Sierra Marine Parts Catalog

403 Model / HP Cyl. Bore Size Piston OEM Part # Piston Ring OEM Part # Circlips OEM Part # 2 RING PISTONS - HIGH DOME 35-140 2 - 6 2.875 / Std. — 774-9137A12 18-3918 39-817096A6 18-4294 ➃ 40-52035 35-140 2 - 6 2.890 / .015 774-9137A13 18-3919 39-817096A16 18-4294 ➃ 40-52035 35-140 2 - 6 2.905 / .030 18-4535 774-9137A14 18-3920 39-817096A26 18-4294 ➃ 40-52035 2 RING PISTONS - LOW DOME 35-140 2 - 6 2.875 / Std. — 774-9137A9 18-3918 39-817096A6 18-4294 ➃ 40-52035 35-140 2 - 6 2.890 / .015 18-4515 774-9137A10 18-3919 39-817096A16 18-4294 ➃ 40-52035 35-140 2 - 6 2.905 / .030 774-9137A11 18-3920 39-817096A26 18-4294 ➃ 40-52035 3 RING PISTONS - HIGH DOME 35-140 2 - 6 2.875 / Std. 776-8896A3 ➀ 18-3902 39-78816A12, 39-45155A12 18-4294 ➃ 40-52035 35-140 2 - 6 2.890 / .015 776-8897A2 18-3916 39-78811A12, 39-45204A12 18-4294 ➃ 40-52035 35-140 2 - 6 2.905 / .030 18-4535 776-8898A2 ➀ 18-3917 39-88392A12, 39-88392 18-4294 ➃ 40-52035 ALL PISTONS ARE SUPPLIED COMPLETEWITH PISTON RINGS, WRIST PIN AND CIRCLIPS. MARINER (JAPANESE MODELS) Sierra Piston Kit Contents (See Application Charts for Specific Applications) MARINER PISTON AND RINGS APPLICATION - JAPANESE MODELS APPLICATION CONTINUED ON NEXT PAGE ➀ 3 ring high dome NLA, 2 ring piston are now substituted ➁ 3 ring low dome NLA, 2 ring piston are now substituted ➂ Chart is for referencing only, pistons received will be 2 ring version 3 RING PISTONS - LOW DOME 35-140 2 - 6 2.875 / Std. — 776-8600A9 ➁ 18-3902 39-78816A12 18-4294 ➃ 40-52035 35-140 2 - 6 2.890 / .015 776-9095A1 ➁ 18-3916 39-78811A12, 39-45204A12 18-4294 ➃ 40-52035 35-140 2 - 6 2.905 / .030 18-4156 776-9096A1 18-3917 39-88392A12, 39-88392 18-4294 ➃ 40-52035 2 RING PISTONS - CROSSFLOW 40-50 4 2.565 / Std. 18-4620 780-9229A7, 743-5172A6, 743-3193A4, 743-3193A2 18-3966 39-18653A12 18-4294 ➃ 40-52035 40-50 4 2.580 / .015 18-4621 780-9229A10, 743-3366A2, 743-3366A1 18-3967 39-18653A1 18-4294 ➃ 40-52035 40-50 4 2.595 / .030 18-4622 780-9229A11, 743-7716A2 18-3968 39-18653A2 18-4294 ➃ 40-52035 50-60 3 2.875 / Std. — 783-9613A1 18-4019 39-19721A6 18-4294 ➃ 40-52035 50-60 3 2.890 / .015 18-4017 783-9613A2, 783-9613T2 18-4020 39-19721A1 18-4294 ➃ 40-52035 50-60 3 2.905 / .030 18-4018 783-9613A3, 783-9613T3 18-4021 39-19721A2 18-4294 ➃ 40-52035 70-115 3-4 3.375 / Std. 18-4623 777-815965T4, 777-815965A4 18-3979 39-96170A12 18-4294 ➃ 40-52035 70-115 3-4 3.390 / .015 18-4624 777-815965A5 — 39-96170A3 18-4294 ➃ 40-52035 70-115 3-4 3.405 / .030 18-4625 777-815965A6 18-3981 39-96170A4 18-4294 ➃ 40-52035 75-125 3-4 3.500 / Std. 18-4626 2704-826191T4, 2704-826191A4, 2704-826191A6, 2704-821896A6, 2704-812896A2 18-3982 39-822321A12, 39-824905A12 18-4294 ➃ 40-52035 75-125 3-4 3.515 / .015 18-4627 2704-821896A3 — 39-822321A1 18-4294 ➃ 40-52035 75-125 3-4 3.530 / .030 18-4628 2704-821896A4 18-3984 39-822321A2 18-4294 ➃ 40-52035 OUTBOARD — MERCURY/MARINER - Internal Engine System Model / HP Cyl. Bore Size Piston OEM Part # Piston Ring OEM Part # 9.9 / 15 2 std 18-4135 761-7982M, 761-7982T, 761-7134M, 761-7133M, 761-7131M 18-3976 39-15320M, 39-15320T 48 2 std 18-4138 761-8484M, 761-7198M, 761-7197M, 761-7196M — — Model Ser# Code Ser # Standard Piston .25mm Piston .50mm Piston Standard Rings .25mm Rings .50mm Rings Qty. Req’d 9.9 682 ALL 18-4135 — — 18-3976 18-3977 18-3978 2 15C 684 ALL 18-4135 — — 18-3976 18-3977 18-3978 2 30A 689 ALL 18-4138 — — — — — 2 20C, 25A 6A9 ALL — — — — 18-3986 — 2 25C 695 ALL — — — — 18-3986 — 2 28 664 ALL — — — — 18-3986 — 2 48 670 S-02441 & Up / L33132 & UP — — — — 18-3992 — 2 W48 670 M 002731 & Up / ML 314101 & Up — — — — 18-3992 — 2 60 675 E 00101-001170 / EL 30101-304180 — — — — 18-3992 — 2 MERCURY / MARINER Sierra Piston Kit Contents (See Application Charts for Specific Applications) 3 RING PISTON AND RINGS APPLICATION (REFERENCE ONLY ➂ ) HP Cyl. Beginning Serial No. Ending Serial No. Std. Cyl. Dia. (Bore) Std. Piston .015 O.S. Piston .030 O.S. Piston Std. Rings .015 O.S. Rings .030 O.S. Rings 3.5 1 6202173 & UP 2 — — — — — ➃ This product is priced per piece. To order priced per package, please add -9 to the part number. MARINER PISTON RINGS - JAPANESE MODELS .25mm O.S. O.E. # 18-3977 39-18939M, 39-18939T .25mm O.S. O.E. # 18-3986 39-81096M .25mm O.S. O.E. # 18-3992 39-83196M .50mm O.S. O.E. # 18-3978 39-15322M