3916 = 1 of 39-78811A12 4 of 18-3917 = 1 of 39-88392A12 3 of 18-3918 = 1 of 39-817096A6
3 of 18-3919 = 1 of 39-817096A16 3 of 18-3920 = 1 of 39-817096A26 6 of 18-3921 = 1 of 39-93481A12 2 of 18-3922 = 1 of 39-78918A4
2 of 18-3923 = 1 of 39-85636A4
6 of 18-3924 = 1 of 39-18487A12 2 of 18-3925 = 1 of 39-815267A4 6 of 18-3966 = 1 of 39-18653A12 6 of 18-3968 = 1 of 39-18653A2 6 of 18-3967 = 1 of 39-18653A1
423
Cyl.
V-6 V-6 V-6 V-6
V-6 V-6 V-6 V-6 V-6 V-6 V-6 V-6
V-6 V-6 V-6 V-6 V-6 V-6 V-6 V-6 V-6 V-6 V-6 V-6 V-6 V-6 V-6
V-6 V-6 V-6 V-6 V-6 V-6
Cyl.
V-6 V-6 V-6 V-6 V-6
Beginning Serial No.
D082000 A904646 C239553 C239553
D082000 G960500 5600162 6038681 4868998 6042946 C239553 C239553
D082000 B242885 C239553 4301235 6618751 C239553 D082000 G960500 D000750 D000750 D082000 G303046 4839034 6203991 C291520
D082000 C100861 C291520 B117316 5628028 D280813
Ending Serial No.
& UP C239552 G960499 G960499
G960499 UP 6038680 C239552 6042945 C239552 G960499 G960499
G960499 C239552 D081999 6618750 C239552 D081999 G960499 & UP D081999 D081999 G303045 & UP 6203990 C291519 D081999
& UP C291519 G960499 UP D280812 UP
Pistons Port
Dia. (Bore) Std. (Port) Stbd. .015” O.S. Stbd.
3.125 — — — 18-4013 3.125 — — 18-4560 3.125 — — — 18-4013 3.125 — — — 18-4560
3.5 18-4635 18-4636 18-4637 18-4638 3.5 18-4635 18-4636 18-4637 18-4638 3.125 — — — 18-4560 3.125 — — — 18-4560 3.125 — — — 18-4560 3.125 — — — 18-4560 3.125 — — — 18-4013 3.125 — — — 18-4560
3.5 18-4635 18-4636 18-4637 18-4638 3.375 — — 18-4565 18-4570 3.375 — — 18-4565 — 3.125 — — — 18-4560 3.375 — — — — 3.375 — — 18-4565 —
3.5 18-4635 18-4636 18-4637 18-4638 3.5 18-4635 18-4636 18-4637 18-4638 3.5 18-4635 18-4636 18-4637 18-4638 3.5 18-4635 18-4636 18-4637 18-4638 3.5 18-4635 18-4636 18-4637 18-4638 3.5 18-4635 18-4636 18-4637 18-4638 3.375 — — — — 3.375 — — — —
3.5 18-4635 18-4636 18-4637 18-4638
3.5 18-4635 18-4636 18-4637 18-4638 3.375 — — — —
3.5 18-4635 18-4636 18-4637 18-4638 3.375 — — — — 3.375 — — — — 3.625 18-4639 18-4640 18-4641 18-4642
Port .030 O.S.
— — — —
NA NA — — — — — —
NA — — — — — NA NA NA NA NA NA — — NA
NA — NA — — —
Stbd.
— 18-4575 — 18-4575
NA
NA 18-4575 18-4575 18-4575 18-4575 — 18-4575
NA
—
— 18-4575 —
— NA NA NA NA NA NA — — NA
NA
—
NA
—
— 18-4644
Piston Rings Std.
18-3921 18-3921 18-3921 18-3921
18-3982 18-3982 18-3921 18-3921 18-3921 18-3921 18-3921 18-3921
18-3982 18-3924 18-3924 18-3921 18-3927 ➃ 18-3924 18-3982 18-3982 18-3982 18-3982 18-3982 18-3982 18-3927 ➃ 18-3927 ➃ 18-3982
18-3982 18-3927 ➃ 18-3982 18-3927 ➃ 18-3927 ➃ 18-4050
.015” O.S.
18-3922 18-3922 18-3922 18-3922
—
— 18-3922 18-3922 18-3922 18-3922 18-3922 18-3922
— 18-3925 18-3925 18-3922 — 18-3925 —
—
—
—
—
—
—
—
—
—
—
—
—
— 18-4051
Circlips
N.S.S. N.S.S. N.S.S. N.S.S. N.S.S.
1 of 39-19721A6
1 of 39-822321A12 1 of 39-827179A12 1 of 39-813011A12
Bore Size Piston
3.125 / Std. (port) — 3.125 / Std. (stbd) — 3.140 / .015 (port) — 3.140 / .015 (stbd) 18-4013 3.155 / .030 (port) —
OEM Part #
765-7442T32 765-7441T32 765-7444A11 765-7443A11 765-7446A11
Piston Ring
18-3921 18-3921 18-3922 18-3922 18-3923
OEM Part #
39-93481A12 39-93481A12 39-78918A4 39-78918A4 39-85636A4
Wrist Pin
18-4287 18-4287 18-4287 18-4287 18-4287
3 of 18-4019 = 6 of 18-3982 = 6 of 18-4050 = 6 of 18-3927 =
3 RING PISTON AND RINGS APPLICATION (REFERENCE ONLY ➂)
APPLICATION CONTINUED ON NEXT PAGE