ARP 247-4203 HEAD STUD KIT FOR 1989-1998 5.9L CUMMINS 12V

Product Description

The ARP 247-4203 Head Stud Kit is a proven upgrade for 1989-1998 Dodge Ram 5.9L Cummins 12V engines that need stronger cylinder head clamping than factory head bolts can provide. This kit is ideal for performance tuning, upgraded turbochargers, heavy towing, and builds where improved head gasket retention is critical.

Built with premium ARP fastener technology, the 247-4203 kit helps reduce the risk of cylinder head lift and head gasket failure under increased boost and cylinder pressure. It is a strong choice for street-driven trucks, tow rigs, and modified 12-valve Cummins applications.

FEATURES

• Designed for 1989-1998 5.9L Cummins 12-valve engines
• Improves cylinder head clamping force over factory bolts
• Helps protect against head gasket failure under high boost
• Ideal for towing, street performance, and modified diesel builds
• Includes studs, nuts, washers, lubricant, and instructions
• Reusable when inspected and installed correctly

FITMENT

• 1989-1993 Dodge Ram 250/350 5.9L Cummins 12V
• 1994-1998 Dodge Ram 2500/3500 5.9L Cummins 12V

WHAT'S INCLUDED

• ARP head studs
• ARP 12-point nuts
• Hardened washers
• ARP fastener lubricant
• Installation instructions

CROSS-REFERENCE & RELATED PRODUCTS

• ARP 247-4205 625 Series Head Stud Kit for 1989-1998 5.9L Cummins 12V
• ARP 247-4204 625 Series Head Stud Kit for 1998.5-2024 5.9L/6.7L Cummins 24V
• Cummins Engine Parts
• ARP Diesel Fasteners

WHY UPGRADE TO ARP HEAD STUDS?

Factory head bolts can become a weak point when boost, fueling, towing load, or cylinder pressure increases. ARP head studs provide stronger and more consistent clamping force to help keep the cylinder head sealed to the block, making them one of the most important upgrades for a modified 12-valve Cummins.

SPECIFICATIONS

FAQ

Will ARP 247-4203 fit my 12-valve Cummins?

Yes. ARP 247-4203 is designed for 1989-1998 Dodge Ram trucks equipped with the 5.9L Cummins 12-valve engine.

Are ARP head studs better than factory head bolts?

Yes. ARP head studs provide stronger and more consistent clamping force than factory head bolts, especially in modified engines running higher boost or increased cylinder pressure.

Are these recommended for towing?

Yes. This kit is a strong upgrade for towing applications, especially when the truck has fueling, turbocharger, tuning, or exhaust upgrades.

Can ARP head studs be reused?

Yes. ARP head studs can typically be reused when they are properly inspected and installed according to ARP specifications.