Answers use only the current dossier and general verification principles
This dossier records 3D8-12439-00-00 as a genuine OE number. Verify the applicable market and version.
Current evidence points to Yamaha XVS13ABCR (V STAR 1300 CA) 3D8H 2012, Yamaha XVS13ABR (V STAR 1300) 3D8G 2012, Yamaha XVS13ADB (V STAR 1300) 3D8K 2013. Verify the year, market and engine version against the original vehicle information.
Check the part number, model year, sales market, engine version, installation position and critical dimensions. Still missing: O-ring inner diameter, Cross-section diameter, Material, Supplier code, Minimum operating temperature, Maximum operating temperature, Fitment type, Shore A hardness.
There is currently no evidence-confirmed genuine replacement relationship, so direct replacement cannot be concluded.
The same model may use different numbers and specifications across years, markets, engines or trim versions; verify the complete vehicle environment.
The current parameter template is still missing O-ring inner diameter, Cross-section diameter, Material, Supplier code, Minimum operating temperature, Maximum operating temperature, Fitment type, Shore A hardness. Missing fields are never guessed automatically.