Product Description
Unleash 12-valve power. The Industrial Injection PDM-12VRH Race Cylinder Head is purpose-built for high boost, big fuel, and track-duty 5.9L Cummins builds. Whether you’re chasing 900+ HP or bulletproof reliability, this fully prepped performance head delivers stronger airflow and durability for your 1989–1998 Dodge Ram 2500/3500 12-valve.
Key Features
- Performance-prepped 12V casting for high-boost race applications
- Precision valve job and port-optimized runners for improved flow
- Upgraded valve springs and retainers for high RPM stability (application dependent)
- Pressure-tested and assembled for drop-in performance*
- Designed to pair with head studs, larger injectors, and big-single/compound turbos
*Exact contents may vary by batch/option. See “What’s Included” and Specs below.
Fitment
- 1989–1998 Dodge Ram 2500 / 3500 — 5.9L Cummins 12-Valve
- Direct replacement for 12V cylinder head (will not fit 24V engines)
What’s Included
- Industrial Injection PDM-12VRH Race Cylinder Head (assembled, unless otherwise noted)
- Valve train components per build spec (guides/seals/valves/springs as applicable)
- Pre-run pressure test report (if included by manufacturer)
Recommended Supporting Mods
- MLS Head Gasket & ARP Head Studs
- Performance Exhaust Manifold (12V)
- High-Flow Injectors & Fuel System Upgrades
- Turbo Kit or Performance Turbocharger
- Complete Gasket Set & Upgraded Valvetrain
Installation Notes
- Professional installation recommended; verify surface finish and protrusion per Cummins spec
- Always use new head gasket and studs; re-torque per fastener instructions
- Tuning and fueling may be required to realize full performance gains
Specifications
| Brand | Industrial Injection |
|---|---|
| Part Number | PDM-12VRH |
| Engine | 5.9L Cummins 12-Valve (6BT) |
| Model Years | 1989–1998 (Ram 2500/3500) |
| Configuration | 12-Valve Cylinder Head, assembled (contents vary) |
| Valve Train | Upgraded springs/retainers as supplied |
| Material | Cast iron |
| Intended Use | Race/Competition (off-road) |
| UPC | N/A |
| GTIN | N/A |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
FAQs
Will this fit my 24-valve 5.9L (1998.5–2002)?
No. This head is for 12-valve engines only. For 24-valve parts, see our 5.9L 24V category.
Is machining required?
Heads are prepped for performance use, but always verify surface finish and specs for your gasket/stud combo. Minor checks/cleaning may be needed.
Do I need head studs?
Yes—especially for elevated boost. We strongly recommend ARP head studs.
What gasket set should I use?
Use a quality MLS head gasket and new seals. See our gaskets & seals.
Is this emissions compliant?
No. This product is for race/off-road use only and is not legal for use on pollution-controlled vehicles on public roads.
Recommended Parts
- ARP Head Stud Kit — 12V
- MLS Head Gasket — 12V
- 12V Performance Exhaust Manifold
- Performance Valve Springs & Retainers
- High-Flow Injectors — 12V
- Turbo Kit / Compounds
- Complete Top-End Gasket Set
Shop more from Industrial Injection and our full 5.9L 12V Cummins catalog.
