Product Description
ARP 247-4205 HEAD STUD SET 625 SERIES FOR 1994-1998 5.9 CUMMINS ENGINE
Dominate high boost with the ARP 247-4205 Custom Age 625+ Head Stud Set for the 1994–1998 5.9L Cummins 12-valve. Engineered for extreme cylinder pressures, these studs deliver massive, repeatable clamping force to keep head gaskets sealed on hard-working tow rigs and high-horsepower street/strip builds. Each stud is cold-forged for superior grain flow, heat-treated prior to thread rolling, and paired with hardened parallel-ground washers and 12-point nuts for accurate torque and even load distribution. Install once—drive with confidence.
FAQ — WHAT ENGINES DOES ARP 247-4205 FIT?
Designed for 1994–1998 Dodge Ram 2500/3500 with the 5.9L Cummins 12-valve (6BT).
FAQ — WHY CHOOSE CUSTOM AGE 625+ OVER STANDARD STUDS?
625+ material provides higher tensile strength and improved fatigue life for high-boost, high-cylinder-pressure builds—ideal when tuning, larger turbos, or heavy towing are in the plan.
FAQ — WHAT’S INCLUDED IN THE KIT?
(26) studs, (26) 12-point nuts, (26) hardened washers, and assembly lube, plus instructions.
FAQ — TORQUE SPECS?
Follow ARP’s included instructions for lube and torque sequence. Re-torque after initial heat cycles if your gasket builder recommends it.
FAQ — DO I NEED MACHINE WORK?
Most installs do not require machine work, but always check deck/head flatness and surface finish when replacing a head gasket.
Fitment
- 1994–1998 Dodge Ram 2500/3500
- 5.9L Cummins 12-Valve (6BT, P7100-equipped)
Cross Reference & Recommended ARP Upgrades
- ARP 247-4203 Standard Head Stud Kit (1989–1998 12V)
- ARP 247-5402 Main Stud Kit — 14mm (1989–1997 12V)
- ARP 247-5401 Main Stud Kit — Without Factory Girdle (1997.5+)
- ARP 147-2802 Flywheel Bolt Kit (1989–2004 Cummins 5.9L)
- ARP 147-2502 Harmonic Balancer Bolt Kit (1989–2007 Cummins 5.9L)
- ARP Ultra-Torque Assembly Lube (100-9909)
Specifications for ARP 247-4205
| Brand | ARP (Automotive Racing Products) |
|---|---|
| Part Number | 247-4205 |
| Material | Custom Age 625+ (high tensile, high fatigue strength) |
| Contents | (26) studs, (26) 12-pt nuts, (26) hardened washers, assembly lube, instructions |
| Fitment | 1994–1998 Dodge Ram 2500/3500, 5.9L Cummins 12-Valve |
| UPC | 672036035655 |
| GTIN | 672036035655 (GTIN-12) |
| Shipping Info | Typically ships same business day on in-stock orders placed before 2:00 PM ET; shipping calculated at checkout. |
| Cross Reference | 247-4203, 247-5402, 247-5401, 147-2802, 147-2502 |
| E-Codes | N/A (hardware/fastener; not an emissions-controlled device) |
| Prop 65 | WARNING: This product can expose you to chemicals (including nickel and/or lead compounds) known to the State of California to cause cancer and birth defects or other reproductive harm. For California consumers only. |
| Package Dimensions | Approx. 10.00" L × 8.00" W × 4.00" H |
