ARP 201-5402 Main Stud Kit for 2016-2025 BMW B58 3.0L I6

Vehicle Fitment

• 2016-2025 BMW 3 Series (F30, F31, F34, G20, G21) (330i, 330e, M340i) (B58 3.0L I4)
• 2016-2025 BMW 4 Series (F32, F33, F36, G22, G23) (430i, 430e, M440i) (B58 3.0L I4)
• 2016-2025 BMW Z4 (G29) (M40i) (B58 3.0L I4)
• 2016-2025 Toyota Supra (A90, A91) (GR) (B58 3.0L I6)

Features

• Eliminates main cap walk and fretting
• Protects threads in the engine block
• Manufactured from 8740 chromoly steel
• Heat-treated to 190,000 psi tensile strength
• Precision J-formed threads rolled after heat treatment
• Black oxide finish for corrosion resistance
• Includes hardened parallel-ground washers
• Comes with aerospace-quality nuts

Specifications

• Socket Size(s): 13mm 12-point, 8mm 12-point, 4mm Allen
• Thread Size: M12x1.5
• Torque: Tighten in 3 steps (20 ft/lbs, 40 ft/lbs, 60 ft/lbs)
• Finish: Black oxide

Included Components

• 1x Main Stud Kit
• 16x 12-point nuts
• 16x Hardened parallel-ground washers
• 1x ARP logo sticker

Product Description

The ARP 201-5402 Main Stud Kit is designed for BMW B58 3.0L inline-4 engines and Toyota Supra A90/A91 models with the B58 3.0L inline-6 engine. It prevents main cap walk and fretting, ensuring a stable and reliable engine bottom end.

Constructed from 8740 chromoly steel and heat-treated to 190,000 psi, the studs feature J-formed threads rolled after heat treatment for exceptional durability. The kit includes hardened parallel-ground washers and aerospace-quality nuts with a black oxide finish for added corrosion resistance.

Ideal for street or track applications, this kit provides superior clamping force to maintain engine integrity under high-stress conditions, making it an essential upgrade for performance enthusiasts.