Honda motorcycle parts
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Choose your model and year to see parts listed for your bike.
1971 Honda CB500K · Tach & Speedo Buying guide
The catalog combines stock-application cables and gauge restoration pieces with custom instruments. A cable replacement and a smaller gauge conversion are different jobs, even when both appear under tach and speedo.
Tachometer cableBlack cable, made in Japan, listed for CB500K 1971–73. References 37260-300-000 and 37260-449-840.View part
7:1 custom mini tachometer2.25-inch all-black mechanical tach with LED illumination. V-plate included; mounting bracket is separate.View part
Chrome gauge cover setCosmetic covers for stock-type gauges. The pictured instruments are not included.View part
Related parts: Check the speedometer cable · Compare Nippon Seiki crimp rings · Check the trip-knob grommet
A cable, rubber grommet or crimp ring serves a different purpose from the instrument itself. Inspect the part you intend to replace and match its connection or dimensions. Chrome covers alter the outside appearance; they do not repair or replace the speedometer or tachometer.
The featured custom tach is listed at 7:1 for this CB500K application. Do not select the catalog’s 4:1 CB750-type tach by appearance. A supplied V-plate is not a complete mounting arrangement; confirm the separate bracket and the illumination connections.
The featured custom tach listing specifies 7:1 and includes CB500K 1971–73. A different custom tach explicitly uses 4:1 for CB750s. Check the required drive ratio rather than choosing a tachometer by its appearance or the Honda CB name alone.
The covers are for stock-type gauges and measure 103mm at the base, 87mm at the top and 37mm tall. Compare the retained housings with those dimensions; the cover with the trip-reset cutout belongs on the speedometer.
Match the cable’s Honda reference, both threaded ends, inner-drive shape and routed length to the fitted instrument. The speedometer replacement is 38.5 inches end to end; that measurement does not establish the length of the separately listed tachometer cable.
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