Featuring re-useable Weistec ARP Head Studs
Featuring re-useable Weistec ARP Head Studs
Fix Excessive Valve Lash and Accelerated Wear to the Valvetrain
Genuine Mercedes-Benz Replacement Part - Upgrade for any M156 / M159 Engine!
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
11-01-2026
Strengthen your M156 AMG engine with ARP 625 Inconel Head Studs, engineered to withstand extreme cylinder pressures and provide reliable protection against factory head bolt failures.
Fully assembled, and Ready to run heads!