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1978 Honda CB400TII Hawk II Engine Parts

The Hawk II’s 395cc parallel-twin engine calls for a repair plan before a parts order. Start with the joint, wear item or service point you are working on, then choose a filter, gasket or cam-chain component for that specific job.

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Honda motorcycle parts

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Honda CB1100 CB1000 CB900 CB750 oil filter washer set 15414-300-000

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

$7.95 USD
15-0039
Fit oil filter washers with this Oil Filter Washer 5-pack, replacing OEM #15414-300-000. Used with original-type paper oil filter elements. Exceptionally broad fitment across...
Honda CB1100 CB1000 CB900 CB750 CB450 magnetic oil drain plug

Honda CB Magnetic Oil Drain Plug

$10.95 USD
15-0014
Catch steel debris on oil changes with this Magnetic Oil Drain Plug, 14mm diameter x M1.5, replacing OEM #92800-14000. Fits the CB750A Hondamatic, full...
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...
Honda CB750 CB650 CB550 front sprocket lock plate set 23811-292-000

Honda CB Front Sprocket Lock Plate Set ~ Replaces 23811-292-000

$5.95 USD
49-0782
Replace your front sprocket lock plate with this Front Sprocket Lock Plate with 2 lock plate bolts. Always good to replace these when installing...
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Honda CB1100 CB1000 CB900 CB750 drain plug washer

Honda CB1100/CB1000/CB900/CB750 Drain Plug Washer

$1.75 USD
15-0000
Replace your oil drain plug washer with this 14mm x 20mm x 1mm Drain Plug Washer. Broad fitment across the CB750A Hondamatic, the full...
New
Honda CB750 CB550 CB500 rear shock swingarm bushing 40548-268-000

Honda CB Rear Shock Swingarm Bushing ~ Replaces 40548-268-000

$6.20 USD
28-6918
Rear shock swingarm bushing designed to replace the original Honda component, matching OEM reference 40548-268-000. Fits between the shock and swingarm to provide proper...
Honda CB750 CB650 CB550 tappet adjuster screw and nut set 90012-426-000

Honda CB Tappet Adjuster Screw & Nut Set ~ Replaces 90012-426-000

$4.61 USD
49-0784
Replace your tappet adjuster screws and nuts with this Tappet Adjuster Screw & Nut Set. Each set includes one tappet adjuster screw and one...
Honda CB450 CB400 oil filter 15412-413-005

1978-86 Honda CB450 / CB400 Oil Filter ~ Replaces 15412-413-005

$8.95 USD
15-0007
Service your CB400 or CB450 with this Stock-Type Oil Filter Element (paper filter), replacing OEM #15412-413-005 / #154A1-413-005 / #154A1-MA6-000.Key Features• Stock-type paper oil...
Honda CB750 CB400 valve stem seal 12209-300-000

Honda CB750 / CB400 Valve Stem Seal

$3.50 USD
01-0131
Rebuild your CB750 top end the right way with this Valve Stem Seal, replacing OEM Ref. #12209-300-000 / #12209-300-003 / #12209-300-005 / #12209-300-010. Fits...
New
Honda CB400 CB450 exhaust valve 14721-413-000

Honda CB400 / CB450 Exhaust Valve ~ Replaces 14721-413-000

$19.95 USD
01-9962
Restore proper engine performance with this Exhaust Valve, designed as a direct replacement for the original Honda component. This valve replaces OEM part number...
Honda CB750 CB450 CB400 CB360 CB77 valve guide clip 12211-250-310

Honda CB Valve Guide Clip ~ Replaces 12211-250-310

$1.95 USD
73-0939
Replace your valve guide clip with this Valve Guide Clip, replacing OEM #12211-250-310.Sold each, order the quantity you require.Key Features• Valve guide clip• Replaces...
New
Honda CB400 CB450 intake valve 14711-235-010

Honda CB400 / CB450 Intake Valve ~ Replaces 14711-235-010

$19.95 USD
01-9961
Restore proper engine performance with this Intake Valve, designed as a direct replacement for the original Honda component. This valve replaces OEM part number...
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Honda CB400 Athena overhaul gasket set

1978-81 Honda CB400 Athena Overhaul Gasket Set

$119.95 USD
18-0103
Rebuild your CB400 engine with this Athena Overhaul Engine Gasket Set. Athena of Italy is an original-equipment supplier to Yamaha, Honda, Kawasaki, Suzuki, and...
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Honda CB450 CB400 valve cover gasket 12328-413-830

