Mercury 12-20086 Genuine OEM SternDrive Marine Engine Steering Adaptor Screw Washer

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  • Regular price $4.95
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  • Genuine Mercury Quicksilver Parts
  • SternDrive Marine Engine Steering Adaptor Screw Washer
  • Size: .390 x .620 x .06
  • Manufacturer: Mercury, Mariner, Quicksilver, MerCruiser
  • Part Number: 12-20086
  • Also Known As: 1220086, 12-48679, 12-20413
  • For use with:
420 / 425 - 420 GM 454 V-8 1987-1989 ACCESSORIES MERCRUISER VOLUME I - Exhaust / Cooling Systems and Extension Kits
MERC 700 - 700 (6 CYL.) 120 ENGINE - 120 GM 153 I/L4 1979-1982
120/140/165 STERN DRIVE - 120/140 1970-1977 MERC 1100 - 1100
80 ENGINE AND 80 STERNDRIVE - 80 (Sterndrive) 1966-1969 MERC 1400EL-SS - 1400
120/140 (1.98 RATIO) 165 (1.65 RATIO) 470/485 (1.84 RATIO) 260/898/228 (1.50 RATIO) - 120/140 1978-1982 600 SC BOBTAIL - 600 SC Bobtail 1998
60 RENAULTMERCRUISER "0" DRIVE UNIT - 60 RENAULT 68 I/L4 1965-1968 650-4 ENGINE - 650 (4 CYL.)
225-S/233 (1.32 RATIO) STERN DRIVE - 225-S 1974 90 ENGINE AND STERNDRIVE - 90 (Sterndrive) 1970-1972
MARK 78, MARK 75A, MARK 78A - MARK 75A, 78, 78A 320 HP E.F.I ALPHA ONE ENGINE - 320 (EFI) GM 350 V-8 1987
ACCESSORIES MERCRUISER VOLUME I - Power Steering/Tiller Handles/ Shift Kits 60 RENAULTMERCRUISER "0" DRIVE UNIT - 0 (Sterndrive) 1965-1966
MERC 900E - 900 (6 CYL.) 120/140 (1.98 RATIO) 165 (1.65 RATIO) 470/485 (1.84 RATIO) 260/898/228 (1.50 RATIO) - 228 1978-1982
R/MR ALPHA ONE STERNDRIVE - R/MR/ALPHA ONE (Transom Assembly) 1983-1990 K20-140-160 STERN DRIVE - 120/140 1967-1969
500 HP 8.2L (502 CI) ENGINE - 500 (GEN. V) GM 502 V-8 1994-1995 MERC 650 - 650 (4 CYL.)
HP 500 BULLDOG (540 CID) - 500 Bulldog GM 540 V-8 1990-1996 898 (1.50 RATIO) 1228 (1.50 RATIO) 1250 (1.32 RATIO) - 250 1977
230 HP/5.0L 260 HP/5.7L ENGINE - 5.0L MIE (4 BBL.) GM 305 V-8 1987-1995 MERC 1350 - 1350
KF9, KG9, MARK 40 - MARK 40, KG9, KF9 TR (200 RATIO) TRS (1.50 RATIO) STERN DRIVE - TR/TRS 1977-1993
575 HP ENGINE (CARD 54) - 575 GM 540 V-8 1986-1992 ACCESSORIES MERCRUISER VOLUME I - Fuel/Oil Tanks, Lines, Filter Kits and Corrosion
II TR STERN DRIVE (2.00 RATIO) - II-TR 1973-1976 ALPHA ONE GEN II STERNDRIVE AND TRANSOM ASSEMBLY - ALPHA ONE (GEN.II) 1991-1995
