Part number 91110552951 is a new, unused, Genuine Porsche engine timing chain. Timing chains are like timing belts in that they keep the major components of the engine's combustion cycle in sync. Timing chains are much more durable then timing belts and have to be changed less frequently. While timing belts are changed anywhere from every 40-90K miles (see your owners manual), most timing chains are suitable for hundreds of thousands of miles unless a specific event (like excessive noise, etc.) has occurred.
A DIY will go much smoother with the right parts. Genuine Porsche parts are known for precise engineering and fitment, which exactly what you can expect from every part online on FCP Euro.
FCP Euro provides one of the most comprehensive online automotive parts and accessories catalog for European car makes such as Volvo, BMW, Audi, Saab, Volkswagen, Mercedes, Porsche, and Jaguar. With popular OEM and Aftermarket brands such as Lemforder and Bosch, FCP Euro helps European car enthusiast maintain the longevity and performance of their vehicles.
FCP Euro offers free shipping over $49, a hassle free unlimited returns policy, lifetime warranty on all products they sell, and an in-house call center dedicated to helping customers with their repair and purchase needs.