4.9/5 from 1154 CB riders Read Reviews
New

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

99-4951
$4.95
In stock Usually ships the same or next business day
Fits select Honda CB models View complete fitment below

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

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

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

Read More
Read Less

Shipping Information

All items on our website are in hand ready to ship immediately. We ship orders out every business day.

We do our best to insure the earliest possible ship time on all orders, Orders are typically shipped on the business day the order is placed or the business day after.

USA Orders shipping with Ground Shipping will arrive in approximately 3-7 business days after shipping. Canadian orders shipping with Ground will arrive in approximately 2-6 business days. You will be emailed tracking information after the order has been shipped. All packages are shipped without signature confirmation, so any packages that arrive while no one is home will be left at the door.

USA Ground Shipping

We offer FREE Ground Shipping for ALL orders to the USA over $50. We also offer express options at checkout.

Shipping to Canada

Ground Shipping

We offer FREE Ground Shipping to Canada for all orders over $50.

We ship packages to Canada daily using several different couriers. We do this because the price to ship from province to province varies greatly by courier. Delivery will take around 2-6 Business days depending on location. You will be emailed tracking information as soon as the order is picked up. Please use this tracking number to determine when your package will arrive, and make appropriate arrangements.

Economy Shipping

We offer Economy Canada Post shipping at checkout for select small items. If your order applies for Post Economy shipping it will show up at checkout as an option. Canada Post Economy shipping does not include tracking or insurance. It typically takes 1-3 weeks for delivery.

International Shipping Information

International orders can be placed directly through our website.

Note:

International buyers please be aware of the relevant taxation implications for your respective Countries. We will not be responsible for any extra charges for duties, or taxes once your order arrives. Sorry, we cannot ship orders as “a gift”.

Returns

Need to return a part? Not a problem! Visit our return page and fill out the return form. We will get back to you with the return instructions within 1 business day.

Frequently Asked Questions

Which Honda brake-caliper boot does this replace?

It replaces Honda OEM 45133-425-003 on the compatible CB750, CB650 and CB400 front brake-caliper shaft or slide locations shown. It is a slide-shaft boot, not a caliper-piston seal.

How many 45133-425-003 caliper shaft boots are included and required?

One boot is included. Some compatible Honda front-brake diagrams call for four per motorcycle; inspect and count every shaft location on the exact caliper arrangement before ordering a complete set.

Why should a torn caliper shaft boot be replaced?

The boot helps keep water and grit from the sliding shaft. Clean and inspect the shaft and bore for corrosion, use only brake-compatible lubricant where Honda specifies it and confirm the caliper moves freely after assembly.

See Why Customers Love Us

Your cart

×