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1974 Honda CB550K Instrument Cables and Drive Plugs

The 1974 Honda CB550K cable selection includes separate speedometer and tachometer replacements, a chrome tach-cable clamp and drive plugs. Choose the cable for the instrument being retained; block-off products serve an unused drive connection and are not replacements for a working cable.

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Honda CB750 CB650 CB550 CB500 CB350 tachometer cable 37260-300-000

Honda CB Tachometer Cable ~ Replaces 37260-300-000

$21.46 USD
51-2402
Replace your CB tachometer cable with this Tachometer Cable in black, replacing OEM #37260-300-000 / #37260-449-840. Made in Japan.Key Features• Tachometer cable, black• Replaces...
Honda CB750 CB650 CB550 CB400 CB350 tach drive plug block off w o-ring

Honda CB Tach Drive Plug Block Off w O-Ring

$22.95 USD
73-0884
Block off your tach drive cleanly with this Tach Drive Plug (Block Off) with O-ring. This plug is generally used when the tachometer cable...
Honda CB750 CB550 CB500 CB400 tachometer cable clamp 50462-323-010

Honda CB750 / CB550 / CB500 / CB400 Tachometer Cable Clamp ~ Replaces 50462-323-010

$7.00 USD
29-7004
Replace your worn tachometer cable clamp with this Chrome Tachometer Cable Clamp, replacing OEM #50462-323-010.Key Features• Chrome tachometer cable clamp• Replaces OEM #50462-323-010• Honda...
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...
Honda CB750 CB650 CB550 tach drive plug block off black joker machine

Honda CB Tach Drive Plug Block Off ~ Black ~ Joker Machine

$39.95 USD
73-1075
Block off your tach drive cleanly with this Joker Machine Brand Black Tach Drive Plug (Block Off). This plug is generally used when the...
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1974 Honda CB550K · Gauge cables Buying guide

Choose the cable by its instrument and connection

The speedometer cable has a stated 38.5-inch end-to-end length; the tachometer cable has different replacement references and no stated length. The chrome clamp is routing hardware, while the plugs serve separate drive arrangements.

Parts to consider

Honda CB Speedometer Cable ~ Replaces 44830-425-870 38.5-inch speedometer cableBlack replacement cable referencing 44830-425-870, made in Japan. Its description explicitly gives 38.5 inches end to end and lists CB550K 1974–78.View part Honda CB Tachometer Cable ~ Replaces 37260-300-000 Black replacement tachometer cableReferences 37260-300-000 and 37260-449-840, made in Japan, with CB550K 1974–76 application. The description does not state a cable length.View part Honda CB750 / CB550 / CB500 / CB400 Tachometer Cable Clamp ~ Replaces 50462-323-010 Chrome tachometer cable clampReferences 50462-323-010 and lists CB550K 1974–78. This is separate cable-routing hardware; the description does not list a cable or mounting fasteners as included.View part

Related parts: Tach drive block-off plug with O-ring · Joker Machine black tach drive plug · Speedo gear plug, 15mm outer diameter

Do not transfer the speedometer cable length

The 38.5-inch measurement belongs to the speedometer cable and is explicitly end to end. The tach cable description gives replacement references and model years without a length. Compare the correct cable and its installed routing instead of assuming both instrument cables share that measurement.

Use a drive plug for its stated function

The O-ring tach plug is intended for an unused tach cable connection. Its description specifies approximately 15mm diameter, a 10.5mm groove and screw retention. The speedo gear plug instead states 15mm outer diameter and 22mm length. Compare each product with its own intended opening.

Instrument cables and drive plugs questions

Does the tachometer cable come with the clamp?

The cable and chrome clamp are separate products with different references. Neither description names the other as included. Check which pieces are needed for the installed cable arrangement before adding the clamp to a replacement cable order.

Does the tach block-off plug maintain a mechanical gauge drive?

No. The product is described for when the tachometer cable connection is no longer being used, including a change to an electronic tachometer. It closes that connection; it does not supply the cable needed to operate a mechanical instrument.

What is confirmed for the speedo gear plug?

The description gives a 15mm outer diameter and 22mm length, and says it keeps the original speedo drive gear clean. It does not identify a replacement speedometer cable or provide a conversion procedure for an electronic instrument.

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