CSF factories are ISO/TSO certified;CSF Radiators are designed and built to High Performance Standards & sold worldwide for over 50 years - over 30 Million Units Sold! 1970-1974 For Toyota Land Cruiser 3.9L L6 3878cc.
I installed this on my 1977 FJ40 after the OEM one started leaking at the lower tank area. This one fit right in. The only thing I don't like is the plastic drain plug, but other than that, it is rock solid.