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  • Honda CB Air Cut Off Valve With Cover ~ Replaces 16048-429-771
Honda CB900 CB750 CB650 air cut off valve with cover 16048-429-771
Air-cut valve kit with cover, SKU 48-9029: product photo and reviewed parts fiche. Example diagram; check listing for fitment.
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Honda CB900 CB750 CB650 air cut off valve with cover 16048-429-771

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Load image into Gallery viewer, Honda CB900 CB750 CB650 air cut off valve with cover 16048-429-771
Load image into Gallery viewer, Air-cut valve kit with cover, SKU 48-9029: product photo and reviewed parts fiche. Example diagram; check listing for fitment.

Honda CB Air Cut Off Valve With Cover ~ Replaces 16048-429-771

48-9029
$34.95 USD
In stock Usually ships the same or next business day
Check model fitment View fitment
Questions about this part? Contact us 4.8/5 1,347 store reviews
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
Browse all parts
Honda CB Air Cut Off Valve With Cover ~ Replaces 16048-429-771
$34.95 USD
Description

Replace your carb air cut-off valve with this Carb Air Cut-Off Valve with Cover. Replaces OEM #16048-429-771 (diaphragm), #16048-425-771 (spring + 1 O-ring), and #16048-429-771 (cover).

Key Features
• Carb air cut-off valve with cover
• Includes diaphragm, spring + O-ring, cover
• Replaces OEM #16048-429-771 (diaphragm) / #16048-425-771 (spring + O-ring) / #16048-429-771 (cover)
• Honda part name: Valve Set, Air Cut
• Superseded by Honda 16048-443-901

Fitment / Compatibility

• Honda CB750K (1980‑82)
• CB750F (1980‑82) Supersport
• CB750C (1980‑82) Custom

• Honda CB750SC (1982‑83) Nighthawk

• Honda CB900C (1980‑82) Custom
• CB900F (1981‑82) Supersport

• Honda CB650 (1980)
• CB650C (1980) Custom

• Honda CB400T (1980‑81)
• CB450SC (1982) Nighthawk
• CB450T (1982)

Part Number: 48-9029

Read More
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Check the listed model and year, then read any fitment notes in the description.

Make Model Year
Honda CB750K 1980
Honda CB750F 1980
Honda CB750C Custom 1980
Honda CB750K 1981
Honda CB750F 1981
Honda CB750C 1981
Honda CB750K 1982
Honda CB750F 1982
Honda CB750C 1982
Honda CB750SC Nighthawk 1982
Honda CB750SC 1983
Honda CB900C Custom 1980
Honda CB900C 1981
Honda CB900F Supersport 1981
Honda CB900C 1982
Honda CB900F 1982
Honda CB650 1980
Honda CB650C Custom 1980
Honda CB400TA Hawk 1980
Honda CB400TB Hawk 1981
Honda CB450SCC Nighthawk 1982
Honda CB450TC 1982

Free ground shipping over $50

To the USA & Canada. In-stock orders usually ship from our own warehouse the same or next business day.

Estimated ground delivery after your order ships
DestinationDelivery time
USA4–7 business days
Canada2–6 business days

Ground shipping includes tracking, emailed when your order ships. Need it sooner? Express options are available at checkout.

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60-day returns on eligible parts

No restocking fees. Eligible parts must be unused, uninstalled, unaltered and complete. The 60-day window starts when your order is delivered.

Electrical parts are excluded from standard returns. Check return eligibility.

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Other shipping options

Canada Post Economy: Available at checkout for select small items. Allow 1–3 weeks for delivery. No tracking or insurance is included.

Outside the USA & Canada: Delivery times vary by destination and shipping method. Buyers are responsible for applicable duties, taxes and import fees. We cannot mark orders as gifts.

Frequently Asked Questions

What is included with the Honda carburetor air cut-off valve?

One air cut-off valve assembly is included with diaphragm, spring, O-ring and cover.

Which Honda air cut-off valve references does part 48-9029 replace?

It references Honda OEM 16048-429-771 for the diaphragm and cover, plus 16048-425-771 for the spring and O-ring assembly.

What should be checked when replacing an air cut-off valve?

Inspect the vacuum passage and cover sealing surface, install the diaphragm without pinching it and verify the spring and O-ring are correctly seated before tightening the cover.

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