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  • Honda CB750 / CB650 / CB400 Front Brake Caliper Shaft Boot ~ Replaces 45133-425-003
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Honda CB750 CB650 CB400 front brake caliper shaft boot 45133-425-003
VintageCB750 parts reference, SKU 99-4951. 1980 Honda CB750C A example. OEM 45133-425-003.
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Honda CB750 CB650 CB400 front brake caliper shaft boot 45133-425-003

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Load image into Gallery viewer, Honda CB750 CB650 CB400 front brake caliper shaft boot 45133-425-003
Load image into Gallery viewer, VintageCB750 parts reference, SKU 99-4951. 1980 Honda CB750C A example. OEM 45133-425-003.
5.0 ( 2 reviews)

Honda CB750 / CB650 / CB400 Front Brake Caliper Shaft Boot ~ Replaces 45133-425-003

99-4951
$4.95 USD

Sold individually

In stock Usually ships the same or next business day
Check model fitment View fitment
Questions about this part? Contact us 4.8/5 1,347 store reviews
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
Browse all parts

2 product reviews

Honda CB750 / CB650 / CB400 Front Brake Caliper Shaft Boot ~ Replaces 45133-425-003

Honda CB750 / CB650 / CB400 Front Brake Caliper Shaft Boot ~ Replaces 45133-425-003
$4.95 USD
Description

Upgrade or restore your classic Honda motorcycle’s front brake system with this Front Brake Caliper Shaft Boot — a quality replacement designed to help keep your caliper shafts clean, protected, and free from debris. These boots often dry out or rip over time; installing new boots helps maintain proper brake function and extends the life of your caliper hardware. This part replaces OEM #45133‑425‑003 and is ideal for vintage Honda models during restoration or maintenance.

Sold each — order the quantity you require.

Key Features
• Replaces OEM part number: 45133‑425‑003
• Front brake caliper shaft boot to protect caliper internals
• Helps keep dirt, water, and debris out of brake components
• Durable rubber construction for long‑lasting use
• Our Part Number: 99‑4951
• Honda part name: Boot, Caliper Shaft

Fitment / Compatibility
• CB750L (1979) Limited
• CB750K (1980‑81)
• CB750C (1980‑81) Custom
• CB650 (1979‑81)
• CB650C (1980‑81) Custom
• CB400TA (1980) Hawk

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

Make Model Year
Honda CB750L Limited 1979
Honda CB750K 1980
Honda CB750C Custom 1980
Honda CB750K 1981
Honda CB750C 1981
Honda CB650 1979
Honda CB650 1980
Honda CB650 1981
Honda CB650C Custom 1980
Honda CB650C Custom 1981
Honda CB400TA Hawk 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 is included with Honda caliper shaft boot 45133-425-003?

One front brake-caliper slide-shaft boot replacing Honda OEM 45133-425-003 is included. It is not a caliper-piston seal.

Why should a torn caliper shaft boot be replaced?

The boot helps keep water and grit away from the sliding shaft. A damaged boot can allow corrosion that prevents the caliper from moving freely and causes uneven pad wear.

What should be inspected when replacing the caliper shaft boot?

Clean and inspect the shaft and bore for corrosion, use only brake-compatible lubricant where Honda specifies it and confirm free caliper movement. Also check pad wear, piston operation and the remaining boots.

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