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Detroit Diesel 12.7L - Series 60 Cylinder Head
23525566
Freight Liner/Western Star Engine
OEM Applications:
23523294
23525566
23525567
23526844
8929620
8929872
Improvements to the castings include:
1, They are better than OEM quality containing 5% more nickel content in the casting material
2, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress.
3, major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure.








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