I purchased a C1917 KOYO radiator on ebay from gopart last week. Members seem to be having good luck with them. I received a radiator for 246.00 plus shipping in a KOYO box. After removing and inspecting the radiator the core seemed to be aluminum and a two row. I tried to contact gopart many times last week and this week by all three of their contact options. Email, live chat, and phone with no success. I contacted (Kevin) at KOYO in Southern California this morning and they wanted pictures of the unit and box. They soon called back and informed me that I had received a counterfit item from a company gopart that they don't even sell to or have any vender information on. The first information they shared was that C in the C1917 is for a copper core. The core copper and should be painted black. My unit was aluminum and no paint. The weight of the unit was also a lot lighter than it should have been. My unit is still in the so called KOYO box and KOYO told me that the packaging was also incorrect. I'm now trying to get a refund. Just a heads up for everyone. The stock 94 LC is a three row copper or brass core. The KOYO replacemet is C1917 two row unit with black painted copper core.