1978-86 Honda CB450 / CB400 Valve Cover Gasket ~ Replaces 12328-413-830

$31.95 USD
12-1014
Replace your CB400 or CB450 valve cover gasket with this Athena Brand Valve Cover Gasket, replacing OEM #12328-413-830. Fits the full CB400A/TI/TII/T range plus...
Honda CB400 cam chain tensioner 14500-413-000

Honda CB400 Cam Chain Tensioner ~ Replaces 14500-413-000

$34.95 USD
07-0193
Replace a worn cam chain tensioner on your CB400 with this Cam Chain Tensioner, replacing OEM #14500-413-000. Fits the CB400A, CB400TI, CB400TII, and CB400T,...
Honda CB400 CB450 silent cam chain a 412H x 110 14401-MR4-901

Honda CB400 / CB450 Silent Cam Chain A 412H x 110

$89.95 USD
01-0206
Keep your CB400 or CB450 running quiet and in spec with this Silent Cam Chain A, 412H x 110 links. High-quality construction made in...
Honda CB400TI std piston kit w rings and pin 13101-413-013

Piston Kit with Piston Rings and Pin ~ Standard Size (07-0187)

$69.95 USD
07-0187
Upgrade or rebuild your classic Honda motorcycle engine with this Standard Size Piston Kit — complete with piston, piston rings, and piston pin. This...
New
Honda CB450 CB400 CB360 CB350 drive chain adjuster with nut and bolt 40543-471-000

Honda CB Drive Chain Adjuster with Nut & Bolt ~ Replaces 40543-471-000 / 40543-312-010

$24.95 USD
99-4856
Upgrade or restore your classic Honda motorcycle’s rear drive system with this Drive Chain Adjuster with Nut and Bolt — a quality replacement designed...
Honda CB450 CB400 oil filter bolt 15420-413-000

1978-86 Honda CB450 / CB400 Oil Filter Bolt ~ Replaces 15420-413-000

$28.95 USD
15-3021
Fit the CB400 or CB450 oil filter bolt with this Oil Filter Bolt, replacing OEM #15420-413-000.Key Features• Oil filter bolt• Replaces OEM #15420-413-000• Honda...
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1978 Honda CB400TII Hawk II · Engine Buying guide

Choose parts around the engine work ahead

Routine oil service, a valve-cover reseal and internal cam-chain work need different shopping lists. These choices give you useful starting points without treating every engine job as a complete overhaul.

Parts to consider

1978-86 Honda CB450 / CB400 Oil Filter ~ Replaces 15412-413-005 Paper oil filterStock-type paper element for the Hawk II oil-filter housing, replacing reference 15412-413-005.View part 1978-86 Honda CB450 / CB400 Valve Cover Gasket ~ Replaces 12328-413-830 Athena valve-cover gasketSeparate Athena gasket for the valve cover, replacing reference 12328-413-830.View part Honda CB400 Cam Chain Tensioner ~ Replaces 14500-413-000 Cam-chain tensionerReplacement tensioner for the CB400TII engine, corresponding to reference 14500-413-000.View part

Keep maintenance orders focused

For routine oil service, begin with the paper element and inspect the filter bolt, housing and drain-plug threads. A leak near the filter and one at the valve cover require different parts. Locate the source before committing to a larger gasket order.

Separate inspection from replacement

Cam-chain noise or poor running is a reason to inspect the engine, not proof that a single component needs replacement. Follow the Honda manual for diagnosis and measurements. Build the parts list around what the inspection establishes and the work needed to reach it.

Common questions

Which parts make sense for a routine oil change?

Start with the correct paper filter element, then inspect the filter housing, retaining bolt and drain-plug sealing area. Replace damaged hardware as needed; a broader engine gasket set is a separate repair purchase.

Can I buy just the valve-cover gasket?

Yes. The separate Athena valve-cover gasket is offered for this engine. It is a focused choice when the repair only opens that joint, provided the cover and mating surface are serviceable.

Is the cam-chain tensioner enough to cure engine noise?

That cannot be decided from noise alone. Inspect the chain, tensioner and associated drive parts using the Honda manual before ordering. The featured tensioner is one component in that system.

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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