247-4202

ARP Head Stud Kit Dodge Cummins 5.9L/6.7L 24V '98-present

As a favorite among top professional engine builders and racers, the ARP cylinder head studs use only the best premium grade 8740 alloy with heat-treated vertical fixtures, insuring total heat penetration. This 8740 alloy is actually rated better than aircraft quality and the studs are centerless ground for precise concentricity. What also sets them apart is that the threads are rolled ten times, allowing for much better fatigue strength. While this doesn't put ARP head studs as the cheapest on the market, it does ensure the best possible quality for the product, so you can buy with confidence. 

247-4204

Dodge Cummins 5.9L/6.7L 24V '98-pres CA625+ Head Stud Kit

With increased performane demands there is an increase in the volume of turbo boost needed on diesel applications. With ARP's extra-durable head studs built from their proprietary Custom Age 625+® material, you get a matieral with a 260,000 psi tensile strength, providing the best clamping force to keep your cylinder heads from lifting during high combustion pressure releases. These stud kits are also heat-treated with 12-point chrome moly steel nuts and parallelground washers, all manufactured with rolled threads for optimum fatigue strength. Centerless grounded for perfect concentricity, these studs are broached for easy installation and removal in tight spaces.

247-4203

Dodge Cummins 5.9L 12V '89-'98, ARP2000, black oxide Head Stud Kit

247-4206

ARP Head Stud Kit Dodge Cummins 4BT diesel, ARP2000

 Top professional engine builders and enthusiasts know that ARP Pro Series head studs are the best you can get. Using a premium grade 8740 alloy that is rated far superior to “aircraft” quality, each stud is placed vertically in special racks and precisely heat-treated to 200,000 psi, giving them 10 times the fatigue strength of other studs. Centerless grounded for near-perfect concentricity (something lesser quality studs don't even do), this allows for all parts to slide effortlessly into position and alignment.

247-4207

ARP Head Stud Kit Dodge Cummins 4BT diesel, Custom Age 625+

The ARP 247-4207 features centerless grounding, heat-treated before thread rolling, and is rated at 270,000 psi, giving it 50% more strength than other head studs.

This head stud kit comes with:

• 18 Custom Age 625+ head studs
• 19 parallel ground washers
• 18 chrome moly steel 12-point nuts
• 4 8740 M8 rocker arm stand bolts
• ARP Ultra-Torque Fastener Lubricant (recommended over using regular motor oil)