O-Ring 25-25439/25439

OEM No.: 25-25439/25439

Similar Number:

Sierra No.: 18-7420

Mallory No.: 9-76505

GLM No.: 81180

For MERCURY outboard 35, 39, 40, 45, 50, 60, 70, 75, 80, 90, 115, 120, 135, 150, 175, 200, 225, 250 HP & Jet 30, 140 HP & Stern drive & Inboard

35 HP - 35
35 HP - 35 (2 CYL.)
39/40 HP - 39 (1 CYL.)
39/40 HP - 40 (1 CYL.)
40 HP30 JET - 30 JET
40 HP30 JET - 40 (4 CYL.)
45 HP - 45 (4 CYL.)
45/50 HP - 45 (4 CYL.)
45/50 HP - 50 (4 CYL.)
60 HP - 60
60 RENAULTMERCRUISER "0" DRIVE UNIT - 0 (Sterndrive) 1965-1966
60 RENAULTMERCRUISER "0" DRIVE UNIT - 60 RENAULT 68 I/L4 1965-1968
70 HORSEPOWER - 70
75 HP - 75 (4 CYL.)
80 ENGINE AND 80 STERNDRIVE - 80 (Sterndrive) 1966-1969
80 ENGINE AND 80 STERNDRIVE - 80 RENAULT 80 I/L4 1966-1969
80 HORSEPOWER - 80
90 ENGINE AND STERNDRIVE - 90 (Sterndrive) 1970-1972
90 ENGINE AND STERNDRIVE - 90 RENAULT 96 I/L4 1970-1972
90 HORSEPOWER - 90 (6 CYL.)
90/115 HP (INLINE) - 115 (6 CYL.)
90/115 HP (INLINE) - 90 (6 CYL.)
115 HORSEPOWER - 115 (6 CYL.)
115/135/150 DFI (2.5L) - V-135 DFI (2.5L)
120 HP/2.5L140 HP/3.0L R/MR/ALPHA ONE - 120 GM 153 I/L4 1983-1986
120 HP/2.5L140 HP/3.0L R/MR/ALPHA ONE - 140 GM 181 I/L4 1982-1986
120 HP/2.5L140 HP/3.0L R/MR/ALPHA ONE - 2.5L GM 153 I/L4 1987-1989
120 HP/2.5L140 HP/3.0L R/MR/ALPHA ONE - 3.0L GM 181 I/L4 1987-1989
120/140 (1.98 RATIO) 165 (1.65 RATIO) 470/485 (1.84 RATIO) 260/898/228 (1.50 RATIO) - 120/140 1978-1982
120/140 (1.98 RATIO) 165 (1.65 RATIO) 470/485 (1.84 RATIO) 260/898/228 (1.50 RATIO) - 165 1978-1981
120/140 (1.98 RATIO) 165 (1.65 RATIO) 470/485 (1.84 RATIO) 260/898/228 (1.50 RATIO) - 228 1978-1982
120/140 (1.98 RATIO) 165 (1.65 RATIO) 470/485 (1.84 RATIO) 260/898/228 (1.50 RATIO) - 470 1978-1982
120/140 (1.98 RATIO) 165 (1.65 RATIO) 470/485 (1.84 RATIO) 260/898/228 (1.50 RATIO) - 485 1980-1982
120/140 (1.98 RATIO) 165 (1.65 RATIO) 470/485 (1.84 RATIO) 260/898/228 (1.50 RATIO) - 898 1978-1982
120/140/165 STERN DRIVE - 120/140 1970-1977
120/140/165 STERN DRIVE - 165 1970-1977
135 / 150 / 175 200(2.5L) XR4/MAGNUM II - MAGNUM II
135 / 150 / 175 200(2.5L) XR4/MAGNUM II - V-175
135 / 150 / 175 200(2.5L) XR4/MAGNUM II - V-200 (2.5L) 1991 ONLY
135 / 150 / 175 200(2.5L) XR4/MAGNUM II - XR-4
135 HP/ 150 HP (V-6) - V-135
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - 140 JET
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - MAGNUM III
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - V-135
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - V-140 (INTERNATIONAL)
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - V-150
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - V-200
