Genuine Valve Stem Seal RSV4, Tuono V4, Dorsorduro, item number 436438
Fitment - RSV4 09-20, Tuono V4 11-20, Dorsoduro 750 09-16, 900 18-20
Genuine Aprilia motorcycle part Valve Stem Seal, number 436438. These are a direct replacement for the ones fitted in the factory.
Valve stem seals provide a defined metering rate of oil to the valve stem interface of the internal combustion engine to lubricate the valve guide and minimize engine emissions. Over time and with continued hard usage, they can deteriorate and become ineffective and the blue-white exhaust smoke will last longer after start-up and acceleration.
Please contact us for further information on how to replace them and what to check for, or why not book your bike in for us to investigate and complete the task for you. As we have a fully equipped workshop, and over 30 years experience in the motorbike industry, you can have peace of mind knowing the job will be completed right first time.