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1972 Honda CL450K5 Fuel System Parts

Fuel-system work on a 1972 Honda CL450K5 should follow the components actually installed, from the tank connection to the carburetor joint. Choose cap hardware by its contents, check the petcock thread and identify the carburetors before assembling their repair order.

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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 CB550 CB500 CB450 type filler chrome cap 17510-323-310

Honda CB OEM Type Filler Chrome Cap ~ Replaces 17510-323-310

$49.95 USD
20-0045
Replace your OEM-type filler cap with this OEM Type Gas/Fuel Tank Chrome Cap, including gasket and hinge pin with E-clip for easy installation. Replaces...
Honda CB750 CB550 CB500 CB450 CB400 gas fuel tank cap latch assembly

Honda CB Gas/Fuel Tank Cap Latch Assembly

$44.95 USD
20-0083
Replace your gas cap latch with this Gas/Fuel Tank Cap Latch Assembly. Includes a chrome latch, return spring, latch mounting pin, and C-clip.Key Features•...
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 CB450 CB350 CL350K3 gas cap rubber seal 17525-300-000

Honda CB Gas Cap Rubber Seal ~ Replaces 17525-300-000

$5.95 USD
20-0038
Replace your early Honda gas cap rubber seal with this Gas Cap Rubber Seal, replacing OEM #17525-300-000. Fits the earliest CB750K, CB450K/CL450K, and CB350K/CL350K/SL350K.Key...
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 CB550 CB450 CB400F fuel tank cap latch 17510-323-310

Honda CB Matte Black Fuel Tank Cap with Latch ~ Replaces 17510-323-310

$69.95 USD
07-9967
Restore your classic Honda's tank with a factory-look matte-black finish using this Matte Black OEM-Type Fuel Tank Cap with Latch Assembly. A direct replacement...
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 CB450K CL450K5 CL450K6 carb rebuild kit

1972-74 Honda CB450K / CL450K5 / CL450K6 Carb Rebuild Kit

$20.95 USD
48-1396
Rebuild your later 5-speed CB450 or CL450 carbs with this Carb Rebuild Kit, designed for the 5-speed 450s.Note: each kit rebuilds one carb, order...
Honda CB750 CB550 CB400F CB450 CB360 tank cap latch assembly black

Honda CB Gas/Fuel Tank Cap Latch Assembly ~ Black

$29.95 USD
01-9934
Replace a broken, missing, or worn-out fuel cap latch with this Gas/Fuel Tank Cap Latch Assembly in black. Includes the black latch, return spring,...
Honda CB750 CB550 joker machine black gas tank cap latch assembly

Honda CB Joker Machine Black Gas Tank Cap Latch Assembly

$79.95 USD
73-1157
Upgrade your fuel tank latch with the Joker Machine Custom Black Gas/Fuel Tank Cap Latch Assembly. Designed as a premium alternative to the discontinued...
Honda CB750 CB550 CB500 joker machine billet black flip-up gas cap

Honda CB Joker Machine Billet Black Flip-Up Gas Cap

$149.95 USD
73-1156
Joker Machine’s Custom Black Flip-Up Billet Gas Cap is a beautifully crafted upgrade to your original tank cap. CNC-machined from solid 1" thick billet...
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....
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1972 Honda CL450K5 · Fuel System Parts Buying guide

Check the tank and carburetor parts independently

The tank fittings offer different cap and latch packages, while carburetor parts have individual repair scopes. Use those distinctions to avoid duplicate hardware and assumptions about the equipment fitted during earlier work.

Parts to consider

Honda CB Fuel Petcock ~ Replaces 16950-292-000 Threaded fuel petcockM16 × 1.5 tank connection, referenced to 16950-292-000. Measure the actual tank fitting before purchase.View part Honda CB OEM Type Filler Chrome Cap ~ Replaces 17510-323-310 Chrome cap with gasket and hinge pinIncludes a gasket and hinge pin with E-clip. Review the tank’s latch separately when completing the order.View part Honda CB Matte Black Fuel Tank Cap with Latch ~ Replaces 17510-323-310 Matte-black cap and latch packageCap with gasket and hinge pin/E-clip, plus latch, return spring, latch mounting pin and C-clip.View part

Related parts: Later-application carb rebuild kit · Float needle-and-seat set · Single carb holder with gasket

Resolve tank hardware as a complete order

The petcock has M16 × 1.5 threads, which need comparison with the actual tank connection. The chrome cap includes gasket and hinge hardware; the matte-black assembly also includes the latch mechanism. Inspect what can be retained before adding separate latch parts to either option.

Count carburetor repair positions

The linked rebuild kit services one carburetor, and the linked holder supplies one holder with gasket. The separate float-valve product contains a needle and seat. Verify the kit’s individual contents and fitted carburetor before combining those parts into an order for the planned repair.

Buying questions

What should lead the petcock choice after a replacement tank was fitted?

Measure that tank’s connection and compare it with the offered M16 × 1.5 thread, then check outlet and mounting clearance. A frame-year match cannot identify the fitting used by a substituted tank.

Does a rebuild kit’s motorcycle application mean it services the whole bike?

The linked kit is explicitly for one carburetor. Identify each carburetor being repaired and confirm the kit application, then choose the number of kits required rather than treating model coverage as package quantity.

Can I order the separate float valve without checking the rebuild kit contents?

The separate set contains a needle and seat, while the kit description does not itemize every included piece. Confirm the kit contents first if both are being considered, to avoid duplicating the same repair parts.

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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