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  • 1979-81 Honda CB750 / CB650 Front Caliper Piston ~ Replaces 45107-425-003
Honda CB750 CB650 front caliper piston 45107-425-003
VintageCB750 parts reference, SKU 29-0532. 1980 Honda CB750C A (U.S.; serial limits unverified) example. OEM 45107-425-003.
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60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
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Honda CB750 CB650 front caliper piston 45107-425-003

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Load image into Gallery viewer, Honda CB750 CB650 front caliper piston 45107-425-003
Load image into Gallery viewer, VintageCB750 parts reference, SKU 29-0532. 1980 Honda CB750C A (U.S.; serial limits unverified) example. OEM 45107-425-003.
5.0 ( 1 review)

1979-81 Honda CB750 / CB650 Front Caliper Piston ~ Replaces 45107-425-003

29-0532
$59.95 USD
In stock Usually ships the same or next business day
Check model fitment View fitment
Questions about this part? Contact us 4.8/5 1,331 store reviews
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
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1 product reviews

1979-81 Honda CB750 / CB650 Front Caliper Piston ~ Replaces 45107-425-003

1979-81 Honda CB750 / CB650 Front Caliper Piston ~ Replaces 45107-425-003
$59.95 USD
Description

Replace your DOHC CB750 or CB650 front caliper piston with this Front Brake Caliper Piston, 42.8mm diameter x 36.5mm length, replacing OEM #45107-425-003.

Key Features
• Front brake caliper piston
• 42.8mm diameter x 36.5mm length
• Replaces OEM #45107-425-003

Fitment / Compatibility

• Front caliper:
• Honda CB750K (1979‑81), 1 per bike
• CB750L (1979) Limited, 1 per bike
• CB750C (1980) Custom, 1 per bike

• Front caliper:
• Honda CB650 (1979‑81), 1 per bike
• CB650C (1980) Custom, 1 per bike

Part Number: 29-0532

Read More
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Check the listed model and year, then read any fitment notes in the description.

Make Model Year
Honda CB750K Standard 1979
Honda CB750L Limited 1979
Honda CB750K 1980
Honda CB750C Custom 1980
Honda CB750K 1981
Honda CB650 1979
Honda CB650 1980
Honda CB650 1981
Honda CB650C Custom 1980

Free ground shipping over $50

To the USA & Canada. In-stock orders usually ship from our own warehouse the same or next business day.

Estimated ground delivery after your order ships
DestinationDelivery time
USA4–7 business days
Canada2–6 business days

Ground shipping includes tracking, emailed when your order ships. Need it sooner? Express options are available at checkout.

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60-day returns on eligible parts

No restocking fees. Eligible parts must be unused, uninstalled, unaltered and complete. The 60-day window starts when your order is delivered.

Electrical parts are excluded from standard returns. Check return eligibility.

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Other shipping options

Canada Post Economy: Available at checkout for select small items. Allow 1–3 weeks for delivery. No tracking or insurance is included.

Outside the USA & Canada: Delivery times vary by destination and shipping method. Buyers are responsible for applicable duties, taxes and import fees. We cannot mark orders as gifts.

Frequently Asked Questions

What are the brake-caliper piston dimensions?

The piston measures 42.8mm in diameter by 36.5mm long.

How many caliper pistons are required?

One piston is used per compatible single-piston caliper; one is required per motorcycle for the supported applications.

Which Honda OEM number does the piston replace?

The piston replaces Honda OEM number 45107-425-003.

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