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - XR-6
135/150 DFI (2.5L) - V-135 DFI (2.5L)
135/150 HP (V-6) - V-135
135/150/175 DFI (2.5L) - 110 Jet (2.5L)
135/150/175 DFI (2.5L) - V-175 DFI (2.5L)
135/150/175/200 XR6 MAGNUM III 105-140 JET - 105 JET
135/150/175/200 XR6 MAGNUM III 105-140 JET - 140 JET
135/150/175/200 XR6 MAGNUM III 105-140 JET - MAGNUM III
135/150/175/200 XR6 MAGNUM III 105-140 JET - V-150
135/150/175/200 XR6 MAGNUM III 105-140 JET - V-175
135/150/175/200 XR6 MAGNUM III 105-140 JET - V-200
135/150/175/200 XR6 MAGNUM III 105-140 JET - XR-6
135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - 140 JET
135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - MAGNUM III
135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - V-150
135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - V-175
135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - V-200
135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - XR-6
135/150/175/200/XR6/MAGNUM III - 105 JET
135/150/175/200/XR6/MAGNUM III - 140 JET
135/150/175/200/XR6/MAGNUM III - MAGNUM III
135/150/175/200/XR6/MAGNUM III - V-150
135/150/175/200/XR6/MAGNUM III - V-175
135/150/175/200/XR6/MAGNUM III - XR-6
140 HORSEPOWER - 140
150 / 175 / 200 XRI - V-150 (MAG/EFI)
150 / 175 / 200 XRI - V-150XRI (EFI)
150 / 175 / 200 XRI - V-175 (SKI)
150 HP XR-2 MARATHON MAGNUM (V-6) (1978-1985 COMBINED BOOK) - V-150 Magnum
150 HP XR-2 MARATHON MAGNUM (V-6) (1978-1985 COMBINED BOOK) - V-150 Marathon
150 HP XR-2 MARATHON MAGNUM (V-6) (1978-1985 COMBINED BOOK) - V-150 Work
150 HP XR-2 MARATHON MAGNUM (V-6) (1978-1985 COMBINED BOOK) - V-1500
150 HP XR-2 MARATHON MAGNUM (V-6) (1978-1985 COMBINED BOOK) - V-150-XR-2
150 PRO XS (2.5L) - 150 Pro XS (2.5L)
150/175/200 EFI - V-150 (EFI)
150/175/200 EFI - V-175 (EFI)
150/175/200 EFI (2.5L) - V-150 EFI (2.5L)
150/200 EFI (2.5L) - V-150 EFI (2.5L)
150/200 EFI PROMAX/SUPERMAGNUM - 150/200 EFI PRO MAX/SUPER MAG
150/200 PRO-MAX/SUPER MAGNUM (EFI) - 150 EFI PRO MAX/SUPER MAG
1500XS - 1500XS
175 HP (V-6) - V-175
175 HP V-6 (1976-1988 COMBINED BOOKS) - V-175
175 PROXS (2.5L) - 175 PROXS (2.5L)
175 SKI (EFI) - V-175 (SKI)
175 SKI (EFI) (V-6) - V-175 (SKI)
175 XRI /175 MAGNUM 200 XRI (EFI) - V-175 (MAG/EFI)
175 XRI /175 MAGNUM 200 XRI (EFI) - V-175XRI (EFI)
175 XRI /175 MAGNUM 200 XRI (EFI) - V-200XRI (EFI)
200 EFI PROMAX/SUPERMAGNUM - 200 EFI PRO MAX/SUPER MAG
200 HP (V-6) - V-200
200 HP (V-6) (1978-1988 COMBINED BOOKS) - V-200
200 XRI (EFI) (V-6) - V-200 (EFI)
200/5.0L/LX 260/5.7L 350 MAG ALPHA/BRAVO - 200 (2 BBL.) GM 305 V-8 1987
200/5.0L/LX 260/5.7L 350 MAG ALPHA/BRAVO - 260 GM 350 V-8 1987
