UNI stock OEM replacement foam air filter for the stock air box on Honda CB500 & CB550's.
Instruction Note: For model CB500 prior to 1974, filter is ready for use. For units with breather tube connected to air filter (after 1974), extract the red foam piece from the 1" hole and discard. This is easily accomplished with tip end of pliers, tweezers, etc.
These filters need to be oiled. We have the oil available here.
Similar to Honda OEM part Numbers: 17210-390-003, 17210-374-003, 17210-374-P00
UNI Part Number: NU-4055
Fits Honda:
CB500K Four 1971-1973
CB550F Super Sport - 1975-1977
CB550K - 1974-1978
3 Reviews Hide Reviews Show Reviews
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Foam air filter cb 550 k 1977
Filter was a great fit and the bike has never been the same. The stock paper filter was too restrictive in regards to air flow to the carburetors. The oil impregnated filter difference was immediate and the bike runs superbly. An excellent substitute for the old paper filter.
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Great fit
Well made, very good item
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Perfect replacement!
Fits great! Just what my 40 year old bike needed to keep on rolling!!
