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1966 Honda CB450K Fuel System & Carburetor Parts

Trace your 1966 CB450K parts order from the tank to the carburetors. Tank fittings, carb holders and internal service parts have different checks. Match the components on the motorcycle first, then separate a targeted repair from a larger carburetor rebuild.

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Most orders ship same or next business day Fitment guarantee Listed for your exact model and year? We’ll make it right if it doesn’t fit as described. Mechanic-backed support Ask our team for help choosing the right Honda CB part.
Currently viewing Fuel System

Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

Honda CB front fuel tank holder rubber 17611-283-010

Honda CB Front Fuel Tank Holder Rubber ~ Replaces 17611-283-010

$7.87 USD
02-6534
Secure the front of your fuel tank with this Front Fuel Tank Holder Rubber, a direct replacement for OEM #17611-283-010. Fits a broad range...
Honda CB750 CB500 CB450 CB125 CB100 float valve 16011-302-004

Honda CB Float Valve ~ Replaces 16011-302-004

$9.95 USD
48-5009
Replace your float needle and seat with this Float Valve Set (needle and seat), replacing OEM #16011-302-004 / #16011-375-004.Key Features• Float valve set (needle...
Honda CB750 CB550 CB450 CB400 CB350 gas cap rubber seal 17631-329-003

Honda CB Gas Cap Rubber Seal ~ Replaces 17631-329-003

$7.95 USD
20-0097
Replace the broad-fitment gas cap rubber seal on many classic Hondas with this Gas Cap Rubber Seal, replacing OEM #17631-329-003. Exceptionally wide fitment covering...
Honda CB750 CB550 CB500 CB450 CB400 float bowl drain screw

Honda CB Stock Type Float Bowl Drain Screw

$7.50 USD
48-5041
Replace your stock-type float bowl drain screw with this Float Bowl Drain Screw with O-Ring.Note: sold each, order the quantity you require.Key Features• Stock-type...
Honda CB450 CB360 CB350 CL350K0 CL350K2 fuel petcock 16950-292-000

Honda CB Fuel Petcock ~ Replaces 16950-292-000

$34.95 USD
29-0542
Replace your CB450, CL450, CB350, or CB360 fuel petcock with this Fuel Petcock, replacing OEM #16950-292-000 with M16 x 1.5 threads. Please verify the...
Honda CB750 CB450 CB350 CB200 CB175 front cable clip 45465-270-000

Honda CB Front Cable Clip ~ Replaces 45465-270-000

$7.00 USD
73-1116
Keep your wiring clean and secure with this Front Cable Clip, designed to hold the stop switch wires neatly against the front cable. Replaces...
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Honda CB450 premium carb rebuild kit

1965-74 Honda CB450 Premium Carb Rebuild Kit

$21.95 USD
48-1228
Restore smooth fuel delivery with this Premium Carburetor Rebuild Kit, designed to refresh worn components inside your carburetor and restore proper performance. This kit...
New
Honda CB450 CL450 CB350 CB72 gas tank filler cap 17620-402-000

Honda Gas Tank Filler Cap ~ Replaces 17620-402-000

$7.95 USD
07-4647
Restore an early-era Honda with this Chrome Gas Tank Filler Cap (with gasket installed), replacing OEM #17620-402-000 / #17620-402-010. Fits the oldest models in...
Universal motorcycle carburetor synchronizer vacuum gauge 2 carb synchronizer

Universal Motorcycle Carburetor Synchronizer Vacuum Gauge ~ 2 Carb Synchronizer

$54.95 USD
37-0003
Carburetor and throttle body synchronizer kit for bikes with 2 Carbs. Makes synching your carburetor setup fast and easy! For use with Honda, Kawasaki,...
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Honda CB500 CB450 CL450K0 CL450K2 CL450K3 carb float 16013-283-004

