ARP 241-4701 Pro-Series Head Stud Kit 12-pt M11 Hex Undercut for Chrysler 2.2L

Vehicle Fitment

• Chrysler 2.2 L 4-cylinder (M11 hex undercut, 12-pt head studs) - fitment confirmed; compatibility with other years or SOHC variants like 2.5 L noted in instructions; later models unverified

Features

• Pro-Series construction from premium 8740 chromoly steel
• Heat-treated, thread-rolled after hardening for superior fatigue strength
• 12-point head design allows multi-angle torque engagement
• M11 hex undercut provides precise seating
• Black oxide finish for enhanced corrosion resistance
• Dual socket compatibility: 1/2" 12-point and 3/16" Allen for flexibility
• Washer compatibility for even load distribution (washers included per instructions basis)
• Excellent for restoring head clamp load and preventing gasket failure in high-pressure applications

Specifications

• Material: 8740 chromoly steel
• Finish: Black oxide coating
• Head style: 12-point
• Stud design: M11 hex undercut
• Socket sizes: 1/2" 12-point, 3/16" Allen
• Manufacturing: Cold-forged, heat-treated, thread-rolled post-hardening for high fatigue resistance
• Applications: Chrysler 2.2 L (and potentially 2.5 L SOHC) 4-cylinder engines

Included Components

• 10x Pro-Series head studs (12-pt, M11 hex undercut)
• 10x hardened washers (as per kit instructions)
• Nuts not included - OEM or aftermarket specified separately

Product Description

The ARP 241-4701 Pro-Series Head Stud Kit is engineered specifically for Chrysler 2.2 L SOHC 4-cylinder engines, offering upgraded reliability through precision-engineered studs. Featuring a 12-point head and M11 hex undercut design, each stud is cold-forged, heat-treated, and thread-rolled post-hardening to maximize tensile strength and fatigue resistance.

The dual socket configuration (1/2" 12-point and 3/16" Allen) simplifies installation, while the black oxide finish resists corrosion. According to ARP installation instructions, this kit may also be applicable to 2.5 L SOHC variants. Washer hardware is included for optimal load distribution. Fitment is confirmed for the 2.2 L; compatibility beyond this is unverified at this time and should be cross-checked with specific vehicle build details.