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1975 Honda CB400F Tank, Cap, and Petcock

The tank does not include a cap, a petcock, or emblems. The petcock sold for that tank is M14 x 1.0 and is a stock replacement only on a CB125S. Caps that name this bike are 1975-76.

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Currently viewing Gas Tanks, Caps, Petcocks & Parts

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Honda CB750 CB550 CB500 CB400 CB360 gas cap rubber seal 17534-323-300

Honda CB Gas Cap Rubber Seal ~ Replaces 17534-323-300

$8.19 $7.95 USD
You save $0.24
20-0039
Replace your mid-'70s Honda gas cap rubber seal with this Gas Cap Rubber Seal, replacing OEM #17534-323-300. Broad fitment across the SOHC CB750K, CB500/CB550...
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 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 CB400F CB125S fuel petcock 16950-GF6-015

1975-81 Honda CB400F / CB125S Fuel Petcock ~ Replaces 16950-GF6-015

$13.51 USD
12-0078
Fit a petcock to our CB400F aftermarket gas tank or replace the stock one on your CB125S with this Fuel Petcock. An M14 x...
Honda CB front fuel tank rubber cushion 17611-KE8-000

Front Fuel Tank Rubber Cushion ~ Replaces Honda OEM 17611-KE8-000

$5.50 USD
27-5520
This aftermarket front fuel tank rubber cushion replaces Honda OEM 17611-KE8-000 on the listed Honda CB-series applications. It mounts to the frame and supports...
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 CB400F stock type tank assembly

1975-76 Honda CB400F Stock Type Tank Assembly

$449.00 USD
73-1166
Replacement stock-type fuel tank for restoring your CB400F's frame to a complete, ride-ready condition. Comes in primer grey straight out of the box, ready...
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1975 Honda CB400F · Gas Tanks, Caps, Petcocks & Parts Buying guide

Tank year, then which pieces the cap includes

A 1975 tank can use the 1975-76 tank and the 1975-76 caps. The chrome cap includes a gasket and hinge pin. The matte cap adds the latch parts. Neither one is the tank.

Parts to consider

1975-76 Honda CB400F Stock Type Tank Assembly 1975-76 stock-type tankPrimer grey. Requires petcock 12-0078, M14 x 1.0. Cap 20-0045, emblems, and other hardware are not included. It does not accept a stock-type petcock.View part Honda CB OEM Type Filler Chrome Cap ~ Replaces 17510-323-310 Chrome capReplaces 17510-323-310. Includes the gasket and the hinge pin with E-clip. Names CB400F 1975-76. The latch is a separate part.View part Honda CB Matte Black Fuel Tank Cap with Latch ~ Replaces 17510-323-310 Matte cap with latchSame Honda number, 17510-323-310, for 1975-76. Includes the gasket, hinge pin with E-clip, latch, return spring, pin, and C-clip.View part

Related parts: Cap seal, 1975-76 · Front tank cushion · M14 petcock for this tank

1977 is outside the cap and tank year line

The tank, the chrome cap, the matte cap, the cap seal, and the latch name CB400F 1975-76. The front tank cushion replaces 17611-KE8-000, also replaces 17611-286-000, and names the 1975-77 CB400F. It is sold individually, and the text says most applications use two.

Latch pieces differ by finish

The black latch and the chrome latch each include the latch, return spring, mounting pin, and C-clip, and both name CB400F 1975-76. The matte cap already includes that latch. The chrome cap does not.

Tank questions

Will a stock petcock fit this tank?

No. The tank text says it does not accept a stock-type petcock. It needs a 14mm x 1.0 petcock, and 12-0078 is the one confirmed for this tank.

What is the difference between the two caps?

Both replace 17510-323-310 for 1975-76. The chrome cap includes the gasket and hinge pin. The matte cap adds the latch, return spring, pin, and C-clip.

Does the cap seal include 1977?

No. It replaces 17534-323-300 and names CB400F 1975-76.

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