Yamaha DT125 Fork Seals
Fork specs for the Yamaha DT125 vary by year (see the table below).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.
| Years | Fork tube |
|---|---|
| 1974–1976 | 30 mm |
| 1978 | 31 mm |
| Kit | Years | Seal size | Replaces OEM |
|---|---|---|---|
| 55-102 | 1974–1976 | 30x40.5x10.5 | n/a |
| 55-117 | 1999–2006 | 41x53x8 | Aprilia 2B004402 |
| 57-118 | 1999–2006 | n/a | n/a |
| 57-123 | 1974–1975 | n/a | n/a |
| 55-104 | 1978 | 31x43x10 | n/a |
| 56-105 | 1974–1975 | n/a | n/a |
| 56-130 | 1999–2006 | n/a | n/a |
Verified fork kits we stock for your Yamaha DT125
Fork Seal Kit
Fork Oil Seal Kit — Kawasaki KE100 (1976-2001) +
$18.24
Fork Seal Kit
Fork Oil Seal Kit — Aprilia Dorsoduro 900
$18.24
Fork Seal Kit
Fork Dust Seal Kit — BMW G310GS (2018-2021) + 14
$21.01
Fork Seal Kit
Fork Oil Seal Kit — Honda ADV150 (2021-2023) +
$19.12
Fork Seal Kit
Fork Oil & Dust Seal Kit — Kawasaki KE100
$38.50
Fork Seal Kit
Fork Oil & Dust Seal Kit — BMW G310GS
$40.57
Fork oil for your Yamaha DT125
A fork-oil change on the Yamaha DT125 uses 10wt fork oil. Factory fill: SAE10W (KYB G10 / equiv).
