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1978 Honda CB400A Sidecover Mounting Rubbers

The sidecover choices here are individual A- and B-type mounting rubbers. Both include the 1978 CB400A, but their profiles and replacement references differ. Identify the failed mounting point and inspect both covers before ordering the pieces needed for a partial or complete refresh.

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Honda CB sidecover damper rubber b 83551-300-000

Honda CB Sidecover Damper Rubber B ~ Replaces 83551-300-000

$2.54 USD
02-6531
Keep your sidecovers snug and rattle-free with this Rubber Sidecover Damper B, a direct replacement for OEM #83551-300-000. Fits an exceptionally broad range of...
Honda CB sidecover damper rubber a 17247-303-000

Honda CB Sidecover Damper Rubber A ~ Replaces 17247-303-000

$2.54 USD
02-6532
Complete your sidecover damper refresh with this Rubber Sidecover Damper A, a direct replacement for OEM #17247-303-000. This is one of the 3 different...
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1978 Honda CB400A · Sidecover mounting rubbers Buying guide

Match the sidecover mounting point, then the rubber

The available A- and B-type rubbers have different profiles and references. Compare the mounting holes, cover pins and remaining rubbers on your CB400A before deciding which pieces and quantities the repair needs.

Parts to consider

Honda CB Sidecover Damper Rubber A ~ Replaces 17247-303-000 Sidecover damper ASold individually; replacement reference 17247-303-000. Match its profile to the mounting point being repaired.View part Honda CB Sidecover Damper Rubber B ~ Replaces 83551-300-000 Sidecover damper BSold individually; replacement reference 83551-300-000. Match the rubber to the mounting point being repaired.View part

Order the two profiles separately

A-type rubbers replace 17247-303-000; B-type rubbers replace 83551-300-000. Both are sold individually. Lay out the worn pieces by mounting position and compare their profiles with the replacements. Do not transfer a CB750 sidecover quantity to the CB400A simply because the products cover both models.

Inspect the covers before fitting new rubbers

Inspect each cover pin, mounting hole and remaining rubber support. A damaged pin or altered mounting hole can require a different repair from a missing grommet. With reproduction or repaired sidecovers, compare the actual attachment points before relying on the original-model application.

Sidecover mounting rubbers buying questions

Are A and B rubbers interchangeable?

Choose the type specified at the mounting point. A replaces 17247-303-000 and B replaces 83551-300-000; their profiles differ. Matching the opening and cover pin is more reliable than choosing by a general sidecover label.

Are the rubbers supplied individually or as a sidecover kit?

Both A and B rubbers are sold individually. Count the mounting positions being renewed and choose the profile for each one. The two listings should not be treated as a pre-counted complete kit for the motorcycle.

Will these rubbers fit reproduction sidecovers?

Both products list the 1978 CB400A, but reproduction or repaired covers may have different pins or attachment points. Compare those features and the rubber profiles with the fitted covers before placing the order.

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