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1985 Honda CB650SC Nighthawk Petcocks & Tank Parts

Check the fitted tank and fuel valve before ordering for your 1985 CB650SC. Choose between replacing the petcock and renewing its service parts, then inspect the front tank cushions while access is clear. Modified tanks need their own connection check.

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Most orders ship same or next business day Fitment guarantee Listed for your exact model and year? We’ll make it right if it doesn’t fit as described. Mechanic-backed support Ask our team for help choosing the right Honda CB part.
Currently viewing Gas Tanks, Caps, Petcocks & Parts

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Choose your model and year to see parts listed for your bike.

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Honda CB650SC CB550SC fuel petcock 16950-MA6-035

1983-85 Honda CB650SC / CB550SC Fuel Petcock ~ Replaces 16950-MA6-035

$54.95 USD
33-0010
1983 Honda CB550SC Nighthawk Motorcycle Parts 1983 Honda CB650SC Nighthawk Motorcycle Parts 1984 Honda CB650SC Nighthawk Motorcycle Parts 1985 Honda CB650SC Nighthawk Motorcycle Parts Honda CB Fuel System & Carburetor Parts Honda CB Gas Tanks, Fuel Caps & Petcocks Honda CB550 Motorcycle Parts by Model & Year Honda CB550SC Nighthawk Motorcycle Parts (1983–1984) Honda CB650 Motorcycle Parts by Model & Year Honda CB650SC Nighthawk Motorcycle Parts (1982–1985) New Items Series 5: CB650 (79-82) Series 6: CB500-CB550 (71-78)
Keep fuel flowing reliably to your carburetors with this Fuel Petcock, designed as a direct replacement for several original Honda fuel valve assemblies. This...
Honda CB front fuel tank rubber cushion 17611-KE8-000

Front Fuel Tank Rubber Cushion ~ Replaces Honda OEM 17611-KE8-000

$5.50 USD
27-5520
1968 Honda CB350K0 Motorcycle Parts 1969 Honda CB350K1 Motorcycle Parts 1970 Honda CB350K2 Motorcycle Parts 1971 Honda CB350K3 Motorcycle Parts 1972 Honda CB350F0 Motorcycle Parts 1972 Honda CB350K4 Motorcycle Parts 1973 Honda CB350F0 Motorcycle Parts 1973 Honda CB350G Motorcycle Parts 1974 Honda CB350F1 Motorcycle Parts 1974 Honda CB360K0 Motorcycle Parts 1975 Honda CB360T Motorcycle Parts 1975 Honda CB400F Motorcycle Parts 1976 Honda CB360T Motorcycle Parts 1976 Honda CB400F Motorcycle Parts 1977 Honda CB400F Motorcycle Parts 1978 Honda CB400A Motorcycle Parts 1978 Honda CB400TI Motorcycle Parts 1978 Honda CB400TII Motorcycle Parts 1979 Honda CB400TIIZ Motorcycle Parts 1979 Honda CB400TIZ Motorcycle Parts 1979 Honda CB650 Motorcycle Parts 1980 Honda CB400TA Motorcycle Parts 1980 Honda CB650 Motorcycle Parts 1980 Honda CB650C Custom Motorcycle Parts 1981 Honda CB400TB Motorcycle Parts 1981 Honda CB650 Motorcycle Parts 1981 Honda CB650C Custom Motorcycle Parts 1982 Honda CB450T Hawk Motorcycle Parts 1982 Honda CB650 Motorcycle Parts 1983 Honda CB550SC Nighthawk Motorcycle Parts 1983 Honda CB650SC Nighthawk Motorcycle Parts 1984 Honda CB125S Motorcycle Parts 1984 Honda CB650SC Nighthawk Motorcycle Parts 1984 Honda CB700SC Motorcycle Parts 1985 Honda CB125S Motorcycle Parts 1985 Honda CB650SC Nighthawk Motorcycle Parts 1985 Honda CB700SC Motorcycle Parts 1986 Honda CB700SC Motorcycle Parts Honda CB Frame & Body Parts Honda CB Fuel System & Carburetor Parts Honda CB Gas Tanks, Fuel Caps & Petcocks Honda CB Rubber Components & Mounting Dampers Honda CB125 Motorcycle Parts by Model & Year Honda CB125S Motorcycle Parts (1973–1985) Honda CB350 Motorcycle Parts by Model & Year Honda CB350F Motorcycle Parts (1972–1974) Honda CB350K Motorcycle Parts (1968–1972) Honda CB360 Motorcycle Parts by Model & Year Honda CB360T Motorcycle Parts (1975–1976) Honda CB400 Motorcycle Parts by Model & Year Honda CB400F Motorcycle Parts (1975–1977) Honda CB400T Hawk Motorcycle Parts (1978–1981) Honda CB450 Motorcycle Parts by Model & Year Honda CB550 Motorcycle Parts by Model & Year Honda CB550SC Nighthawk Motorcycle Parts (1983–1984) Honda CB650 Motorcycle Parts (1979–1982) Honda CB650 Motorcycle Parts by Model & Year Honda CB650C Custom Motorcycle Parts (1980–1981) Honda CB650SC Nighthawk Motorcycle Parts (1982–1985) Honda CB700SC Nighthawk Motorcycle Parts (1984–1986) Series 10: CB72-CB250 (59-85) Series 3: CB700-750SC (82-86) Series 5: CB650 (79-82) Series 6: CB500-CB550 (71-78) Series 7: CB400-CB450 (65-86) Series 8: CB350-CB400 (72-77) Series 9: CB350-CB360 (69-75)
This aftermarket front fuel tank rubber cushion replaces Honda OEM 17611-KE8-000 on the listed Honda CB-series applications. It mounts to the frame and supports...
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Honda CB700 CB650 CB550 CB450 fuel petcock repair kit