Honda CB Carb Float ~ Replaces 16013-283-004

$17.95 USD
20-6512
Replace your CB500T or CB450/CL450 carb float with this Carb Float with Pin, replacing OEM #16013-283-004.Sold each, order the quantity your bike requires.Key Features•...
Universal motorcycle 49mm chrome cap pod air filter

Universal Motorcycle 49mm Chrome Cap POD Air Filter

$24.95 USD
15-0034
49mm Chrome Cap POD Air Filter for custom or restoration work on classic Honda CB motorcycles. Measure the outside diameter of the carburetor inlet...
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Honda CB450 CL450K0 CL450K2 CL450K3 CL450K4 carb holder 16211-283-000

Honda CB Carb Holder ~ Replaces 16211-283-000

$23.95 USD
48-1475
Replace a single CB450 or CL450 carb holder with gasket using this Carb Holder with Gasket, replacing OEM #16211-283-000.Note: this is for one holder....
Honda CB500T CB450 CB360 CB350 slow pilot jet #35 99124-286-0351

Honda CB500T / CB450 / CB360 / CB350 Slow / Pilot Jet #35 ~ Replaces 99124-286-0351

$7.00 USD
48-1587
Restore clean idle and low-speed fuel metering with this aftermarket Keihin-style slow / pilot jet, size #35. It replaces Honda OEM #99124-286-0351 for the...
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1966 Honda CB450K · Fuel System Buying guide

Build the fuel-system order around the repair

A petcock needs the correct tank thread, a carb holder needs the correct mounting arrangement, and internal carb parts need a match to the carburetor fitted. The available kit does not replace every component along that path.

Parts to consider

1965-74 Honda CB450 Premium Carb Rebuild Kit Premium carburetor rebuild kitSupplies internal service parts for one carburetor, including a #125 main jet, #40 pilot jet, D8 needle, float needle and #2.0 seat, gaskets and listed small parts. Compare the contents with your installed carburetor.View part Honda CB Fuel Petcock ~ Replaces 16950-292-000 M16 × 1.5 fuel petcockFuel tap referencing Honda 16950-292-000 with M16 × 1.5 mounting threads. Verify the threads on the tank actually fitted to your motorcycle before selecting this replacement.View part Honda CB Carb Holder ~ Replaces 16211-283-000 Carburetor holder with gasketOne holder with its gasket, referencing Honda 16211-283-000. The listing specifies two used per motorcycle; order two to replace both. Band clamps are a separate purchase.View part

Related parts: Carburetor float with pin · Chrome filler cap with gasket · Two-gauge vacuum synchronizer

Start at the component that needs attention

This selection offers individual tank and carburetor parts as well as a rebuild kit. Identify what needs replacement before ordering: a filler-cap seal, mounting cushion, float and float valve are different pieces. Check the actual tank and carburetors, particularly if a previous owner changed either assembly.

Plan sealing parts and tuning separately

The holder listing includes its gasket but requires separate clamps. The rebuild kit supplies a #125 main, #40 pilot and D8 needle; those are contents, not a universal calibration prescription. If using the vacuum synchronizer, confirm accessible compatible connections rather than assuming its 5mm extensions fit your carburetors.

Buying questions for your CB450K

Will the carburetor kit cover a replacement float and intake holder?

Its listed contents include a float needle and seat, but not the float or carb holder. Those appear as separate products. Compare the full kit list with the damaged parts, so a rebuild order does not miss an external mounting part or the float itself.

Does the model listing confirm the petcock will fit a replacement tank?

The petcock specifies M16 × 1.5 threads and asks you to verify them before ordering. A replacement tank may have another outlet, so use the threads on the tank you have rather than relying on the motorcycle’s year alone.

Should the separately sold #35 pilot jet go with every rebuild kit?

Choose it only after checking the jet pattern and the size intended for your installed carburetor. The kit lists a #40 pilot; the separate #35 is another metering choice. The two listings do not establish a required combination.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

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