Description
This set replaces the original cylinder head bolts with high-strength Pro-Series 18.8 stud bolts. This is necessary For significant Performance increases, as the original cylinder head bolts can elongate during operation and the cylinder head can lift off. The Pro-Series 18.8 stud bolts with a tensile strength of 1850 N/mmý provide a remedy here. In addition, these stud bolts do not need to be replaced after disassembly, but can be reused.
Technical data:
Part number: P117011610
Contents of the Kit:
16 stud bolts (M12)
16 nuts (M12)
16 washers
Lubricant For assembly
Assembly instructions
Tensile strength:
PS 18.8 steel
1850+ N/mmý (270,000+ PSI)
High-quality materials and production
The Pro-Series 18.8 sets are high-strength stud bolts made in Germany. A special steel is used which has a tensile strength of 1850+ N/mmý after tempering. All threads are Formed and not cut, as is customary in the trade. By rolling the threads, the strength of the tooth flanks can be increased by approx. 30%. All products in the Pro series are supplied with a nickel coating or optionally with a black oxide coating and are thereFore protected against corrosion in the long term, even under the toughest conditions.
Easy installation and durability
The stud bolts in the Pro series have a hexagon socket drive on the head side For screwing in the stud bolts. Thanks to a cone on the motor block side of the stud bolt, these are not supported on the thread flanks when the nuts are tightened, but in the bore of the thread in the motor block. This support protects the threads during the frequent assembly of Racing engines. A major advantage of the Pro-Series over other manufacturers are the nuts and, if necessary, washers included in the set, as these also have a tensile strength of 1850 N/mmý.
Made in Germany
Warranty
Our warranty terms are based on each manufacturer’s guidelines. Depending on the specific manufacturer, customers may be eligible to process warranty claims either directly with the manufacturer or through us. For detailed information or assistance with warranty inquiries, please contact our support team.
Shipping & Returns
Shipping time will be provided once your order has been processed. Please note that shipping options cannot be changed after your order has been placed.
For returns, kindly contact our support team for guidance. We'll walk you through the process and ensure everything goes smoothly.
Frequently Asked Questions
OEM (Original Equipment Manufacturer) parts are made by the vehicle’s original manufacturer and guarantee perfect fit and performance. Aftermarket parts are produced by third-party companies and may offer enhanced performance or cost savings, but compatibility should always be verified before purchase.
Yes, we work with a network of certified and approved workshops to ensure professional installation of your performance parts. Get in touch with us to find a recommended installer near you.
Yes, but it’s important to ensure they work together without causing performance issues. Some aftermarket parts are designed to complement OEM components, while others may require full system upgrades.
Yes, once your order is shipped, a tracking number will be emailed to you.
Orders can only be modified or canceled before they are processed. Please reach out to us as soon as possible.
If you're not completely satisfied with your purchase, you may return it within 7 days of receiving your order for a full refund, excluding delivery costs. Please note that this policy does not apply to special order parts. To qualify for a refund, items must be unused and returned in their original packaging.