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Weistec M157 Head Studs Mercedes-Benz CL550|E550|GL450|GL550|GLE550|ML550|S550|S63 AMG|SL550|SL63 AMG 2011-2020

$1,769.00

Weistec

Model #01-157-01419-9


Shopper Award

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.

With 260,000+PSI of tensile strength, Weistec's ARP 625+ head studs are able to hold down the heads with far greater pressure than the factory head bolts, without permanent stretching. The result is a more reliable performance engine. Quality head studs are among the top items in the list of parts that allow an engine to reliably reach high power levels.

Features:

  • 260,000 PSI tensile strength
  • 255,000 PSI yield strength
  • Complete replacement of factory head bolts
  • Improved head to block connection eliminating leaks
  • Reusable, unlike the factory bolts which are "one time use"
  • Engine: M157
Fitment:
  • Mercedes-Benz W216 CL550 2011-2014
  • Mercedes-Benz W212 E550 2012-2013
  • Mercedes-Benz X166 GL450 2013-2014
  • Mercedes-Benz X166 GL550 2013-2015
  • Mercedes-Benz W166 GLE550 2016-2020
  • Mercedes-Benz C292 GLE550 Coupe 2016-2020
  • Mercedes-Benz W166 ML550 2012-2015
  • Mercedes-Benz W221 S550 2011-2017
  • Mercedes-Benz C217 S550 Coupe 2014-2017
  • Mercedes-Benz W221 S63 AMG 2012-2017
  • Mercedes-Benz C217 S63 AMG 2014-2017
  • Mercedes-Benz R231 SL550 2013-2020
  • Mercedes-Benz R231 SL63 AMG 2012-2020

Proposition 65

/!\ warningWARNING: Cancer and Reproductive Harm

https://www.P65Warnings.ca.gov

Vehicle Engine Notes
2011-2014
Mercedes-Benz CL550

2012-2013
Mercedes-Benz E550

2013-2014
Mercedes-Benz GL450

2013-2015
Mercedes-Benz GL550

2016-2017
Mercedes-Benz GLE550

2012-2015
Mercedes-Benz ML550

2011-2017
Mercedes-Benz S550

2012-2017
Mercedes-Benz S63 AMG

2013-2017
Mercedes-Benz SL550

2012-2019
Mercedes-Benz SL63 AMG

What Is Weistec Engineering?

Based out of Orange County, California, Weistec Engineering is an industry leader in research, development, and design. While the company was only established in late 2010, founder Michael Weiss and his partner Steve Atneyel both have an impressive track record of working with some of the fastest and most powerful vehicles in the world. The duo were both engineers for major American OEM and aftermarket performance companies; Michael was involved with advanced engineering, while Steve specialized in computer calibration.

Michael Weiss and Steve Atneyel decided to branch out on their own and combine their expertise and experience. The pair were, and still remain, avid Mercedes enthusiast and realized that there was a huge gap in the market for a company dedicated to engineering state-of-the-art performance systems for cars powered by motors like the M156 and M159 AMG. Since its inception over a decade ago, Weistec has grown to provide customers with the highest level of satisfaction and value through unyielding tests and continuous improvements in Mercedes products and performance. 

What Does Weistec Offer?

Engineering and design are the two core services of Weistec Engineering. The Weistec team offers an array of services and capabilities thanks to the team’s combined experience from multiple fields. Whether you have a new idea or are looking to improve an existing design, Weistec can bring your concept to reality while protecting your vehicle’s design form and engineering function. Services include CAD, CAM, rapid prototyping, CNC machining, laser cutting and etching, casting, plastic injection molding, 3D laser scanning, and much more.

Weistec Engineering also offers a comprehensive line of products to the import and exotic market, covering vehicles such as Mercedes-Benz, Audi, Pagani, Alfa Romeo, BMW, McLaren, Ford, Aston Martin, and Maserati. No matter what type of upgrade you are looking for, Weistec has something for everyone when it comes to performance products, suspension parts, electrical components, interior/exterior accessories, and wheels/tires.

Weistec Engineering keeps nearly every aspect of its production process in house to guarantee only the highest quality. From conceptual 3D designs to in-house manufacturing and, ultimately, road and track testing, Weistec boasts relentless attention to detail on everything it offers. Specializing in computer-aided design and vehicle calibration, Weistec has the ability to manufacture quality products that are capable of withstanding even the most rigorous testing conditions. From OEM vehicle manufacturers to the aftermarket performance enthusiast, Weistec aims to deliver innovative solutions that address a wide range of client needs and desires. 

Find Weistec Parts at Vivid Racing

Vivid Racing carries an extensive lineup of Weistec products to suit all your needs and preferences. Our inventory is virtually endless with everything you could possibly need to upgrade your vehicle in terms of performance, power, handling, suspension, aesthetics, and accessories. If you cannot find what you are looking for above or need help choosing a product for your needs, please give us a call at (480) 966-3040. We will advise you on the possible options and walk you through the entire purchase process to ensure a hassle-free experience.

Weistec Limited Warranty

1. Warranty on Weistec Turbocharger Systems, Supercharger Systems, Exhaust Systems and Engine Accessories

12 month Weistec Limited Warranty. Valid 12 months from sales date with valid registration.The following exclusions apply to all Weistec Limited Warranties.

Weistec's limited warranties do not cover any of the following damages or items:
  • Damages to and/or failure of any non-Weistec component or equipment on a vehicle including, but not limited to, the engine, electrical system, transmission and differentials.
  • Damage caused by "Acts of God", normal wear and tear, or damage to a vehicle or engine caused by, tuning by others, collision and/or engine failure.
  • Any costs incurred for towing or downtime of the vehicle.
  • Any rental vehicle costs
  • Any labor costs to diagnose problems or to remove or replace the Weistec products; or any damage caused by the use of another company's product.
  • Any shipping costs.

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