Honda CB400 Fork Seals
The Honda CB400 runs a 33 mm conventional front fork.Every kit here is verified by the manufacturer to fit this exact bike. Fork seals can share a size and still not seat in a different fork, so we only list what is confirmed for your bike.
- Fork tube33 mm
- Fork typeConventional
| Kit | Years | Seal size | Replaces OEM |
|---|---|---|---|
| 55-107 | 1978 | 33x46x11 | n/a |
| 55-119 | 1989–1990 | 41x54x11 | BMW 31422312838, BMW 31428358444 |
| 57-115 | 1989–1990 | n/a | n/a |
| 57-131 | 1978 | n/a | n/a |
| 56-114 | 1978 | n/a | n/a |
| 38-6090 (bushings) | 1989–1990 | n/a | n/a |
Verified fork kits we stock for your Honda CB400
Fork Seal Kit
Fork Oil Seal Kit — Honda ATC200X (1983-1987) +
$19.12
Fork Seal Kit
Fork Oil Seal Kit — BMW F650 (1997-1999) + 353
$18.24
Fork Seal Kit
Fork Dust Seal Kit — BMW F650 (1997-1999) + 325
$19.50
Fork Seal Kit
Fork Dust Seal Kit — Honda CB360 (1974-1977) +
$20.62
Fork Seal Kit
Fork Oil & Dust Seal Kit — Honda CM450A
$39.78
Fork Bushing Kit
Fork Bushing Kit — Honda CB1100 (2013-2014) +
$50.56
Fork oil for your Honda CB400
A fork-oil change on the Honda CB400 uses 10wt fork oil. Factory fill: OE ATF/10W-30 engine oil (pre-fork-oil era); modern 10wt.
