SKU: 41722723880

Industrial Injection Premium Stock Plus Cylinder Head 12-Valve With Fire Ring Groove 89-98 Ram 5.9L Cummins

Sale price$844.63 Regular price$938.48
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Industrial Injection Premium Stock Plus Cylinder Head 12-Valve With Fire Ring Groove 89-98 Ram 5.9L CumminsThinking about upgrading to Fire Rings in your 12 Valve Cummins? Radius cut fire ring grooves create a stronger, more reliable combustion seal, allowing a 12 Valve Cummins engine to handle higher boost and cylinder pressure without head gasket failure. If you are planning on pushing your Cummins power to the limit, ensure your engine can withstand the extra stress that higher performing injectors and fuel systems can impose with a cylinder head

Thinking about upgrading to Fire Rings in your 12-Valve Cummins? Radius-cut fire ring grooves create a stronger, more reliable combustion seal, allowing a 12-Valve Cummins engine to handle higher boost and cylinder pressure without head gasket failure. If you are planning on pushing your Cummins power to the limit, ensure your engine can withstand the extra stress that higher-performing injectors and fuel systems can impose with a cylinder head designed to handle it. Get an affordable and reliable upgraded head with Industrial Injection's Premium Stock Plus Cylinder Head.

NOTE: Fire Ring Head Gasket Sold Separately. Installation of a fire ring gasket requires high yield head studs to ensure proper seat of the head to the cylinder block.

Precision Remanufacturing Process for Cylinder Heads

Every remanufactured cylinder head undergoes a detailed cleaning, inspection, and machining process to ensure it meets strict quality standards for diesel engine performance, durability, and reliability. This comprehensive remanufacturing process helps restore the strength and efficiency expected from a Cummins diesel engine.

Thorough Cleaning & Inspection

Each cylinder head begins with a deep cleaning process to remove contaminants and prepare the casting for inspection and machining.

  • High-pressure jet washing removes oil, grease, and debris
  • Glass bead blasting eliminates carbon buildup from the casting
  • Magnaflux inspection (for cast iron heads) detects hidden cracks
  • Pressure testing verifies structural integrity
  • Visual inspection ensures the casting is free of defects

Valve guides and valve seats are removed as needed to prepare the cylinder head for machining or port work.

Upgraded Heat-Treated Valve Guides

New high-strength alloy valve guides are installed to improve durability and longevity in demanding diesel engine environments. These guides are heat treated to Rockwell 22 “C” scale, delivering exceptional wear resistance that exceeds many factory materials, including bronze.

Each valve guide also features a precision spiral groove designed to retain oil and improve valve stem lubrication during engine operation.

Precision Diamond Honed Valve Guides

Instead of traditional reaming, the valve guides are precision honed using diamond abrasives. Diamond honing ensures consistent accuracy across every cylinder head.

This process provides:

  • Exact valve guide sizing
  • Consistent bore geometry
  • Smooth internal surface finish
  • Improved valve alignment and longevity

Each guide is verified using a valve guide bore gauge to ensure proper tolerances.

Multi-Angle Performance Valve Job

To improve airflow and combustion efficiency, the cylinder head receives a precision multi-angle valve job using a Serdi 100 guide and seat machine.

The Serdi system uses a solid carbide straight shank pilot inserted into the valve guide to simulate the valve stem during machining. This process ensures perfect alignment between the valve seat and valve face, creating an optimal seal and maximizing airflow in and out of the cylinder head.

Precision Cylinder Head Surfacing

Each cylinder head is resurfaced using CBN or diamond tooling on a Berco milling machine. This machining process restores a perfectly flat sealing surface and allows technicians to control the finish based on the head gasket being used.

For example, MLS (Multi-Layer Steel) head gaskets require an extremely smooth surface finish to ensure proper sealing in high-pressure diesel engines.

