GLOW PLUGS NEEDED DESPERATELY, 3 OF THEM.2001 IHI 35 NX with a 3LDI engine Isuzu.Serial number on the engine located right above the fuel injection pump is 4021 that's all the numbers in this area there are not 6 numbers. The numbers on the old glow plugs are as follows. NGK Y7200 IT ALSO HAS THE NUMBERS NGK 0412.I need 3 of them yet cant seem to find them even with all the information I have. Please call or write back my credit card is waiting. David HooverChattanooga, TN