Yamaha YBR125 Front Fork Oil & Dust Seal Set
Brand-new unbranded replacement fork oil and dust seal set for selected Yamaha YBR125 models using the BF7 / 4GU seal-reference family.
Product Details
- Position: Front suspension / front forks
- Product: Fork oil and dust seal set
- Oil seal size: 30 x 40.5 x 10.5 mm
- Dust seal: BF7-F3144-00 / 4GU-F3144-00 Yamaha profile on YBR/YB applications; exact standalone dimensions are not reliably published in the Yamaha catalogues reviewed
- Yamaha oil-seal references: BF7-F3145-00 / 4GU-F3145-00
- Yamaha dust-seal references: BF7-F3144-00 / 4GU-F3144-00
- Condition: Brand new
- Type: Unbranded aftermarket replacement
Verified Seal Sizing
- Fork oil seal: 30 mm ID x 40.5 mm OD x 10.5 mm height
- Yamaha oil-seal references: BF7-F3145-00 / 4GU-F3145-00
- Yamaha dust-seal references: BF7-F3144-00 / 4GU-F3144-00
- Dust-seal dimensions: not reliably published by Yamaha in the catalogues reviewed; compare the supplied dust-wiper profile with the original part
Independent aftermarket catalogues also sell complete 30 x 40.5 x 10.5 mm oil-and-dust-seal kits for several other motorcycles. Those applications are treated as dimensional aftermarket cross-fitments rather than as Yamaha BF7/4GU OEM-reference matches.
Vehicle Compatibility
| Make | Model | Scope | Notes |
|---|---|---|---|
| Yamaha | YBR125 ED / ESD / EGS / E variants | Selected documented 2004–2025 applications | Uses BF7-F3145-00 oil seal and BF7-F3144-00 dust seal; older catalogues supersede 4GU references |
Important Fitment Information
Yamaha catalogues document this seal pair across multiple YBR125 variants and years. Do not use the old broad listing title as proof of MT-125 or YB125Z fitment: those models use different Yamaha seal references.
Yamaha part numbers are supplied for fitment identification only. This product is unbranded and is not represented as a Genuine Yamaha component.
Compare the original seal references and dimensions before ordering. Fork variants can differ by market and model revision.
What's Included
Fork oil and dust seals as supplied. Please refer to the product photographs for the exact pack quantity; the available export data does not independently confirm the number of individual seals in the pack.
Installation
Fork-seal replacement involves suspension disassembly and correct fork-oil setup. Inspect the fork tubes for corrosion or scoring before fitting new seals, as damaged tubes can quickly cause new seals to leak.