Industrial Injection 5.9 Cummins 12 Valve Performance Head 1989-1998 - Industrial Injection
Industrial Injection 5.9 Cummins 12 Valve Performance Head 1989-1998 - Industrial Injection
Cummins 5.9L 12 Valve Stage 2 Ported & Polished Cylinder Head w/ Fire Ring Grooves - Industrial Injection
Industrial Injection 5.9 Cummins 12 Valve Performance Head 1989-1998 - Industrial Injection
Industrial Injection 5.9 Cummins 12 Valve Performance Head 1989-1998 - Industrial Injection
Cummins 5.9L 12 Valve Stage 2 Ported & Polished Cylinder Head w/ Fire Ring Grooves - Industrial Injection

Industrial Injection 5.9 Cummins 12 Valve Stage 1 Ported & Polished Cylinder Head (1989-1998)

Industrial Injection SKU: PDM-12VSTH
Price
Regular price $3,84095
Regular price $000 Sale price $3,84095
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Premium Freight Program: $300 flat-rate freight each way via Old Dominion. Core support available.
Shipping calculated at checkout.
Industrial Injection Premium Freight Program

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.

1989-1998 5.9L Cummins 12 Valve Stage 1 Ported & Polished Cylinder Head with Fire Ring Grooves

The Industrial Injection Stage 1 Ported & Polished Cylinder Head with Fire Ring Grooves is engineered for 1989-1998 Dodge Ram 5.9L 12 Valve Cummins engines seeking improved airflow, enhanced durability, and superior head gasket sealing. Utilizing advanced CNC porting technology and precision hand-finishing, this cylinder head delivers increased airflow and performance while maintaining the reliability needed for daily driving, towing, and high-horsepower applications.

Each cylinder head is CNC ported and hand blended to ensure consistent airflow across every cylinder. The 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 control.

For added reliability, the cylinder head features drilled and tapped coolant freeze plugs, eliminating a common failure point found in factory cylinder heads. Radius-cut fire ring grooves are machined into the head to provide improved combustion sealing when used with a compatible fire ring head gasket, helping reduce the risk of head gasket failure under increased cylinder pressures.

The 7mm injector bore design offers compatibility with popular injector upgrades, making this cylinder head an ideal choice for street, towing, and performance-focused 12 Valve Cummins builds.

Features:

  • CNC ported cylinder head 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 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
  • Greater valve train stability and reliability
  • Reduced risk of freeze plug and head gasket failures
  • Compatible with performance injector upgrades
  • Ideal for towing, street, and competition builds

Applications:

  • 1989-1998 Dodge Ram 2500/3500 5.9L 12 Valve Cummins Engines

Important Note:

  • Fire Ring Head Gasket sold separately.
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 #.
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