Final Assembly

Once all machining processes are complete, the cylinder head is:

  • Jet washed again for final cleaning
  • Thoroughly dried
  • Assembled with new valve seals
  • Equipped with new performance valve springs

The result is a high-quality remanufactured diesel cylinder head built for dependable performance in demanding Cummins engine applications.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 41722723880

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 1001 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
R
Verified Purchase
Ryan Chung
Lexington, US
★★★★★ 5
So small! But it works
Size: 6.8oz/200ml Silver
Perfect for making cortados. Easy to clean — dishwasher safe.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
R
Verified Purchase
Rickter
Whiting, US
★★★★★ 5
Nice shape, highly polished, 200ml, 5+ stars.
Size: 6.8oz/200ml Silver
Very nice, highly polished with the feel of quality for the price. I'm very much an amateur barista. A trip to Italy inspired me to buy an espresso machine. I gained a whole new respect for coffee in Europe. The pitcher with my machine was too big to copy the Euro style cafe. Small quantities of milk were too shallow to froth properly even when tilting. The barista I watched in Italy was using a small pitcher so I decided to buy the 200ml version. It's a perfect size allowing a small amount of milk to be deep enough to froth. I brought back some roasted Italian coffee beans back to USA and wow! I'm very much a beginner but having fun.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
C
Verified Purchase
Coco
San Leandro, US
★★★★★ 5
Incredible quality, just buy the right size (I did not)
Color: A Silver, Size: 12 Ounces, Color: A Silver, Size: 12 Ounces
For anyone interested in this product, here’s a quick guide (from a coffee snob) • 12oz (what I got, pictured) - fine for small drinks (standard mug) at home. one drink, and you never plan on using this for any larger drinks • 20oz - the home kitchen sweet spot. if you’re filling a Stanley or Yeti traveler this is probably your size. One caveat, you’ll have no wiggle room and will be maxing your milk froth to the brim. if you like cappuccino’s get the 32oz. • 32oz - this is what’s behind the counter at every coffee shop you’ve ever been to. if you’ve worked a bar shift at Starbucks you’ve held this pitcher a thousand times. If you like a lot of foam (cappuccinos) i would suggest anyone serious about at home use to get this one. I’ve worked in coffee shops since I was like 16 and I still ordered the 12oz like a complete idiot. I posted comparison photos if you want a good laugh. The pitcher is smaller than a regular coffee mug. Not a travel mug, not a big mug, just a normal everyday mug. Bigger than the pitcher. I measured nothing and paid the price. Returning it and ordering the 32oz of the same exact pitcher so that should tell you the quality is legit. Feels exactly like what we used behind the bar, well made, solid, nothing cheap about it. Just bought the wrong size. For anyone also about to make my mistake: the 12oz works if you’re making one small drink at home and that’s it. The 20oz is probably the right call for most people, fills a Stanley or Yeti no problem. The 32oz is the coffee shop size, if you’ve ever worked a bar at Starbucks or anywhere else you’ve used that size a thousand times and it’ll feel right immediately. Great pitcher. Wrong size. My fault entirely.​​​​​​​​​​​​​​​​
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
G
Verified Purchase
G. Tompkins
West Palm Beach, US
★★★★★ 5
Excellent in every respect, regardless of price. Just get the right size for your needs.
Color: A Silver, Size: 12 Ounces
Over time I've accumulated several milk steaming pitchers, a few of which were 3 or 4x the price, and yet I keep coming back to this one. The build quality is surprisingly high, the volume markings are very clearly etched on the inside and easy to read, it has a nice no-drip spout for pouring, and it still looks as good as new after daily use; No sign of wear and tear or staining on the metal even with high heat milk steaming. This is one of those rare low price/high quality products I only rarely run across.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
H
Verified Purchase
Home And Travel With Midz!
West Palm Beach, US
★★★★★ 5
Lovely milk pitcher
Color: A Silver, Size: 12 Ounces, Color: A Silver, Size: 12 Ounces
This milk pitcher is so durable and light weight. Its great value for money and feels expensive. Its easy to use and also easy to clean. It pours very well and fits perfectly on my coffee machine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026

recommand products