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  • 1971-76 Honda CB550K / CB500K Jet Needle Set ~ Replaces 16012-323-004
Honda CB550K CB500K jet needle set 16012-323-004
Carburetor jet needle set parts fiche diagram, SKU 99-5330, highlighted reference 3
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60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
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Honda CB550K CB500K jet needle set 16012-323-004

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Load image into Gallery viewer, Honda CB550K CB500K jet needle set 16012-323-004
Load image into Gallery viewer, Carburetor jet needle set parts fiche diagram, SKU 99-5330, highlighted reference 3

1971-76 Honda CB550K / CB500K Jet Needle Set ~ Replaces 16012-323-004

99-5330
$24.95 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 1,348 store reviews
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
Browse all parts
1971-76 Honda CB550K / CB500K Jet Needle Set ~ Replaces 16012-323-004
$24.95 USD
Description

Upgrade or restore your classic Honda motorcycle with this Jet Needle Set — high‑quality replacement components designed to match OEM performance standards. This needle set replaces OEM part #16012‑323‑004 and includes all items shown in the photo for proper function. Ideal for classic Honda CB500 and CB550 Four carburetors.

Whether you’re tuning for performance or refreshing worn carburetor parts during a restoration, trust this needle set for accurate performance and reliable operation.

Key Features
• Replaces OEM part number: 16012‑323‑004
• Includes all contents shown in photo
• High‑quality replacement carburetor needle set
• Designed to help maintain proper fuel delivery and rideability
• Our Part Number: 99‑5330
• Honda part name: Needle Set, Jet

Fitment / Compatibility
• CB500/K1/K2 (1971‑73) 500 Four
• CB550K0/K1/K2 (1974‑76) 550 Four


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

Make Model Year
Honda CB500K0 1971
Honda CB500K1 1972
Honda CB500K2 1973
Honda CB550K0 1974
Honda CB550K1 1975
Honda CB550K2 1976

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.

See full shipping details

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.

Start your return below. Wait for our instructions before mailing a part back.

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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

How many Honda jet-needle sets 16012-323-004 are included?

One jet-needle set replacing Honda OEM 16012-323-004 is included for one carburetor. A 1971-1976 CB500K or CB550K uses four carburetors, so four matching sets are needed when servicing every carburetor.

Why must jet needle 16012-323-004 be matched to the carburetor?

Needle taper, clip arrangement and companion needle jet affect fuel delivery through the midrange. Confirm the carburetor identification, Honda part number and original needle code rather than choosing by motorcycle appearance alone.

Should all four carburetors receive the same needle setup?

Use the Honda specification for the exact model and carburetor set, install clips or spacers in the specified positions and synchronize the carburetors after assembly. Do not use needle position to hide blocked jets, air leaks or incorrect float height.

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