Part#: 911.101.172.00
Availability: In Stock
Cylinder Head Stud, Steel This is the plain steel version of the 911 Cylinder head stud. This stud can be used on all 911 engines from 1965-89 models. However, for aluminum crankcase models like the 911SC, Porsche recommends using this style of stud only on the Intake side (top of the engine crankcase), and using Dilavar studs on the Exhaust side (bottom side of crankcase). Turbo / 930 models should be using Dilavar studs on both top and bottom sides of the engine. Sold per each, 24 required per engine when using on both top and bottom, or 12 required when using just on the intake side.
Aftermarket Our founders have worked on Porsche cars for decades. They've tried most of our aftermarket products first hand on real cars. Some parts are no longer made by an O.E.M company, or the price difference between genuine and aftermarket has become so large that it makes sense to take the savings. If you have any questions about an aftermarket product, please contact us.
All returns require pre-approval. All returns are subject to a 25% restocking fee, with the exception of approved warranty returns, or if we ship a different part number than ordered. We do not accept returns after 30 days. Inspect your order immediately when it arrives. We must be notified within 5 days if there are any missing, damaged, or incorrect parts. Returns (except warranty) won't be accepted if the part: - Has been installed, used, damaged, is dirty or incomplete - Is not sellable as new - Arrived in sealed packaging that has been opened - Is an electrical part, a distributor spring, a custom or cut-to-length item, or a Special Order - Was purchased more than 30 days earlier Parts must be returned properly padded in a sturdy cardboard box. Returns sent in envelopes will be refused. Items damaged in transit to us cannot be refunded. All returns must be shipped prepaid.