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1979 Honda CB400TII Hawk II Valvetrain Parts

Plan cylinder-head parts around the components found to be worn. The 1979 Hawk II uses a three-valve-per-cylinder twin layout, so keep exhaust-valve selection, individual stem seals and guide-retaining clips tied to their specific locations in the head.

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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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1979 Honda CB400TII Hawk II · Valvetrain Parts Buying guide

Match head parts to the inspected valve positions

The available selections address exhaust valves and the small sealing or retaining parts around the guides. Measure the head components before deciding which pieces require replacement.

Parts to consider

Honda CB400 / CB450 Exhaust Valve ~ Replaces 14721-413-000 Replacement exhaust valveExhaust-side replacement referencing 14721-413-000 for the 1978–79 CB400TII.View part Honda CB750 / CB400 Valve Stem Seal Individual valve-stem sealSold individually, with an explicit CB400TII application. Count the seals required for the head being serviced.View part Honda CB Valve Guide Clip ~ Replaces 12211-250-310 Individual valve-guide clipSold each; replaces reference 12211-250-310. Order the quantity needed for the guides being replaced.View part

Select the exhaust-side replacement

The exhaust valve references 14721-413-000 and explicitly includes the 1979 CB400TII. Use the original valve and the head inspection to check the application. Valve replacement should follow assessment of the guide and seat, since these related surfaces determine the scope of the repair.

Count small parts separately

Stem seals and valve-guide clips are individually supplied. Count the locations actually being serviced before ordering, and keep seals separate from retaining hardware on the parts list. Follow the Honda manual for head disassembly, inspection and replacement requirements rather than borrowing quantities from another CB engine.

Ordering questions

Are the valve-stem seals sold as a complete engine set?

No. The featured seals are sold individually. Build the quantity from the cylinder-head work being performed and the Honda parts layout for this twin.

How do I identify the offered exhaust valve?

Use reference 14721-413-000 and the explicit 1978–79 CB400TII application. Compare the removed component during head inspection rather than choosing a valve from appearance alone.

When should guide clips be added to the order?

Add them when the guide service plan calls for replacement retaining clips. They are sold each under reference 12211-250-310, so count the relevant guide locations before ordering.

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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