SKU: 50727737720

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

$640.78 $711.98
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Description

Industrial Injection Premium Stock Plus Cylinder Head 12-Valve 89-98 Ram 5.9L CumminsPlanning on rebuilding your 12 Valve Cummins and looking to boost power at the same time? 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. Precision Remanufacturing Process for Cylinder Heads Every remanufactured cylinder head undergoes a

Planning on rebuilding your 12-Valve Cummins and looking to boost power at the same time? 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.

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: 50727737720

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4.4 ★★★★★
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Product Reviews
W
Verified Purchase
Wilbur F. Pierce
Charlottesville, US
★★★★★ 5
An Excellent Choice
Format: Paperback
Excellent introduction, notes and translation.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2017
D
Verified Purchase
David Lemberg
San Leandro, US
★★★★★ 5
Five Stars
Format: Paperback
Professor Cornford's translation with running commentary is definitive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 5, 2015
J
Jordan Bell
New York, US
★★★★★ 5
Plato's dialogue about the physical world
Format: Paperback
The two biggest topics in the Timaeus are astronomy and the elements of bodies, which are constructed using triangles and the tetrahedron, octahedron, icosahedron, and cube. I would like to see a translation of the Timaeus that uses it as a way to introduce all the astronomy that appears in the dialogue. Introducing the astronomy does not mean just talking in words about spheres or the zodiac or the ecliptic, but actually explaining how these were used by astronomers. Cornford has much to say, but to someone who has not learned any Greek astronomy his commentary will be opaque and hard to use. I didn't know the astronomy well enough to readily understand Cornford's explanations. I plan to learn more classical Greek astronomy, perhaps using Evans' , and then read Waterfield's translation of the Timaeus . Before reading this you should have read the Republic and know some classical Greek natural philosophy, mathematics, and astronomy. Although Cornford's commentary makes the dialogue staccato, I am glad for it because I wouldn't otherwise have understood much of what Plato says. The Timaeus and the Parmenides are the two dialogues of Plato that one needs commentary to understand; the Parmenides demands the commentary because so much of what is happening depends on the original language, and the Timaeus demands the commentary because of all the things the reader is supposed to be familiar with. The following is a list of topics I kept while reading the dialogue: theory of Forms 27d-28a, 51a-52a; harmonics 35b-36b; time 37c-38e, 39b-e; vision 45b-46c, 67c-68d; space 52b; surfaces 53c; weight 62d-63e; sound 67a-67c; physiology 70c-79e, 80d-86a; antiperistasis 79e-80c.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2015
S
Steve Lookner
Carnegie, US
★★★★★ 4
Helpful, but Waterfield is better for an intro
Format: Paperback
This is basically a scholarly paragraph-by-paragraph commentary on the Timaeus. It's really good for what it is, but I don't recommend it as your first introduction to the Timaeus -- rather, I recommend Waterfield: http://www.amazon.com/Timaeus-Critias-Oxford-Worlds-Classics-ebook/dp/B006NTMD16 A problem with using Cornford as an introduction is that he comments on everything, and it's hard to figure out what the main themes are. I tried reading Cornford as an intro and gave it up, but once I'd read Waterfield I found Cornford extremely helpful both in elucidating passages further than Waterfield does, and in interpreting passages Waterfield doesn't cover. So if you're looking to learn about the Timaeus, I'd suggest Waterfield first and Cornford second (or Cornford alongside Waterfield).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2014
B
Brian Chrzastek
Los Angeles, US
★★★★★ 5
Cornford's running commentary is arguably the best suited to fulfill this desire
Readers of any of Plato's works are bound to feel they might profit from various commentaries. His Timaeus, in particular, may be said to elicit such a hope because of number and intricacy of its details. Cornford's running commentary is arguably the best suited to fulfill this desire: it helps make clear the integrity of the dialogue as a whole and illumines the specific points along the way. Although this work is certainly dated, originally published in 1937, it is certainly one of the best full commentaries on the Timaeus.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 4, 2014

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