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1985 Honda CB650SC Nighthawk Engine Parts

Plan engine work on your 1985 CB650SC around the job you are actually doing. Routine oil service calls for different parts than opening the engine, and a valve-cover repair need not begin with an overhaul gasket set.

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Honda motorcycle parts

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Honda CB1100 CB1000 CB900 CB750 CB650 oil filter 15410-426-010

Honda CB Oil Filter ~ Replaces 15410-426-010

$7.95 USD
15-0002
Service your classic Honda with this Stock-Type Oil Filter Element (paper filter), replacing OEM #15410-426-010 / #15410-422-004. Exceptionally broad fitment covering the full SOHC...
New
Honda CB900 CB750 CB700 CB650 drain plug washer

Honda CB900/CB750/CB700/CB650 Drain Plug Washer

$1.75 USD
15-0006
Fit the smaller 12mm drain plug washer with this 12mm x 18mm x 1mm Drain Plug Crush Washer. Broad fitment across the SOHC CB750,...
Honda CB900 CB750 CB700 CB650 CB550 magnetic oil drain plug

Honda CB Magnetic Oil Drain Plug

$12.95 USD
15-0016
Fit a 12mm magnetic drain plug with this Magnetic Oil Drain Plug, 12mm diameter x M1.5, replacing OEM #92800-12000. Broad fitment across the SOHC...
Honda CB1100 CB1000 CB900 CB750 CB650 oil filter spring 15415-300-000

Honda CB Oil Filter Spring ~ Replaces 15415-300-000

$2.95 USD
15-0055
Replace the spring inside your oil filter housing with this Oil Filter Spring, replacing OEM #15415-300-000. Matches the fitment of our #15-0002 oil filter...
New
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Honda CB1100 CB1000 oil filter pack of 3 15410-426-010

Honda CB Oil Filter Pack of 3 (Volume Deal!) ~ Replaces 15410-426-010

$18.95 USD
15-0024
Keep your engine protected with this Pack of 3 Stock Type Oil Filter Elements, designed as direct replacements for the original Honda paper oil...
Honda CB Piston Pin Clips 15mm Pk/2 ~ Replaces 94601-15000

Honda CB Piston Pin Clips 15mm Pk/2 ~ Replaces 94601-15000

$1.95 USD
05-7201
Secure your piston pins with this 2-pack of 15mm Piston Pin Clips, Japanese made to superior quality and replacing OEM Ref. #94601-15000. Exceptionally broad...
Honda CB1100 CB1000 CB900 CB750 oil filter washer each 15414-300-000

Honda CB Oil Filter Washer ~ Each ~ Replaces 15414-300-000

$2.95 USD
15-0042
Oil filter washer designed to replace the original Honda component, matching OEM reference 15414-300-000. Used to create a proper seal at the oil filter...
New
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Honda CB1100 CB1000 CB900 CB750 oil filter pack of 5 15410-426-010

Honda CB Oil Filter Pack of 5 (Best Deal!) ~ Replaces 15410-426-010

$27.95 USD
15-0025
Keep your engine properly protected with this Pack of 5 Stock Type Oil Filter Elements, designed as direct replacements for the original Honda paper...
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Honda CB750 CB700 performance magnetic oil drain plug joker machine

Honda CB Performance Magnetic Oil Drain Plug ~ Joker Machine

$49.95 USD
73-1074
Catch metal debris from your engine with this Joker Machine Brand Custom Performance Magnetic Oil Drain Plug, 12mm dia x M1.5, OEM #92800-12000.The plug...
Honda CB650SC CB550SC Athena overhaul gasket set

1983-85 Honda CB650SC / CB550SC Athena Overhaul Gasket Set

$229.95 USD
18-0108
Rebuild your CB550SC or CB650SC Nighthawk engine with this Athena Overhaul Engine Gasket Set. Athena of Italy is an original-equipment supplier to Yamaha, Honda,...
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Honda CB650SC CB550SC valve cover gasket 12391-ME5-306

1983-85 Honda CB650SC / CB550SC Valve Cover Gasket ~ Replaces 12391-ME5-306

$39.95 USD
12-1023
Replace your Nighthawk valve cover gasket with this Fibre-Type Valve Cover Gasket, replacing OEM #12391-ME5-306 / #12391-ME5-000. Fits the CB650SC (1983-85) and CB550SC (1983)...
Honda CB1100 CB1000 CB700 CB650 CB550 oil pressure switch

Honda CB Oil Pressure Switch ~ Genuine Honda OEM

$69.95 USD
99-5094
Upgrade or restore your classic Honda motorcycle with this Genuine Honda Oil Pressure Switch — precision‑engineered and made in Japan. This authentic replacement part...
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1985 Honda CB650SC Nighthawk · Engine Buying guide

Build the order around the engine work

Choose a filter for maintenance, a cover gasket for a localized repair, or the Athena set for broader dismantling. Check the parts already fitted before extending the order.

Parts to consider

Honda CB Oil Filter ~ Replaces 15410-426-010 Paper oil filterStock-type paper element; replacement O-rings, springs and washers are separate.View part 1983-85 Honda CB650SC / CB550SC Valve Cover Gasket ~ Replaces 12391-ME5-306 Valve-cover gasketReplacement for Honda references 12391-ME5-306 and 12391-ME5-000, with late Nighthawk application.View part 1983-85 Honda CB650SC / CB550SC Athena Overhaul Gasket Set Athena overhaul gasket setEngine gasket set listed for the CB650SC Nighthawk application.View part

Related parts: Magnetic drain plug · Drain-plug crush washer

Keep oil-service parts separate

The single paper filter is useful for one service order; multipacks suit a planned maintenance supply. Check the existing filter spring and sealing parts before ordering. A fresh element does not bring replacement O-rings, a spring or washers with it.

Choose the right sealing scope

A leak at the valve cover calls for checking that cover and its gasket. Broader engine dismantling may justify an overhaul set. Obtain its itemized contents before relying on it for a particular seal or a complete list of repair consumables.

Ordering questions

Does the filter include new O-rings?

No. The paper filter is supplied separately from the O-rings, spring and washers. Inspect those items when planning the service and add only the replacements your housing needs.

Should I reuse the drain-plug washer after an oil change?

Fit a fresh crush washer whenever the drain plug is removed. The listed washer measures 12mm inside diameter × 18mm outside diameter × 1mm thick; match the plug shank and flat sealing seat before ordering.

Can I use the gasket set as a complete engine rebuild shopping list?

Use it as a gasket-set choice, then check its actual contents against your repair. Bearings, wear parts and any unlisted seals must be assessed separately rather than assumed to be included.

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

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