ARP Main Stud Kit for Toyota 2JZ-GE / 2JZ-GTE (203-5405)

The ARP 203-5405 Main Stud Kit reinforces the bottom end of Toyota 2JZ-GE and 2JZ-GTE 3.0L inline-six engines. Replacing factory main cap bolts with high-tensile ARP studs prevents main cap walk and bearing fretting during high-RPM and heavy-boost operation.

Precision ground and thread-rolled post heat-treat from 8740 chromoly steel (rated at 190,000–200,000 PSI), these studs distribute clamping forces deep into the cast iron block to safeguard threads against galling.

Key Features & Benefits:

• Eliminates Main Cap Walk: Keeps main caps firmly seated to protect bearings and maintain crankshaft alignment.
• Thread Integrity Protection: Distributes clamping pressure deep into block threads to prevent stripping under heavy torque.
• Complete Installation Kit: Includes studs, hardened parallel washers, 12-point nuts, and assembly lubricant.

Technical Specifications:

• Material / Build: Main Studs
• Warranty: Official Manufacturer Limited Warranty
• Brand: ARP