Weistec has exclusively partnered with ARP, the top name in performance engine hardware. Head studs are used to fasten the heads to the block in place of the factory head bolts. The connection between the cylinder heads and the block is a complex part of the engine. Coolant and oil flow back and forth between the block and the cylinder heads. The head gasket keeps the coolant, oil, and air charge in the cylinders separate from each other with the help of pressure generated by the head bolts. The factory head bolts are "torque to yield" meaning that when installed, they are tightened to the point where they permanently stretch. The addition of out APR head studs suites the factory compressed M113K engine, especially when increasing boost pressures and power levels.
With 220,000+PSI of tensile strength, our ARP 2000 Head Studs are able to hold down the cylinder heads with far greater pressure than the factory head bolts, without permanent stretching. The result is a more reliable performance engine that will not be susceptible to leaks between the heads and block. Quality head studs are among the top items in the list of parts that allow an engine to reliably reach high power levels.
Key Features:
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220,000 psi Tensile Strength
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200,000 psi Yield Strength
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Complete replacement of factory head bolts
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Improved Head to Block connection eliminating leaks
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Reusable, unlike the factory bolts which are "one time use"
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Suited for severe duty boosted applications
Vehicle fitment
- 1997-2000 Mercedes-Benz C43 AMG Base
- 1997-2002 Mercedes-Benz E430 Base
- 1998-2001 Mercedes-Benz SL55 AMG Roadster
- 1998-2002 Mercedes-Benz CLK430 Coupe
- 1998-2006 Mercedes-Benz E55 AMG Base
- 1998-2008 Mercedes-Benz G500 Base
- 1999-2001 Mercedes-Benz ML430 Base
- 1999-2005 Mercedes-Benz S430 Base
- 1999-2005 Mercedes-Benz S500 Base
- 1999-2006 Mercedes-Benz SL500 Roadster
- 2000-2006 Mercedes-Benz CL500 Coupe
- 2000-2006 Mercedes-Benz CL55 AMG Coupe
- 2000-2006 Mercedes-Benz CLK55 AMG Coupe
- 2000-2006 Mercedes-Benz S55 AMG Base
- 2001-2005 Mercedes-Benz ML55 AMG Base
- 2001-2012 Mercedes-Benz G55 AMG Base
- 2003-2006 Mercedes-Benz E500 Base
- 2003-2008 Mercedes-Benz SL55 AMG Roadster
- 2004-2006 Mercedes-Benz CLS500 Coupe
- 2004-2006 Mercedes-Benz CLS55 AMG Coupe
- 2004-2007 Mercedes-Benz C55 AMG Base
- 2004-2011 Mercedes-Benz SLK55 AMG Roadster
- 2006-2008 Mercedes-Benz G550 Base
- 2006-2008 Mercedes-Benz SLK55 AMG Black Series
Installation manual
Weistec part number: 01-113-00791-3 · UPC: 810089562098
All products are shipped out from one of the Signature Autohaus shipping locations. Signature Autohaus drop ships some products and ships direct others. All products are shipped via FedEx, UPS, DHL or another qualified shipping carrier.
Special arrangements may need to be made for international orders and oversize packages.
In the event a product arrives damaged to your location, please follow the steps listed below. All damaged items must be reported to the shipping carrier immediately and you must notify Signature Autohaus within 5 days of receiving your order. If these steps are not followed, your shipment may not be able to be a candidate for a claim.
Complete the Shipping DAMAGE Claim Form by contacting the carrier that delivered your package.
1) Keep the product and its original packaging and box
Make a list of the damaged or lost item(s)
2) Signature Autohaus will contact the shipper once we receive the email info above to schedule a pickup, DO NOT send it back to us
3) Once the product is picked up and inspected by Signature Autohaus and or Supplier, a replacement or credit will be issued.
4) The Shipping Rates shown at time of checkout our dimensional rate only. If your shipment weight is to much then contact us for a shipping quote. If there is an error in the shipping rate quoted we will contact you and let you know of the changes. International orders(Outside the USA) are not automatically processed as we may require additional information from you.
If a product is ordered and not wanted, the UNUSED item can be returned for a 35% restocking fee. Shipping is not refundable in either direction. All items wanting to be return MUST be reported within 30 days of the original invoice date. No items will be returnable after 30 days. All products shipped from the Signature Autohaus warehouse are shipped via FedEx or Freight and require a signature when delivered. Some packages shipped from the manufacturer may or may not require signatures for package release. Fedex, UPS, and DHL have package pick up locations if you are unable to sign for the package. If the package is returned to Signature Autohaus or manufacturer, you will be responsible for the return shipping costs and pay a 35% restocking fee. These fees will be charged to your account on file.
SIGNATURE AUTOHAUS DOES NOT REFUND SHIPPING CHARGES. If you modify, install, or alter the item in any form, we cannot accept it as a return, will not cover any expenses related to the product or installation, and you maybe be required to purchase a replacement.
In the event that the product you ordered is sent either incorrectly or processed wrong by Signature Autohaus, we will arrange for the package to come back to us and ship out a replacement. We will evaluate the situation before we determine the shipment was incorrect.
To return a item back to us, please do the following:
1. Contact our Customer Service Department to receive a RMA number. All packages returned without a Returned Merchandise Authorization number will be refused.
2. Package the item up in original packaging unless deemed unuseable
3. Include the UNUSED parts and any additional information that was included
4. Include a copy of your receipt
5. Write a brief description of the problem with the product
6. If you have a receipt for the return shipping include as well
7. We DO NOT accept any freight collect packages
8. Once we have received the above information we will notify you via email or phone and let you know the status.