Front Brake Caliper Piston Seal - 45108-300-003 - Honda CB350/360/400/450/500/550/650/750 CM400

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Reproduction Honda piston seal for the front brake caliper. Replace the piston seal when replacing your piston or after cleaning the stock piston. Forms a tight seal to prevent brake fluid from seeping past the piston.

Sold Individually, only one is necessary to rebuild the front brake caliper.

Equivalent to Honda OEM part number: 45108-300-003

Outer Diameter: 44mm
Inner Diameter: 39mm
Thickness: 3mm
Height: 3.3mm

Fits Honda:

CB350F Four - 1972-1974
CB360 - 1974
CB360G - 1974
CB360T - 1975-1976
CB400F Super Sport - 1975-1977
CB400A Hawk Hondamatic - 1978
CB400T Hawk - 1980
CB400TII Hawk II - 1978-1979
CM400A Hondamatic - 1979-1981
CM400T - 1979-1981
CB450K Super Sport - 1970-1974
CB500K Four - 1971-1973
CB500T Twin DOHC - 1975-1976
CB550F Super Sport- 1975-1977
CB550K Four - 1974-1978
CB650C Custom - 1981
CB750C Custom - 1981
CB750K Four - 1969-1976

13 Reviews Hide Reviews Show Reviews

  • 5
    REPLICA HONDA - FRONT BRAKE CALIPER PISTON SEAL

    Posted by 14223 on 2nd Oct 2014

    The brake cylinder seal is as good if not better than the genuine item, it fits in exactly and neatly as is just as efficient as would a genuine seal. Easy to fit and I can't imagine any fluid escaping by the seal as it's snug fit with the piston.

  • 5
    Easy Install

    Posted by Matt on 29th Jul 2014

    I thought I was going to have to replace the caliper and piston after extensive cleaning and several failed attempts to get the piston moving freely. Turns out the seal was the culprit. Easy fix and way cheaper than buying a whole new setup!

  • 5
    Did the Job

    Posted by James V on 7th Jul 2014

    Fits just like stock. No complaints.

  • 5
    Works great

    Posted by Wes on 10th Apr 2014

    Simple part, simple install