Industrial Injection 5.9 Cummins 12 Valve Race Head 1989-1998 - Industrial Injection

Cummins 5.9L 12 Valve Stage 2 Ported & Polished Cylinder Head w/ Fire Ring Grooves - Industrial Injection

Industrial Injection 5.9L 12 Valve Cummins Stage 2 Ported & Polished Cylinder Head (1989-1998)

Name: Industrial Injection 5.9L 12 Valve Cummins Stage 2 Ported & Polished Cylinder Head (1989-1998)
Brand: Industrial Injection
SKU: PDM-12VRH
Price: 6511.95 USD
Availability: InStock

Industrial Injection

SKU: PDM-12VRH

Price

$6,511⁹⁵

$0⁰⁰ $6,511⁹⁵

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Premium Freight Program: $300 flat-rate freight each way via Old Dominion. Core support available.

Premium Freight Coordination

Qualifying stocked Cummins Cylinder Heads ship through our coordinated flat-rate freight program with Old Dominion.

✓ $300 flat-rate freight each way

✓ Handled exclusively through Old Dominion

✓ Core return support available

✓ Questions? Call our engine team

Premium Diesel Components, Delivered with Confidence.

Industrial Injection 5.9L 12 Valve Cummins Stage 2 Ported & Polished Cylinder Head with Fire Ring Grooves (1989-1998)

The Industrial Injection Stage 2 Ported & Polished Cylinder Head is designed for 1989-1998 Dodge Ram 5.9L 12 Valve Cummins engines that demand increased airflow, enhanced durability, and superior head gasket sealing. Fully CNC ported and hand-finished, this high-performance cylinder head is built for towing, street performance, drag racing, and sled pulling applications where airflow and reliability are critical.

Featuring an intake shelf machined off to accept a performance intake runner, this Stage 2 cylinder head is optimized for maximum airflow and cylinder efficiency. Advanced CNC porting of both the intake and exhaust ports ensures consistent airflow across every cylinder, while precision hand blending provides a smooth, high-quality finish for improved performance and drivability.

Each cylinder head is assembled with premium stainless steel nitride-coated valves, hardened alloy valve guides, top hat valve seals, and upgraded 150lb valve springs to provide exceptional durability and valve train stability. Radius-cut fire ring grooves are machined into the head to provide enhanced combustion sealing when used with a compatible fire ring head gasket, helping reduce the risk of head gasket failure in high-boost applications.

To further improve reliability, drilled and tapped steel coolant freeze plugs replace the factory press-in plugs, eliminating a common failure point found in OEM cylinder heads. The 7mm injector bore design provides compatibility with popular injector upgrades, making this cylinder head an ideal foundation for both street and competition builds.

Features:

Intake shelf machined off to accept performance intake runner
Fully CNC ported intake and exhaust ports with performance hand blending
Radius-cut fire ring grooves for improved head gasket sealing
Custom performance stainless steel nitride-coated valves
Top hat valve seals
Diamond honed hardened alloy valve guides
Drilled and tapped steel coolant freeze plugs
Upgraded 150lb valve springs
7mm injector bores
Complete and ready for installation

Benefits:

Increased airflow and engine efficiency
Improved horsepower and torque potential
Enhanced combustion sealing for high-boost applications
Increased valve train stability and durability
Reduced risk of freeze plug and head gasket failures
Compatible with performance injector upgrades
Optimized for towing, street performance, sled pulling, and racing applications
Built to withstand higher cylinder pressures and demanding operating conditions

Important Notes:

Fire Ring Head Gasket sold separately.
Performance Intake Runner sold separately.

Why Choose Industrial Injection?

Built using advanced CNC machining technology and premium valvetrain components, the Stage 2 Ported & Polished Cylinder Head delivers the airflow, strength, and reliability needed to support serious horsepower while maintaining the durability that 12 Valve Cummins owners expect.

Shipping information

Free economy ground shipping on most orders over $200. This includes lower 48 United States only. Excludes products that must ship freight.

Core Return Info

Read Carefully!

When you purchase a product from our website that has a core requirement, you have two options:

1. You choose to pay the core charge and we will ship the product right away, then once we receive the cores you will be refunded the core charge if your cores pass our inspection qualifications. This is the preferred choice and has the least delays.

2. You choose to send in your cores before we ship the product that was purchased. This choice has the risk of delayed shipment of your purchased product and our inventory is not guaranteed by the time we receive your cores. You will need to follow all of the instructions below as quickly as possible so that you can get your purchased product and we can receive the cores. When you choose this option you acknowledge that by the time we receive your cores, our inventory could have change and there could be a delay in your shipment.

Please return all cores to:

Industrial Injection Core Returns
2858 South 300 West
Salt Lake City, Utah 84115

INCLUDE RA# THAT WAS ISSUED AT TIME OF PURCHASE! If RA # is lost, please call Customer Service at (800) 955-0476. Have your original invoice at time of phone call to give all appropriate information for return.

Core return freight is the responsibility of the customer

FULL CREDIT WILL BE GIVEN WHEN:

In order to receive full core credit, your core(s) must be returned within 90 days from receipt of order. It must be as is “off the engine.” Full core credit will be given if core meets acceptance criteria. Cores that are damaged during shipment to Industrial Injection are the responsibility of the customer and their shipping company.

½ CORE CHARGE CREDIT WILL BE GIVEN WHEN:

Slightly damaged housing or camshaft
Missing parts such as FCA

No Core Credit issued when:

Core is seized or hydraulic head is cracked
Excessive damage ( Heavy use of Bio-diesel and rust are common causes for unacceptable core)
Core is fire damaged
Core is returned after 90 days/3months

Please do the following when returning a core:

Make sure you have removed all fittings from your old unit
Drain all fuel and oil from unit
Package cores so that fuel and oil does not escape from the package

NOTE: packages that have fuel or oil residue on the outside of the box during shipping will not be delivered by UPS or the postal service which will cause delays.

Please re-use boxes and bags that parts were shipped in originally. These boxes are UPS approved to reduce damage while being handled in freight.
All shipping charges are the responsibility of the customer
Please write on the box “Core Return” and have RA # clearly written on the outside of box
Include copy of original invoice and RGA inside box

PLEASE RETAIN RA#, INVOICE # AND TRACKING NUMBER UNTIL CREDIT IS RECEIVED BY YOU. We do not research by customer name, only invoice # or RA #.