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1981 Honda CB400TB Front-Caliper Repair

The 1981 CB400TB front caliper uses two pistons, so its repair parts need to match that specific assembly. Start with the caliper condition and required seal service, then check the bleeder and other reusable hardware before placing a focused parts order.

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Most orders ship same or next business day Fitment guarantee Listed for your exact model and year? We’ll make it right if it doesn’t fit as described. Mechanic-backed support Ask our team for help choosing the right Honda CB part.
Currently viewing Brake Caliper Rebuild Kits, Caliper Pistons, Bleed Screws

Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

Honda CB1100 CB1000 CB900 CB750 caliper bleed screw 43352-568-003

Honda CB Caliper Bleed Screw ~ Replaces 43352-568-003

$7.95 USD
73-0994
Replace your caliper bleed screw with this Brake Caliper Bleed Screw, replacing OEM #43352-568-003.Key Features• Brake caliper bleed screw• Replaces OEM #43352-568-003• Honda part...
Honda CB1100 CB1000 CB900 CB750 CB650 caliper piston 45107-MA3-006

Honda CB Caliper Piston ~ Replaces 45107-MA3-006

$26.95 USD
29-0509
Replace your DOHC CB caliper piston with this Brake Caliper Piston, 30.15mm diameter x 35mm length, replacing OEM #45107-MA3-006.Key Features• Brake caliper piston• 30.15mm...
Honda CB1000C CB900C CB750K CB450SC CB400T deluxe caliper repair kit

1981-86 Honda CB1000C / CB900C / CB750K / CB450SC / CB400T Deluxe Caliper Repair Kit

$29.95 USD
29-6001
Freshen up the brake caliper on compatible Honda CB models with this aftermarket deluxe brake caliper repair kit. This kit is intended for rebuilding...
Honda CB1000C CB900C CB650 CB450SC CB400T caliper rebuild kit

1981-86 Honda CB1000C / CB900C / CB650 / CB450SC / CB400T Caliper Rebuild Kit

$37.95 USD
29-0013
Rebuild a single brake caliper with this Single Brake Caliper Rebuild Kit (repairs one caliper).Key Features• Single brake caliper rebuild kit• Repairs one caliperFitment...
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Honda CB1100 CB900 CB750 CB650 caliper piston w seals 43107-MA3-006

Honda CB Caliper Piston w Seals ~ Replaces 43107-MA3-006

$37.95 USD
29-0530
Replace your DOHC caliper piston with this Brake Caliper Piston with Seals, 27mm diameter x 35mm length, replacing OEM #43107-MA3-006.Key Features• Brake caliper piston...
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1981 Honda CB400TB · Front-Caliper Service Buying guide

Plan the repair around the fitted two-piston caliper

The featured kit covers one caliper and the bleeder is a separate service part. Inspect the assembly first so that worn pistons, damaged threads or other hard parts are identified before the repair begins.

Parts to consider

1981-86 Honda CB1000C / CB900C / CB650 / CB450SC / CB400T Caliper Rebuild Kit Front-caliper rebuild kitSeal-and-boot repair kit for one caliper, with an explicit 1981 CB400T application.View part Honda CB Caliper Bleed Screw ~ Replaces 43352-568-003 Caliper bleed screwFront-caliper bleeder replacing reference 43352-568-003 on the 1981 CB400T.View part

Check the hard parts before choosing seal service

A caliper rebuild begins with inspection of the body, pistons and sliding hardware. A seal kit cannot correct a damaged bore or badly corroded piston. Have questionable dimensions and surfaces checked against the 1981 Honda service information before deciding which replacement parts are needed.

Keep kit coverage and bleeder repairs separate

The featured kit is specified for one caliper. Compare its contents with the dismantled assembly instead of assuming every piston, pin or bleeder is included. The featured bleed screw is a separate choice; inspect its seating area and caliper threads before replacement.

Buying questions

Does one rebuild kit cover both pistons in one caliper?

Yes. The kit is specified to repair one complete 1981 CB400T caliper and supplies seals and rubber boots. Inspect the pistons, pins and other hard parts separately to determine whether they can be reused.

What should I check before ordering a caliper piston?

Confirm the fitted caliper, measure the piston accurately and compare the required specification with the 1981 Honda manual. Have any disagreement resolved before purchase; an application tag alone is insufficient for a hydraulic piston.

Will a new bleeder repair stripped caliper threads?

No. Inspect the threaded hole and sealing seat first. A replacement screw is appropriate only when the caliper itself can securely retain and seal it; damaged caliper threads need a separate repair assessment.

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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