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1973 Honda CB500K Original Airbox or Clamp-On Intake

Before buying filters for a 1973 Honda CB500K, establish whether the original airbox is still installed. A stock-type replacement serves that airbox as one filter. Individual 39 mm pods instead attach to each compatible carburetor inlet, with rack support considered separately when the airbox is removed.

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Currently viewing Air Filters, Vent Filters

Honda motorcycle parts

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Honda CB750 CB550 CB500 CB400 CB350 round pod air filter

Honda CB Round Pod Air Filter

$22.95 USD
15-0030
Match the 15-0020 fitment with a chrome end-cap pod using this 39mm Round Pod Air Filter with chrome end cap. Circular style, supplied dry,...
Honda CB750 CB550 CB500 CB400 chrome velocity stack set 4 39mm id

Honda CB Chrome Velocity Stack Set/4 ~ 39mm ID

$169.95 USD
73-1145
Open up your intake with this Chrome Velocity Stack Set of 4 with integrated debris screens. 39mm inner diameter, sold as a complete set...
Honda CB750 CB550 CB500 CB400 CB350 round pod air filter black red

Honda CB Round Pod Air Filter ~ Black/Red

$24.95 USD
15-0020
Fit performance pod filters on your SOHC CB with this 39mm Round Pod Air Filter with black body and red foam filter. Circular style...
Honda CB500K stock type air filter 17210-323-030

1971-73 Honda CB500K Stock Type Air Filter ~ Replaces 17210-323-030

$32.95 USD
15-0162
Fit an alternate stock-type air filter option for your CB500K with this Stock-Type Air Filter, replacing OEM #17210-323-030.Key Features• Stock-type air filter• Replaces OEM...
Honda CB750 CB550 CB500 CB400 CB350 foam round pod air filter

Honda CB Foam Round Pod Air Filter

$16.95 USD
15-0095
Fit foam-media pods to your SOHC CB with this 39mm Round Foam Pod Air Filter with chrome end caps and rubber mouth. Circular style,...
Honda CB 39mm black round pod air filter

39mm Round Pod Air Filter with Black End Cap

$24.95 USD
15-0167
Replace worn or restrictive clamp-on filters with this aftermarket 39mm round pod air filter. The black end cap gives the filter a darker custom...
Honda CB550K CB500K carburetor stabilizer bracket

1971-76 Honda CB550K / CB500K Carburetor Stabilizer Bracket

$49.95 USD
29-0540
Stabilize your CB500 or CB550 carburetors when running pods or hardtails with this Carburetor Stabilizer Bracket. High-quality stainless steel, made in Canada. A must-have...
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1973 Honda CB500K · Air Filters & Intake Support Buying guide

Use the fitted intake arrangement to select filters and support

The original-airbox filter references 17210-323-030. The black-end-cap pod is individually supplied for a measured 39 mm inlet, with four required for the complete four-carb rack. A separately offered stainless bracket supplies support for the compatible airbox-removal arrangement, not filtration.

Parts to consider

1971-73 Honda CB500K Stock Type Air Filter ~ Replaces 17210-323-030 One element for the original CB500K airboxReferences 17210-323-030. One filter is supplied and one services the motorcycle’s original airbox.View part 39mm Round Pod Air Filter with Black End Cap Individually supplied black-end-cap podClamps to a compatible measured 39 mm inlet. Washable media is supplied dry; order one pod per carburetor inlet.View part 1971-76 Honda CB550K / CB500K Carburetor Stabilizer Bracket Separate stainless carburetor supportThe Canadian-made bracket supports the compatible four-carb rack after stock airbox support is removed. Filters are not named in its contents.View part

Count filters for the actual intake configuration

One stock-type element serves the original airbox, whereas the selected pods are individually supplied for each inlet. Four pods make the complete four-carb set only when the measured 39 mm inlet and available space are suitable. Confirm changed carburetors rather than choosing a clamp diameter by engine size.

Plan support and setup work with an intake change

Removing the stock airbox changes rack support as well as filtration. The bracket is a separate support choice, and the pod listing does not establish the correct jetting for a modified intake. Compare clearances, inlet dimensions and the complete intake/exhaust arrangement before planning the conversion and its tuning.

Common questions

What must be retained for the stock-type filter to be the correct choice?

The original-airbox filter references 17210-323-030 and supplies one element for the CB500K’s original airbox. Confirm that arrangement still exists. Individually clamped pods instead need a measured inlet fit, so the motorcycle year alone does not identify the intake currently installed.

What needs checking before selecting the black-end-cap pod?

Measure the outside diameter of the fitted carburetor inlet for the specified 39 mm clamp-on fit and compare available clearance. Each washable filter is supplied individually and dry, with four needed for the complete rack; suitable light filter oil is permitted when needed.

When should rack support be included in a pod-filter plan?

The bracket source explains that the stock airbox also supports the carburetors. Removing it can require the separately offered stainless rack bracket for the compatible setup. One bracket supports the rack; identify the actual intake and support arrangement before adding that hardware.

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