Genuine Mercury aluminum anode and trim fin. The trim fin fits most Mercury and Mariner engines 35 horsepower and up *. It also fits all MerCruiser drives (except Bravo drives) .
The trim plate corrects the propeller torque and also acts as a sacrificial anode . Replace the sacrificial anodes in time to maintain corrosion protection. Sacrificial anodes are made of a baser metal than the drive unit, which is why they corrode first, thus protecting the boat from the harmful effects of water. A general rule of thumb is to replace the anode when about half of the material has worn away due to corrosion. However, the trim plate also has a steering function, so it should always be intact .
* Mercury 40–60 EFI: This trim plate only fits engines with a large gear case ( 2.31:1 ratio). Alternative trim plate: 82115 .
OEM number: 31640T4
Previous OEM numbers: 31640Q4, 316404, 316403
35 HP
35 (2 CYL.): B110789 ?
35 (2 CYL.): 209608 ?
35 (2 CYL.): 6445653 – OB110788
35 (2 CYL.): 9384476 ?
50 HP
50 (3 CYL.): 6428681 – OB122929
50 (3 CYL.): 7208333 – 0A721307
50 (3 CYL.): 9385911 – 9469199
50 (3 CYL.): 9469200 – 9683054
50 (3 CYL.): 0A721308 ?
50 (3 CYL.): 0B122930 – OD000749
50 (3 CYL.): 9683055 – 9885344
50 (3 CYL.): 0D000750 – OG290584
55 HP
55 (3 CYL.): 9741042 – 9885344
55 (3 CYL.): 0D000750 – OG290584
60 HP
60 (3 CYL.): 6428681 – OB122929
60 (3 CYL.): 7208333 – 0A721307
60 (3 CYL.): 9385911 – 9469199
60 (3 CYL.): 9469200 – 9683054
60 (3 CYL.): 0A721308 ?
60 (3 CYL.): 0B122930 – OD000749
60 (3 CYL.): 9683055 – 9885344
60 (3 CYL.): 0D000750 – OG290584
70 HP
70 (3 CYL.): 9483121 – 9506480
70 (3 CYL.): 0A996142 – OB240450
70 (3 CYL.): 9506481 – 9589038
70 (3 CYL.): 0B240451 – OC221999
75 HP
75 (3 CYL.): 9483121 – 9506480
75 (3 CYL.): 0A996142 – OB240450
75 (3 CYL.): 9506481 – 9589038
75 (3 CYL.): 0B240451 – OC221999
75 (4 CYL.): 6432901 ?
75 (4 CYL.): 7208573 ?
75 (4 CYL.): 9393856 ?
80 HP
80 (3 CYL.): 9483121 – 9506480
80 (3 CYL.): 0A996142 – OB240450
80 (3 CYL.): 9506481 – 9589038
80 (3 CYL.): 0B240451 – OC221999
90 HP
90 (3 CYL.): 9483121 – 9506480
90 (3 CYL.): 0A996142 – OB240450
90 (3 CYL.): 9506481 – 9589038
90 (3 CYL.): 0B240451 – OC221999
90 / 900 (6 CYL.): 6436123 ?
90 / 900 (6 CYL.): 7208848 ?
100 HP
100 (4 CYL.): 9793577 – OP016999
100 (4 CYL.): 0D283222 – OG760299
105 HP
105 JET: 0D082000 – OG303045
115 HP
115 (4 CYL.): 9793577 – OP016999
115 (4 CYL.): 0D283222 – 0G760299
115 (6 CYL.): 5600967 – 6436122
115 (6 CYL.): 7147988 – 7208847
115 (6 CYL.): 8067340 ?
125 HP
125 (4 CYL.): 9793577 – OP016999
125 (4 CYL.): 0D283222 – OG760299
135 HP
V-135: 0A904646 – OC100860
V-135: 0C100861 – OC239552
V-135: 0C239553 – OD081999
V-135: 0D082000 – OG303045
140 HP
140 JET: 0D082000 – OG303045
150 HP
V-150: 0A904646 – OC100860
V-150: 0C100861 – OC239552
V-150: 0C239553 – OD081999
V-150: 0D082000 – OG303045
V-150-XR-2: 4868998 – 0A904645
V-150 Magnum / Marathon: 5600162 – 0A904645
V-150 Work / V-1500: 4868998 – 0A904645
V-150 (MAG/EFI): 0D082000 – OG303045
V-150XRI (EFI): 0D082000 – OG303045
175 HP
V-175: 4301235 – OC100860
V-175: 8058870 ?
V-175 MAGNUM / XRI (EFI): 0D000750 – OD081999
V-175 (SKI) / (MAG/EFI) / XRI (EFI): 0D082000 – OG303045
200 HP
V-200: 5239232 – OC100860
V-200: 0C100861 – OC291519
V-200 (EFI): 0C100861 – OC999999
V-200 (2.5L) 1991 only: 0C291520 – OD081999
V-200 (MAG/EFI): 0D082000 – OG303045
V-200XRI (EFI): OC291520 – OD081999 / 0D082000 – OG303045
220 HP
V-220 Laser: 0B117316 ?
