Product Description
Industrial Injection PDM-06021 Gorilla Girdle Kit — 12mm w/ ARP XL Main Studs — Fits 1989–2002 Dodge Ram 2500/3500 5.9L Cummins
Lock down the bottom end of your 5.9L Cummins. The Industrial Injection Gorilla Girdle (PDM-06021) ties the main caps and oil pan rail together to reduce cap walk and block flex, improving main bore alignment and durability at elevated power levels. This 12mm kit includes ARP XL main studs and all hardware required for a clean install.
Key Benefits
- Increases block rigidity to help prevent main cap walk and bearing wear.
- Improves main bore alignment for smoother operation at higher RPM and power.
- Includes ARP XL 12mm main stud kit for superior clamping force.
What’s Included
- Gorilla Girdle plate
- 14 top spacers (large hole) & 12 bottom spacers (small hole)
- Rear main spacer bar
- New oil pan bolts and lock washers
- Oil pickup spacer with bolts
- (2) rear main stud nuts (12-point)
- (12) main stud nuts (Nylock)
Fitment
- 1989–2002 Dodge Ram 2500/3500 5.9L Cummins (12-valve & 24-valve, 2nd-gen platform)
- 12mm main studs configuration
Installation Notes
- Torque guidance (12mm ARP 2000): 125 ft-lbs (verify procedure with ARP instructions).
- Verify your main stud diameter (12mm vs 14mm) before ordering.
Helpful Links (On Our Site)
- Shop all Industrial Injection
- Engine Girdles & Bottom-End Hardware
- ARP Fasteners & Stud Kits
- 1989–2002 Cummins 5.9L Parts
Recommended Parts
- ARP Cummins Main Stud Kit (spares & service parts)
- Rear Main Seal
- Oil Pan Gasket
- Oil Pickup Tube (as needed)
FAQ
Q: Will this fit my 1989–2002 5.9L Cummins?
A: Yes, this PDM-06021 kit is designed for 1989–2002 Dodge Ram 2500/3500 5.9L Cummins with 12mm mains.
Q: Do I need machine work?
A: Typically no machining is required, but always mock-up and check clearances. Some builds may require pan or pickup adjustments.
Q: Torque specs?
A: For 12mm ARP 2000 hardware, 125 ft-lbs is commonly referenced. Always follow the latest ARP instructions for your specific studs.
Specifications
| Brand | Industrial Injection |
|---|---|
| Part Number (MPN) | PDM-06021 |
| Fitment | 1989–2002 Dodge Ram 2500/3500 5.9L Cummins (12V/24V), 12mm |
| Hardware | Includes ARP XL 12mm main studs |
| UPC | 840256913545 |
| GTIN | 840256913545 (GTIN-12/UPC-A) |
| Prop 65 | WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. |