MERC 3.4L EFI - MERC 3.4 (EFI) 300 TEMPEST (MR/TR) ENGINE - 300 TEMPEST GM 350 V-8 1985-1986
900 SC - 900 SC 1997-1999 255/280 TRS - 255-TRS 1973-1974
800 SC ENGINE - 800 SC (GEN. V) GM 572 V-8 1993-1998 MERC 600, 600 EL - 600 (6 CYL.)
215H AND 215E STERN DRIVE - 215H 1970 MERCRUISER SEC K POWER STEERING - Power Steering/Tiller Handles/ Shift Kits
25 XS - MERC 25XS MERC 1150E-SS - 1150
470 STERN DRIVE - 470 1976-1977 420 / 425 - 425 (GEN. V) GM 454 V-8 1992-1993
MERC 1000E-2 - 1000 215H AND 215E STERN DRIVE - 215E 1970-1972
120/140/165 STERN DRIVE - 165 1970-1977 MERC 1000 - 1000SS
BRAVO I/II/III STERNDRIVE AND TRANSOM ASSEMBLY - BRAVO TWO OUTBOARDS SEC A RIDE-GUIDE - Power Steering/Tiller Handles/ Shift Kits
898 (1.50 RATIO) 1228 (1.50 RATIO) 1250 (1.32 RATIO) - 898/228 1977 898/200/228/230/260 HP R/MR/ALPHA ONE - 898 (2 BBL.) GM 305 V-8 1983-1984
898/200/228/230/260 HP R/MR/ALPHA ONE - 260 (4 BBL.) GM 305 V-8 1982-1986 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) - 165 1978-1981 1A-1B-1C STERN DRIVES - IA/IB/IC 1964
MERC 700-1/2 - 700 (6 CYL.) MERC 1000BP - 1250BP
MERC 800E - 800 (4 CYL.), 80 (4 CYL.) MERC 1250 - 1250
MARK 75 - MARK 75 R/MR ALPHA ONE STERNDRIVE - R/MR/ALPHA ONE (Sterndrive) 1983-1990
MERCRUISER I STERN DRIVE UNIT - I 1963 MERC 850E - 850 (6 CYL.)
320 HP EFI ALPHA 1/BRAVO - 320 (EFI) GM 350 V-8 1988-1989 BRAVO I/II/III STERNDRIVE AND TRANSOM ASSEMBLY - BRAVO THREE
900 SC - DRY SUMP - 900 SC Dry Sump K20-140-160 STERN DRIVE - 160 1967-1969
BRAVO I/II/III STERNDRIVE AND TRANSOM ASSEMBLY - BRAVO ONE 230 HP/5.0L 260 HP/5.7L ENGINE - 5.7L MIE GM 350 V-8 1988-1993
600SC GEN IV & V ENGINE - 600 SC GEN IV & V GM 502 V-8 1991-1996 90 ENGINE AND STERNDRIVE - 90 RENAULT 96 I/L4 1970-1972
470 ENGINE - 470 (2 BBL.) MERCURY 224 I/L4 1980-1982 MARK 50 - MARK 50, 50E
330 ENGINE (G.M.) - 330 MIE GM 454 V-8 1977-1980 230 HP/260 HP INBOARD ENGINE (GM) - 230 MIE (4 BBL.) GM 305 V-8 1981-1986
1A-1B-1C (E-Z SHIFT) - IA/IB/IC (EZ-SHIFT) 1965-1966 898/200/228/230/260 HP R/MR/ALPHA ONE - 200 (2 BBL.) GM 305 V-81 1985-1986
255/280 TRS - 280-TRS 1975-1976 230 HP/5.0L 260 HP/5.7L ENGINE - 260 MIE GM 350 V-8 1987
900 SC - DRY SUMP - 900 SC Dry Sump 2000 OUTBOARDS SEC C STEERING HANDLES AND BARS - Power Steering/Tiller Handles/ Shift Kits
MERC 800 - 800 (6 CYL.) MERC 1000E - 1000
MERC 950 - 950 (6 CYL.) 120/140 (1.98 RATIO) 165 (1.65 RATIO) 470/485 (1.84 RATIO) 260/898/228 (1.50 RATIO) - 898 1978-1982
60 HP - 60 140 ENGINE - 140 GM 181 I/L4 1979-1982
STEERING SYSTEMS AND COMPONENTS - Steering Systems and Components 80 ENGINE AND 80 STERNDRIVE - 80 RENAULT 80 I/L4 1966-1969
MERC 1000BP /1250BP - 1000BP 120/140 (1.98 RATIO) 165 (1.65 RATIO) 470/485 (1.84 RATIO) 260/898/228 (1.50 RATIO) - 485 1980-1982
5.7 LITRE COMPETITION SKI ENGINE - 5.7L (SKI) GM 350 V-8 1985-1987 888 STERN DRIVE (1.50) RATIO - 888 1971-1977
MERCRUISER SEC A RIDE-GUIDE - Power Steering/Tiller Handles/ Shift Kits 225-S/233 (1.32 RATIO) STERN DRIVE - 233 1975-1977
MERC 1000BP - 1000BP 330 ENGINE (G.M.) - 330 GM 454 V-8 1977-1981