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1985 Honda CB450SC Nighthawk Front Caliper Bleeder Identification

For front-caliper bleeder replacement on a 1985 Honda CB450SC Nighthawk, use the Honda reference and fitted casting to identify the screw. Thread and seat design must match exactly. The listing supplies one screw for one compatible caliper, so package count follows the calipers actually being serviced.

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Honda CB750 CB650 CB450 CB400 front caliper bleed screw 45224-413-003

Honda CB750 / CB650 / CB450 / CB400 Front Caliper Bleed Screw ~ Replaces 45224-413-003

$8.95 USD
73-0995
Replace your front caliper bleed screw with this Front Brake Caliper Bleed Screw, replacing OEM #45224-413-003.Key Features• Front brake caliper bleed screw• Replaces OEM...
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1985 Honda CB450SC Nighthawk · Front Caliper Bleeder Buying guide

Identify 45224-413-003 at the caliper being repaired

The current application lists the 1985 CB450SC front caliper and reference 45224-413-003. Its listing requires a casting comparison because screw thread and sealing-seat design must be exact. Inspect the conical seat in the retained caliper before deciding that the screw is the only required service item.

Parts to consider

Honda CB750 / CB650 / CB450 / CB400 Front Caliper Bleed Screw ~ Replaces 45224-413-003 Single front-caliper bleed screwOne 45224-413-003 replacement for one compatible front caliper; exact casting, thread and seat matching is required.View part

Check the caliper rather than choosing a screw from a photograph

The listing includes several Honda families with their own fitment details. Use the CB450SC application and the fitted caliper casting instead of copying another model’s frame-number limits. The visible screw shape is not a substitute for the stated exact thread and seat requirement.

Assess the seat before completing the order

The product guidance calls for inspection of the caliper’s conical sealing seat and a leakage check after correct bleeding and specified tightening. No numerical torque is provided here. Use the correct service specification and the condition of that retained seat when planning the repair.

Parts ordering FAQs

Which identification details matter if the front caliper has been replaced previously?

Match 45224-413-003 and the caliper casting, then confirm the screw thread and seat design exactly. The current listing includes the 1985 CB450SC application, but a replacement casting needs its own comparison. Similar screw appearance does not establish that precise match.

How is screw quantity decided when more than one front caliper is being serviced?

One screw is supplied per item for one compatible caliper. The listing calls for two when both front calipers use the same Honda reference. Count the actual compatible calipers needing renewal, rather than assuming the motorcycle’s total from the multi-model listing.

What retained sealing surface should be checked before buying the replacement bleeder?

Inspect the conical sealing seat inside the caliper, as the product listing specifies. The replacement must match that seat and the thread. Include any seat damage in the repair assessment, and use the correct service specification for tightening and leakage verification.

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