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1978 Honda CB400A Fuse Box

This CB400A route provides a complete replacement fuse box with fuses included. Inspect the existing holder, its mounting and electrical connections before ordering. A new fuse box should restore the intended circuit protection without changing ratings to compensate for another electrical problem.

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Honda CB450 CB400 fuse box assembly 38200-413-003

1978-82 Honda CB450 / CB400 Fuse Box Assembly ~ Replaces 38200-413-003

$54.95 USD
11-2106
Rebuild your CB400 family fuse box with this Complete Fuse Box Assembly (fuses included), replacing OEM #38200-413-003. Fits the full CB400 range from 1978-82...
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1978 Honda CB400A · Fuse Box Buying guide

Replace the holder while preserving circuit protection

The assembly references 38200-413-003 and includes fuses. Compare it with the motorcycle’s existing holder and use the Honda circuit information when checking the wiring, particularly on bikes with added accessories or previous repairs.

Parts to consider

1978-82 Honda CB450 / CB400 Fuse Box Assembly ~ Replaces 38200-413-003 Fuse box with fusesComplete replacement assembly with fuses included; reference 38200-413-003.View part

Check the assembly before dismantling

The replacement is a complete fuse-box assembly with fuses supplied. Compare the mounting position and connection layout while the old unit is still identifiable. If the harness has been altered, document those changes before deciding whether the replacement assembly matches it.

Keep fuse ratings tied to the circuit

A fuse protects its wiring circuit. Use the applicable Honda information to confirm ratings and investigate repeated failures. Additional lamps or accessories need an appropriate wiring assessment; fitting a larger fuse is not a substitute for resolving excess load or a damaged wire.

Fuse Box questions

Are fuses included with this assembly?

Yes. The complete replacement fuse box is supplied with fuses. Confirm the required circuit ratings against the applicable Honda documentation during installation rather than relying on the rating of an old substituted fuse.

Will it suit a motorcycle with a modified harness?

Compare the mounting and all electrical connections with the wiring actually present. The CB400A application is a useful starting point, but previous harness changes can prevent an otherwise correct replacement from connecting as intended.

Should I fit a higher-rated fuse if one keeps blowing?

No. Preserve the specified circuit protection and investigate the reason for repeated fuse failure. A higher-rated fuse can leave wiring inadequately protected and does not repair the underlying electrical problem.

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