200/5.0L/LX 260/5.7L 350 MAG ALPHA/BRAVO - 350 MAG. ALPHA GM 350 V-8 1987-1995
200/5.0L/LX 260/5.7L 350 MAG ALPHA/BRAVO - 5.0LX (4 BBL.) GM 305 V-8 1988-1995
200/5.0L/LX 260/5.7L 350 MAG ALPHA/BRAVO - 5.7L GM 350 V-8 1988-1995
200XS DFI (2.5L) - 200XS DFI (2.5L)
200XS DFI (2.5L) ROS - 200XS DFI (2.5L) ROS
200XS SST - 200XS SST
220 HP (V-6) - V-220
225 (EFI) PRO-MAX/SUPER MAGNUM - 225 EFI PRO MAX/SUPER MAG
225 EFI PROMAX/SUPERMAGNUM - 225 EFI PRO MAX/SUPER MAG
225-S/233 (1.32 RATIO) STERN DRIVE - 225-S 1974
225-S/233 (1.32 RATIO) STERN DRIVE - 233 1975-1977
225X EFI PROMAX - 225X EFI PROMAX
228 ENGINE (G.M.) - 228 (4 BBL.) GM 305 V-8 1979-1982
228 ENGINE (G.M.) - 228 MIE (4 BBL.) GM 305 V-8 1979-1980
250/275 HP - 250/275
260 ENGINE (G.M.) - 260 (4 BBL.) GM 350 V-8 1978-1982
1A-1B-1C (E-Z SHIFT) - IA/IB/IC (EZ-SHIFT) 1965-1966
1A-1B-1C STERN DRIVES - IA/IB/IC 1964
2.4 L (CARB) - MERC/MAR 2.4L (CARB)
2.4L (EFI) BASS/OFFSHORE - MERC/MAR 2.4L (EFI)
2.4L EFI / 2.4L EFI OFFSHORE - MERC/MAR 2.4L (EFI)
2.5 L (CARB) - MERC/MAR 2.5L (CARB)
2.5L (CARB) - MERC/MAR 2.5L (CARB)
2.5L EFI 2.5L EFI OFFSHORE - MERC/MAR 2.5L (EFI)
2.5L EFI 2.5L EFI OFFSHORE - MERC/MAR 2.5L (EFI)/(EFI-OFFSHORE)
2.5L/2.5L OFFSHORE EFI - 2.5L (EFI)/(EFI-OFFSHORE)
215H AND 215E STERN DRIVE - 215E 1970-1972
215H AND 215E STERN DRIVE - 215H 1970
3.4 LITRE - 300 (3.4 LITRE)
450 HP (454 CID) 7.4L ENGINE - 450 (GEN. V) GM 454 V-8 1995-1996
465 HP ENGINE - 465 (GEN. V) GM 502 V-8 1992-1994
470 STERN DRIVE - 470 1976-1977
5.7L/LX 350 MAG ALPHA/BRAVO - 350 MAG. ALPHA (4 BBL.) GM 350 V-8 1996
5.7L/LX 350 MAG ALPHA/BRAVO - 5.7LX (4 BBL) GM 350 V-8 1996
50/60 HP (3 CYLINDER) - 60 (3 CYL.)
500 BULLDOG - 500 Bulldog
500 BULLDOG - 500 Bulldog 1999-2001
500 EFI - 500 EFI
500 HP 8.2L (502 CI) ENGINE - 500 (GEN. V) GM 502 V-8 1994-1995
525 EFI - 525 EFI
525 HP ENGINE - 525 SC (GEN. V) GM 454 V-8 1992-1995
525 HP ENGINE - 525 SC (GEN. V) GM 454 V-8 1996
525 SC - GEN VI - 525 SC - Gen VI
565 EFI - 565 EFI
575 SCI - 575 SCi
600 SCI - 600 SCi
650-4 ENGINE - 650 (4 CYL.)
888 STERN DRIVE (1.50) RATIO - 888 1971-1977
898 (1.50 RATIO) 1228 (1.50 RATIO) 1250 (1.32 RATIO) - 250 1977
898 (1.50 RATIO) 1228 (1.50 RATIO) 1250 (1.32 RATIO) - 898/228 1977
898 (STERN DRIVE) 198 (INBOARD) ENGINE - 198 MIE (2 BBL.) GM 305 V-8 1977
898/200/228/230/260 HP R/MR/ALPHA ONE - 200 (2 BBL.) GM 305 V-81 1985-1986
898/200/228/230/260 HP R/MR/ALPHA ONE - 260 (4 BBL.) GM 305 V-8 1982-1986
898/200/228/230/260 HP R/MR/ALPHA ONE - 898 (2 BBL.) GM 305 V-8 1983-1984
ACCESSORIES MERCRUISER VOLUME I - Exhaust / Cooling Systems and Extension Kits