Honda CB700 / CB650 / CB550 / CB450 Fuel Petcock Repair Kit

$27.95 USD
20-0020
1983 Honda CB550SC Nighthawk Motorcycle Parts 1983 Honda CB650SC Nighthawk Motorcycle Parts 1984 Honda CB650SC Nighthawk Motorcycle Parts 1984 Honda CB700SC Motorcycle Parts 1985 Honda CB450SC Nighthawk Motorcycle Parts 1985 Honda CB650SC Nighthawk Motorcycle Parts 1985 Honda CB700SC Motorcycle Parts 1986 Honda CB450SC Nighthawk Motorcycle Parts 1986 Honda CB700SC Motorcycle Parts Honda CB Fuel System & Carburetor Parts Honda CB Gas Tanks, Fuel Caps & Petcocks Honda CB450 Motorcycle Parts by Model & Year Honda CB450SC Nighthawk Motorcycle Parts (1982–1986) Honda CB550 Motorcycle Parts by Model & Year Honda CB550SC Nighthawk Motorcycle Parts (1983–1984) Honda CB650 Motorcycle Parts by Model & Year Honda CB650SC Nighthawk Motorcycle Parts (1982–1985) Honda CB700SC Nighthawk Motorcycle Parts (1984–1986) Series 3: CB700-750SC (82-86) Series 5: CB650 (79-82) Series 6: CB500-CB550 (71-78) Series 7: CB400-CB450 (65-86)
Rebuild your Nighthawk fuel petcock with this Fuel Petcock Repair Kit. Includes a diaphragm, spring, and 2 O-rings.Key Features• Fuel petcock repair kit• Includes...
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1985 Honda CB650SC Nighthawk · Petcocks & Tank Mounts Buying guide

Identify the valve and tank mounts before ordering

Compare the fuel valve actually fitted with the replacement and repair-kit applications. Inspect the tank mounting rubber as a separate repair decision, particularly if the tank has been changed.

Parts to consider

1983-85 Honda CB650SC / CB550SC Fuel Petcock ~ Replaces 16950-MA6-035 Replacement fuel petcockPetcock specified for the CB650SC 1983–85 Nighthawk application.View part Honda CB700 / CB650 / CB550 / CB450 Fuel Petcock Repair Kit Petcock repair kitPetcock service kit for the listed Nighthawk fuel-valve application.View part Front Fuel Tank Rubber Cushion ~ Replaces Honda OEM 17611-KE8-000 Front tank rubber cushionAftermarket replacement for reference 17611-KE8-000, sold individually.View part

Match the replacement valve by reference

The replacement petcock lists 16950-MA6-035, 16950-MA6-025, 16950-ME5-005 and 16950-ME5-015. Compare those references with the valve and tank actually fitted before choosing the assembly.

Check the repair-kit inventory against the fault

The repair kit lists a diaphragm, spring and two O-rings. Compare that inventory with the parts needed after inspecting the valve; confirm any other essential component rather than assuming the list covers every repair.

Ordering questions

Is a tank connection thread specified for the replacement petcock?

The available specification does not establish a thread measurement. Compare the actual tank connection or have it confirmed before ordering for a modified or uncertain tank.

Will the repair kit fit a petcock that was replaced previously?

Confirm the identity of the valve and the kit application first. Both products list this motorcycle, but the descriptions do not establish that kit 20-0020 rebuilds the listed replacement valve or an unidentified aftermarket valve.

When should I replace the front tank cushions?

The cushion listing identifies cracked, flattened, missing or age-hardened rubber as reasons for replacement. Compare the existing mount shape and reference, especially with a changed tank, then order the individually supplied cushions needed.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

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