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1978 Honda CB400A Speedometer Cable

The CB400A cable choice here is a 38.5-inch black mechanical speedometer cable made in Japan. Check the installed drive, connections and routing before ordering, especially after a wheel or instrument change. The drive plug in this category serves a different purpose.

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Honda CB750 CB550 CB500 CB450 CB400 speedometer cable 44830-425-870

Honda CB Speedometer Cable ~ Replaces 44830-425-870

$22.66 USD
51-2304
Replace your CB speedometer cable with this Speedometer Cable in black, replacing OEM #44830-425-870. End-to-end length 38.5". Made in Japan.Key Features• Speedometer cable, black•...
Honda CB1000 CB900 CB750 CB650 speedo gear plug

Honda CB1000/CB900/CB750/CB650 Speedo Gear Plug

$43.95 USD
29-0538
Keep your speedo drive gear clean with this Speedo Gear Plug, 15mm outer diameter, 22mm long.Key Features• Speedo gear plug• 15mm outer diameter, 22mm...
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1978 Honda CB400A · Speedometer cable Buying guide

Match the speedometer cable to the fitted drive and gauge

The cable connects the existing speedometer system and has an explicit 1978 CB400A application. Compare the full end-to-end length and fittings rather than using the outer casing length as the only check.

Parts to consider

Honda CB Speedometer Cable ~ Replaces 44830-425-870 Black speedometer cableMade in Japan; 38.5 inches end-to-end and replacement reference 44830-425-870. Listed for the 1978 CB400A.View part

Related parts: Speedo drive gear plug

Use the specified cable length consistently

The replacement cable is 38.5 inches end-to-end, with a black outer and reference 44830-425-870. Compare it using the same measurement convention. A changed front end or relocated instrument can alter routing needs, so assess the entire path and both connections before ordering.

Distinguish a service cable from a drive plug

The linked speedo gear plug is a separate 15 mm outside-diameter, 22 mm long item intended to keep the original drive gear clean. It is not a replacement drive cable. Choose parts for the speedometer arrangement actually fitted and have the drive and gauge checked if the fault is uncertain.

Speedometer cable buying questions

How is the cable length measured?

The product specifies 38.5 inches end-to-end. Compare that overall measurement and both fittings with the installed cable. Measuring only the outer casing can make otherwise similar cables appear to have the same length.

Can I use it with a custom speedometer?

The original-model application does not verify every custom gauge. Confirm the gauge’s mechanical connection and drive calibration, then check cable routing and reach. A cable that connects physically does not by itself establish an accurate speed reading.

What should I check before ordering a plug for a changed speedometer drive?

The linked plug measures 15 mm outside diameter and 22 mm long. Compare the fitted drive opening and plug location, particularly after a wheel or drive change. Its original-model application does not verify a different drive assembly.

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