ACCESSORIES MERCRUISER VOLUME I - Fuel/Oil Tanks, Lines, Filter Kits and Corrosion
ACCESSORIES MERCRUISER VOLUME I - Power Steering/Tiller Handles/ Shift Kits
ALPHA ONE GEN II STERNDRIVE AND TRANSOM ASSEMBLY - ALPHA ONE (GEN.II) 1991-1995
ALPHA-ONE SS, II SSM, III, III SSM, IIIA SSM, IV SSM, V SSM - ALPHA ONE SS 1986-1989
ALPHA-ONE SS, II SSM, III, III SSM, IIIA SSM, IV SSM, V SSM - SSM II/III/IV/V 1982-1995
BRAVO I/II/III STERNDRIVE AND TRANSOM ASSEMBLY - BRAVO ONE
BRAVO I/II/III STERNDRIVE AND TRANSOM ASSEMBLY - BRAVO THREE
BRAVO I/II/III STERNDRIVE AND TRANSOM ASSEMBLY - BRAVO TWO
EXHAUST/COOLING SYSTEMS AND EXTENSION KITS - Exhaust / Cooling Systems and Extension Kits
HP 500 (502 CID) - 500 (GEN. V) GM 502 V-8 1996
HP 500 BULLDOG (540 CID) - 500 Bulldog GM 540 V-8 1990-1996
II STERN DRIVE (1.78:1 GEAR RATIO) - II (1.78:1) 1968-1969
K20-140-160 STERN DRIVE - 120/140 1967-1969
K20-140-160 STERN DRIVE - 160 1967-1969
MARINER 115 - 115 (6 CYL.)
MARINER 70 - 70
MARINER 80 - 80
MARINER 85 - 85
MARINER 90 - 90 (6 CYL.)
MARK 35A MERC 300/350 - 300 350
MARK 35A MERC 300/350 - MARK 35A
MARK 55 - MARK 55, 55E
MARK 58, MARK 55A, MARK 58A - MARK 55AE, 55AM, 58AE, 58E
MERC 1000 - 1000SS
MERC 1000E - 1000
MERC 1000E-2 - 1000
MERC 110 - 110
MERC 1100 - 1100
MERC 115 - 115 (6 CYL.)
MERC 115 - 1150, 115
MERC 1150 - 1150
MERC 1150E-SS - 1150
MERC 1250 - 1250
MERC 1350 - 1350
MERC 140 - 140
MERC 140 - 1400, 140
MERC 1400EL-SS - 1400
MERC 1500 - 1500
MERC 3.4L EFI - MERC 3.4 (EFI)
MERC 350 - 350
MERC 40 - 40 (1 CYL.)
MERC 40 - 402, 40 (2 CYL.)
MERC 400 - 400
MERC 400 - 400 (2 CYL.)
MERC 402 - 402
MERC 450/500 - 450 (4 CYL.)
MERC 450/500 - 500
MERC 50 - 500, 50
MERC 500 - 500
MERC 500-6 - 500
MERC 500-7/8 - 500
MERC 60 - 60
MERC 650 - 650 (4 CYL.)
MERC 650 (3 CYLINDER) - 650 (3 CYL.)
MERC 650E - 650 (3 CYL.)
MERC 70 (3 CYLINDER) - 70 (3 CYL.)
MERC 700-1/2 - 700 (6 CYL.)
MERC 75 - 75
MERC 80 - 800 (4 CYL. ), 80 (4 CYL.)
MERC 80 - 800 (4 CYL.), 80 (4 CYL.)
MERC 800 - 800 (6 CYL.)
MERC 800E - 800 (4 CYL.), 80 (4 CYL.)
MERC 850 - 850 (4 CYL.)
MERC 850 (4 CYLINDER) - 850 (4 CYL.)
MERC 850E - 850 (6 CYL.)
MERC 90 - 90 (6 CYL.)
MERC 90 - 900, 90
MERC 900E - 900 (6 CYL.)
MERC 950 - 950 (6 CYL.)
MERC V-225 - V-225
MERCRUISER I STERN DRIVE UNIT - I 1963
MERCURY 70 - 70 (3 CYL.)
MOD - VP (EFI) - MERC MOD-VP (EFI)
MOD-VP - MERC MOD-VP
R/MR ALPHA ONE STERNDRIVE - R/MR/ALPHA ONE (Sterndrive) 1983-1990
R/MR ALPHA ONE STERNDRIVE - R/MR/ALPHA ONE (Transom Assembly) 1983-1990
TR (200 RATIO) TRS (1.50 RATIO) STERN DRIVE - TR/TRS 1977-1993
XR-2 - MERC XR2
XR-2 MAGNUM - MERC/MAR XR2/MAGNUM
XR-4/MAGNUM II - MAGNUM II
XR-4/MAGNUM II - XR-4