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1979 Honda CB400TII Hawk II Pistons & Rings

Cylinder measurements should lead this purchase. The available standard-size kit for the 1979 Hawk II combines a piston, rings, pin and clips for one cylinder, making it important to distinguish the package quantity from the full twin-cylinder rebuild order.

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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 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...
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1979 Honda CB400TII Hawk II · Pistons & Rings Buying guide

Choose piston size after measuring the cylinders

Use the standard kit only after bore inspection confirms that size. Compare the piston and ring requirements together, particularly on an engine with unknown rebuilding or machining history.

Parts to consider

Piston Kit with Piston Rings and Pin ~ Standard Size (07-0187) Standard-size piston kitOne piston with rings, pin and clips. Two kits service both pistons in the Hawk II twin.View part

Keep the supplied components together

The kit combines one standard-size piston with its rings, pin and clips. That makes the piston assembly the ordering unit. Retain the identity of the matched components through the rebuild and have their clearances checked against the applicable Honda service information.

Check the engine’s rebuilding history

An old motorcycle may already have replacement pistons or machined cylinders. Confirm the actual dimensions before ordering instead of relying on the model year or markings on an old box. If the measurements call for another size, resolve that requirement before buying this standard kit.

Ordering questions

Is this a pair of pistons?

No. One kit services one piston and includes its rings, pin and clips. Order two kits when both pistons of the Hawk II twin need replacing.

Does standard size mean it fits an untouched engine automatically?

No. Bore wear and condition still need measurement. The standard-size kit is appropriate only when the cylinder and piston clearances meet the applicable service specifications.

Which references identify the kit’s components?

The piston reference is 13101-413-013, with rings 13011-413-025, pin 13111-413-000 and clips 94601-17000. Compare these along with the measured size when checking a replacement-engine application.

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