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1970 Honda CB450K Filler Caps, Latches & Tank Fittings

Compare the filler cap and latch on the tank fitted to your 1970 CB450K before choosing a replacement package. Chrome and matte-black caps list different contents. A latch or seal may suit a smaller repair, while the petcock and cushions need their own mounting checks.

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Currently viewing Gas Tanks, Caps, Petcocks & Parts

Honda motorcycle parts

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

Honda CB rear fuel tank holder rubber 17613-292-000

Honda CB Rear Fuel Tank Holder Rubber ~ Replaces 17613-292-000

$14.95 USD
02-6535
Secure your fuel tank at the rear with this Rear Fuel Tank Holder Rubber, a direct replacement for OEM #17613-292-000. One used per 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 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...
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Honda CB1000 CB900 CB750 fuel tank emblem clamp nut 87311-634-600

Honda CB Fuel Tank Emblem Clamp Nut ~ Replaces 87311-634-600

$6.25 USD
99-5267
Secure your fuel tank emblem properly with this Fuel Tank Emblem Clamp Nut, designed as a direct replacement for the original Honda hardware. This...
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 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...
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1970 Honda CB450K · Gas Tanks, Caps, Petcocks & Parts Buying guide

Read cap and latch contents before combining purchases

The chrome cap includes a gasket and hinge pin with E-clip. The matte-black cap also lists a complete latch assembly. A separate chrome latch package supplies latch, return spring, mounting pin and C-clip; a cap seal offers another focused repair choice.

Parts to consider

Honda CB OEM Type Filler Chrome Cap ~ Replaces 17510-323-310 Chrome filler cap and hinge hardwareCap referencing Honda 17510-323-310, with gasket and hinge pin with E-clip included. Compare the retained filler mounting. The description does not list the separate latch assembly among this cap’s supplied contents.View part Honda CB Matte Black Fuel Tank Cap with Latch ~ Replaces 17510-323-310 Matte-black cap with latch assemblyCap with gasket and hinge pin with E-clip, plus latch, return spring, latch mounting pin and C-clip. References Honda 17510-323-310. Compare the filler arrangement before selecting this complete stated package.View part Honda CB Gas/Fuel Tank Cap Latch Assembly Chrome latch repair assemblySupplies a chrome latch, return spring, latch mounting pin and C-clip. Compare the latch arrangement on the cap you intend to retain. The package is latch hardware rather than a complete filler cap.View part

Related parts: Separate cap rubber seal · M16 × 1.5 petcock · Individual front tank cushions

Distinguish the latch attachment hardware

The chrome and standard black latch assemblies list a mounting pin and C-clip. The Joker Machine black latch instead lists a latch, return spring, alloy screw and nut. Compare the retained cap and chosen latch’s attachment before assuming that every black latch uses the same hardware.

Keep the other tank fittings in the repair plan

The petcock requires verification of its M16 × 1.5 thread on the tank being used. Front cushions are sold each, with two stated per bike. Emblem clamp nuts serve the emblem attachment and are also sold individually; they do not substitute for tank-support rubbers.

Practical parts selection questions

Does the chrome cap list a new latch assembly as included?

Its stated contents are the cap, gasket and hinge pin with E-clip. A latch assembly is not itemized in that description. The matte-black cap expressly lists latch hardware as included; choose from the contents you actually need rather than assuming the packages match.

Is the black Joker Machine latch supplied with the same pin as the standard latch?

Its description lists an alloy screw and nut with the latch and return spring. The standard latch descriptions list a mounting pin and C-clip. Compare the existing attachment and the chosen latch package before planning the replacement.

What if I want to retain the cap and replace only its rubber seal?

The separate seal references Honda 17525-300-000 and is listed for the 1970 CB450K. Compare it with the seal and cap fitted to the tank. A cap changed during restoration needs that direct comparison before using the model application to select a seal.

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