Genuine Mercury aluminum anode and trim fin. The trim fin fits most Mercury and Mariner engines 35 horsepower and up *. It also fits all MerCruiser drives (except Bravo drives) .
The trim plate corrects the propeller torque and also acts as a sacrificial anode . Replace the sacrificial anodes in time to maintain corrosion protection. Sacrificial anodes are made of a baser metal than the drive unit, which is why they corrode first, thus protecting the boat from the harmful effects of water. A general rule of thumb is to replace the anode when about half of the material has worn away due to corrosion. However, the trim plate also has a steering function, so it should always be intact .
* Mercury 40–60 EFI: This trim plate only fits engines with a large gear case ( 2.31:1 ratio). Alternative trim plate: 82115 .
OEM number: 31640T4
Previous OEM numbers: 31640Q4, 316404, 316403
35 HP
35 (2 CYL.): B110789 ?
35 (2 CYL.): 209608 ?
35 (2 CYL.): 6445653 – OB110788
35 (2 CYL.): 9384476 ?
50 HP
50 (3 CYL.): 6428681 – OB122929
50 (3 CYL.): 7208333 – 0A721307
50 (3 CYL.): 9385911 – 9469199
50 (3 CYL.): 9469200 – 9683054
50 (3 CYL.): 0A721308 ?
50 (3 CYL.): 0B122930 – OD000749
50 (3 CYL.): 9683055 – 9885344
50 (3 CYL.): 0D000750 – OG290584
55 HP
55 (3 CYL.): 9741042 – 9885344
55 (3 CYL.): 0D000750 – OG290584
60 HP
60 (3 CYL.): 6428681 – OB122929
60 (3 CYL.): 7208333 – 0A721307
60 (3 CYL.): 9385911 – 9469199
60 (3 CYL.): 9469200 – 9683054
60 (3 CYL.): 0A721308 ?
60 (3 CYL.): 0B122930 – OD000749
60 (3 CYL.): 9683055 – 9885344
60 (3 CYL.): 0D000750 – OG290584
70 HP
70 (3 CYL.): 9483121 – 9506480
70 (3 CYL.): 0A996142 – OB240450
70 (3 CYL.): 9506481 – 9589038
70 (3 CYL.): 0B240451 – OC221999
75 HP
75 (3 CYL.): 9483121 – 9506480
75 (3 CYL.): 0A996142 – OB240450
75 (3 CYL.): 9506481 – 9589038
75 (3 CYL.): 0B240451 – OC221999
75 (4 CYL.): 6432901 ?
75 (4 CYL.): 7208573 ?
75 (4 CYL.): 9393856 ?
80 HP
80 (3 CYL.): 9483121 – 9506480
80 (3 CYL.): 0A996142 – OB240450
80 (3 CYL.): 9506481 – 9589038
80 (3 CYL.): 0B240451 – OC221999
90 HP
90 (3 CYL.): 9483121 – 9506480
90 (3 CYL.): 0A996142 – OB240450
90 (3 CYL.): 9506481 – 9589038
90 (3 CYL.): 0B240451 – OC221999
90 / 900 (6 CYL.): 6436123 ?
90 / 900 (6 CYL.): 7208848 ?
100 HP
100 (4 CYL.): 9793577 – OP016999
100 (4 CYL.): 0D283222 – OG760299
105 HP
105 JET: 0D082000 – OG303045
115 HP
115 (4 CYL.): 9793577 – OP016999
115 (4 CYL.): 0D283222 – 0G760299
115 (6 CYL.): 5600967 – 6436122
115 (6 CYL.): 7147988 – 7208847
115 (6 CYL.): 8067340 ?
125 HP
125 (4 CYL.): 9793577 – OP016999
125 (4 CYL.): 0D283222 – OG760299
135 HP
V-135: 0A904646 – OC100860
V-135: 0C100861 – OC239552
V-135: 0C239553 – OD081999
V-135: 0D082000 – OG303045
140 HP
140 JET: 0D082000 – OG303045
150 HP
V-150: 0A904646 – OC100860
V-150: 0C100861 – OC239552
V-150: 0C239553 – OD081999
V-150: 0D082000 – OG303045
V-150-XR-2: 4868998 – 0A904645
V-150 Magnum / Marathon: 5600162 – 0A904645
V-150 Work / V-1500: 4868998 – 0A904645
V-150 (MAG/EFI): 0D082000 – OG303045
V-150XRI (EFI): 0D082000 – OG303045
175 HP
V-175: 4301235 – OC100860
V-175: 8058870 ?
V-175 MAGNUM / XRI (EFI): 0D000750 – OD081999
V-175 (SKI) / (MAG/EFI) / XRI (EFI): 0D082000 – OG303045
200 HP
V-200: 5239232 – OC100860
V-200: 0C100861 – OC291519
V-200 (EFI): 0C100861 – OC999999
V-200 (2.5L) 1991 only: 0C291520 – OD081999
V-200 (MAG/EFI): 0D082000 – OG303045
V-200XRI (EFI): OC291520 – OD081999 / 0D082000 – OG303045
220 HP
V-220 Laser: 0B117316 ?