Yamaha DT125 / RD125 / TY125 Fork Oil & Dust Seal Set 30x40.5
Brand-new unbranded 30 x 40.5 x 10.5 mm fork oil and dust seal set for selected classic Yamaha DT125, RD125 and TY125 motorcycles.
Seal Size
- Fork oil seal: 30 x 40.5 x 10.5 mm
- Position: Front forks
- Product type: Fork oil and dust seal set
- Condition: Brand new
- Type: Unbranded aftermarket replacement
Vehicle Compatibility
| Make | Model | Years | Evidence / Notes |
|---|---|---|---|
| Yamaha | DT125 / DT125E | 1974–1979 | Aftermarket 4-piece kit and independent 30 x 40.5 x 10.5 oil-seal catalogues |
| Yamaha | RD125 | 1978–1979 | Aftermarket 4-piece kit cross-fit |
| Yamaha | TY125 | 1980 | Aftermarket 4-piece kit cross-fit |
Important Fitment Information
Classic Yamaha models used multiple fork types across markets and years. The years above are limited to aftermarket catalogues that specifically group these models with the 30 x 40.5 x 10.5 mm complete seal kit.
This is an aftermarket dimensional cross-fit application. The models above are supported by complete oil-and-dust-seal kit catalogues using the same 30 x 40.5 x 10.5 mm oil-seal family, but their original OEM dust-seal part numbers can differ from Yamaha YBR125 BF7/4GU references.
Before ordering, compare the fork-tube diameter, oil-seal dimensions, dust-wiper outer profile and seating depth with the seals removed from the motorcycle.
What's Included
Fork oil and dust seals as supplied. The current Shopify export does not independently verify the exact number of individual seals in the pack.
Installation
Fork service is safety-critical. Inspect the fork tubes for pitting or scoring, install seals squarely without damaging the lips, and refill the forks with the correct oil grade and level for the motorcycle.