Forklift Core Design Options offers various core styles in the FORKLIFT radiator line.

To give you a better idea of what you may need, here is a brief description of the core types you may run across:

Flat Fin Core: Usually fewer fins per inch so that debris may flow through or be blown out- Staggered rows of cooling tubes.

SNL Style Core: Serpentine style fins with anywhere from 6 to 10 fins per inch- Usually inline rows of cooling tubes.

"Cotton" or "Feedlot" Style Core: Flat fin style core with minimal fins per inch- Great for use in a dirty environment.  Inline rows of cooling tubes.